/* ============================================
   OSOIS NETWORK — SHARED STYLESHEET
   ============================================ */

:root {
  --black: #060708;
  --near-black: #0b0d10;
  --panel: #101317;
  --panel-alt: #14181d;
  --line: rgba(255,255,255,0.09);
  --white: #f5f7fa;
  --dim: #a9b0ba;
  --dimmer: #747b85;
  --blue: #2f7bf6;
  --blue-bright: #4c8dff;
  --light-panel: #eef1f5;
  --light-panel-text: #101317;
  font-size: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.eyebrow {
  font-family: 'Rajdhani', 'Inter', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--blue-bright);
  font-weight: 600;
  margin-bottom: 14px;
  display: block;
}

h1, h2, h3, h4 {
  font-family: 'Rajdhani', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 18px;
  line-height: 1.08;
}

h1 { font-size: clamp(2.4rem, 5.6vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.3rem; }

p { color: var(--dim); margin: 0 0 20px; }
.light p { color: #4b5563; }
.light { color: var(--light-panel-text); }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 900px) {
  .container { padding: 0 24px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-bright); transform: translateY(-1px); }
.btn-outline { border-color: rgba(255,255,255,0.35); color: var(--white); background: transparent; }
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.06); }
.light .btn-outline { border-color: rgba(0,0,0,0.3); color: var(--light-panel-text); }
.light .btn-outline:hover { border-color: #000; background: rgba(0,0,0,0.05); }
.btn-link { color: var(--blue-bright); font-family: 'Rajdhani', sans-serif; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.85rem; }
.btn-link:hover { text-decoration: underline; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(6,7,8,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-group { display: flex; align-items: center; gap: 12px; }
.logo-text { font-family: 'Rajdhani', sans-serif; font-weight: 800; font-size: 1.15rem; letter-spacing: 0.08em; line-height: 1; }
.logo-text span { display: block; font-size: 0.58rem; letter-spacing: 0.32em; color: var(--blue-bright); font-weight: 600; margin-top: 2px; }

.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dim);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.active { color: var(--white); border-bottom-color: var(--blue); }

.nav-cta { display: flex; align-items: center; gap: 20px; }
.nav-cta .btn { padding: 11px 22px; font-size: 0.78rem; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--white); display: block; }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-inner { padding: 14px 24px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: saturate(0.85) contrast(1.05);
}
.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(6,7,8,0.96) 0%, rgba(6,7,8,0.72) 38%, rgba(6,7,8,0.25) 62%, rgba(6,7,8,0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
}
.hero-content h1 { max-width: 640px; }
.hero-content h1 .accent { color: var(--blue-bright); }
.hero-content p.lede { max-width: 460px; font-size: 1.05rem; }
.hero-cta { display: flex; gap: 16px; margin-top: 8px; flex-wrap: wrap; }
.hero-tags {
  margin-top: 34px;
  display: flex; gap: 14px; flex-wrap: wrap;
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--dimmer);
}
.hero-tags span:not(:last-child)::after { content: "—"; margin-left: 14px; color: var(--dimmer); }

.hero-side-list {
  position: absolute;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  text-align: right;
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
@media (max-width: 900px) { .hero-side-list { display: none; } }

/* ---------- Sections ---------- */
section { padding: 100px 0; }
.section-tight { padding: 70px 0; }
.dark { background: var(--near-black); }
.darker { background: var(--black); }
.light-section { background: var(--light-panel); color: var(--light-panel-text); }
.light-section p { color: #4b5563; }
.light-section h2, .light-section h3 { color: var(--light-panel-text); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 40px; } }

.media-box { position: relative; overflow: hidden; border-radius: 4px; aspect-ratio: 4/5; }
.media-box.wide { aspect-ratio: 16/9; }
.media-box img { width: 100%; height: 100%; object-fit: cover; }
.media-box .eye-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0.1), rgba(0,0,0,0.75)); }

.tag-row {
  display: flex; gap: 20px; flex-wrap: wrap;
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--dimmer);
  margin-top: 30px;
}
.tag-row span:not(:last-child)::after { content: "—"; margin-left: 20px; }

.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 40px; }
@media (max-width: 900px) { .pillars { grid-template-columns: repeat(2, 1fr); } }
.pillar { border-top: 1px solid var(--line); padding-top: 18px; }
.pillar .icon { font-size: 1.4rem; color: var(--blue-bright); margin-bottom: 12px; display: block; }
.pillar h4 { font-family: 'Rajdhani', sans-serif; font-size: 0.85rem; letter-spacing: 0.08em; margin-bottom: 8px; }
.pillar p { font-size: 0.88rem; margin: 0; }

.stat-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 46px 0;
}
.stat-row .stat { text-align: center; border-left: 1px solid var(--line); padding: 0 16px; }
.stat-row .stat:first-child { border-left: none; }
.stat .num { font-family: 'Rajdhani', sans-serif; font-weight: 700; font-size: clamp(2rem, 4vw, 2.6rem); color: var(--white); }
.stat .num.accent { color: var(--blue-bright); }
.stat .label { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--dimmer); margin-top: 6px; }
@media (max-width: 700px) { .stat-row { grid-template-columns: repeat(2, 1fr); row-gap: 30px; } .stat-row .stat:nth-child(3) { border-left: none; } }

.talent-strip { position: relative; }
.talent-strip-img { width: 100%; aspect-ratio: 21/9; object-fit: cover; filter: grayscale(0.15) brightness(0.55); }
.talent-strip-labels {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end;
  padding: 32px 48px;
  gap: 40px;
}
.talent-strip-labels .role { font-family: 'Rajdhani', sans-serif; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: #fff; }
.talent-strip-labels .role span { display: block; color: var(--dim); font-size: 0.68rem; text-transform: none; letter-spacing: 0; margin-top: 2px; }
.talent-strip-caption { text-align: center; padding: 26px 20px 0; }
.talent-strip-caption h3 { margin-bottom: 6px; }
.talent-strip-caption p { font-size: 0.85rem; }

.difference-block { position: relative; overflow: hidden; }
.difference-bg { position: absolute; inset: 0; background-size: cover; background-position: center; filter: brightness(0.4); }
.difference-content { position: relative; z-index: 2; max-width: 460px; }

/* ---------- Cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); margin-top: 44px; }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .card-grid { grid-template-columns: 1fr; } }
.svc-card { background: var(--panel); padding: 26px 22px; display: flex; flex-direction: column; min-height: 260px; }
.svc-card img { width: 100%; aspect-ratio: 3/4; object-fit: cover; margin-bottom: 16px; border-radius: 2px; filter: grayscale(0.2); }
.svc-card h4 { font-family: 'Rajdhani', sans-serif; font-size: 0.95rem; letter-spacing: 0.06em; margin-bottom: 10px; }
.svc-card ul { list-style: none; padding: 0; margin: 0 0 16px; font-size: 0.82rem; color: var(--dim); }
.svc-card ul li { padding: 3px 0; }
.svc-card .learn { margin-top: auto; font-size: 0.72rem; }

/* ---------- Featured work / carousel ---------- */
.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; margin-top: 20px; }
@media (max-width: 800px) { .work-grid { grid-template-columns: 1fr; } }
.work-item { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.work-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.work-item:hover img { transform: scale(1.06); }
.work-item .caption { position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 20px; background: linear-gradient(0deg, rgba(0,0,0,0.85), transparent); }
.work-item .caption h4 { font-family: 'Rajdhani', sans-serif; font-size: 0.85rem; letter-spacing: 0.06em; margin-bottom: 4px; }
.work-item .caption a { font-size: 0.68rem; color: var(--blue-bright); text-transform: uppercase; letter-spacing: 0.1em; }
.carousel-arrows { display: flex; justify-content: space-between; margin-top: -220px; padding: 0 12px; position: relative; z-index: 5; pointer-events: none; }
.carousel-arrows button { pointer-events: all; background: rgba(0,0,0,0.55); border: 1px solid rgba(255,255,255,0.3); color: #fff; width: 40px; height: 40px; border-radius: 50%; cursor: pointer; font-size: 1rem; }
@media (max-width: 800px) { .carousel-arrows { display: none; } }

/* ---------- How it works ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.steps.steps-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) { .steps, .steps.steps-5 { grid-template-columns: repeat(2, 1fr); } }
.step { padding: 34px 26px; border-left: 1px solid var(--line); }
.step:first-child { border-left: none; }
@media (max-width: 900px) { .step:nth-child(odd) { border-left: none; } }
.step .idx { font-family: 'Rajdhani', sans-serif; font-weight: 700; font-size: 1.8rem; color: rgba(255,255,255,0.25); margin-bottom: 10px; }
.step h4 { font-family: 'Rajdhani', sans-serif; font-size: 0.9rem; letter-spacing: 0.08em; margin-bottom: 6px; }
.step p { font-size: 0.85rem; margin: 0; }

/* ---------- FAQ ---------- */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 34px; }
@media (max-width: 800px) { .faq-grid { grid-template-columns: 1fr; } }
.faq-item { border: 1px solid var(--line); border-radius: 3px; overflow: hidden; }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 22px; cursor: pointer; font-family: 'Rajdhani', sans-serif;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.02em;
  background: var(--panel);
}
.faq-q .plus { font-size: 1.3rem; color: var(--blue-bright); transition: transform 0.25s ease; }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; background: var(--panel-alt); }
.faq-item.open .faq-a { max-height: 200px; }
.faq-a p { padding: 0 22px 20px; margin: 0; font-size: 0.88rem; }

/* ---------- Contact form ---------- */
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; gap: 14px; }
@media (max-width: 600px) { .form-row { flex-direction: column; } }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--white);
  padding: 15px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  border-radius: 3px;
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--blue); }
.form-note { font-size: 0.78rem; color: var(--dimmer); }
.form-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form-status { font-size: 0.85rem; color: var(--blue-bright); }

