/* ============================================================
   VAYN International — styles
   Palette: navy / slate / copper / stone / off-white
   Type:    Cinzel (display) + Manrope (body)
   ============================================================ */

:root {
  --navy:        #16213A;
  --navy-deep:   #101931;
  --slate:       #2A3342;
  --copper:      #A56A43;
  --copper-soft: #C2885F;
  --stone:       #D8D3CC;
  --off-white:   #F7F7F4;
  --paper:       #FBFAF7;

  --ink:         #1A2236;          /* body text on light */
  --ink-soft:    #5A6072;          /* muted text on light */
  --on-dark:     #ECE9E3;          /* body text on navy */
  --on-dark-mut: #9AA1B2;          /* muted text on navy */

  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 0.5s var(--ease);

  --font-display: "Cinzel", "Times New Roman", serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--ink);
  background: var(--off-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; border-radius: 2px; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Section headings ---------- */
.section-kicker {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--copper); margin-bottom: 1.1rem;
}
.section-kicker--light { color: var(--copper-soft); }
.section-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.5rem, 2.5vw, 2.1rem); line-height: 1.16;
  letter-spacing: 0.005em; color: var(--navy);
}
.section-title--light { color: var(--off-white); }
.section-head { max-width: 38rem; margin-bottom: clamp(3rem, 6vw, 5rem); }
.section-intro {
  margin-top: 1.3rem; font-size: 1.02rem; color: var(--ink-soft); max-width: 48ch;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  padding: 0.95rem 1.7rem; font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  border-radius: 2px; transition: transform 0.25s var(--ease), background-color var(--t), color var(--t), border-color var(--t);
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-primary { background: var(--copper); color: var(--off-white); }
.btn-primary:hover { background: var(--copper-soft); }
.btn-ghost { color: var(--on-dark); border: 1px solid rgba(236,233,227,0.28); }
.btn-ghost:hover { border-color: var(--copper-soft); color: #fff; }
.btn-block { width: 100%; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
#top-sentinel { position: absolute; top: 0; height: 1px; width: 1px; }
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding: clamp(1rem, 2.4vw, 1.6rem) 0;
  transition: background-color var(--t), padding var(--t), box-shadow var(--t), backdrop-filter var(--t);
}
.site-header.scrolled {
  background: rgba(16,25,49,0.82);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  padding-top: 0.7rem; padding-bottom: 0.7rem;
  box-shadow: 0 1px 0 rgba(236,233,227,0.08);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.brand { display: inline-flex; align-items: center; gap: 0.75rem; color: var(--off-white); }
.brand-mark { width: 3.05rem; height: auto; color: var(--off-white); }
.brand-word { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--font-display); font-weight: 600; font-size: 1.32rem; letter-spacing: 0.18em; }
.brand-sub { font-size: 0.56rem; letter-spacing: 0.42em; color: var(--copper); margin-top: 0.28rem; padding-left: 0.04rem; }

.nav { display: flex; align-items: center; gap: clamp(1.4rem, 3vw, 2.6rem); }
.nav-link {
  position: relative; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.06em;
  color: var(--on-dark); padding: 0.4rem 0; transition: color 0.3s var(--ease);
}
.nav-link:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--copper); transition: width 0.35s var(--ease);
}
.nav-link:not(.nav-cta):hover { color: #fff; }
.nav-link:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  border: 1px solid rgba(236,233,227,0.28); padding: 0.6rem 1.2rem; border-radius: 2px;
  text-transform: uppercase; font-weight: 600; font-size: 0.74rem; letter-spacing: 0.12em;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), color 0.3s var(--ease);
}
.nav-cta:hover { border-color: var(--copper); background: var(--copper); color: var(--off-white); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 30px; padding: 6px 2px; z-index: 110; }
.nav-toggle span { display: block; height: 1.5px; width: 100%; background: var(--off-white); transition: transform 0.35s var(--ease), opacity 0.25s var(--ease); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; min-height: 100dvh; display: flex; align-items: center;
  background: var(--navy); color: var(--off-white); overflow: hidden;
  padding-top: 6rem; padding-bottom: 4rem;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-photo {
  position: absolute; inset: 0;
  background: url("assets/hero.jpg") center 20% / cover no-repeat;
  transform: scale(1.04); /* avoids edge gaps; subtle depth */
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(22,33,58,0.95) 0%, rgba(22,33,58,0.88) 30%, rgba(22,33,58,0.6) 64%, rgba(22,33,58,0.34) 100%),
    linear-gradient(180deg, rgba(22,33,58,0.55) 0%, rgba(22,33,58,0.12) 34%, rgba(22,33,58,0.55) 78%, var(--navy) 100%);
}
.routes { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.45; }
.route-lines path { stroke-dasharray: 1600; stroke-dashoffset: 1600; animation: draw 3.2s var(--ease) forwards; }
.route-lines path:nth-child(2) { animation-delay: 0.25s; }
.route-lines path:nth-child(3) { animation-delay: 0.5s; }
.route-lines path:nth-child(4) { animation-delay: 1.4s; }
.node { opacity: 0; animation: nodeIn 0.8s var(--ease) forwards; animation-delay: 1.6s; }
.node-hub { animation-delay: 0.3s; }
.pulse { filter: drop-shadow(0 0 5px rgba(226,201,176,0.7)); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes nodeIn { to { opacity: 1; } }

