/* ============================================
   HARIS SOHAIL PORTFOLIO - CLOUDFLARE INSPIRED
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg-primary: #0d0d0d;
    --color-bg-secondary: #141414;
    --color-bg-tertiary: #1a1a1a;
    --color-bg-card: #1f1f1f;

    --color-text-primary: #ffffff;
    --color-text-secondary: #a3a3a3;
    --color-text-tertiary: #737373;

    --color-accent-primary: #f6821f;
    --color-accent-secondary: #fbad41;
    --color-accent-blue: #0051ff;
    --color-accent-purple: #7c3aed;
    --color-accent-cyan: #06b6d4;

    --gradient-primary: linear-gradient(135deg, #f6821f 0%, #fbad41 100%);
    --gradient-secondary: linear-gradient(135deg, #0051ff 0%, #7c3aed 100%);
    --gradient-glow: linear-gradient(135deg, rgba(246, 130, 31, 0.3) 0%, rgba(251, 173, 65, 0.1) 100%);
    --gradient-dark: linear-gradient(180deg, #0d0d0d 0%, #141414 100%);

    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(255, 255, 255, 0.2);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --section-padding: 80px;
    --container-max: 1200px;

    /* Effects */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px rgba(246, 130, 31, 0.3);
}

/* Light Mode Variables */
[data-theme="light"] {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f5f5f5;
    --color-bg-tertiary: #e5e5e5;
    --color-bg-card: #ffffff;

    --color-text-primary: #171717;
    --color-text-secondary: #525252;
    --color-text-tertiary: #737373;

    --color-border: rgba(0, 0, 0, 0.1);
    --color-border-hover: rgba(0, 0, 0, 0.2);

    --gradient-dark: linear-gradient(180deg, #ffffff 0%, #f5f5f5 100%);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 60px rgba(246, 130, 31, 0.2);
}

[data-theme="light"] #particle-canvas {
    opacity: 0.3;
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .hero-globe {
    opacity: 0.03;
}

[data-theme="light"] .gradient-text {
    background: linear-gradient(135deg, #d35400 0%, #e67e22 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

[data-theme="light"] .btn-primary {
    color: #ffffff;
}

[data-theme="light"] .profile-card,
[data-theme="light"] .timeline-card,
[data-theme="light"] .skill-category,
[data-theme="light"] .cert-card,
[data-theme="light"] .edu-card,
[data-theme="light"] .resume-card,
[data-theme="light"] .semester-project-card,
[data-theme="light"] .language-card {
    box-shadow: var(--shadow-md);
}

[data-theme="light"] .tool-tag,
[data-theme="light"] .tech-tag,
[data-theme="light"] .project-card-tech span,
[data-theme="light"] .courses-list span,
[data-theme="light"] .resume-tag {
    background: var(--color-bg-secondary);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Particle Canvas */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-border-hover);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.logo-text {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.logo-dot {
    width: 8px;
    height: 8px;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    background: var(--gradient-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    transform: rotate(15deg);
}

[data-theme="light"] .theme-toggle {
    background: var(--color-bg-secondary);
}

.nav-cta-btn {
    white-space: nowrap;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-globe {
    position: absolute;
    top: 50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle at center, rgba(246, 130, 31, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    transform: translateY(-50%);
    animation: pulse-glow 4s ease-in-out infinite;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top left, rgba(0, 81, 255, 0.1) 0%, transparent 50%),
                radial-gradient(ellipse at bottom right, rgba(246, 130, 31, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: translateY(-50%) scale(1); }
    50% { opacity: 0.8; transform: translateY(-50%) scale(1.05); }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: #22c55e;
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(48px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.rotating-text {
    position: relative;
    display: inline-block;
    color: var(--color-accent-primary);
}

.rotating-word {
    position: absolute;
    left: 0;
    opacity: 0;
    transition: opacity var(--transition-slow);
    white-space: nowrap;
}

.rotating-word.active {
    position: relative;
    opacity: 1;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 40px;
    padding: 24px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.profile-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.profile-image-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto 24px;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    position: relative;
    z-index: 2;
}

.profile-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid var(--color-accent-primary);
    border-radius: 50%;
    animation: ring-spin 10s linear infinite;
}

.profile-ring.ring-2 {
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border-color: rgba(246, 130, 31, 0.3);
    animation-direction: reverse;
    animation-duration: 15s;
}

@keyframes ring-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.profile-info h3 {
    font-size: 24px;
    margin-bottom: 4px;
}