.contact-methods { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; margin-top: 40px; }
@media (max-width: 900px) { .contact-methods { grid-template-columns: repeat(2, 1fr); } }
.contact-method .icon { color: var(--blue-bright); font-size: 1.3rem; margin-bottom: 12px; display: block; }
.contact-method h4 { font-family: 'Rajdhani', sans-serif; font-size: 0.85rem; letter-spacing: 0.08em; margin-bottom: 6px; }
.contact-method p { font-size: 0.85rem; margin: 0; }
.contact-method .social-icons { display: flex; gap: 12px; margin-top: 6px; }
.contact-method .social-icons a { width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; }

.visit-block { position: relative; overflow: hidden; min-height: 320px; display: flex; align-items: center; }
.visit-bg { position: absolute; inset: 0; background-size: cover; background-position: center; filter: brightness(0.55) saturate(0.6); }
.visit-content { position: relative; z-index: 2; }
.visit-script { position: absolute; right: 60px; bottom: 40px; font-family: 'Georgia', serif; font-style: italic; font-size: 1.4rem; color: rgba(255,255,255,0.85); z-index: 2; text-align: right; }
@media (max-width: 700px) { .visit-script { display: none; } }

/* ---------- Founders / people ---------- */
.founders-media { position: relative; aspect-ratio: 16/9; overflow: hidden; border-radius: 4px; }
.founders-media img { width: 100%; height: 100%; object-fit: cover; }
.founder-tag { position: absolute; bottom: 18px; font-family: 'Rajdhani', sans-serif; letter-spacing: 0.14em; font-size: 0.72rem; text-transform: uppercase; color: rgba(255,255,255,0.75); }

/* ---------- Numbered feature rows (homepage 01-04) ---------- */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; min-height: 260px; }
@media (max-width: 850px) { .feature-row { grid-template-columns: 1fr; } }
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
.feature-media { position: relative; overflow: hidden; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; min-height: 260px; }
.feature-text { padding: 50px 56px; display: flex; flex-direction: column; justify-content: center; background: var(--near-black); }
.feature-text .idx { font-family: 'Rajdhani', sans-serif; color: var(--blue-bright); letter-spacing: 0.2em; font-size: 0.75rem; margin-bottom: 12px; }
.feature-text h3 { font-size: 1.7rem; margin-bottom: 12px; }
.feature-text p { font-size: 0.92rem; max-width: 380px; }
.feature-text .tags-inline { font-family: 'Rajdhani', sans-serif; font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dimmer); margin-top: 14px; }

.standard-block { text-align: center; position: relative; overflow: hidden; padding: 110px 0; }
.standard-bg { position: absolute; inset: 0; background-size: cover; background-position: center; filter: brightness(0.4); }
.standard-content { position: relative; z-index: 2; }
.standard-content .eyebrow { color: var(--dim); }
.standard-content h2 { max-width: 700px; margin: 0 auto 16px; }
.standard-content p { max-width: 500px; margin: 0 auto; }

/* ---------- CTA closer ---------- */
.closer { position: relative; overflow: hidden; min-height: 460px; display: flex; align-items: center; }
.closer-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.closer-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,7,8,0.94), rgba(6,7,8,0.55) 50%, rgba(6,7,8,0.15)); }
.closer-content { position: relative; z-index: 2; max-width: 480px; }
.closer-side { position: absolute; right: 48px; top: 40px; z-index: 2; text-align: right; font-family: 'Rajdhani', sans-serif; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(255,255,255,0.55); display: flex; flex-direction: column; gap: 8px; }
@media (max-width: 800px) { .closer-side { display: none; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--black); border-top: 1px solid var(--line); padding: 44px 0 24px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.footer-nav { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-nav a { font-family: 'Rajdhani', sans-serif; font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--dim); }
.footer-nav a:hover { color: var(--white); }
.footer-social { display: flex; gap: 14px; }
.footer-social a { width: 32px; height: 32px; border: 1px solid var(--line); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; color: var(--dim); }
.footer-social a:hover { color: var(--white); border-color: var(--dim); }
.footer-bottom { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 16px; padding-top: 22px; font-size: 0.78rem; color: var(--dimmer); }
.footer-tagline { font-family: 'Rajdhani', sans-serif; letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.75rem; }
.footer-bottom .right { text-align: right; }
@media (max-width: 700px) { .footer-bottom { text-align: left; } .footer-bottom .right { text-align: left; } }

/* ---------- Mobile nav drawer ---------- */
.mobile-drawer {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(6,7,8,0.98);
  display: none; flex-direction: column; padding: 90px 32px 32px;
  gap: 26px;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer a { font-family: 'Rajdhani', sans-serif; font-size: 1.3rem; text-transform: uppercase; letter-spacing: 0.06em; }
.mobile-drawer .close-drawer { position: absolute; top: 24px; right: 24px; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; }

/* utility */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.narrow { max-width: 620px; }
.centered-head { max-width: 620px; margin: 0 auto 20px; text-align: center; }