/* ================================================================
   OORUN — Modern static redesign
   Vanilla CSS. Brand accent kept (gold #d2b356).
   ================================================================ */

/* ----------------------------------------------------------------
   Design tokens
----------------------------------------------------------------- */
:root {
    --gold: #d2b356;
    --gold-deep: #b8994a;
    --gold-soft: rgba(210, 179, 86, 0.12);

    --ink: #14161b;
    --ink-2: #1c1f26;
    --slate: #3a3f4b;
    --muted: #6b7280;
    --line: #e7e7e2;

    --bg: #ffffff;
    --bg-alt: #f7f6f2;
    --bg-dark: #14161b;

    --maxw: 1160px;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 10px 40px -12px rgba(20, 22, 27, 0.18);
    --shadow-lg: 0 30px 60px -20px rgba(20, 22, 27, 0.28);

    --ease: cubic-bezier(0.22, 1, 0.36, 1);

    --font-head: "Sora", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    color: var(--slate);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--gold-deep); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: var(--gold); }

h1, h2, h3, h4 { font-family: var(--font-head); color: var(--ink); line-height: 1.12; font-weight: 700; letter-spacing: -0.02em; }

::selection { background: var(--gold); color: #fff; }

/* ----------------------------------------------------------------
   Layout helpers
----------------------------------------------------------------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.section { padding: clamp(72px, 10vw, 130px) 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--bg-dark); color: #c9cbd1; }

.eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold-deep);
    margin-bottom: 18px;
}
.section--dark .eyebrow { color: var(--gold); }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-title { font-size: clamp(28px, 4vw, 42px); }
.section--dark .section-title { color: #fff; }
.section-lead { margin-top: 18px; font-size: 18px; color: var(--muted); }
.section--dark .section-lead { color: #9aa0ab; }

.title-rule { display: block; width: 46px; height: 4px; border-radius: 4px; background: var(--gold); margin-top: 22px; }
.center .title-rule { margin-left: auto; margin-right: auto; }

/* ----------------------------------------------------------------
   Buttons
----------------------------------------------------------------- */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--font-body);
    font-size: 15px; font-weight: 600;
    padding: 15px 30px;
    border-radius: 100px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 17px; height: 17px; }

.btn-primary { background: var(--gold); color: #fff; box-shadow: 0 12px 26px -12px rgba(210, 179, 86, 0.8); }
.btn-primary:hover { background: var(--gold-deep); color: #fff; box-shadow: 0 16px 32px -12px rgba(210, 179, 86, 0.9); }

.btn-ghost { background: transparent; color: var(--ink); border-color: rgba(20, 22, 27, 0.2); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-deep); }

.btn-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.4); }
.btn-light:hover { border-color: #fff; color: #fff; background: rgba(255, 255, 255, 0.08); }

/* ----------------------------------------------------------------
   Header / Navigation
----------------------------------------------------------------- */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease), padding 0.35s var(--ease);
    padding: 22px 0;
}
.site-header.solid {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    box-shadow: 0 1px 0 rgba(20, 22, 27, 0.06);
    padding: 14px 0;
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { height: 30px; width: auto; }
.brand .logo-light { display: block; }
.brand .logo-dark { display: none; }
.site-header.solid .brand .logo-light { display: none; }
.site-header.solid .brand .logo-dark { display: block; }

.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
    font-family: var(--font-body);
    font-size: 15px; font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    padding: 8px 14px; border-radius: 8px;
    transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-links a:hover { color: #fff; background: rgba(255, 255, 255, 0.12); }
.site-header.solid .nav-links a { color: var(--slate); }
.site-header.solid .nav-links a:hover { color: var(--gold-deep); background: var(--gold-soft); }

