/* ===== MODERN ROOT VARIABLES ===== */
:root {
    /* Modern Color Palette */
    --primary-color: #0F172A;
    --primary-light: #1E293B;
    --accent-color: #3B82F6;
    --accent-light: #60A5FA;
    --accent-dark: #2563EB;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-alt: #F1F5F9;
    --border-color: #E2E8F0;
    --success: #10B981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.10);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Sora', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

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

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 4rem;
    font-weight: 400;
}

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

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

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

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: 'Sora', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
    transition: var(--transition);
}

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

.nav-link.active {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 6rem;
    background: linear-gradient(135deg, #F8FAFC 0%, #FFFFFF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 70%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    min-height: 2.5rem;
    font-weight: 600;
    font-family: 'Sora', sans-serif;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 3rem;
}

.social-links a {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 1.125rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.social-links a:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-4px);
    border-color: var(--accent-color);
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--text-light);
    font-size: 1.5rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* ===== ABOUT SECTION ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
}

.about-text h3 {
    font-size: 1.875rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.0625rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat h4 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-weight: 800;
    font-family: 'Sora', sans-serif;
}

.stat p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.skill-category {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.skill-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.skill-category h3 {
    font-size: 1.25rem;
    margin: 0;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: var(--transition);
    border: 1px solid transparent;
    font-weight: 500;
}

.skill-tag:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.skill-tag i {
    font-size: 0.75rem;
    color: var(--accent-color);
}

.skill-tag:hover i {
    color: white;
}

/* ===== PHOTOGRAPHY SECTION ===== */
.photography-filter {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.5rem;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
    color: var(--text-secondary);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.photography-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.photo-card {
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.photo-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.photo-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.photo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.photo-card:hover .photo-image img {
    transform: scale(1.05);
}

.photo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(15, 23, 42, 0.8));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    opacity: 0;
    transition: var(--transition);
    padding: 2rem;
}

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

.photo-info {
    text-align: center;
    color: white;
}

.photo-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.photo-info p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.photo-expand {
    width: 48px;
    height: 48px;
    background: white;
    border: none;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.125rem;
    cursor: pointer;
    transition: var(--transition);
}

.photo-expand:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.3);
}

.photo-details {
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.photo-category {
    padding: 0.375rem 0.875rem;
    background: var(--accent-color);
    color: white;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.photo-meta {
    display: flex;
    gap: 1.25rem;
    color: var(--text-light);
    font-size: 0.8125rem;
}

.photo-meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.photo-meta i {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== LIGHTBOX ===== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    position: relative;
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: fixed;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    transition: var(--transition);
    z-index: 10001;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.lightbox-close {
    top: 2rem;
    right: 2rem;
}

.lightbox-prev {
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-prev:hover {
    transform: translateY(-50%) scale(1.05);
}

.lightbox-next {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next:hover {
    transform: translateY(-50%) scale(1.05);
}

/* ===== TIMELINE (CAREER) ===== */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 3.5rem;
}

.timeline-marker {
    position: absolute;
    left: 22px;
    top: 0;
    width: 18px;
    height: 18px;
    background: white;
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    z-index: 1;
}

.timeline-content {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
    border-color: var(--accent-light);
}

.timeline-date {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--accent-color);
    color: white;
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 700;
}

.timeline-content h4 {
    color: var(--accent-color);
    margin-bottom: 1.25rem;
    font-weight: 600;
    font-size: 1.0625rem;
}

.timeline-content p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.timeline-content ul {
    list-style: none;
    padding-left: 0;
}

.timeline-content ul li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline-content ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ===== TESTIMONIALS ===== */
.testimonials-slider {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.testimonial-card {
    background: var(--bg-primary);
    padding: 3.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    display: none;
    border: 1px solid var(--border-color);
}

.testimonial-card.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quote-icon {
    font-size: 3rem;
    color: var(--accent-color);
    opacity: 0.15;
    margin-bottom: 1.5rem;
}

.testimonial-content p {
    font-size: 1.25rem;
    line-height: 1.9;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 2.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.testimonial-author img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.testimonial-author h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-weight: 700;
    font-size: 1.0625rem;
}

.testimonial-author p {
    color: var(--text-light);
    font-size: 0.9375rem;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active,
.dot:hover {
    background: var(--accent-color);
    transform: scale(1.3);
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    font-weight: 700;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.contact-details {
    margin-bottom: 2.5rem;
}

.contact-item {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.contact-item i {
    width: 48px;
    height: 48px;
    background: var(--accent-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.375rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.0625rem;
}

.contact-item p,
.contact-item a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

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

.contact-social {
    display: flex;
    gap: 0.75rem;
}

.contact-social a {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.contact-social a:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-4px);
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.contact-form {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-family: inherit;
    font-size: 0.9375rem;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group label {
    position: absolute;
    left: 1.25rem;
    top: 1rem;
    color: var(--text-light);
    transition: var(--transition);
    pointer-events: none;
    background: var(--bg-primary);
    padding: 0 0.375rem;
    font-size: 0.9375rem;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -0.625rem;
    left: 0.875rem;
    font-size: 0.8125rem;
    color: var(--accent-color);
    font-weight: 500;
}

.form-group input:not(:placeholder-shown),
.form-group textarea:not(:placeholder-shown) {
    border-color: var(--accent-color);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    opacity: 0;
}

.contact-form button {
    width: 100%;
    justify-content: center;
}

.form-message {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    display: none;
    font-size: 0.9375rem;
}

.form-message.success {
    background: #DCFCE7;
    color: #166534;
    border: 1px solid #BBF7D0;
    display: block;
}

.form-message.error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FECACA;
    display: block;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary-color);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.25rem;
    color: white;
    font-weight: 700;
}

.footer-section p {
    line-height: 1.8;
    font-size: 0.9375rem;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    transition: var(--transition);
    font-size: 0.9375rem;
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.9375rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.footer-bottom i {
    color: var(--accent-light);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    background: var(--accent-dark);
}

.back-to-top.visible {
    display: flex;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .section {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 2.25rem;
    }

    .hero {
        padding: 6rem 1.5rem 4rem;
    }

    .hero-title {
        font-size: 2.75rem;
    }

    .hero-subtitle {
        font-size: 1.375rem;
    }

    .hero-description {
        font-size: 1.0625rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .about-image img {
        margin: 0 auto;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 2rem 0;
    }

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

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px;
    }

    .timeline-marker {
        left: 14px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }

    .lightbox-prev {
        left: 1rem;
    }

    .lightbox-next {
        right: 1rem;
    }
}

/* Tablet specific styles */
@media (min-width: 769px) and (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* Large desktop */
@media (min-width: 1440px) {
    .section {
        padding: 7rem 0;
    }

    .hero-title {
        font-size: 5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }

    .hero {
        padding: 5rem 1.25rem 3rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .testimonial-card {
        padding: 2rem 1.5rem;
    }

    .contact-form {
        padding: 2rem 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== ACCESSIBILITY ===== */
:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
    border-radius: 4px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ===== SELECTION ===== */
::selection {
    background: var(--accent-color);
    color: white;
}

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

/* ===== SCROLLBAR (Webkit browsers) ===== */
::-webkit-scrollbar {
    width: 10px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* ===== PAGE HERO SECTIONS ===== */
.page-hero {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(59, 130, 246, 0.05));
    padding: 8rem 0 4rem;
    margin-top: 80px;
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .page-hero {
        padding: 6rem 0 3rem;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .page-subtitle {
        font-size: 1.1rem;
    }
}