/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #f8f6f3;
    --bg-secondary: #efeae4;
    --bg-card: #ffffff;
    --bg-dark: #1a1a2e;
    --bg-dark-card: #222240;
    --text-primary: #1a1a2e;
    --text-secondary: #5a5a6e;
    --text-muted: #8a8a9a;
    --text-on-dark: #f0f0f5;
    --text-on-dark-secondary: #b0b0c0;
    --accent: #c45c2c;
    --accent-light: #d4744a;
    --accent-dark: #a0441c;
    --accent-bg: rgba(196, 92, 44, 0.08);
    --blue: #2563a8;
    --blue-light: #3b82c6;
    --blue-bg: rgba(37, 99, 168, 0.08);
    --orange: #e87830;
    --green: #2a8a4a;
    --green-bg: rgba(42, 138, 74, 0.08);
    --red: #dc3545;
    --yellow: #e8a820;
    --border: #e0dbd5;
    --border-light: #eae5df;
    --border-dark: rgba(255,255,255,0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* ===== Skip Link ===== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 10001;
    padding: 12px 24px;
    background: var(--accent);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
    transition: top var(--transition-fast);
}
.skip-link:focus {
    top: 16px;
}

/* ===== Focus Visible ===== */
:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
    border-radius: 2px;
}
a:focus-visible, button:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* ===== Preloader ===== */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }

.loader-pipe {
    width: 60px;
    height: 8px;
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
    overflow: hidden;
}
.pipe-flow {
    height: 100%;
    width: 40%;
    background: var(--accent);
    border-radius: 4px;
    animation: flow 1.2s ease-in-out infinite;
}
@keyframes flow {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(250%); }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-base);
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    padding: 10px 0;
    box-shadow: var(--shadow-sm);
}
/* Hero is dark, so navbar on top of hero needs light text */
.navbar:not(.scrolled) { color: white; }
.navbar.scrolled { color: var(--text-primary); }

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}
.logo-icon { color: var(--accent); }
.logo-text-group { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 1px;
}
.logo-sub {
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.7;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    padding: 4px 0;
    transition: opacity var(--transition-fast);
}
.nav-link:hover { opacity: 0.7; }
.nav-link-cta {
    background: var(--accent);
    color: white !important;
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
}
.nav-link-cta:hover { opacity: 0.9; background: var(--accent-dark); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; z-index: 1001; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: currentColor; border-radius: 2px; transition: all var(--transition-base); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    overflow: hidden;
    color: white;
}
.hero-bg {
    position: absolute;
    inset: 0;
}
.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,0.92) 0%, rgba(26,26,46,0.75) 50%, rgba(26,26,46,0.6) 100%);
}

.hero-split {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 620px;
    flex: 1;
}

.hero-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex-shrink: 0;
}

.hero-stat-card {
    background: rgba(255,255,255,0.07);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 32px 40px;
    text-align: center;
    min-width: 200px;
    transition: all var(--transition-base);
}
.hero-stat-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(196, 92, 44, 0.4);
    transform: translateY(-4px);
}

.hero-stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
    color: var(--accent-light);
    margin-bottom: 8px;
}

.hero-stat-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    line-height: 1.4;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(196, 92, 44, 0.2);
    border: 1px solid rgba(196, 92, 44, 0.3);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 24px;
}

.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 20px;
}
.title-accent { color: var(--accent-light); }

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    max-width: 550px;
    margin-bottom: 32px;
    line-height: 1.7;
}
.hero-subtitle strong { color: white; font-weight: 600; }

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-highlights {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.highlight {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}
.highlight svg { color: var(--accent-light); flex-shrink: 0; }

/* Scroll indicator */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}
.scroll-wheel {
    width: 3px;
    height: 8px;
    background: rgba(255,255,255,0.5);
    border-radius: 3px;
    animation: scrollWheel 1.5s ease-in-out infinite;
}
@keyframes scrollWheel {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(12px); }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}
.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
}
.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(196, 92, 44, 0.3);
}
.btn-outline-light {
    background: transparent;
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
}
.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ===== Section Styles ===== */
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 12px;
}
.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    color: var(--text-primary);
}
.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto;
}

/* ===== Services ===== */
.services { padding: 100px 0; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border);
}

.service-img-wrapper {
    position: relative;
    height: 200px;
    overflow: hidden;
}
.service-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.service-card:hover .service-img { transform: scale(1.05); }
.service-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(0,0,0,0.4) 0%, transparent 50%);
}
.service-icon-badge {
    position: absolute;
    bottom: 12px;
    left: 12px;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}
.service-badge-water { background: var(--blue); }
.service-badge-heat { background: var(--orange); }
.service-badge-gas { background: var(--green); }

.service-body { padding: 24px; }
.service-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.service-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 16px;
    line-height: 1.6;
}
.service-list { list-style: none; margin-bottom: 20px; }
.service-list li {
    font-size: 0.83rem;
    color: var(--text-secondary);
    padding: 4px 0 4px 18px;
    position: relative;
}
.service-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    transform: translateY(-50%);
}
.service-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent);
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    width: 100%;
    transition: gap var(--transition-base);
}
.service-cta:hover { gap: 10px; }

/* ===== Subcontract Banner ===== */
.subcontract-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 28px 32px;
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    color: white;
}
.subcontract-content {
    display: flex;
    align-items: center;
    gap: 16px;
}
.subcontract-icon {
    flex-shrink: 0;
    width: 48px; height: 48px;
    background: rgba(196, 92, 44, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
}
.subcontract-banner h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
}
.subcontract-banner p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

/* ===== Projects ===== */
.projects {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 40px;
    transition: box-shadow var(--transition-base);
}
.project-card:last-child { margin-bottom: 0; }
.project-card:hover { box-shadow: var(--shadow-lg); }
.project-card-reverse .project-gallery { order: 2; }
.project-card-reverse .project-details { order: 1; }

.project-gallery { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.project-main-img {
    border-radius: var(--radius-md);
    overflow: hidden;
    flex: 1;
}
.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 250px;
    border-radius: var(--radius-md);
    transition: transform var(--transition-slow);
}
.project-card:hover .project-img { transform: scale(1.02); }

.project-thumb-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.project-thumb {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    transition: transform var(--transition-base);
}
.project-thumb:hover { transform: scale(1.03); }

.project-details { padding: 32px 32px 32px 8px; }
.project-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.project-tag {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 10px;
    background: var(--accent-bg);
    color: var(--accent);
    border-radius: 100px;
}
.project-duration {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-left: auto;
}

.project-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}

.project-description { margin-bottom: 24px; }
.project-description p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}
.project-description h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    margin-top: 16px;
}
.project-description ul {
    list-style: none;
    margin-bottom: 8px;
}
.project-description ul li {
    font-size: 0.83rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 3px 0 3px 16px;
    position: relative;
}
.project-description ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 10px;
    width: 5px; height: 5px;
    background: var(--accent);
    border-radius: 50%;
}
.project-description ul li strong { color: var(--text-primary); }

.project-stats-row {
    display: flex;
    gap: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}
.project-stat { text-align: center; }
.project-stat strong {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent);
}
.project-stat span {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== About ===== */
.about { padding: 100px 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
    align-items: center;
}
.about-visual { position: relative; }
.about-image-wrapper {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.about-img {
    width: 100%;
    height: auto;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.about-float-card {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-md);
    animation: floatCard 4s ease-in-out infinite;
}
.about-float-1 { top: 8%; right: -30px; animation-delay: 0s; }
.about-float-2 { bottom: 8%; left: -30px; animation-delay: 2s; }
@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.float-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.float-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.3;
}

.about-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}
.about-features { display: flex; flex-direction: column; gap: 20px; }
.feature { display: flex; gap: 14px; }
.feature-icon {
    flex-shrink: 0;
    width: 44px; height: 44px;
    background: var(--accent-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}
.feature-text h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 2px;
}
.feature-text p {
    font-size: 0.83rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== Stats ===== */
.stats {
    padding: 80px 0;
    background: var(--bg-dark);
    color: white;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-card {
    text-align: center;
    padding: 32px 20px;
}
.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent-light);
    display: inline;
    line-height: 1;
}
.stat-suffix {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-light);
    display: inline;
}
.stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.75);
    margin-top: 6px;
}

/* ===== Process ===== */
.process { padding: 100px 0; }
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.process-step {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
}
.process-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.step-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.3;
    margin-bottom: 12px;
}
.step-icon {
    width: 56px; height: 56px;
    margin: 0 auto 16px;
    background: var(--accent-bg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}
.process-step h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.process-step p {
    font-size: 0.83rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== CTA ===== */
.cta-section {
    padding: 120px 0;
    position: relative;
    color: white;
    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: rgba(26,26,46,0.88);
}
.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
}
.cta-content h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}
.cta-content p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.7);
    max-width: 500px;
    margin: 0 auto 32px;
}
.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Contact ===== */
.contact { padding: 100px 0; background: var(--bg-secondary); }
.contact-cards-centered {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 700px;
    margin: 0 auto;
}
.contact-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}
.contact-card:hover {
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}
.contact-card-icon {
    flex-shrink: 0;
    width: 44px; height: 44px;
    background: var(--accent-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}
.contact-card h4 {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 2px;
}
.contact-card a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}
.contact-card a:hover { color: var(--accent); }
.contact-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* ===== Contact Map ===== */
.contact-map {
    margin-top: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.contact-map iframe {
    width: 100%;
    display: block;
}