.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta .btn { padding: 11px 22px; font-size: 14px; }
.site-header:not(.solid) .nav-cta .btn-primary { box-shadow: none; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), background 0.3s; }
.site-header.solid .nav-toggle span { background: var(--ink); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----------------------------------------------------------------
   Hero
----------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 140px 0 90px;
    color: #fff;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0; z-index: -2;
    background: url("../images/banner-images/banner-image-2.webp") center/cover no-repeat;
    transform: scale(1.05);
}
.hero::after {
    content: ""; position: absolute; inset: 0; z-index: -1;
    background: linear-gradient(105deg, rgba(15, 17, 21, 0.9) 0%, rgba(15, 17, 21, 0.7) 45%, rgba(15, 17, 21, 0.35) 100%);
}
.hero-inner { max-width: 760px; }
.hero h1 {
    color: #fff;
    font-size: clamp(38px, 6vw, 68px);
    line-height: 1.05;
    letter-spacing: -0.03em;
}
.hero h1 .accent { color: var(--gold); }
.hero-lead {
    margin-top: 26px;
    font-size: clamp(17px, 2vw, 20px);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.82);
    max-width: 620px;
}
.hero-actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 16px; }

.hero-stats {
    margin-top: 64px;
    display: flex; flex-wrap: wrap; gap: 40px 56px;
    padding-top: 34px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.hero-stat .num { font-family: var(--font-head); font-size: 34px; font-weight: 700; color: #fff; }
.hero-stat .label { font-size: 14px; color: rgba(255, 255, 255, 0.65); margin-top: 2px; }

.scroll-hint {
    position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5); font-size: 12px; letter-spacing: 0.15em; text-transform: uppercase;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.scroll-hint .mouse { width: 22px; height: 34px; border: 2px solid rgba(255, 255, 255, 0.4); border-radius: 12px; position: relative; }
.scroll-hint .mouse::after { content: ""; position: absolute; top: 6px; left: 50%; width: 3px; height: 6px; background: rgba(255, 255, 255, 0.6); border-radius: 2px; transform: translateX(-50%); animation: scrollDot 1.6s infinite; }
@keyframes scrollDot { 0% { opacity: 0; transform: translate(-50%, 0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translate(-50%, 10px); } }

/* ----------------------------------------------------------------
   About (Oorun)
----------------------------------------------------------------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start; }
.about-copy p + p { margin-top: 18px; }
.about-copy strong { color: var(--ink); font-weight: 600; }

.pillars { display: grid; gap: 20px; }
.pillar {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 30px; transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.pillar h3 { font-size: 20px; margin-bottom: 10px; display: flex; align-items: center; gap: 12px; }
.pillar h3 .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--gold); flex: none; }
.pillar p { font-size: 15.5px; color: var(--muted); margin: 0; }

/* ----------------------------------------------------------------
   Expertise / services
----------------------------------------------------------------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 40px 34px; position: relative; overflow: hidden;
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-deep));
    transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card:hover::before { transform: scaleX(1); }
.card-icon {
    width: 58px; height: 58px; border-radius: 14px;
    background: var(--gold-soft); color: var(--gold-deep);
    display: grid; place-items: center; margin-bottom: 24px;
}
.card-icon svg { width: 28px; height: 28px; }
.card h3 { font-size: 20px; margin-bottom: 12px; }
.card p { font-size: 15.5px; color: var(--muted); }

/* ----------------------------------------------------------------
   Implantations / gallery
----------------------------------------------------------------- */
.impl-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: center; }
.cities { list-style: none; display: grid; gap: 4px; }
.cities li {
    display: flex; align-items: baseline; gap: 16px;
    padding: 18px 0; border-bottom: 1px solid var(--line);
}
.cities li:last-child { border-bottom: 0; }
.cities .city { font-family: var(--font-head); font-size: 24px; font-weight: 600; color: var(--ink); }
.cities .country { font-size: 14px; color: var(--muted); margin-left: auto; }

.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.gallery figure { position: relative; border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 4 / 3; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.gallery figure:hover img { transform: scale(1.07); }
.gallery figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,17,21,0.35), transparent 55%); opacity: 0; transition: opacity 0.4s var(--ease); }
.gallery figure:hover::after { opacity: 1; }

