/* ===== VARIABLES ===== */
:root {
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-card: #ffffff;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #0ea5e9;
    --success: #10b981;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
    --shadow: 0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px 0 rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --transition: all 0.2s ease;
}

[data-theme="dark"] {
    --bg: #0f172a;
    --bg-alt: #1e293b;
    --bg-card: #1e293b;
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border: #334155;
    --border-light: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.2);
    --shadow: 0 1px 3px 0 rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.6);
}

/* ===== RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== LOADER ===== */
.loader {
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.loader-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text);
}

.loader-bar {
    width: 180px;
    height: 2px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto 0.75rem;
}

.loader-progress {
    height: 100%;
    width: 0;
    background: var(--primary);
    border-radius: 2px;
    animation: loading 1.2s ease forwards;
}

@keyframes loading {
    0% { width: 0; }
    100% { width: 100%; }
}

.loader-text {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== CUSTOM CURSOR ===== */
.cursor-dot, .cursor-outline {
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    display: none;
}

@media (min-width: 992px) {
    .cursor-dot, .cursor-outline { display: block; }
    body { cursor: none; }
    a, button, input, textarea { cursor: none; }
}

.cursor-dot {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.05s ease;
}

.cursor-outline {
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.15s ease, width 0.2s ease, height 0.2s ease, background 0.2s ease;
}

.cursor-outline.hover {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.08);
}

/* ===== SCROLL PROGRESS ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: var(--primary);
    z-index: 9999;
    transition: width 0.1s ease;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(15, 23, 42, 0.9);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-logo {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--text);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle, .nav-toggle {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover, .nav-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.nav-toggle { display: none; }

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    position: relative;
    background: var(--bg);
}

.hero .container {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--success);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: dotPulse 2s infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    color: var(--text);
}

.hero-title .highlight {
    color: var(--primary);
}

.hero-typewriter {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.typewriter {
    color: var(--primary);
    font-weight: 600;
}

.cursor-blink {
    color: var(--primary);
    animation: blink 1s infinite;
    font-weight: 300;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-desc {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 540px;
    font-size: 1rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    border-color: var(--text);
    background: var(--bg-alt);
    color: var(--text);
}

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

.hero-stats {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.stat { text-align: left; }

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-socials {
    display: flex;
    gap: 0.5rem;
}

.hero-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 1.05rem;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.hero-socials a:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text);
    color: var(--bg);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

[data-tooltip]:hover::before {
    opacity: 1;
}

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

.code-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
}

.code-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 0.9rem;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
}

.dot-red, .dot-yellow, .dot-green {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.code-title {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.code-content {
    padding: 1.25rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.7;
    overflow-x: auto;
    color: var(--text-secondary);
}

.code-content code { color: var(--text-secondary); }
.c-purple { color: #a855f7; }
.c-blue { color: #3b82f6; }
.c-yellow { color: #eab308; }
.c-red { color: #ef4444; }
.c-green { color: #22c55e; }

.scroll-down {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 1.25rem;
    animation: bounce 2s infinite;
    text-decoration: none;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

/* ===== SECTIONS ===== */
.section {
    padding: 6rem 0;
    border-bottom: 1px solid var(--border-light);
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.section-label {
    display: inline-block;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.8;
    font-size: 0.98rem;
}

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

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.highlight-item i {
    color: var(--success);
    font-size: 1rem;
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.info-item {
    display: flex;
    gap: 0.85rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.info-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.info-item i {
    font-size: 1.15rem;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.info-item strong {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-item span {
    font-size: 0.88rem;
    color: var(--text);
    font-weight: 500;
}

/* ===== SKILLS ===== */
.skills-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.6rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: inherit;
}

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

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

.tab-content { display: none; }
.tab-content.active { display: block; }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
    max-width: 850px;
    margin: 0 auto;
}

.skill-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: var(--transition);
}

.skill-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.skill-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.85rem;
}

.skill-info i {
    font-size: 1.2rem;
    color: var(--primary);
}

.skill-info span:first-of-type {
    font-weight: 600;
    color: var(--text);
    font-size: 0.9rem;
}

.skill-percent {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.skill-bar {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    width: 0;
    background: var(--primary);
    border-radius: 2px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== PROJECTS ===== */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.1rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

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

.filter-btn.active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.project-card.featured {
    grid-column: 1 / -1;
    border-color: rgba(37, 99, 235, 0.3);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02), rgba(14, 165, 233, 0.02));
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
}

.project-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
}

.project-links { display: flex; gap: 0.5rem; }

.project-links a {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.project-links a:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.project-badge {
    position: absolute;
    top: 1.75rem;
    right: 1.75rem;
    padding: 0.25rem 0.75rem;
    background: var(--primary);
    color: white;
    border-radius: 20px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.65rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.1rem;
    line-height: 1.7;
}

.project-features {
    list-style: none;
    margin-bottom: 1.25rem;
}

.project-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.project-features li i {
    color: var(--success);
    font-size: 0.85rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: auto;
    padding-top: 1rem;
}

.project-tags span {
    padding: 0.25rem 0.65rem;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== EXPERIENCE ===== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 0.4rem;
    width: 14px;
    height: 14px;
    background: var(--bg);
    border: 2px solid var(--primary);
    border-radius: 50%;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
}

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

.timeline-date {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
}

.timeline-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.timeline-role {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
    position: relative;
}

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

.testimonial-quote {
    font-size: 2rem;
    color: var(--primary);
    opacity: 0.15;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.testimonial-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.author-avatar, .avatar {
    width: 42px;
    height: 42px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.testimonial-author strong {
    display: block;
    font-size: 0.88rem;
    color: var(--text);
    font-weight: 600;
}

.testimonial-author span {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ===== CONTACT ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    max-width: 950px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--primary);
}

.contact-icon {
    width: 42px;
    height: 42px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.05rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-item a, .contact-item span {
    font-size: 0.88rem;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    word-break: break-word;
    font-weight: 500;
}

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

.contact-socials {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.contact-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 1.05rem;
    text-decoration: none;
    transition: var(--transition);
}

.contact-socials a:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== FOOTER ===== */
.footer {
    padding: 3rem 0 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    background: var(--bg-alt);
}

.footer-brand {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.footer-socials a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

/* ===== TOAST ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.9rem 1.25rem;
    box-shadow: var(--shadow-xl);
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0;
    transition: var(--transition);
    max-width: 90%;
    font-size: 0.88rem;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.toast-success { border-left: 3px solid var(--success); }
.toast.toast-error { border-left: 3px solid #ef4444; }
.toast i { font-size: 1.15rem; }
.toast.toast-success i { color: var(--success); }
.toast.toast-error i { color: #ef4444; }

/* ===== REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hero-title { font-size: 2.4rem; }
    .hero-visual { max-width: 420px; margin: 0 auto; }
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: fixed;
        top: 60px;
        right: 0;
        width: 75%;
        max-width: 300px;
        background: var(--bg-card);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0.25rem;
        border-left: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-xl);
    }
    .nav-links.active { display: flex; }
    .nav-link {
        width: 100%;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border-light);
    }
    .nav-link.active::after { display: none; }
    .nav-link.active {
        color: var(--primary);
    }
    .hero { padding: 7rem 0 3rem; }
    .hero-title { font-size: 2rem; }
    .section { padding: 4rem 0; }
    .section-title { font-size: 1.75rem; }
    .project-card.featured { grid-column: auto; }
    .timeline { padding-left: 1.5rem; }
    .timeline-item { padding-left: 1.5rem; }
    .timeline-dot { left: -1.5rem; }
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .container { padding: 0 1rem; }
    .hero-title { font-size: 1.65rem; }
    .hero-buttons { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .hero-stats { gap: 1.5rem; }
    .stat-number { font-size: 1.4rem; }
    .code-content { font-size: 0.72rem; padding: 1rem; }
    .about-highlights { grid-template-columns: 1fr; }
    .skills-tabs { flex-direction: column; }
    .tab-btn { width: 100%; justify-content: center; }
    .contact-form { padding: 1.25rem; }
    .testimonial-card { padding: 1.5rem; }
    .projects-grid { grid-template-columns: 1fr; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }