/* =========================================
   exterior.css — Arch Interior Exterior Works
   ========================================= */

:root {
    --ext-dark: #0d0f14;
    --ext-dark2: #12151c;
    --ext-card-bg: #ffffff;
    --ext-orange: #e47144;
    --ext-orange-dim: rgba(228,113,68,0.15);
    --ext-orange-glow: rgba(228,113,68,0.35);
    --ext-text: #1a1a24;
    --ext-muted: #6b6b7b;
    --ext-border: rgba(228,113,68,0.18);
    --ext-glass: rgba(255,255,255,0.06);
    --font: 'Roboto', sans-serif;
    --transition: all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: #f6f7fa;
    color: var(--ext-text);
    overflow-x: hidden;
}

/* ── NAVBAR ── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(13,15,20,0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(228,113,68,0.12);
    transition: var(--transition);
}
.nav-container {
    max-width: 1300px; margin: 0 auto;
    padding: 0 30px;
    display: flex; align-items: center; justify-content: space-between;
    height: 72px;
}
.logo img { height: 44px; object-fit: contain; }

.nav-links ul {
    list-style: none;
    display: flex; align-items: center; gap: 6px;
}
.nav-links ul li { position: relative; }
.nav-link {
    display: block; padding: 8px 14px;
    color: rgba(255,255,255,0.82);
    text-decoration: none; font-size: 0.88rem; font-weight: 500;
    letter-spacing: 0.04em; text-transform: uppercase;
    border-radius: 6px;
    transition: color 0.25s ease, background 0.25s ease;
}
.nav-link:hover { color: var(--ext-orange); background: var(--ext-orange-dim); }
.nav-ext-active { color: var(--ext-orange) !important; }
.nav-cta {
    background: var(--ext-orange); color: #fff !important;
    border-radius: 8px; padding: 8px 18px;
}
.nav-cta:hover { background: #c8612d; }

/* Dropdown */
.nav-dropdown { position: relative; }
.dropdown-arrow { font-size: 0.7rem; opacity: 0.7; }
.dropdown-menu {
    display: none;
    position: absolute; top: calc(100% + 8px); left: 0;
    background: rgba(13,15,20,0.97);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(228,113,68,0.15);
    border-radius: 10px;
    padding: 8px 0; min-width: 170px;
    box-shadow: 0 16px 40px rgba(0,0,0,0.5);
    list-style: none;
    animation: dropIn 0.2s ease;
}
@keyframes dropIn { from { opacity:0; transform:translateY(-6px); } to { opacity:1; transform:translateY(0); } }
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu li a {
    display: block; padding: 10px 20px;
    color: rgba(255,255,255,0.78); font-size: 0.87rem;
    text-decoration: none; transition: color 0.2s, background 0.2s;
}
.dropdown-menu li a:hover { color: var(--ext-orange); background: var(--ext-orange-dim); }

/* Mobile menu */
.mobile-menu-btn {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 6px;
}
.mobile-menu-btn span {
    display: block; width: 24px; height: 2px;
    background: rgba(255,255,255,0.85); border-radius: 2px;
    transition: var(--transition);
}

/* ── HERO ── */
.ext-hero {
    position: relative; height: 100vh; min-height: 620px;
    display: flex; align-items: center; overflow: hidden;
}
.ext-hero-bg {
    position: absolute; inset: -60px;
    background: linear-gradient(135deg, #0d0f14 0%, #1a2030 40%, #0d1520 100%);
    background-image:
        radial-gradient(ellipse at 70% 40%, rgba(228,113,68,0.1) 0%, transparent 55%),
        linear-gradient(135deg, #0d0f14 0%, #1a2030 100%);
    will-change: transform;
}
/* Geometric grid overlay */
.ext-hero-bg::after {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(228,113,68,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(228,113,68,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}
.ext-hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to right, rgba(13,15,20,0.85) 40%, transparent 100%);
    pointer-events: none;
}
.ext-hero-content {
    position: relative; z-index: 2;
    max-width: 1300px; margin: 0 auto; padding: 0 40px;
    padding-top: 72px;
}
.ext-hero-tag {
    display: inline-block;
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--ext-orange);
    background: var(--ext-orange-dim);
    border: 1px solid var(--ext-orange-glow);
    padding: 6px 16px; border-radius: 100px;
    margin-bottom: 24px;
    animation: fadeUp 0.7s 0.1s both;
}
.ext-hero-title {
    font-family: 'Bebas Neue', 'Roboto', sans-serif;
    font-size: clamp(3.5rem, 8vw, 7.5rem);
    line-height: 0.92; letter-spacing: -0.01em;
    color: #ffffff;
    animation: fadeUp 0.7s 0.25s both;
}
.accent-word { color: var(--ext-orange); }
.ext-hero-sub {
    max-width: 520px; margin-top: 24px;
    font-size: 1.05rem; line-height: 1.7;
    color: rgba(255,255,255,0.62);
    animation: fadeUp 0.7s 0.4s both;
}
.ext-hero-cta {
    display: inline-flex; align-items: center; gap: 10px;
    margin-top: 36px;
    padding: 14px 32px;
    background: var(--ext-orange);
    color: #fff; text-decoration: none;
    font-size: 0.9rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
    border-radius: 50px;
    box-shadow: 0 8px 30px var(--ext-orange-glow);
    transition: var(--transition);
    animation: fadeUp 0.7s 0.55s both;
}
.ext-hero-cta:hover { background: #c8612d; transform: translateY(-2px); box-shadow: 0 12px 40px rgba(228,113,68,0.5); }
.ext-hero-cta .material-symbols-outlined { font-size: 18px; animation: bounce 1.6s infinite; }
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(4px)} }

