/* ====================================
   PLAC'ART - VARIABLES CSS
   ==================================== */
:root {
    --noir-profond: #0a0a0a;
    --noir-charbon: #1a1a1a;
    --noir-ardoise: #2a2a2a;
    --noir-graphite: #151515;
    
    --vert-emeraude: #00ff9f;
    --vert-jade: #00d87f;
    --vert-menthe: #00ffb3;
    --vert-sapin: #003d29;
    --vert-profond: #002618;
    
    --blanc-pur: #ffffff;
    --blanc-casse: #f5f5f5;
    --gris-platine: #c8c8c8;
    --gris-argent: #8a8a8a;
    
    --or-champagne: #d4af37;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--noir-profond);
    color: var(--blanc-pur);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

/* ====================================
   NAVIGATION
   ==================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.25rem 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 255, 159, 0.1);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 0.8rem 0;
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
    border-radius: 6px;
}

.logo-content {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--blanc-pur);
    font-variant-numeric: lining-nums;
}

.logo-tagline {
    font-size: 0.6rem;
    color: var(--gris-platine);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 300;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    color: var(--blanc-pur);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    position: relative;
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--vert-emeraude), transparent);
    transition: var(--transition-smooth);
    transform: translateX(-50%);
}

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

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

.contact-btn {
    padding: 0.75rem 1.8rem !important;
    background: linear-gradient(135deg, var(--vert-emeraude), var(--vert-jade));
    border-radius: 50px;
    color: var(--noir-profond) !important;
    font-weight: 600;
}

.contact-btn::before {
    display: none !important;
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 159, 0.4);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
    background: transparent;
    border: none;
}

.menu-toggle span {
    width: 28px;
    height: 2px;
    background: var(--vert-emeraude);
    transition: var(--transition-smooth);
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 7rem 1.5rem 4rem;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 159, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 255, 159, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at center, var(--noir-charbon) 0%, var(--noir-profond) 70%);
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 255, 159, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 159, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.5;
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 900px;
    width: 100%;
}

.hero-subtitle {
    font-size: clamp(0.75rem, 2vw, 0.875rem);
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--vert-emeraude);
    margin-bottom: 1.25rem;
    font-weight: 400;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    word-break: break-word;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--vert-emeraude) 0%, var(--vert-jade) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    position: relative;
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--gris-platine);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.scroll-indicator span {
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gris-argent);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--vert-emeraude), transparent);
    animation: scrollAnimation 2s ease-in-out infinite;
}

@keyframes scrollAnimation {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(15px); opacity: 0; }
}

/* ====================================
   BUTTONS
   ==================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition-smooth);
    min-width: 180px;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--vert-emeraude), var(--vert-jade));
    color: var(--noir-profond);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 255, 159, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--blanc-pur);
    border: 2px solid var(--vert-emeraude);
}

.btn-secondary:hover {
    background: rgba(0, 255, 159, 0.1);
    transform: translateY(-3px);
}

/* ====================================
   CONTAINER & SECTIONS
   ==================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-full {
    width: 100%;
    padding: 0 1.5rem;
}

section {
    padding: clamp(4rem, 8vw, 7rem) 0;
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-subtitle {
    display: inline-block;
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--vert-emeraude);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title .highlight {
    background: linear-gradient(135deg, var(--vert-emeraude) 0%, var(--vert-jade) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ====================================
   STATS SECTION
   ==================================== */
.stats-section {
    background: linear-gradient(180deg, var(--noir-profond) 0%, var(--noir-graphite) 100%);
    padding: 4rem 0;
    border-top: 1px solid rgba(0, 255, 159, 0.1);
    border-bottom: 1px solid rgba(0, 255, 159, 0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.75rem 1rem;
    border-radius: 16px;
    background: rgba(0, 255, 159, 0.03);
    border: 1px solid rgba(0, 255, 159, 0.1);
    transition: var(--transition-smooth);
}

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--vert-emeraude) 0%, var(--vert-jade) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gris-platine);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ====================================
   SERVICES SECTION
   ==================================== */
.services-section {
    background: var(--noir-profond);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: linear-gradient(145deg, var(--noir-charbon), var(--noir-graphite));
    padding: clamp(1.75rem, 4vw, 2.5rem);
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 159, 0.1);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card.featured {
    background: linear-gradient(145deg, var(--vert-profond), var(--noir-charbon));
    border-color: var(--vert-emeraude);
}

.featured-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--vert-emeraude);
    color: var(--noir-profond);
    padding: 0.35rem 0.8rem;
    border-radius: 50px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    color: var(--vert-emeraude);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--blanc-pur);
}

.service-description {
    color: var(--gris-platine);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.service-features li {
    padding: 0.6rem 0;
    color: var(--gris-platine);
    border-bottom: 1px solid rgba(0, 255, 159, 0.1);
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--vert-emeraude);
    font-weight: 700;
}

.service-link {
    color: var(--vert-emeraude);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* ====================================
   EXPERTISE SECTION
   ==================================== */
.expertise-section {
    background: linear-gradient(180deg, var(--noir-profond) 0%, var(--noir-charbon) 100%);
}

.expertise-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    align-items: center;
}

.expertise-left .section-title {
    text-align: left;
}

.expertise-text {
    font-size: 1rem;
    color: var(--gris-platine);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.feature-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--vert-emeraude), var(--vert-jade));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--noir-profond);
    font-weight: 700;
    flex-shrink: 0;
}