.profile-info p {
    color: var(--color-text-secondary);
    font-size: 15px;
    margin-bottom: 12px;
}

.profile-location {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text-tertiary);
    font-size: 13px;
}

.profile-location i {
    color: var(--color-accent-primary);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--color-text-tertiary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    position: relative;
}

.scroll-dot {
    width: 4px;
    height: 8px;
    background: var(--color-accent-primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-bounce 2s infinite;
}

@keyframes scroll-bounce {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0.5; }
}

/* ============================================
   CLIENTS SECTION
   ============================================ */
.clients-section {
    padding: 60px 0;
    border-bottom: 1px solid var(--color-border);
}

.clients-label {
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
}

.clients-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.client-item {
    opacity: 0.5;
    transition: opacity var(--transition-normal);
}

.client-item:hover {
    opacity: 1;
}

.client-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

/* Mobile Marquee - Hidden on desktop */
.clients-marquee {
    display: none;
}

/* Marquee Animation - moves each content block by 100% of its width */
@keyframes marqueeScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* ============================================
   SECTION STYLES
   ============================================ */
section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(246, 130, 31, 0.1);
    border: 1px solid rgba(246, 130, 31, 0.2);
    border-radius: 50px;
    font-size: 13px;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(36px, 4vw, 48px);
    font-weight: 800;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    background: var(--gradient-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.about-lead {
    font-size: 20px;
    color: var(--color-text-primary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-text {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 32px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.highlight-item:hover {
    border-color: var(--color-accent-primary);
    transform: translateX(8px);
}

.highlight-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.highlight-icon i {
    font-size: 20px;
    color: var(--color-bg-primary);
}

.highlight-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.highlight-content p {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(246, 130, 31, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.about-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    position: relative;
    z-index: 1;
}

.about-stat {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
}

.about-stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--color-accent-primary);
    margin-bottom: 4px;
}

.about-stat-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience-section {
    background: var(--color-bg-primary);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 32px;
}

.timeline-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: var(--color-bg-tertiary);
    border: 3px solid var(--color-border);
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.marker-dot.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 20px rgba(246, 130, 31, 0.5);
}

.marker-line {
    width: 2px;
    flex: 1;
    background: var(--color-border);
    min-height: 40px;
}

.timeline-content {
    flex: 1;
    padding-bottom: 48px;
}

.timeline-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: all var(--transition-normal);
}

.timeline-card:hover {
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.job-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.company-name {
    color: var(--color-accent-primary);
    font-weight: 500;
    margin-bottom: 2px;
}

.company-partner {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-secondary);
    font-size: 13px;
    margin-top: 6px;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(0, 81, 255, 0.08) 0%, rgba(124, 58, 237, 0.08) 100%);
    border: 1px solid rgba(0, 81, 255, 0.15);
    border-radius: 6px;
}

.company-partner i {
    font-size: 12px;
    color: var(--color-accent-blue);
}

.company-link {
    color: var(--color-accent-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    position: relative;
    transition: all var(--transition-normal);
}

.company-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.company-link:hover {
    color: var(--color-accent-secondary);
}

.company-link:hover::after {
    width: 100%;
}

.company-link i {
    font-size: 10px;
    opacity: 0.6;
    transition: all var(--transition-normal);
}

.company-link:hover i {
    opacity: 1;
    transform: translate(2px, -2px);
}

.company-location {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
    border-left: 2px solid var(--color-accent-primary);
}

.company-location i {
    font-size: 11px;
    color: var(--color-accent-primary);
}

.job-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.job-date {
    color: var(--color-text-tertiary);
    font-size: 14px;
}

.job-type {
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50px;
    font-size: 12px;
    color: var(--color-text-secondary);
}

.job-type.current {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.job-responsibilities {
    list-style: none;
    margin-bottom: 20px;
}

.job-responsibilities li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.job-responsibilities li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--color-accent-primary);
    border-radius: 50%;
}

.job-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tool-tag {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 12px;
    color: var(--color-text-secondary);
}

.verify-certificate {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 18px;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.05));
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #22c55e;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.verify-certificate:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.25), rgba(34, 197, 94, 0.1));
    border-color: rgba(34, 197, 94, 0.5);
    transform: translateY(-2px);
}

.verify-certificate i {
    font-size: 14px;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects-section {
    background: var(--gradient-dark);
}

.featured-project {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.project-visual {
    position: relative;
}