.hero-inner { position: relative; z-index: 1; max-width: 56rem; }
.eyebrow {
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--copper-soft); margin-bottom: 1.8rem;
}
.hero-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.1rem, 4.6vw, 3.5rem); line-height: 1.12; letter-spacing: 0.005em;
  color: #fff;
}
.hero-lead {
  margin-top: 1.6rem; font-size: clamp(1rem, 1.4vw, 1.15rem); font-weight: 300;
  line-height: 1.65; color: var(--on-dark); max-width: 42ch;
}
.hero-actions { margin-top: 2.6rem; display: flex; flex-wrap: wrap; gap: 1rem; }

.scroll-cue { position: absolute; left: 50%; bottom: 2rem; transform: translateX(-50%); z-index: 1; width: 26px; height: 42px; border: 1px solid rgba(236,233,227,0.3); border-radius: 14px; }
.scroll-cue span { position: absolute; top: 8px; left: 50%; width: 3px; height: 7px; background: var(--copper-soft); border-radius: 2px; transform: translateX(-50%); animation: cue 1.8s var(--ease) infinite; }
@keyframes cue { 0% { opacity: 0; transform: translate(-50%, 0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, 14px); } }

/* ============================================================
   WHAT WE DO
   ============================================================ */
.work { padding: clamp(5rem, 11vw, 9rem) 0; background: var(--off-white); }
.work, .about, .contact { scroll-margin-top: 5rem; }

.pillars {
  display: grid; grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid rgba(26,34,54,0.12);
}
.pillar {
  padding: clamp(2rem, 4vw, 2.8rem) clamp(1.4rem, 3vw, 2.6rem) clamp(2rem, 4vw, 2.8rem) 0;
  border-bottom: 1px solid rgba(26,34,54,0.12);
  position: relative;
}
.pillar::before {
  content: ""; position: absolute; top: 0; left: 0; width: 0; height: 2px;
  background: var(--copper); transition: width 0.5s var(--ease);
}
.pillar:hover::before { width: 3rem; }
.pillar:nth-child(odd) { border-right: 1px solid rgba(26,34,54,0.12); padding-right: clamp(2rem, 4vw, 3.4rem); }
.pillar:nth-child(even) { padding-left: clamp(1.4rem, 3vw, 2.6rem); }
.pillar-icon {
  display: inline-flex; width: 2.2rem; height: 2.2rem; color: var(--copper);
  margin-bottom: 1.5rem;
}
.pillar-icon svg { width: 100%; height: 100%; }
.pillar h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--navy); margin-bottom: 0.65rem; letter-spacing: 0.04em; }
.pillar p { color: var(--ink-soft); font-size: 1rem; max-width: 38ch; }
.pillar.pillar-wide { grid-column: 1 / -1; border-right: none; padding-right: 0; }
.pillar-wide p { max-width: 52ch; }

/* ============================================================
   TRUSTED BY
   ============================================================ */

/* ============================================================
   GLOBAL NETWORK MAP
   ============================================================ */
.network { background: var(--navy); color: var(--on-dark); padding: clamp(4rem, 9vw, 7.5rem) 0; position: relative; overflow: hidden; }
.network::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(70% 90% at 82% 50%, rgba(165,106,67,0.12), transparent 60%); }
.network-inner { position: relative; display: grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.network-lead { margin-top: 1.4rem; color: var(--on-dark); max-width: 42ch; }
.network-hubs { display: flex; flex-wrap: wrap; gap: 1.6rem 2.6rem; margin-top: 2.3rem; }
.hub { position: relative; padding-left: 1.35rem; }
.hub-dot { position: absolute; left: 0; top: 0.4rem; width: 9px; height: 9px; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 4px rgba(165,106,67,0.18); }

