/* ============================================
   ADRIAN SANCHEZ PORTFOLIO - CINEMATIC THEME
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0a;
    --color-bg-elevated: #111111;
    --color-bg-card: #161616;
    --color-surface: #1a1a1a;
    --color-border: #2a2a2a;

    --color-text: #ffffff;
    --color-text-muted: #888888;
    --color-text-subtle: #555555;

    --color-accent: #d4a574;
    --color-accent-light: #e8c9a8;
    --color-accent-dark: #b8895a;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --container-max: 1400px;
    --nav-height: 80px;
}

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

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

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

/* Film Grain Overlay */
/* Film Grain Overlay */
.grain-overlay {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    pointer-events: none;
    z-index: 9999;
    /* Inicio más sutil pero visible */
    opacity: 0.035;
    /* Ajuste de frecuencia para hacerlo más sharp/fino */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    animation: grain 8s steps(10) infinite;
    transition: opacity 1s ease;
}

/* Estado minimizado para el resto de la web */
.grain-overlay.minimized {
    opacity: 0.015;
    /* Casi invisible, solo textura sutil */
}

@keyframes grain {

    0%,
    100% {
        transform: translate(0, 0);
    }

    10% {
        transform: translate(-5%, -10%);
    }

    20% {
        transform: translate(-15%, 5%);
    }

    30% {
        transform: translate(7%, -25%);
    }

    40% {
        transform: translate(-5%, 25%);
    }

    50% {
        transform: translate(-15%, 10%);
    }

    60% {
        transform: translate(15%, 0%);
    }

    70% {
        transform: translate(0%, 15%);
    }

    80% {
        transform: translate(3%, 35%);
    }

    90% {
        transform: translate(-10%, 10%);
    }
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: transparent;
    transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    text-decoration: none;
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

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

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

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

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

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    background:
        radial-gradient(ellipse at 50% 0%, rgba(212, 165, 116, 0.08) 0%, transparent 50%),
        var(--color-bg);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, transparent 0%, var(--color-bg) 100%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: clamp(0.75rem, 2vw, 0.875rem);
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 15vw, 10rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.hero-name {
    display: block;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-name:last-child {
    font-style: italic;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-location {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.location-icon {
    color: var(--color-accent);
    font-size: 0.5rem;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text);
    text-decoration: none;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    transition: var(--transition-base);
    background: transparent;
}

.hero-cta:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg);
}

.hero-cta svg {
    transition: transform var(--transition-base);
}

.hero-cta:hover svg {
    transform: translateY(4px);
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scaleY(1);
    }

    50% {
        opacity: 1;
        transform: scaleY(1.2);
    }
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */
.portfolio {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.centered {
    text-align: center;
}

.section-subtitle {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 1.2;
}

/* Portfolio Filter */
.portfolio-filter {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-base);
}

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

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-bg-card);
    aspect-ratio: 3/4;
    cursor: pointer;
    transition: transform var(--transition-slow);
}

.portfolio-item:hover {
    transform: translateY(-8px);
}

.portfolio-media {
    width: 100%;
    height: 100%;
    position: relative;
}

.portfolio-media img,
.portfolio-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slower);
}

.portfolio-item:hover .portfolio-media img,
.portfolio-item:hover .portfolio-media video {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.3) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-category {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.portfolio-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.portfolio-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Play Button */
.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    backdrop-filter: blur(10px);
}

.play-btn svg {
    width: 24px;
    height: 24px;
    margin-left: 4px;
    color: var(--color-text);
}

.play-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translate(-50%, -50%) scale(1.1);
}

.play-btn:hover svg {
    color: var(--color-bg);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-elevated);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.about-description strong {
    color: var(--color-text);
    font-weight: 500;
}

.about-services {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.service-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-accent);
    background: rgba(212, 165, 116, 0.1);
    border: 1px solid rgba(212, 165, 116, 0.3);
    border-radius: 4px;
}

/* About Visual */
.about-visual {
    display: flex;
    justify-content: center;
}

.about-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.about-image-frame {
    aspect-ratio: 3/4;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.about-image-frame:hover .profile-img {
    transform: scale(1.05);
}

.about-stats {
    position: absolute;
    bottom: -30px;
    right: -30px;
    display: flex;
    gap: var(--spacing-md);
    background: var(--color-bg);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.contact-intro {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    text-align: left;
}

/* Contact Info Side */
.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.contact-desc {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.contact-email-large {
    font-size: 1.5rem;
    color: var(--color-accent);
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: color var(--transition-base);
}

.contact-email-large:hover {
    color: var(--color-accent-light);
}

.contact-social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all var(--transition-base);
}

.social-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg);
}

/* Contact Form */
.contact-form {
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.form-group {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    padding: 10px 0;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-base);
    outline: none;
    border-radius: 0;
}

.form-group textarea {
    resize: vertical;
}

/* Floating label effect */
.form-group label {
    position: absolute;
    left: 0;
    top: 10px;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: 0.3s ease all;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-bottom-color: var(--color-accent);
}

.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: -20px;
    font-size: 0.75rem;
    color: var(--color-accent);
}

/* Select Styling */
.form-group select {
    cursor: pointer;
    color: var(--color-text);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-group select option {
    background: var(--color-bg-card);
    color: var(--color-text);
    padding: 10px;
}

.select-arrow {
    position: absolute;
    right: 0;
    top: 15px;
    pointer-events: none;
    color: var(--color-text-muted);
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 15px;
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-base);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.submit-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg);
}

.form-message {
    margin-top: var(--spacing-sm);
    text-align: center;
    font-size: 0.875rem;
    min-height: 20px;
}

.form-message.success {
    color: #4cd964;
}

/* Responsive Contact */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .contact-info {
        text-align: center;
        align-items: center;
    }

    .contact-email-large {
        font-size: 1.25rem;
    }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--spacing-md) 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-text-subtle);
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    font-size: 2rem;
    color: var(--color-text);
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-base);
}

.lightbox-close:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    position: relative;
    /* Para posicionar absoluto el wrapper */
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Video Player Container */
.video-player-container {
    position: relative;
    max-width: 100%;
    max-height: 90vh;
    background: #000;
    overflow: hidden;
    border-radius: 4px;
    display: none;
    /* Oculto por defecto */
}

.video-player-container.active {
    display: block;
}

.lightbox-video {
    max-width: 100%;
    max-height: 90vh;
    display: block;
    width: auto;
    height: auto;
}

/* Custom Controls */
.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 10;
}

.video-player-container.paused .video-controls,
.video-controls.visible {
    opacity: 1;
}

/* Progress Bar */
.progress-area {
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    position: relative;
    border-radius: 2px;
    transition: height 0.1s ease;
}

.progress-area:hover {
    height: 8px;
}

.progress-bar {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 2px;
}

.progress-current {
    height: 100%;
    background: var(--color-accent);
    width: 0%;
    position: relative;
}

.time-tooltip {
    position: absolute;
    top: -30px;
    left: 0;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 2px 6px;
    font-size: 12px;
    border-radius: 4px;
    display: none;
    transform: translateX(-50%);
    pointer-events: none;
    font-family: var(--font-body);
}

.progress-area:hover .time-tooltip {
    display: block;
}

/* Controls Layout */
.controls-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.controls-left,
.controls-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.control-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, color 0.2s ease;
}

.control-btn:hover {
    color: var(--color-accent);
    transform: scale(1.1);
}

.control-btn svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.video-timer {
    font-size: 14px;
    color: #ddd;
    font-family: var(--font-body);
    font-variant-numeric: tabular-nums;
}

.lightbox-img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    display: none;
}

.lightbox-img.active {
    display: block;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

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

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-visual {
        order: -1;
    }

    .about-image-wrapper {
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-lg);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        font-size: 1.5rem;
        letter-spacing: 0.1em;
    }

    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-sm);
    }

    .about-stats {
        position: relative;
        bottom: 0;
        right: 0;
        margin-top: var(--spacing-md);
        justify-content: center;
    }

    .contact-social {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-filter {
        justify-content: center;
    }
}

/* Hidden items during filter */
.portfolio-item.hidden {
    display: none;
}