/* ==================== */
/* CSS VARIABLES */
/* ==================== */
:root {
    /* Light Mode Colors (Marble Theme with Blue) */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f3f4;
    --bg-card: rgba(255, 255, 255, 0.95);
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #6b7280;
    
    /* Blue color scheme */
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --secondary: #8b5cf6;
    --accent: #f59e0b;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-color: rgba(0, 0, 0, 0.06);
    
    --gradient-1: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-2: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
    --gradient-text: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px var(--shadow-color);
    --shadow-md: 0 4px 20px var(--shadow-color);
    --shadow-lg: 0 10px 40px var(--shadow-color);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.25);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

/* ==================== */
/* RESET & BASE */
/* ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(ellipse at 20% 80%, rgba(59, 130, 246, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.03) 0%, transparent 50%),
        linear-gradient(180deg, #f8f9fa 0%, #f1f3f4 100%);
    background-attachment: fixed;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--primary);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* No Wrap Utility */
.no-wrap {
    white-space: nowrap;
}

/* ==================== */
/* CONTAINER */
/* ==================== */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

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

.navbar.scrolled {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    padding: 15px 0;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    transition: var(--transition-normal);
}

.nav-logo:hover {
    transform: scale(1.05);
    color: var(--text-primary);
}

.logo-bracket {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
    transition: var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width var(--transition-normal);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--primary);
}

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

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--gradient-1);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    color: white;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-normal);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 900px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        transition: right var(--transition-normal);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.3rem;
    }
}

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

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.hero-bg-pattern::before {
    content: '';
    position: absolute;
    top: 10%;
    right: 5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 6s ease-in-out infinite;
}

.hero-bg-pattern::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 25px;
    font-weight: 500;
}

.badge-dot {
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 15px;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
    min-height: 2rem;
}

.typewriter {
    border-right: 3px solid var(--primary);
    padding-right: 5px;
    animation: blink-caret 0.75s step-end infinite;
}

@keyframes blink-caret {
    50% { border-color: transparent; }
}

.hero-description {
    font-size: 1.02rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    line-height: 1.8;
}

.hero-description strong {
    color: var(--primary);
}

.hero-stats {
    display: flex;
    gap: 45px;
    margin-bottom: 32px;
}

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

.stat-number {
    display: block;
    font-size: 2.3rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 26px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
    color: white;
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(59, 130, 246, 0.05);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.hero-socials {
    display: flex;
    gap: 14px;
}

.social-link {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1.15rem;
    color: var(--text-secondary);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--primary);
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-lg);
}

.image-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 330px;
    height: 330px;
    border: 2px dashed var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: rotate 25s linear infinite;
}

.image-ring.ring-2 {
    width: 365px;
    height: 365px;
    animation-direction: reverse;
    animation-duration: 30s;
    border-color: var(--secondary);
}

@keyframes rotate {
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.floating-badge {
    position: absolute;
    width: 48px;
    height: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    z-index: 3;
    animation: float 4s ease-in-out infinite;
    box-shadow: var(--shadow-md);
}

.floating-badge i {
    color: var(--primary);
}

.badge-1 { top: 5%; left: 5%; animation-delay: 0s; }
.badge-2 { top: 5%; right: 5%; animation-delay: 1s; }
.badge-3 { bottom: 5%; left: 5%; animation-delay: 2s; }
.badge-4 { bottom: 5%; right: 5%; animation-delay: 3s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 500;
}

.mouse {
    width: 22px;
    height: 36px;
    border: 2px solid var(--text-muted);
    border-radius: 11px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 7px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 7px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 7px; }
    100% { opacity: 0; top: 18px; }
}

/* Responsive Hero */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 35px;
    }
    
    .hero-content { order: 2; }
    .hero-image { order: 1; }
    
    .hero-title { font-size: clamp(1.6rem, 5vw, 2.2rem); }
    .hero-subtitle { font-size: 1.15rem; }
    .hero-description { margin: 0 auto 28px; }
    .hero-stats { justify-content: center; }
    .hero-buttons { justify-content: center; }
    .hero-socials { justify-content: center; }
    
    .image-container { width: 240px; height: 240px; }
    .image-ring { width: 270px; height: 270px; }
    .image-ring.ring-2 { width: 305px; height: 305px; }
    .floating-badge { width: 40px; height: 40px; font-size: 1rem; }
}

@media (max-width: 576px) {
    .hero-title { font-size: 1.5rem; }
    .hero-stats { gap: 22px; }
    .stat-number { font-size: 1.8rem; }
    .image-container { width: 190px; height: 190px; }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ==================== */
/* SECTION TITLES */
/* ==================== */
.section-title {
    font-size: 1.9rem;
    font-weight: 700;
    margin-bottom: 48px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.title-number {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--primary);
    font-weight: 600;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-color) 0%, transparent 100%);
    max-width: 280px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    text-align: center;
    margin-bottom: 38px;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

/* ==================== */
/* ABOUT SECTION */
/* ==================== */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 55px;
    align-items: start;
}

.about-text p {
    font-size: 0.98rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
    text-align: justify;
    hyphens: none;
}

.about-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.about-text .highlight {
    color: var(--primary);
    font-weight: 600;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 11px;
    margin-top: 22px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.highlight-item i {
    color: var(--primary);
    font-size: 0.95rem;
}

/* Info Card */
.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow-md);
}

.info-header {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}

.info-header i {
    font-size: 1.3rem;
    color: var(--primary);
}

.info-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.info-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 11px 0;
    border-bottom: 1px solid var(--border-color);
    gap: 10px;
}

.info-list li:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-muted);
    font-size: 0.84rem;
    flex-shrink: 0;
}

.info-value {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.84rem;
    text-align: right;
}

.info-languages {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.info-languages h4 {
    font-size: 0.92rem;
    margin-bottom: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Language Grid */
.language-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 9px;
}

.language-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 11px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.flag-img {
    width: 22px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    flex-shrink: 0;
}

@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 18px;
}

.category-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.category-header h3 {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
}

.skills-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 9px;
    flex: 1;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.skill-item:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
}

.skill-item i {
    font-size: 1.05rem;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

@media (max-width: 992px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-list {
        grid-template-columns: 1fr;
    }
    
    .skill-category {
        min-height: auto;
    }
}

/* ==================== */
/* EXPERIENCE SECTION */
/* ==================== */
.timeline {
    position: relative;
    max-width: 880px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-1);
    border-radius: 3px;
}

.timeline-item {
    position: relative;
    padding-left: 42px;
    margin-bottom: 42px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -7px;
    top: 0;
}

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

.marker-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 26px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.timeline-content:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 14px;
}

.company-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.company-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    background: white;
    border-radius: var(--radius-sm);
    padding: 5px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.company-logo-placeholder {
    width: 48px;
    height: 48px;
    background: var(--gradient-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.timeline-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.timeline-date {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    background: var(--bg-tertiary);
    padding: 7px 13px;
    border-radius: var(--radius-xl);
    flex-shrink: 0;
}

.timeline-date i {
    color: var(--primary);
}

.timeline-list {
    margin-bottom: 16px;
}

.timeline-list li {
    display: flex;
    gap: 11px;
    margin-bottom: 9px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
}

.timeline-list li i {
    color: var(--primary);
    margin-top: 4px;
    flex-shrink: 0;
    font-size: 0.75rem;
}

/* Timeline Tech */
.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.tech-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 11px;
    background: rgba(59, 130, 246, 0.08);
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 500;
}

.tech-item i {
    font-size: 0.9rem;
}

@media (max-width: 576px) {
    .timeline::before {
        left: 5px;
    }
    
    .timeline-item {
        padding-left: 30px;
    }
    
    .timeline-marker {
        left: -2px;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .company-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 9px;
    }
}

/* ==================== */
/* PROJECTS SECTION */
/* ==================== */
.projects {
    background: var(--bg-secondary);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 11px;
    margin-bottom: 42px;
    flex-wrap: wrap;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--gradient-1);
    border-color: var(--primary);
    color: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.project-card.hidden {
    display: none;
}

.project-image {
    position: relative;
    height: 170px;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-tertiary);
}

.project-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
}

.project-category-badge {
    position: absolute;
    top: 13px;
    left: 13px;
    padding: 4px 11px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-xl);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--primary);
    z-index: 2;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(59, 130, 246, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 11px 22px;
    background: white;
    border-radius: var(--radius-md);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.88rem;
    transform: translateY(18px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.project-card:hover .project-link-btn {
    transform: translateY(0);
}