.project-image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.project-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle at center, rgba(246, 130, 31, 0.2) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.project-mockup {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 60px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solar-tracker-visual {
    position: relative;
    width: 200px;
    height: 200px;
}

.sun-icon {
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 48px;
    color: var(--color-accent-secondary);
    animation: sun-pulse 3s ease-in-out infinite;
}

@keyframes sun-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.panel-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solar-panel {
    width: 120px;
    height: 80px;
    background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 50%, #1e3a5f 100%);
    border: 4px solid #4a90c2;
    border-radius: 8px;
    position: relative;
    transform: rotate(-15deg);
    animation: panel-track 5s ease-in-out infinite;
}

.solar-panel::before,
.solar-panel::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
}

.solar-panel::before {
    top: 10%;
    left: 10%;
    right: 10%;
    height: 2px;
}

.solar-panel::after {
    top: 10%;
    left: 50%;
    width: 2px;
    height: 80%;
    transform: translateX(-50%);
}

@keyframes panel-track {
    0%, 100% { transform: rotate(-15deg); }
    50% { transform: rotate(15deg); }
}

.tracker-arm {
    width: 8px;
    height: 60px;
    background: linear-gradient(to bottom, #666 0%, #444 100%);
    border-radius: 4px;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.energy-particles span {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    animation: particle-float 2s ease-in-out infinite;
}

.energy-particles span:nth-child(1) { top: 30%; left: 20%; animation-delay: 0s; }
.energy-particles span:nth-child(2) { top: 50%; left: 10%; animation-delay: 0.3s; }
.energy-particles span:nth-child(3) { top: 70%; left: 25%; animation-delay: 0.6s; }
.energy-particles span:nth-child(4) { top: 40%; right: 15%; animation-delay: 0.9s; }
.energy-particles span:nth-child(5) { top: 60%; right: 20%; animation-delay: 1.2s; }

@keyframes particle-float {
    0%, 100% { transform: translateY(0) scale(1); opacity: 1; }
    50% { transform: translateY(-20px) scale(0.8); opacity: 0.5; }
}

.project-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(246, 130, 31, 0.1);
    border: 1px solid rgba(246, 130, 31, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: var(--color-accent-primary);
    margin-bottom: 20px;
}

.project-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 8px;
}

.project-subtitle {
    color: var(--color-text-secondary);
    font-size: 18px;
    margin-bottom: 20px;
}

.project-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.project-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 16px;
    color: var(--color-bg-primary);
}

.feature-text {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.feature-text strong {
    color: var(--color-text-primary);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tech-tag {
    padding: 8px 16px;
    background: rgba(0, 81, 255, 0.1);
    border: 1px solid rgba(0, 81, 255, 0.2);
    border-radius: 6px;
    font-size: 13px;
    color: var(--color-accent-blue);
}

.sdg-section {
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.sdg-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
    margin-bottom: 12px;
}

.sdg-grid {
    display: flex;
    gap: 8px;
}

.sdg-item {
    width: 40px;
    height: 40px;
    background: var(--gradient-secondary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sdg-item:hover {
    transform: scale(1.1);
}

.sdg-number {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.project-cta {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.project-cta .btn {
    gap: 10px;
}

.project-cta .btn i {
    font-size: 14px;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills-section {
    background: var(--color-bg-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.skill-category {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: all var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--color-accent-primary);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.category-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-icon i {
    font-size: 20px;
    color: var(--color-bg-primary);
}

.category-title {
    font-size: 18px;
    font-weight: 600;
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-name {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.skill-bar {
    height: 6px;
    background: var(--color-bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    width: 0;
    transition: width 1s ease-out;
}

/* ============================================
   CERTIFICATIONS SECTION
   ============================================ */
.certifications-section {
    background: var(--gradient-dark);
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cert-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: all var(--transition-normal);
}

.cert-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.cert-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.cert-icon i {
    font-size: 24px;
    color: var(--color-bg-primary);
}

.cert-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.cert-issuer {
    color: var(--color-accent-primary);
    font-size: 14px;
    margin-bottom: 12px;
}

.cert-description {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.cert-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.cert-date {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50px;
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.cert-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: transparent;
    border: 1px solid var(--color-accent-primary);
    border-radius: 8px;
    color: var(--color-accent-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.cert-link:hover {
    background: var(--gradient-primary);
    color: var(--color-bg-primary);
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(246, 130, 31, 0.3);
}

.cert-link i {
    font-size: 12px;
    transition: transform var(--transition-fast);
}

