/* ============================================
   SAMEER MIRZA - PORTFOLIO WEBSITE
   Design System: Copper & Slate
   Typography: Playfair Display + Plus Jakarta Sans
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Copper & Slate Palette */
    --color-primary: #B87333;
    --color-primary-light: #D4A574;
    --color-primary-dark: #8B5A2B;
    --color-slate: #2F3640;
    --color-slate-light: #4A5568;
    --color-slate-dark: #1A1D23;
    --color-cream: #F5F0EB;
    --color-cream-dark: #E8E0D5;
    --color-white: #FFFFFF;
    --color-text: #2F3640;
    --color-text-light: #6B7280;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --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);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* 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);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-slate);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    margin-bottom: var(--space-md);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

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

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

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

.btn-full {
    width: 100%;
}

/* Section Styles */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-subtitle {
    color: var(--color-text-light);
    font-size: 1.125rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(245, 240, 235, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(47, 54, 64, 0.1);
    transition: all var(--transition-base);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-slate);
}

.nav-logo-icon {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--color-slate);
    position: relative;
}

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

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

.nav-link-cta {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md);
}

.nav-link-cta::after {
    display: none;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-slate);
    transition: all var(--transition-base);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--space-3xl)) 0 var(--space-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.hero-shape-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -200px;
}

.hero-shape-2 {
    width: 400px;
    height: 400px;
    background: var(--color-slate);
    bottom: -100px;
    left: -100px;
}

.hero-shape-3 {
    width: 300px;
    height: 300px;
    background: var(--color-primary-light);
    top: 50%;
    left: 30%;
    opacity: 0.05;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background-color: rgba(184, 115, 51, 0.1);
    color: var(--color-primary);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background-color: #22C55E;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    margin-bottom: var(--space-lg);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.hero-stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.hero-img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 2;
}

.hero-image-decoration {
    position: absolute;
    inset: -20px;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-xl);
    z-index: 1;
}

.hero-image-card {
    position: absolute;
    bottom: 30px;
    left: -30px;
    background-color: var(--color-white);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    z-index: 3;
    animation: float 3s ease-in-out infinite;
}

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

.hero-image-card-icon {
    font-size: 1.5rem;
}

.hero-image-card-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-slate);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text-light);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

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

/* Services Section */
.services {
    padding: var(--space-3xl) 0;
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.service-card {
    background-color: var(--color-cream);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card-featured {
    background-color: var(--color-slate);
    color: var(--color-white);
}

.service-card-featured .service-title,
.service-card-featured .service-description {
    color: var(--color-white);
}

.service-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(184, 115, 51, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.service-card-featured .service-icon {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.service-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.service-card-featured .service-description {
    color: rgba(255, 255, 255, 0.8);
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
}

.service-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 700;
}

.service-card-featured .service-features li::before {
    color: var(--color-primary-light);
}

/* Portfolio Section */
.portfolio {
    padding: var(--space-3xl) 0;
    background-color: var(--color-cream);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.portfolio-filter {
    padding: var(--space-xs) var(--space-md);
    background-color: transparent;
    border: 1px solid var(--color-slate);
    border-radius: var(--radius-xl);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.portfolio-filter:hover,
.portfolio-filter.active {
    background-color: var(--color-slate);
    color: var(--color-white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.portfolio-item {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-lg);
    text-align: center;
}

.blog-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.seo-gradient {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.web-gradient {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.portfolio-category {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.portfolio-item-title {
    color: var(--color-white);
    font-size: 1.25rem;
    font-family: var(--font-display);
}

.portfolio-content {
    padding: var(--space-lg);
}

.portfolio-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.portfolio-excerpt {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.portfolio-meta {
    display: flex;
    gap: var(--space-md);
    font-size: 0.75rem;
}

.portfolio-word-count {
    color: var(--color-text-light);
}

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

.portfolio-cta {
    text-align: center;
    margin-top: var(--space-3xl);
}

.portfolio-cta p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

/* About Section */
.about {
    padding: var(--space-3xl) 0;
    background-color: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.about-image-decoration {
    position: absolute;
    inset: -20px;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.about-content .section-tag {
    margin-bottom: var(--space-sm);
}

.about-content .section-title {
    margin-bottom: var(--space-lg);
}

.about-text {
    margin-bottom: var(--space-xl);
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.about-text strong {
    color: var(--color-slate);
}

.about-skills {
    margin-bottom: var(--space-xl);
}

.about-skills-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-lg);
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.skill-name {
    font-weight: 600;
    font-size: 0.875rem;
}

.skill-bar {
    height: 8px;
    background-color: var(--color-cream);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-xl);
    transition: width 1s ease;
}

/* Testimonials Section */
.testimonials {
    padding: var(--space-3xl) 0;
    background-color: var(--color-slate);
    color: var(--color-white);
}

.testimonials .section-title {
    color: var(--color-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.testimonial-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-stars {
    color: var(--color-primary);
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    color: rgba(255, 255, 255, 0.9);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.testimonial-info {
    display: flex;
    flex-direction: column;
}

.testimonial-name {
    font-weight: 600;
}

.testimonial-role {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Contact Section */
.contact {
    padding: var(--space-3xl) 0;
    background-color: var(--color-cream);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
}

.contact-info .section-title {
    margin-bottom: var(--space-md);
}

.contact-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

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

.contact-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-xs);
}

.contact-value {
    font-weight: 600;
    color: var(--color-slate);
}

.contact-socials {
    display: flex;
    gap: var(--space-sm);
}

.contact-social {
    color: var(--color-primary);
    font-weight: 600;
    transition: color var(--transition-fast);
}

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

.contact-form-wrapper {
    background-color: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-slate);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm);
    border: 1px solid var(--color-cream-dark);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--color-cream);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--color-slate-dark);
    color: var(--color-white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.footer-logo-icon {
    font-size: 1.5rem;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-white);
}

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

.footer-menu a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.footer-socials {
    display: flex;
    gap: var(--space-sm);
}

.footer-social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.footer-social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin: 0;
}

.footer-credit {
    color: var(--color-primary) !important;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        order: 2;
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-image-card {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--color-cream);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid rgba(47, 54, 64, 0.1);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth scroll offset for fixed nav */
html {
    scroll-padding-top: 100px;
}