/* ============================================
   YC Building Services - Stylesheet
   ============================================ */

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

:root {
    --navy: #1a2256;
    --navy-dark: #0f1538;
    --orange: #e8a02e;
    --orange-light: #f0b84d;
    --orange-dark: #c98820;
    --white: #ffffff;
    --off-white: #f8f7f4;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --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 -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 72px;
    width: auto;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.92);
    border-radius: var(--radius-sm);
    padding: 5px 8px;
}

.navbar.scrolled .nav-logo img {
    height: 58px;
    background: rgba(255, 255, 255, 0.6);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--white);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar.scrolled .nav-links a {
    color: var(--gray-700);
}

.nav-links a:hover {
    color: var(--orange);
}

.nav-cta {
    background: var(--orange) !important;
    color: var(--white) !important;
    font-weight: 600 !important;
    border-radius: 50px !important;
    padding: 10px 24px !important;
}

.nav-cta:hover {
    background: var(--orange-dark) !important;
    color: var(--white) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.navbar.scrolled .nav-toggle span {
    background: var(--gray-800);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 50px;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    gap: 8px;
}

.btn-primary {
    background: var(--orange);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(232, 160, 46, 0.4);
}

.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232, 160, 46, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

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

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1.15); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(15, 21, 56, 0.92) 0%,
        rgba(26, 34, 86, 0.8) 40%,
        rgba(26, 34, 86, 0.6) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 140px 24px 100px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(232, 160, 46, 0.15);
    border: 1px solid rgba(232, 160, 46, 0.3);
    border-radius: 50px;
    color: var(--orange-light);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease forwards;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.05;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.hero-accent {
    color: var(--orange);
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 64px;
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    gap: 48px;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

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

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--orange);
    line-height: 1;
}

.stat-suffix {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--orange);
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
    margin-top: 4px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); }
}

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

/* --- Section Common --- */
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(232, 160, 46, 0.1);
    color: var(--orange-dark);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 16px;
    line-height: 1.15;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* --- About Section --- */
.about {
    padding: 120px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-img-main img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

.about-img-secondary {
    position: absolute;
    bottom: -40px;
    right: -40px;
    width: 220px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 6px solid var(--white);
    box-shadow: var(--shadow-lg);
}

.about-img-secondary img {
    width: 100%;
    height: 260px;
    object-fit: cover;
}

.about-accent-box {
    position: absolute;
    top: -24px;
    left: -24px;
    background: var(--orange);
    color: var(--white);
    padding: 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: 0 8px 30px rgba(232, 160, 46, 0.4);
}

.accent-number {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 2.4rem;
    font-weight: 900;
    line-height: 1;
}

.accent-text {
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0.9;
    line-height: 1.3;
    margin-top: 4px;
}

.about-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--navy);
    line-height: 1.2;
    margin-bottom: 20px;
}

.about-lead {
    font-size: 1.05rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-content > p {
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(232, 160, 46, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
}

.feature strong {
    display: block;
    font-size: 0.95rem;
    color: var(--navy);
    margin-bottom: 4px;
}

.feature p {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.5;
}

/* --- Services Section --- */
.services {
    padding: 120px 0;
    background: var(--off-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.service-image {
    height: 220px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.service-card:hover .service-image img {
    transform: scale(1.08);
}

.service-content {
    padding: 28px;
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--navy), var(--navy-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    margin-bottom: 16px;
    margin-top: -52px;
    position: relative;
    box-shadow: var(--shadow-md);
}

.service-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 10px;
}

.service-content p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* --- Showcase Section --- */
.showcase {
    padding: 120px 0;
    background: var(--white);
}

.showcase-project {
    margin-bottom: 80px;
    padding-bottom: 80px;
    border-bottom: 1px solid var(--gray-200);
}

.showcase-project:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.showcase-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 32px;
}

.showcase-label {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(232, 160, 46, 0.1);
    color: var(--orange-dark);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-radius: 50px;
    margin-bottom: 12px;
}

.showcase-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 12px;
    line-height: 1.2;
}

.showcase-header p {
    color: var(--gray-500);
    line-height: 1.7;
    max-width: 560px;
}

.showcase-meta {
    display: flex;
    gap: 24px;
    flex-shrink: 0;
}

.meta-item {
    text-align: center;
}

.meta-item strong {
    display: block;
    font-size: 0.7rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

.meta-item span {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--navy);
}

.showcase-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    grid-auto-rows: 260px;
}

.showcase-img {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.showcase-img.main {
    grid-row: span 2;
    grid-column: span 1;
}

.showcase-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.showcase-img:hover img {
    transform: scale(1.06);
}

.img-label {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 0.02em;
}

.showcase-gallery-wide {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 240px;
}

.showcase-gallery-wide .showcase-img.main {
    grid-column: span 2;
    grid-row: span 2;
}

/* --- Projects Section --- */
.projects {
    padding: 120px 0;
    background: var(--off-white);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1.5px solid var(--gray-200);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

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

.project-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    grid-auto-rows: 280px;
}