/* Stats pills */
.ext-hero-stats {
    position: absolute; bottom: 60px; right: 80px;
    display: flex; flex-direction: column; gap: 12px;
    z-index: 2;
    animation: fadeLeft 0.8s 0.7s both;
}
.stat-pill {
    display: flex; align-items: center; gap: 12px;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(228,113,68,0.2);
    padding: 10px 20px; border-radius: 50px;
    transition: var(--transition);
}
.stat-pill:hover { background: var(--ext-orange-dim); border-color: var(--ext-orange); }
.stat-num { font-size: 1.25rem; font-weight: 700; color: var(--ext-orange); }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); letter-spacing: 0.04em; }

/* Scroll indicator */
.hero-scroll-indicator {
    position: absolute; bottom: 50px; left: 50%;
    transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    z-index: 2; color: rgba(255,255,255,0.4);
    font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase;
    animation: fadeUp 1s 1s both;
}
.scroll-line {
    width: 1px; height: 48px;
    background: linear-gradient(to bottom, var(--ext-orange), transparent);
    animation: scrollPulse 1.8s infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:0.3} 50%{opacity:1} }
@keyframes fadeUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeLeft { from{opacity:0;transform:translateX(30px)} to{opacity:1;transform:translateX(0)} }

/* ── ABOUT STRIP ── */
.ext-about-strip {
    background: #fff;
    border-top: 1px solid rgba(228,113,68,0.12);
    border-bottom: 1px solid rgba(228,113,68,0.12);
    padding: 72px 5%;
}
.strip-inner {
    max-width: 1300px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
}
.strip-text h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
    font-weight: 800; line-height: 1.25;
    color: var(--ext-text); margin-bottom: 16px;
}
.strip-text p { font-size: 1rem; line-height: 1.75; color: var(--ext-muted); }
.strip-icons {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.strip-icon-item {
    display: flex; flex-direction: column; align-items: center;
    gap: 10px; padding: 24px 16px;
    background: #f8f8fb;
    border: 1px solid rgba(228,113,68,0.1);
    border-radius: 14px; text-align: center;
    transition: var(--transition);
    cursor: default;
}
.strip-icon-item:hover {
    background: var(--ext-orange-dim);
    border-color: var(--ext-orange);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--ext-orange-dim);
}
.strip-icon-item .material-symbols-outlined { font-size: 32px; color: var(--ext-orange); }
.strip-icon-item p { font-size: 0.82rem; font-weight: 600; color: var(--ext-text); letter-spacing: 0.04em; }

/* ── PROJECTS SECTION ── */
.ext-projects {
    padding: 100px 5%;
    background: #f6f7fa;
}
.ext-projects-header {
    max-width: 1300px; margin: 0 auto 70px;
    text-align: center;
}
.section-eyebrow {
    display: inline-block;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.22em;
    text-transform: uppercase; color: var(--ext-orange);
    margin-bottom: 14px;
}
.ext-projects-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800; color: var(--ext-text);
    margin-bottom: 12px;
}
.ext-projects-header p { font-size: 1rem; color: var(--ext-muted); }
.header-line {
    display: flex; align-items: center; justify-content: center;
    gap: 10px; margin-top: 24px;
}
.header-line span { flex: 1; max-width: 100px; height: 1px; background: var(--ext-border); }
.header-line i { width: 8px; height: 8px; background: var(--ext-orange); border-radius: 50%; display: block; }

/* ── PROJECT CARDS ── */
.ext-projects-grid { max-width: 1300px; margin: 0 auto; display: flex; flex-direction: column; gap: 0; }