.map-wrap { position: relative; width: 100%; }
.map-wrap img { width: 100%; height: auto; display: block; }
.map-pin { position: absolute; transform: translate(-50%, -50%); width: 0; height: 0; }
.map-pin--ams { left: 51.4%; top: 10.7%; }
.map-pin--dxb { left: 65.4%; top: 38.2%; }
.map-pin b { position: absolute; left: 50%; bottom: 9px; transform: translateX(-50%); font-family: var(--font-body); font-size: 0.6rem; font-weight: 600; letter-spacing: 0.16em; color: var(--off-white); white-space: nowrap; }
.map-ring { position: absolute; left: 0; top: 0; width: 16px; height: 16px; margin: -8px 0 0 -8px; border: 1px solid var(--copper); border-radius: 50%; opacity: 0; animation: ring 2.8s ease-out infinite; }
@keyframes ring { 0% { transform: scale(0.5); opacity: 0.6; } 100% { transform: scale(2.4); opacity: 0; } }

/* ============================================================
   ABOUT
   ============================================================ */
.about { padding: clamp(5rem, 12vw, 9.5rem) 0; background: var(--navy-deep); color: var(--on-dark); position: relative; }
.about-photo { margin: 0 0 2.2rem; border-radius: 4px; overflow: hidden; box-shadow: 0 24px 50px -28px rgba(0,0,0,0.6); position: relative; }
.about-photo::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(236,233,227,0.12); border-radius: 4px; pointer-events: none; }
.about-photo img { width: 100%; height: 100%; aspect-ratio: 1 / 1; object-fit: cover; object-position: center; display: block; }
.about::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background: radial-gradient(80% 60% at 85% 0%, rgba(165,106,67,0.12) 0%, transparent 55%);
}
.about-grid { position: relative; display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(2.5rem, 6vw, 5.5rem); align-items: start; }
.about-copy p { margin-top: 1.3rem; color: var(--on-dark); font-size: 1.075rem; max-width: 60ch; }
.about-copy p:first-of-type { margin-top: 1.8rem; }

.about-aside { padding-top: 0.4rem; }
.locations { display: grid; gap: 1.6rem; }
.location { display: flex; gap: 0.9rem; align-items: flex-start; }
.location-dot { margin-top: 0.45rem; width: 9px; height: 9px; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 4px rgba(165,106,67,0.18); flex: none; }
.location-city { font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: var(--off-white); letter-spacing: 0.05em; }
.location-note { font-size: 0.9rem; color: var(--on-dark-mut); margin-top: 0.15rem; }
.capabilities { list-style: none; margin-top: 2.4rem; border-top: 1px solid rgba(236,233,227,0.14); padding-top: 1.6rem; display: grid; gap: 0.95rem; }
.capabilities li { position: relative; padding-left: 1.4rem; font-size: 0.95rem; color: var(--on-dark); }
.capabilities li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 0.7rem; height: 1px; background: var(--copper); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { padding: clamp(5rem, 12vw, 9.5rem) 0; background: var(--paper); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }

.contact-details { list-style: none; margin-top: 2.6rem; display: grid; gap: 1.5rem; }
.contact-details li { display: grid; gap: 0.3rem; }
.cd-label { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--copper); }
.contact-details a, .contact-details span:not(.cd-label) { font-size: 1.075rem; color: var(--navy); }
.contact-details a { border-bottom: 1px solid transparent; transition: border-color 0.3s var(--ease); width: fit-content; }
.contact-details a:hover { border-color: var(--copper); }

.contact-form { display: grid; gap: 1.3rem; background: #fff; padding: clamp(1.8rem, 3.5vw, 2.8rem); border: 1px solid rgba(26,34,54,0.1); border-radius: 4px; box-shadow: 0 24px 60px -32px rgba(16,25,49,0.28); }
.field { display: grid; gap: 0.5rem; }
.field label { font-size: 0.74rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.field input, .field textarea {
  width: 100%; padding: 0.85rem 0.95rem; font: inherit; font-size: 0.98rem; color: var(--ink);
  background: var(--off-white); border: 1px solid rgba(26,34,54,0.14); border-radius: 3px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s var(--ease);
}
.field textarea { resize: vertical; min-height: 7rem; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--copper); box-shadow: 0 0 0 3px rgba(165,106,67,0.14); background: #fff; }
.field.invalid input, .field.invalid textarea { border-color: #B4452F; }
.field-error { font-size: 0.82rem; color: #B4452F; min-height: 0; }
.field-error:empty { display: none; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

#submitBtn { margin-top: 0.4rem; position: relative; }
.btn-spinner { display: none; width: 1rem; height: 1rem; border: 2px solid rgba(247,247,244,0.4); border-top-color: var(--off-white); border-radius: 50%; animation: spin 0.7s linear infinite; }
.is-sending .btn-label { opacity: 0.7; }
.is-sending .btn-spinner { display: inline-block; }
.is-sending { pointer-events: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-status { font-size: 0.95rem; min-height: 1.2em; }
.form-status.success { color: #2E6B4F; }
.form-status.error { color: #B4452F; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--navy); color: var(--on-dark-mut); padding: clamp(3rem, 6vw, 4.5rem) 0; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 2rem 3rem; align-items: center; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; gap: 1rem; }
.footer-brand .brand-mark { width: 2.85rem; color: var(--off-white); }
.footer-brand { flex-wrap: wrap; }
.footer-brand .brand-name { color: var(--off-white); }
.footer-tagline { font-family: var(--font-display); font-size: 1.05rem; color: var(--off-white); letter-spacing: 0.02em; padding-left: 1.2rem; border-left: 1px solid rgba(247,247,244,0.18); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 0.4rem 1.8rem; font-size: 0.9rem; }
.footer-nav a { color: var(--on-dark); border-bottom: 1px solid transparent; transition: border-color 0.3s var(--ease); }
.footer-nav a:hover { border-color: var(--copper); }
.footer-meta { display: flex; flex-wrap: wrap; gap: 0.4rem 1.8rem; align-items: center; font-size: 0.9rem; }
.footer-meta a { color: var(--on-dark); border-bottom: 1px solid transparent; transition: border-color 0.3s var(--ease); }
.footer-meta a:hover { border-color: var(--copper); }
.footer-copy { color: var(--on-dark-mut); }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.hero .reveal { transition-delay: 0.1s; }
.hero .reveal:nth-child(2) { transition-delay: 0.22s; }
.hero .reveal:nth-child(3) { transition-delay: 0.34s; }
.hero .reveal:nth-child(4) { transition-delay: 0.46s; }
.pillar.reveal:nth-child(2) { transition-delay: 0.08s; }
.pillar.reveal:nth-child(3) { transition-delay: 0.16s; }
.pillar.reveal:nth-child(4) { transition-delay: 0.24s; }
.pillar.reveal:nth-child(5) { transition-delay: 0.32s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .nav {
    position: fixed; inset: 0; flex-direction: column; justify-content: center;
    gap: 2.2rem; background: rgba(16,25,49,0.97); backdrop-filter: blur(12px);
    transform: translateX(100%); transition: transform 0.45s var(--ease); z-index: 105;
  }
  .nav.open { transform: translateX(0); }
  .nav-link { font-size: 1.15rem; }
  .nav-cta { font-size: 0.95rem; padding: 0.8rem 1.8rem; }
  .nav-toggle { display: flex; }
  body.menu-open { overflow: hidden; }
  .nav-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}

@media (max-width: 760px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .pillar, .pillar:nth-child(odd) { border-right: none; padding-right: 0; padding-left: 0; }
  .pillar:nth-child(even) { padding-left: 0; }
  .about-aside { margin-top: 1rem; }
  .contact-form { order: -1; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1.6rem; }
  .footer-tagline { flex-basis: 100%; padding-left: 0; border-left: none; margin-top: 0.4rem; }
  .network-inner { grid-template-columns: 1fr; }
  .network-map { order: -1; }
}

@media (max-width: 420px) {
  .brand-sub { letter-spacing: 0.3em; }
  .hero-actions .btn { width: 100%; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .route-lines path { stroke-dashoffset: 0; }
  .node { opacity: 1; }
  .pulse { display: none; }
  .map-ring { display: none; }
}