/* ===== Footer ===== */
.footer {
    padding: 56px 0 28px;
    background: var(--bg-dark);
    color: var(--text-on-dark);
}
.footer .nav-logo { color: white; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 36px;
    margin-bottom: 40px;
}
.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-on-dark-secondary);
    margin-top: 14px;
    line-height: 1.7;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.footer-links a, .footer-links p {
    font-size: 0.83rem;
    color: var(--text-on-dark-secondary);
    transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--accent-light); }
/* Impressum */
.impressum {
    padding: 24px 0;
    margin-top: 32px;
    border-top: 1px solid var(--border-dark);
}
.impressum h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.impressum p {
    font-size: 0.8rem;
    color: var(--text-on-dark-secondary);
    line-height: 1.8;
}
.impressum a {
    color: var(--text-on-dark-secondary);
    transition: color var(--transition-fast);
}
.impressum a:hover { color: var(--accent-light); }

.footer-bottom {
    text-align: center;
    padding-top: 28px;
    border-top: 1px solid var(--border-dark);
}
.footer-bottom p { font-size: 0.78rem; color: rgba(255,255,255,0.5); }
.footer-bottom a {
    color: rgba(255,255,255,0.5);
    text-decoration: underline;
    transition: color var(--transition-fast);
}
.footer-bottom a:hover { color: var(--accent-light); }

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 44px; height: 44px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent-dark); transform: translateY(-3px); }

/* ===== Animations ===== */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate="fade-right"] { transform: translateX(-24px); }
[data-animate="fade-left"] { transform: translateX(24px); }
[data-animate].animated { opacity: 1; transform: translate(0, 0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-split { flex-direction: column; gap: 40px; text-align: center; }
    .hero-content { max-width: 600px; }
    .hero-stats { flex-direction: row; gap: 16px; }
    .hero-stat-card { padding: 24px 28px; min-width: 160px; }
    .hero-stat-number { font-size: 3rem; }
    .hero-actions { justify-content: center; }
    .hero-highlights { justify-content: center; }
    .services-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-visual { max-width: 400px; margin: 0 auto; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .project-card { grid-template-columns: 1fr; }
    .project-card-reverse .project-gallery { order: unset; }
    .project-card-reverse .project-details { order: unset; }
    .project-details { padding: 24px; }
    .subcontract-banner { flex-direction: column; text-align: center; }
    .subcontract-content { flex-direction: column; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        inset: 0;
        background: rgba(26, 26, 46, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        color: white;
    }
    .nav-links.active { opacity: 1; visibility: visible; }
    .nav-links .nav-link { font-size: 1.2rem; color: white; }
    .nav-toggle { display: flex; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0; }
    .stat-card { padding: 24px 16px; }
    .stat-number { font-size: 2rem; }
    .process-steps { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .hero-highlights { flex-direction: column; gap: 10px; }
    .project-thumb-grid { grid-template-columns: 1fr 1fr; }
    .project-stats-row { flex-wrap: wrap; gap: 16px; }
}

@media (max-width: 480px) {
    .hero { padding: 100px 16px 60px; }
    .container { padding: 0 16px; }
    .hero-actions { flex-direction: column; }
    .hero-stats { flex-direction: column; align-items: center; }
    .hero-stat-card { min-width: 180px; padding: 20px 24px; }
    .hero-stat-number { font-size: 2.5rem; }
    .btn { width: 100%; justify-content: center; }
    .about-float-card { display: none; }
    .contact-cards-centered { grid-template-columns: 1fr; }
    .project-gallery { padding: 16px; }
}

/* ===== Language Switcher ===== */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
}
.lang-switcher-mobile {
    display: none;
    margin-right: 12px;
}
.lang-divider {
    font-size: 0.75rem;
    opacity: 0.4;
    user-select: none;
}
.lang-btn {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all var(--transition-fast);
    opacity: 0.5;
    cursor: pointer;
    background: none;
    border: none;
    color: inherit;
    font-family: inherit;
}
.lang-btn:hover { opacity: 0.8; }
.lang-btn.active {
    opacity: 1;
    background: rgba(196, 92, 44, 0.15);
    color: var(--accent);
}
.navbar:not(.scrolled) .lang-btn.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

@media (max-width: 768px) {
    .lang-switcher:not(.lang-switcher-mobile) { display: none; }
    .lang-switcher-mobile { display: flex; }
}

/* ===== Selection & Scrollbar ===== */
::selection { background: rgba(196, 92, 44, 0.2); color: var(--text-primary); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }