/* APPLE-LIKE DESIGN - Patrick Sonata Portfolio */
:root {
    /* Apple Color System */
    --black: #000000;
    --white: #ffffff;
    --gray-1: #f5f5f7;
    --gray-2: #d2d2d7;
    --gray-3: #86868b;
    --gray-4: #424245;
    --gray-5: #1d1d1f;
    --gray-6: #0d0d0f;
    
    /* Accent Colors */
    --blue: #007aff;
    --purple: #5856d6;
    --pink: #ff2d55;
    --orange: #ff9500;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Georgia", "Times New Roman", serif;
    --font-mono: "SF Mono", Monaco, "Courier New", monospace;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 4rem;
    --space-8: 6rem;
    --space-9: 8rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-2xl: 28px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 40px 90px rgba(0, 0, 0, 0.16);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--gray-5);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    font-size: 1.125rem;
    color: var(--gray-4);
    max-width: 65ch;
}

small {
    font-size: 0.875rem;
    color: var(--gray-3);
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.section {
    padding: var(--space-9) 0;
}

.section-sm {
    padding: var(--space-7) 0;
}

.section-lg {
    padding: var(--space-9) 0;
}

/* Header - Apple Design */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: var(--space-3) 0;
    transition: var(--transition);
}

.header.scrolled {
    padding: var(--space-2) 0;
    background-color: rgba(255, 255, 255, 0.92);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    text-decoration: none;
    letter-spacing: -0.02em;
    transition: var(--transition-fast);
}

.logo:hover {
    opacity: 0.8;
}

.logo span {
    color: var(--gray-3);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-6);
}

.nav-link {
    color: var(--gray-4);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    position: relative;
    padding: var(--space-2) 0;
    transition: var(--transition-fast);
}

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

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

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

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

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

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

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(245, 245, 247, 0.8) 0%, 
        rgba(255, 255, 255, 0.9) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.profile-container {
    margin: 0 auto var(--space-6);
    width: 200px;
    height: 200px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 1px solid var(--gray-2);
    position: relative;
    background: var(--white);
}

.profile-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.2) 0%, 
        rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

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

.profile-container:hover .profile-img {
    transform: scale(1.05);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--space-3);
    background: linear-gradient(135deg, 
        var(--gray-6) 0%, 
        var(--gray-4) 50%, 
        var(--gray-3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-3);
    margin-bottom: var(--space-4);
    font-weight: 400;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray-4);
    margin-bottom: var(--space-6);
}

/* Portfolio Section */
.section-title {
    text-align: center;
    margin-bottom: var(--space-6);
    position: relative;
    padding-bottom: var(--space-3);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--gray-2);
    border-radius: var(--radius-full);
}

/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-7);
}

.filter-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--gray-1);
    color: var(--gray-4);
    border: 1px solid var(--gray-2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    outline: none;
    user-select: none;
}

.filter-btn:hover {
    background: var(--gray-2);
    color: var(--gray-5);
}

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

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-6);
}

.portfolio-item {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-2);
    transition: var(--transition);
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-3);
}

.portfolio-img-container {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

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

.portfolio-info {
    padding: var(--space-5);
}

.portfolio-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
    color: var(--black);
}

.portfolio-subtitle {
    font-size: 0.875rem;
    color: var(--gray-3);
    margin-bottom: var(--space-4);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.portfolio-details {
    background: var(--gray-1);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.detail-item {
    display: flex;
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
}

.detail-label {
    font-weight: 600;
    color: var(--gray-4);
    min-width: 100px;
    flex-shrink: 0;
}

.detail-content {
    color: var(--gray-4);
    flex: 1;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-bottom: var(--space-5);
}

.portfolio-tag {
    background: var(--gray-1);
    color: var(--gray-4);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--blue);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.portfolio-link:hover {
    color: var(--black);
    gap: var(--space-2);
}

.portfolio-link::after {
    content: '→';
    transition: var(--transition-fast);
}

/* Footer */
.footer {
    background: var(--gray-1);
    padding: var(--space-9) 0 var(--space-7);
    border-top: 1px solid var(--gray-2);
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--white);
    color: var(--gray-4);
    font-size: 1rem;
    transition: var(--transition);
    border: 1px solid var(--gray-2);
    text-decoration: none;
}

.social-link:hover {
    background: var(--black);
    color: var(--white);
    transform: translateY(-2px);
    border-color: var(--black);
}

.copyright {
    color: var(--gray-3);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: var(--space-5);
    right: var(--space-5);
    width: 56px;
    height: 56px;
    background: #25D366;
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    text-decoration: none;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 1000;
    border: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: var(--space-5);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .container {
        padding: 0 var(--space-3);
    }
    
    .section {
        padding: var(--space-7) 0;
    }
    
    .hero {
        padding-top: 60px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .profile-container {
        width: 160px;
        height: 160px;
    }
    