.project-link-btn:hover {
    background: var(--bg-primary);
    transform: scale(1.05);
    color: var(--primary);
}

.project-content {
    padding: 20px;
}

.project-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 9px;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 14px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.project-tech span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 9px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-weight: 500;
}

.project-tech span i {
    font-size: 0.82rem;
}

.projects-cta {
    text-align: center;
    margin-top: 42px;
}

@media (max-width: 992px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-btn {
        padding: 9px 15px;
        font-size: 0.8rem;
    }
}

/* ==================== */
/* EDUCATION SECTION */
/* ==================== */
.education-grid {
    display: flex;
    flex-direction: column;
    gap: 26px;
    max-width: 880px;
    margin: 0 auto;
}

.education-card {
    display: flex;
    gap: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 26px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.education-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.education-sidebar {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
    min-width: 125px;
}

.year-badge {
    padding: 3px 9px;
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.year-badge.upcoming {
    background: rgba(139, 92, 246, 0.15);
    color: var(--secondary);
}

.year-badge.current {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary);
}

.education-year {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--primary);
    font-weight: 600;
}

.education-content {
    flex: 1;
}

.education-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 13px;
}

.school-logo {
    width: 52px;
    height: 52px;
    object-fit: contain;
    background: white;
    border-radius: var(--radius-sm);
    padding: 5px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.school-logo-placeholder {
    width: 52px;
    height: 52px;
    background: var(--gradient-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.7rem;
    flex-shrink: 0;
}

.education-content h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.education-school {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.education-type {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 11px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    color: var(--primary);
    margin-bottom: 13px;
    font-weight: 500;
}

.education-details {
    padding-left: 15px;
}

.education-details li {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 6px;
    position: relative;
    line-height: 1.6;
}

.education-details li::before {
    content: '▹';
    position: absolute;
    left: -15px;
    color: var(--primary);
}

@media (max-width: 576px) {
    .education-card {
        flex-direction: column;
        gap: 14px;
    }
    
    .education-sidebar {
        flex-direction: row;
        align-items: center;
        min-width: auto;
    }
    
    .education-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 11px;
    }
}

/* ==================== */
/* CONTACT SECTION */
/* ==================== */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 52px;
    align-items: start;
}

.contact-text h3 {
    font-size: 1.6rem;
    margin-bottom: 16px;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-text p {
    color: var(--text-secondary);
    margin-bottom: 13px;
    line-height: 1.7;
    font-size: 0.96rem;
}

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

.contact-info {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.contact-item:hover {
    border-color: var(--primary);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    color: inherit;
}

.contact-icon {
    width: 46px;
    height: 46px;
    background: var(--gradient-1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: white;
    flex-shrink: 0;
}

.contact-icon.linkedin {
    background: linear-gradient(135deg, #0077b5 0%, #00a0dc 100%);
}

.contact-icon.github {
    background: linear-gradient(135deg, #333 0%, #6e5494 100%);
}

.contact-icon.phone {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.88rem;
}

/* Contact Form */
.contact-form-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 13px 15px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.92rem;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

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

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 14px 26px;
    font-size: 0.95rem;
}

@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ==================== */
/* FOOTER */
/* ==================== */
.footer {
    background: var(--bg-primary);
    padding: 52px 0 26px;
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    font-size: 1.7rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: 20px;
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 13px;
    margin-bottom: 20px;
}

.footer-socials a {
    width: 44px;
    height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition-normal);
}

.footer-socials a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: 7px;
    font-size: 0.88rem;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ==================== */
/* BACK TO TOP */
/* ==================== */
.back-to-top {
    position: fixed;
    bottom: 26px;
    right: 26px;
    width: 46px;
    height: 46px;
    background: var(--gradient-1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.05rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 99;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ==================== */
/* SCROLLBAR */
/* ==================== */
::-webkit-scrollbar {
    width: 9px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

::selection {
    background: var(--primary);
    color: white;
}

/* ==================== */
/* ANIMATIONS */
/* ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-aos] {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Fallback si image non chargée */
.profile-img {
    background: var(--gradient-1);
}

.profile-img[src*="ui-avatars"] {
    border-color: var(--primary-light);
}