.cert-link:hover i {
    transform: translateX(2px);
}

/* ============================================
   EDUCATION SECTION
   ============================================ */
.education-section {
    background: var(--color-bg-primary);
}

.education-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 24px;
}

.edu-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    position: relative;
    transition: all var(--transition-normal);
}

.edu-card:hover {
    border-color: var(--color-accent-primary);
}

.edu-card.featured {
    border-color: var(--color-accent-primary);
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.05) 0%, transparent 50%);
}

.edu-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-bg-primary);
}

.edu-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.edu-icon i {
    font-size: 20px;
    color: var(--color-bg-primary);
}

.edu-degree {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.edu-school {
    color: var(--color-accent-primary);
    font-size: 14px;
    margin-bottom: 4px;
}

.edu-affiliation {
    color: var(--color-text-tertiary);
    font-size: 12px;
    margin-bottom: 20px;
}

.edu-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.edu-detail {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 12px;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-value {
    font-size: 16px;
    font-weight: 600;
}

.detail-value.highlight {
    color: var(--color-accent-primary);
}

.edu-courses {
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.courses-label {
    font-size: 12px;
    color: var(--color-text-tertiary);
    margin-bottom: 12px;
}

.courses-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.courses-list span {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font-size: 12px;
    color: var(--color-text-secondary);
}

.edu-verification {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    background: var(--gradient-dark);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-content .section-header {
    text-align: left;
    margin-bottom: 24px;
}

.contact-description {
    color: var(--color-text-secondary);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.contact-item:hover {
    border-color: var(--color-accent-primary);
    transform: translateX(8px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 18px;
    color: var(--color-bg-primary);
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 12px;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-value {
    font-size: 16px;
    color: var(--color-text-primary);
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 48px;
    height: 48px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    transform: translateY(-4px);
}

.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(246, 130, 31, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-tertiary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.footer-tagline {
    color: var(--color-text-tertiary);
    font-size: 14px;
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-tertiary);
    font-size: 13px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes slideUp {
    to { opacity: 1; transform: translateY(0); }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --section-padding: 64px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 40px;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .profile-card {
        max-width: 350px;
    }

    .about-grid,
    .featured-project,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr 1fr;
    }

    .certs-grid {
        grid-template-columns: 1fr 1fr;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .project-visual {
        order: -1;
    }

    .project-mockup {
        padding: 40px;
    }

    .contact-content .section-header {
        text-align: center;
    }

    /* Tablet: Show marquee instead of grid */
    .clients-desktop {
        display: none !important;
    }

    .clients-marquee {
        display: flex !important;
        overflow: hidden;
        width: 100%;
        padding: 15px 0;
    }

    .marquee-content {
        display: flex;
        align-items: center;
        gap: 20px;
        padding-right: 20px;
        animation: marqueeScroll 12s linear infinite;
        flex-shrink: 0;
    }

    .marquee-content .client-name {
        font-size: 16px;
        font-weight: 600;
        white-space: nowrap;
        color: rgba(255, 255, 255, 0.6);
    }

    .marquee-separator {
        color: rgba(255, 255, 255, 0.3);
        font-size: 10px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 48px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-secondary);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 20px;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-actions .nav-cta-btn {
        display: none;
    }

    .nav-actions {
        gap: 12px;
    }

    .theme-toggle {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
        justify-content: center;
    }

    .hero-scroll {
        display: none;
    }

    /* Mobile: Seamless marquee */
    .clients-desktop {
        display: none !important;
    }

    .clients-marquee {
        display: flex !important;
        overflow: hidden;
        width: 100%;
        padding: 12px 0;
    }

    .marquee-content {
        display: flex;
        align-items: center;
        gap: 16px;
        padding-right: 16px;
        animation: marqueeScroll 10s linear infinite;
        flex-shrink: 0;
    }

    .marquee-content .client-name {
        font-size: 15px;
        font-weight: 600;
        white-space: nowrap;
        color: rgba(255, 255, 255, 0.6);
    }

    .marquee-separator {
        color: rgba(255, 255, 255, 0.3);
        font-size: 8px;
    }

    .timeline-item {
        flex-direction: column;
        gap: 16px;
    }

    .timeline-marker {
        flex-direction: row;
    }

    .marker-line {
        width: 100%;
        height: 2px;
        min-height: auto;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .job-meta {
        width: 100%;
        justify-content: flex-start;
    }

    .company-partner {
        flex-wrap: wrap;
        font-size: 12px;
    }

    .company-location {
        font-size: 12px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .certs-grid {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        gap: 16px;
    }