    .nav-menu {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: saturate(180%) blur(20px);
        padding: var(--space-3) 0;
        justify-content: space-around;
        border-top: 1px solid var(--gray-2);
        gap: 0;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }
    
    .portfolio-filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--space-2);
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    
    .portfolio-filters::-webkit-scrollbar {
        display: none;
    }
    
    .filter-btn {
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .profile-container {
        width: 140px;
        height: 140px;
    }
    
    .portfolio-info {
        padding: var(--space-4);
    }
    
    .detail-item {
        flex-direction: column;
        gap: var(--space-1);
    }
    
    .detail-label {
        margin-bottom: 0;
    }
    
    .whatsapp-float {
        bottom: var(--space-4);
        right: var(--space-4);
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s var(--transition);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-gradient { 
    background-clip: text; 
    -webkit-text-fill-color: transparent; 
}
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* === SOBRE SECTION === */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-top: var(--space-8);
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 300px 1fr;
        gap: var(--space-12);
    }
}

.about-image {
    position: relative;
}

.profile-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform 0.5s var(--transition);
}

.profile-img:hover {
    transform: translateY(-5px);
}

.bio-header {
    margin-bottom: var(--space-6);
}

.tagline {
    color: var(--gray-4);
    font-size: 1.1rem;
    margin-top: var(--space-2);
    line-height: 1.6;
}

.bio-content {
    line-height: 1.8;
}

.bio-content h4 {
    color: var(--black);
    margin: var(--space-6) 0 var(--space-3);
    font-size: 1.3rem;
    font-weight: 600;
}

.bio-content p {
    margin-bottom: var(--space-4);
    color: var(--gray-5);
}

.bio-content ul {
    margin-left: var(--space-4);
    margin-bottom: var(--space-4);
}

.bio-content li {
    margin-bottom: var(--space-3);
    color: var(--gray-5);
    position: relative;
    padding-left: var(--space-4);
}

.bio-content li:before {
    content: "•";
    color: var(--primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.mini-bio {
    margin-top: var(--space-8);
    padding: var(--space-6);
    background: var(--gray-1);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
}

.mini-bio h5 {
    font-size: 1.2rem;
    margin-bottom: var(--space-4);
    color: var(--black);
}

.bio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .bio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.bio-card {
    background: var(--white);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-2);
    transition: all 0.3s var(--transition);
}

.bio-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.bio-icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: var(--space-3);
}

.bio-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    color: var(--gray-5);
}

/* === HERO SECTION === */
.hero-section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-text {
    order: 2;
}

@media (min-width: 1024px) {
    .hero-text {
        order: 1;
    }
}

.hero-image {
    order: 1;
    text-align: center;
}

@media (min-width: 1024px) {
    .hero-image {
        order: 2;
        text-align: right;
    }
}

.hero-img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform 0.5s var(--transition);
}

.hero-img:hover {
    transform: scale(1.02);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-4);
    margin: var(--space-4) 0 var(--space-6);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: all 0.3s var(--transition);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    padding: var(--space-2) 0;
    border-bottom-color: var(--gray-2);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    text-decoration: none;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--black);
}

.nav-links {
    display: flex;
    gap: var(--space-6);
}

.nav-link {
    text-decoration: none;
    color: var(--gray-4);
    font-weight: 500;
    transition: color 0.3s var(--transition);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--black);
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--space-6);
        box-shadow: var(--shadow-md);
        display: none;
    }
    
    .nav-links.show {
        display: flex;
    }
}

/* === PORTFOLIO === */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--transition);
}

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: var(--space-6);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

/* === CONTACT === */
.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    margin-top: var(--space-8);
}

@media (min-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-methods {
    margin-top: var(--space-6);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--gray-5);
    margin-bottom: var(--space-4);
    transition: color 0.3s var(--transition);
}

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

.contact-method i {
    font-size: 1.2rem;
    width: 30px;
}

.form-group {
    margin-bottom: var(--space-4);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-2);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* === FOOTER === */
.footer {
    background-color: var(--gray-1);
    padding: var(--space-12) 0 var(--space-6);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.footer-logo p {
    color: var(--gray-4);
    margin-top: var(--space-2);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-links a {
    text-decoration: none;
    color: var(--gray-4);
    transition: color 0.3s var(--transition);
}

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

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--white);
    border-radius: 50%;
    color: var(--gray-5);
    text-decoration: none;
    transition: all 0.3s var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-2);
    padding-top: var(--space-6);
    text-align: center;
    color: var(--gray-4);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: var(--space-2);
}

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

.fade-in {
    animation: fadeIn 0.6s var(--transition);
}

/* Utility Classes */
.text-center { text-align: center; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* === PORTFOLIO === */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
    cursor: pointer;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--transition);
}

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: var(--space-6);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
    font-weight: 600;
}

.portfolio-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
    line-height: 1.4;
}