.ext-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 520px;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.07);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 40px;
    box-shadow: 0 4px 30px rgba(0,0,0,0.06);
    transition: box-shadow 0.4s ease, transform 0.4s ease;
    opacity: 0;
    transform: translateY(40px);
}
.ext-card.animated {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease, box-shadow 0.4s ease;
}
.ext-card:hover {
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
    transform: translateY(-4px);
}
.ext-card.reverse { direction: rtl; }
.ext-card.reverse > * { direction: ltr; }

/* Card Media Side */
.ext-card-media {
    position: relative;
    background: var(--ext-dark2);
    overflow: hidden;
}
.ext-card-number {
    position: absolute; top: 20px; left: 20px; z-index: 4;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 4rem; line-height: 1;
    color: rgba(228,113,68,0.18);
    pointer-events: none;
    user-select: none;
}
.ext-card-images { width: 100%; height: 100%; display: flex; flex-direction: column; gap: 3px; }
.ext-img-main {
    flex: 1; position: relative; overflow: hidden;
    cursor: pointer; min-height: 0;
}
.ext-img-main img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s ease;
    display: block;
}
.ext-img-main:hover img { transform: scale(1.05); }
.ext-img-zoom {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.4);
    opacity: 0; transition: opacity 0.3s ease;
    color: #fff;
}
.ext-img-zoom .material-symbols-outlined { font-size: 32px; }
.ext-img-main:hover .ext-img-zoom,
.ext-thumb:hover .ext-img-zoom { opacity: 1; }

.ext-img-thumbs {
    display: flex; gap: 3px; height: 110px; flex-shrink: 0;
}
.ext-thumb {
    flex: 1; position: relative; overflow: hidden; cursor: pointer;
}
.ext-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.4s ease;
    display: block;
}
.ext-thumb:hover img { transform: scale(1.08); }
.ext-thumb.empty-thumb {
    background: #1a1e26;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.2); cursor: default;
}
.ext-thumb.empty-thumb .material-symbols-outlined { font-size: 28px; }

/* Card Info Side */
.ext-card-info {
    padding: 48px 44px;
    display: flex; flex-direction: column; justify-content: center;
    gap: 18px;
}
.ext-card-tag {
    display: inline-block;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.15em;
    text-transform: uppercase; color: var(--ext-orange);
    background: var(--ext-orange-dim);
    border: 1px solid var(--ext-orange-glow);
    padding: 5px 14px; border-radius: 100px;
    width: fit-content;
}
.ext-card-info h3 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    font-weight: 800; color: var(--ext-text);
    line-height: 1.15;
}
.ext-card-info h3::after {
    content: ''; display: block;
    width: 44px; height: 3px;
    background: var(--ext-orange);
    border-radius: 2px; margin-top: 12px;
    transition: width 0.4s ease;
}
.ext-card:hover .ext-card-info h3::after { width: 80px; }

/* placeholder */
.content-placeholder {
    display: flex; align-items: center; gap: 10px;
    color: #aaa; font-style: italic; font-size: 0.9rem;
    padding: 14px 18px;
    background: #f8f8fb;
    border: 1px dashed #ddd;
    border-radius: 10px;
}
.content-placeholder .material-symbols-outlined { color: var(--ext-orange); font-size: 20px; }

.ext-card-meta {
    display: flex; flex-wrap: wrap; gap: 14px;
    margin-top: 4px;
}
.ext-card-meta span {
    display: flex; align-items: center; gap: 5px;
    font-size: 0.83rem; color: var(--ext-muted); font-weight: 500;
}
.ext-card-meta .material-symbols-outlined { font-size: 17px; color: var(--ext-orange); }

/* ── CTA STRIP ── */
.ext-cta-strip {
    background: linear-gradient(135deg, var(--ext-dark) 0%, #1e1220 100%);
    padding: 80px 5%;
    position: relative; overflow: hidden;
}
.ext-cta-strip::before {
    content: '';
    position: absolute; top: -80px; right: -80px;
    width: 350px; height: 350px;
    background: radial-gradient(circle, rgba(228,113,68,0.15) 0%, transparent 70%);
}
.cta-strip-inner {
    max-width: 1300px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    gap: 40px; position: relative; z-index: 1;
}
.cta-strip-text h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 10px; }
.cta-strip-text p { font-size: 1rem; color: rgba(255,255,255,0.55); }
.cta-strip-btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 16px 36px;
    background: var(--ext-orange); color: #fff;
    text-decoration: none; font-weight: 700; font-size: 0.9rem;
    letter-spacing: 0.06em; text-transform: uppercase;
    border-radius: 50px; white-space: nowrap;
    box-shadow: 0 8px 30px var(--ext-orange-glow);
    transition: var(--transition);
    flex-shrink: 0;
}
.cta-strip-btn:hover { background: #c8612d; transform: translateY(-2px) scale(1.02); }
.cta-strip-btn .material-symbols-outlined { transition: transform 0.3s ease; }
.cta-strip-btn:hover .material-symbols-outlined { transform: translateX(4px); }

/* ── FOOTER ── */
.ext-footer { background: var(--ext-dark); padding: 60px 5% 0; }
.ext-footer-inner {
    max-width: 1300px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}
.ext-footer-brand img { height: 48px; object-fit: contain; margin-bottom: 16px; }
.ext-footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.45); line-height: 1.7; }
.ext-social { display: flex; gap: 14px; margin-top: 20px; }
.ext-social a {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.55);
    text-decoration: none; font-size: 14px;
    transition: var(--transition);
}
.ext-social a:hover { background: var(--ext-orange); border-color: var(--ext-orange); color: #fff; }
.ext-footer-links h4 { color: rgba(255,255,255,0.85); font-size: 0.9rem; font-weight: 600; margin-bottom: 18px; letter-spacing: 0.08em; text-transform: uppercase; }
.ext-footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.ext-footer-links ul li a { color: rgba(255,255,255,0.45); text-decoration: none; font-size: 0.88rem; transition: color 0.25s ease; }
.ext-footer-links ul li a:hover { color: var(--ext-orange); }
.ext-footer-bottom { text-align: center; padding: 20px; }
.ext-footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.25); }

/* ── LIGHTBOX ── */
.ext-lightbox {
    position: fixed; inset: 0; z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity 0.3s ease;
}
.ext-lightbox.active { opacity: 1; pointer-events: all; }
.lb-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.92); }
.lb-container {
    position: relative; z-index: 1;
    width: min(90vw, 1100px);
    display: flex; align-items: center; gap: 16px;
}
.lb-img-wrap {
    flex: 1; position: relative;
    max-height: 85vh; overflow: hidden;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: #111;
}
.lb-img {
    max-width: 100%; max-height: 85vh;
    object-fit: contain; border-radius: 8px;
    transition: opacity 0.3s ease;
    display: block;
}
.lb-img.loading { opacity: 0; }
.lb-spinner {
    position: absolute; inset: 0;
    display: none; align-items: center; justify-content: center;
    color: var(--ext-orange);
}
.lb-spinner.show { display: flex; }
.spin { animation: spinAnim 0.9s linear infinite; }
@keyframes spinAnim { to { transform: rotate(360deg); } }

.lb-close {
    position: absolute; top: -50px; right: 0;
    background: rgba(255,255,255,0.1); border: none; border-radius: 50%;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; cursor: pointer; transition: background 0.2s;
}
.lb-close:hover { background: var(--ext-orange); }
.lb-prev, .lb-next {
    background: rgba(255,255,255,0.08);
    border: none; border-radius: 50%;
    width: 50px; height: 50px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    color: #fff; cursor: pointer; transition: background 0.2s, transform 0.2s;
}
.lb-prev:hover, .lb-next:hover { background: var(--ext-orange); transform: scale(1.1); }
.lb-prev .material-symbols-outlined, .lb-next .material-symbols-outlined { font-size: 28px; }
.lb-counter {
    position: absolute; bottom: -36px; left: 50%; transform: translateX(-50%);
    color: rgba(255,255,255,0.45); font-size: 0.82rem; letter-spacing: 0.08em;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .ext-card { grid-template-columns: 1fr; min-height: auto; }
    .ext-card.reverse { direction: ltr; }
    .ext-card-media { min-height: 360px; }
    .ext-card-info { padding: 36px 32px; }
    .strip-inner { grid-template-columns: 1fr; gap: 40px; }
    .ext-hero-stats { position: relative; bottom: auto; right: auto; flex-direction: row; flex-wrap: wrap; justify-content: flex-start; margin-top: 36px; }
    .ext-footer-inner { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
    .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; background: rgba(13,15,20,0.98); padding: 20px; }
    .nav-links.open { display: block; }
    .nav-links ul { flex-direction: column; gap: 4px; }
    .mobile-menu-btn { display: flex; }
    .ext-hero-content { padding: 0 20px; padding-top: 72px; }
    .ext-card-info { padding: 28px 22px; }
    .cta-strip-inner { flex-direction: column; text-align: center; }
    .ext-img-thumbs { height: 80px; }
}