    .highlight-item {
        padding: 16px;
    }

    .project-title {
        font-size: 24px;
    }

    .project-cta {
        flex-direction: column;
    }

    .project-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .sdg-grid {
        flex-wrap: wrap;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .social-links {
        justify-content: center;
    }

    .contact-info {
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 6px 12px;
        margin-bottom: 24px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .profile-card {
        padding: 24px;
    }

    .profile-image-wrapper {
        width: 140px;
        height: 140px;
    }

    .profile-info h3 {
        font-size: 20px;
    }

    .stat-number {
        font-size: 24px;
    }

    .stat-label {
        font-size: 11px;
    }

    .clients-section {
        padding: 40px 0;
    }

    .clients-label {
        font-size: 11px;
        margin-bottom: 24px;
    }

    .about-lead {
        font-size: 16px;
    }

    .about-card {
        padding: 24px;
    }

    .about-stats-grid {
        gap: 16px;
    }

    .about-stat-number {
        font-size: 28px;
    }

    .highlight-item {
        flex-direction: column;
        text-align: center;
    }

    .timeline-card,
    .skill-category,
    .cert-card,
    .edu-card,
    .contact-form-wrapper {
        padding: 20px;
    }

    .job-title {
        font-size: 18px;
    }

    .company-link {
        font-size: 14px;
    }

    .company-partner {
        padding: 5px 10px;
        font-size: 11px;
    }

    .company-location {
        padding: 3px 8px;
        font-size: 11px;
    }

    .job-responsibilities li {
        font-size: 13px;
    }

    .tool-tag {
        font-size: 11px;
        padding: 4px 10px;
    }

    .project-mockup {
        padding: 30px;
    }

    .project-badge {
        font-size: 12px;
    }

    .project-title {
        font-size: 22px;
    }

    .project-subtitle {
        font-size: 15px;
    }

    .project-description {
        font-size: 14px;
    }

    .tech-tag {
        font-size: 11px;
        padding: 6px 12px;
    }

    .category-title {
        font-size: 16px;
    }

    .skill-name {
        font-size: 13px;
    }

    .cert-title {
        font-size: 16px;
    }

    .cert-description {
        font-size: 13px;
    }

    .cert-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .edu-degree {
        font-size: 16px;
    }

    .edu-details {
        gap: 12px;
    }

    .detail-value {
        font-size: 14px;
    }

    .courses-list span {
        font-size: 11px;
        padding: 4px 10px;
    }

    .contact-description {
        font-size: 14px;
    }

    .contact-item {
        padding: 16px;
    }

    .contact-icon {
        width: 40px;
        height: 40px;
    }

    .contact-value {
        font-size: 14px;
    }

    .social-link {
        width: 42px;
        height: 42px;
    }

    .form-group label {
        font-size: 13px;
    }

    .form-group input,
    .form-group textarea {
        padding: 12px 14px;
        font-size: 14px;
    }

    .footer {
        padding: 40px 0 24px;
    }

    .footer-links {
        gap: 12px;
    }

    .footer-links a {
        font-size: 13px;
    }
}

/* ============================================
   RESUME/CV DOWNLOAD SECTION
   ============================================ */

.resume-section {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
    position: relative;
}

.resume-section .section-description {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 16px auto 0;
    text-align: center;
}

.resume-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.resume-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    position: relative;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.resume-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.resume-card.featured {
    border-color: var(--color-accent-primary);
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.05) 0%, rgba(251, 173, 65, 0.02) 100%);
}

.resume-card.featured:hover {
    border-color: var(--color-accent-secondary);
    box-shadow: 0 10px 40px rgba(246, 130, 31, 0.2);
}

.resume-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--gradient-primary);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.resume-badge i {
    font-size: 10px;
}

.resume-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.1) 0%, rgba(251, 173, 65, 0.05) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.resume-icon i {
    font-size: 28px;
    color: var(--color-accent-primary);
}

.resume-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.resume-subtitle {
    font-size: 0.9rem;
    color: var(--color-accent-primary);
    font-weight: 500;
    margin-bottom: 12px;
}

.resume-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}

.resume-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.resume-tag {
    background: rgba(246, 130, 31, 0.1);
    color: var(--color-accent-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.resume-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.resume-features .feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.resume-features .feature i {
    color: #22c55e;
    font-size: 14px;
}

.resume-card .btn-full {
    width: 100%;
    justify-content: center;
    margin-top: auto;
}

.resume-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 32px;
    padding: 20px 24px;
    background: rgba(246, 130, 31, 0.05);
    border: 1px solid rgba(246, 130, 31, 0.2);
    border-radius: 12px;
}

.resume-note i {
    color: var(--color-accent-primary);
    font-size: 18px;
    margin-top: 2px;
}

.resume-note p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Resume Section Responsive */
@media (max-width: 992px) {
    .resume-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .resume-card.featured {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .resume-grid {
        grid-template-columns: 1fr;
    }

    .resume-card.featured {
        grid-column: span 1;
    }

    .resume-card {
        padding: 24px;
    }

    .resume-section .section-description {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .resume-icon {
        width: 56px;
        height: 56px;
    }

    .resume-icon i {
        font-size: 24px;
    }

    .resume-title {
        font-size: 1.2rem;
    }

    .resume-tags {
        gap: 6px;
    }

    .resume-tag {
        font-size: 11px;
        padding: 3px 10px;
    }
}

/* ============================================
   SEMESTER PROJECTS SECTION
   ============================================ */
.semester-projects-section {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
}

.semester-projects-section .section-description {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 16px auto 0;
    text-align: center;
}

.semester-projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.semester-project-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 28px;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.semester-project-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(246, 130, 31, 0.15);
}

.project-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.1) 0%, rgba(251, 173, 65, 0.05) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-primary);
    font-size: 24px;
}

.project-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-card-course {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.project-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    line-height: 1.3;
}

.project-card-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 16px;
}

.project-card-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.project-card-tech span {
    padding: 5px 12px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 11px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

@media (max-width: 1024px) {
    .semester-projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .semester-projects-grid {
        grid-template-columns: 1fr;
    }

    .semester-projects-section .section-description {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .semester-project-card {
        padding: 20px;
    }

    .project-card-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }

    .project-card-title {
        font-size: 1.05rem;
    }

    .project-card-desc {
        font-size: 13px;
    }

    .project-card-tech span {
        font-size: 10px;
        padding: 4px 10px;
    }
}

/* ============================================
   LANGUAGE SKILLS SECTION
   ============================================ */
.languages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.language-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    position: relative;
    transition: all var(--transition-normal);
}

.language-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.language-card.featured {
    border-color: var(--color-accent-primary);
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.05) 0%, rgba(251, 173, 65, 0.02) 100%);
}

.language-card.featured:hover {
    box-shadow: 0 10px 40px rgba(246, 130, 31, 0.2);
}

.language-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--gradient-primary);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.language-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.language-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.1) 0%, rgba(251, 173, 65, 0.05) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-primary);
    font-size: 24px;
}

.language-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.language-level {
    font-size: 14px;
    color: var(--color-accent-primary);
    font-weight: 600;
}

.language-level.native {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.language-skills {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lang-skill {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.lang-skill-name {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.lang-skill-dots {
    display: flex;
    gap: 6px;
}

.lang-skill-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
}

.lang-skill-dots .dot.filled {
    background: var(--gradient-primary);
    border-color: var(--color-accent-primary);
}

.ielts-score {
    margin-bottom: 20px;
}

.ielts-overall {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, rgba(246, 130, 31, 0.1) 0%, rgba(251, 173, 65, 0.05) 100%);
    border-radius: 12px;
    margin-bottom: 20px;
}

.ielts-band {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.ielts-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ielts-breakdown {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.ielts-skill {
    text-align: center;
    padding: 12px 8px;
    background: var(--color-bg-tertiary);
    border-radius: 10px;
    border: 1px solid var(--color-border);
}

.ielts-skill-score {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.ielts-skill-name {
    font-size: 11px;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ielts-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.ielts-date {
    font-size: 13px;
    color: var(--color-text-tertiary);
    display: flex;
    align-items: center;
    gap: 6px;
}

@media (max-width: 768px) {
    .languages-grid {
        grid-template-columns: 1fr;
    }

    .ielts-breakdown {
        grid-template-columns: repeat(2, 1fr);
    }

    .ielts-band {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .language-card {
        padding: 24px;
    }

    .language-header {
        gap: 12px;
    }

    .language-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }

    .language-name {
        font-size: 1.2rem;
    }

    .ielts-skill {
        padding: 10px 6px;
    }

    .ielts-skill-score {
        font-size: 1.1rem;
    }

    .ielts-footer {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    color: var(--color-bg-primary);
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.back-to-top:active {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
}