/* ----------------------------------------------------------------
   Testimonials
----------------------------------------------------------------- */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.quote {
    background: var(--ink-2); border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius); padding: 34px; position: relative;
    transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
}
.quote:hover { transform: translateY(-4px); border-color: rgba(210, 179, 86, 0.4); }
.quote .mark { font-family: Georgia, serif; font-size: 60px; line-height: 0.6; color: var(--gold); opacity: 0.5; }
.quote p { color: #d8dae0; font-size: 16.5px; margin: 12px 0 22px; }
.quote footer { font-size: 14px; color: #8b909b; font-weight: 500; }
.quote footer strong { color: #fff; font-weight: 600; }

/* ----------------------------------------------------------------
   Clients
----------------------------------------------------------------- */
.logos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.logos .logo-cell {
    display: grid; place-items: center; padding: 34px 24px;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.logos .logo-cell:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.logos img { max-height: 56px; width: auto; filter: grayscale(1); opacity: 0.6; transition: filter 0.3s var(--ease), opacity 0.3s var(--ease); }
.logos .logo-cell:hover img { filter: grayscale(0); opacity: 1; }

/* ----------------------------------------------------------------
   Contact
----------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.contact-info { position: sticky; top: 110px; }
.info-block { margin-top: 30px; }
.info-block h4 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--gold-deep); margin-bottom: 8px; }
.info-block p { color: var(--slate); font-size: 16px; }
.info-block a { font-weight: 500; }

.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 38px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.field label .req { color: var(--gold-deep); }
.field input, .field textarea {
    width: 100%; font-family: var(--font-body); font-size: 15px; color: var(--ink);
    padding: 13px 15px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
    background: var(--bg-alt); transition: border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus {
    outline: none; border-color: var(--gold); background: #fff;
    box-shadow: 0 0 0 4px var(--gold-soft);
}
.field input::placeholder, .field textarea::placeholder { color: #a3a7b0; }
.form .btn { width: 100%; justify-content: center; margin-top: 8px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 14px; text-align: center; }
.form-status { margin-top: 14px; font-size: 14.5px; text-align: center; display: none; padding: 12px; border-radius: var(--radius-sm); }
.form-status.ok { display: block; background: rgba(34, 160, 90, 0.1); color: #1f7a48; }
.form-status.err { display: block; background: rgba(210, 60, 60, 0.1); color: #b23b3b; }

/* ----------------------------------------------------------------
   Footer
----------------------------------------------------------------- */
.site-footer { background: var(--bg-dark); color: #8b909b; padding: 54px 0 40px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding-bottom: 30px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-top img { height: 28px; }
.footer-nav { display: flex; gap: 22px; list-style: none; flex-wrap: wrap; }
.footer-nav a { color: #a3a7b0; font-size: 14px; font-weight: 500; }
.footer-nav a:hover { color: var(--gold); }
.footer-bottom { padding-top: 26px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13.5px; }
.footer-bottom a { color: #a3a7b0; }
.footer-bottom a:hover { color: var(--gold); }

/* ----------------------------------------------------------------
   Scroll reveal
----------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .hero-bg { transform: none; }
    .scroll-hint .mouse::after { animation: none; }
}

/* ----------------------------------------------------------------
   Responsive
----------------------------------------------------------------- */
@media (max-width: 960px) {
    .about-grid, .impl-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
    .contact-info { position: static; }
    .cards, .quotes, .logos { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
    body { font-size: 16px; }
    .nav-links, .nav-cta .btn { display: none; }
    .nav-toggle { display: flex; }

    .nav-links.mobile-open {
        display: flex; flex-direction: column; align-items: stretch; gap: 4px;
        position: absolute; top: calc(100% + 10px); left: 16px; right: 16px;
        background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
        padding: 14px; box-shadow: var(--shadow-lg);
    }
    .nav-links.mobile-open a { color: var(--slate); padding: 13px 16px; }
    .nav-links.mobile-open a:hover { background: var(--gold-soft); color: var(--gold-deep); }

    .cards, .quotes, .logos, .gallery, .form-row { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding: 130px 0 80px; }
    .hero-stats { gap: 28px 40px; }
    .scroll-hint { display: none; }
    .form { padding: 26px 22px; }
    .section-head { margin-bottom: 40px; }
}