.project-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s ease;
}

.project-item.large {
    grid-column: span 2;
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.project-item:hover img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 21, 56, 0.9) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.project-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--orange);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 50px;
    width: fit-content;
    margin-bottom: 10px;
}

.project-overlay h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.project-overlay p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.project-item.hidden {
    display: none;
}

/* --- Process Section --- */
.process {
    padding: 120px 0;
    background: var(--navy-dark);
    position: relative;
    overflow: hidden;
}

.process::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(232, 160, 46, 0.08), transparent 70%);
    border-radius: 50%;
}

.process .section-tag {
    background: rgba(232, 160, 46, 0.15);
    color: var(--orange-light);
}

.process .section-header h2 {
    color: var(--white);
}

.process .section-header p {
    color: rgba(255, 255, 255, 0.5);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: linear-gradient(to right, var(--orange), rgba(232, 160, 46, 0.2));
}

.process-step {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.process-step.visible {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--orange), var(--orange-dark));
    color: var(--white);
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 800;
    border-radius: 50%;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
    box-shadow: 0 8px 30px rgba(232, 160, 46, 0.3);
}

.step-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.step-content p {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
}

/* --- CTA Banner --- */
.cta-banner {
    position: relative;
    padding: 120px 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 21, 56, 0.93), rgba(26, 34, 86, 0.88));
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.2;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 32px;
    line-height: 1.7;
}

/* --- Contact Section --- */
.contact {
    padding: 120px 0;
    background: var(--off-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
    align-items: start;
}

.contact-info h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 16px;
    line-height: 1.2;
}

.contact-info > p {
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 36px;
}

.contact-partners {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 28px;
}

.partner-card {
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1.5px solid var(--gray-200);
}

.partner-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 12px;
}

.partner-detail {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    color: var(--orange);
}

.partner-detail a {
    font-size: 0.88rem;
    color: var(--gray-700);
    font-weight: 500;
}

.partner-detail a:hover {
    color: var(--orange);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 36px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(232, 160, 46, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
}

.contact-item strong {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.contact-item a,
.contact-item span {
    font-size: 0.95rem;
    color: var(--gray-700);
    font-weight: 500;
}

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

.contact-hours {
    padding: 20px 24px;
    background: var(--white);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--orange);
}

.contact-hours strong {
    display: block;
    font-size: 0.9rem;
    color: var(--navy);
    margin-bottom: 8px;
}

.contact-hours p {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* --- Contact Form --- */
.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--gray-800);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--orange);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(232, 160, 46, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23737373' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

/* --- Footer --- */
.footer {
    background: var(--navy-dark);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    height: 72px;
    background: rgba(255, 255, 255, 0.92);
    border-radius: 6px;
    padding: 5px 8px;
    width: auto;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-links li {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.45);
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.3);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-images {
        max-width: 500px;
    }

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

    .showcase-header {
        flex-direction: column;
        gap: 20px;
    }

    .showcase-gallery,
    .showcase-gallery-wide {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 220px;
    }

    .showcase-img.main,
    .showcase-gallery-wide .showcase-img.main {
        grid-column: span 2;
        grid-row: span 1;
    }

    .project-gallery {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: 240px;
    }

    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 48px;
    }

    .process-timeline::before {
        display: none;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 4px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        transition: right 0.4s ease;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        color: var(--gray-700) !important;
        padding: 14px 0;
        font-size: 1rem;
        border-bottom: 1px solid var(--gray-100);
        border-radius: 0 !important;
        width: 100%;
    }

    .nav-cta {
        margin-top: 16px;
        text-align: center;
        border-bottom: none !important;
        background: var(--orange) !important;
        color: var(--white) !important;
        border-radius: 50px !important;
        padding: 14px 24px !important;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .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-stats {
        gap: 32px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

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

    .showcase-gallery,
    .showcase-gallery-wide {
        grid-template-columns: 1fr 1fr;
        grid-auto-rows: 200px;
    }

    .showcase-img.main,
    .showcase-gallery-wide .showcase-img.main {
        grid-column: span 2;
        grid-row: span 1;
    }

    .showcase-header h3 {
        font-size: 1.4rem;
    }

    .showcase-meta {
        gap: 16px;
    }

    .project-gallery {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 200px;
    }

    .project-item.large {
        grid-column: span 2;
    }

    .process-timeline {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-partners {
        grid-template-columns: 1fr;
    }

    .partner-detail a {
        font-size: 0.82rem;
        word-break: break-all;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        padding: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.4rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat {
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }

    .project-gallery {
        grid-template-columns: 1fr;
        grid-auto-rows: 220px;
    }

    .project-item.large {
        grid-column: span 1;
    }

    .about-img-secondary {
        right: -10px;
        bottom: -20px;
        width: 160px;
    }

    .about-img-secondary img {
        height: 190px;
    }

    .about-accent-box {
        left: -10px;
        top: -16px;
    }
}

/* --- Lightbox Modal --- */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    cursor: zoom-out;
}

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

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.lightbox.active img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}