.feature-text strong {
    font-size: 1.05rem;
    color: var(--blanc-pur);
}

.feature-text span {
    color: var(--gris-argent);
    font-size: 0.9rem;
}

.image-stack {
    position: relative;
    height: 480px;
    width: 100%;
}

.image-stack-item {
    position: absolute;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.image-1 {
    width: 75%;
    height: 80%;
    top: 0;
    left: 0;
    background: linear-gradient(135deg, rgba(0, 255, 159, 0.3), rgba(0, 216, 127, 0.3)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 600"><rect fill="%231a1a1a" width="800" height="600"/><text x="400" y="300" font-family="Arial" font-size="40" fill="%2300ff9f" text-anchor="middle">Plâtrerie Premium</text></svg>');
    background-size: cover;
    background-position: center;
    z-index: 2;
}

.image-2 {
    width: 65%;
    height: 70%;
    bottom: 0;
    right: 0;
    background: linear-gradient(135deg, rgba(0, 255, 159, 0.2), rgba(0, 216, 127, 0.2)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 600"><rect fill="%232a2a2a" width="800" height="600"/><text x="400" y="300" font-family="Arial" font-size="40" fill="%2300ff9f" text-anchor="middle">Peinture Artisanale</text></svg>');
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.accent-box {
    position: absolute;
    width: 160px;
    height: 160px;
    border: 2px solid var(--vert-emeraude);
    border-radius: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
}

/* ====================================
   PORTFOLIO SECTION
   ==================================== */
.portfolio-section {
    background: var(--noir-profond);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-auto-rows: 240px;
    gap: 1.25rem;
}

.portfolio-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid rgba(0, 255, 159, 0.1);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ====================================
   LIGHTBOX
   ==================================== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.98);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    padding: 1rem;
}

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

.lightbox-content {
    position: relative;
    max-width: 95vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-counter {
    margin-top: 1rem;
    color: var(--gris-platine);
    font-size: 0.85rem;
    letter-spacing: 2px;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(0, 255, 159, 0.15);
    border: 1px solid rgba(0, 255, 159, 0.4);
    color: var(--vert-emeraude);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    z-index: 3001;
}

.lightbox-close {
    top: 1.5rem;
    right: 1.5rem;
}

.lightbox-prev {
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

/* ====================================
   ABOUT SECTION
   ==================================== */
.about-section {
    background: linear-gradient(180deg, var(--noir-charbon) 0%, var(--noir-profond) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.founder-card {
    background: linear-gradient(145deg, var(--noir-graphite), var(--noir-charbon));
    border-radius: 20px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    border: 1px solid rgba(0, 255, 159, 0.2);
}

.founder-image {
    width: 180px;
    height: 180px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--vert-emeraude), var(--vert-jade));
    border: 4px solid var(--noir-charbon);
    position: relative;
}

.founder-image::after {
    content: 'CG';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--noir-profond);
}

.founder-info h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.founder-info p {
    color: var(--vert-emeraude);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.about-right .section-title {
    text-align: left;
}

.about-text {
    font-size: 1rem;
    color: var(--gris-platine);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2rem;
}

.value-item {
    padding: 1.5rem 1rem;
    background: rgba(0, 255, 159, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(0, 255, 159, 0.1);
    transition: var(--transition-smooth);
}

.value-item:hover {
    background: rgba(0, 255, 159, 0.06);
    border-color: var(--vert-emeraude);
    transform: translateY(-3px);
}

.value-item h4 {
    font-family: 'Playfair Display', serif;
    font-size: 1.25rem;
    color: var(--vert-emeraude);
    margin-bottom: 0.5rem;
}

.value-item p {
    color: var(--gris-argent);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ====================================
   CONTACT SECTION
   ==================================== */
.contact-section {
    background: var(--noir-profond);
}

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

.contact-intro {
    font-size: 1rem;
    color: var(--gris-platine);
    line-height: 1.8;
    margin: 0 auto 2.5rem;
}

.contact-info-centered {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: linear-gradient(145deg, var(--noir-charbon), var(--noir-graphite));
    border-radius: 16px;
    border: 1px solid rgba(0, 255, 159, 0.1);
    text-align: left;
    flex: 1 1 280px;
    max-width: 380px;
}

.info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow-wrap: anywhere;
}

.info-text strong {
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.info-text a {
    color: var(--vert-emeraude);
    text-decoration: none;
    font-size: 1rem;
}

/* ====================================
   FOOTER
   ==================================== */
.footer {
    background: var(--noir-charbon);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(0, 255, 159, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--blanc-pur);
    font-variant-numeric: lining-nums;
}

.footer-logo-image {
    height: 32px;
    width: auto;
}

.footer-tagline {
    color: var(--gris-argent);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.footer-copyright {
    color: var(--gris-argent);
    font-size: 0.8rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: var(--vert-emeraude);
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
}

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

.footer-column ul li a {
    color: var(--gris-platine);
    text-decoration: none;
    font-size: 0.875rem;
}

/* ====================================
   RESPONSIVE MEDIA QUERIES
   ==================================== */
@media (max-width: 991px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expertise-content,
    .about-content,
    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .expertise-left .section-title,
    .about-right .section-title {
        text-align: center;
    }

    .about-values {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 1.5rem;
        transition: right 0.4s ease-in-out;
        z-index: 999;
        padding: 2rem;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .image-stack {
        height: 320px;
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 220px;
    }
}