/* ============================================================
   ALBARAHIN CONSULTANCY L.L.C — dark cinematic chapters
   Palette: dark navy #0C1626 · cool gray #8A94A6 ·
            ivory #F4F1E8 · bright blue #2E9BFF
   Type: Playfair Display (serif) + Inter (body)
   ============================================================ */
:root {
  --bg: #0C1626;
  --bg-deep: #081120;
  --panel: #0E1930;
  --text: #F4F1E8;
  --muted: #8A94A6;
  --accent: #2E9BFF;
  --accent-soft: rgba(46, 155, 255, 0.14);
  --line: rgba(46, 155, 255, 0.28);
  --line-soft: rgba(244, 241, 232, 0.12);
  --font-head: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ease-long: cubic-bezier(0.22, 0.61, 0.36, 1);
  --nav-h: 64px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-head); font-weight: 600; line-height: 1.22; }

a { color: inherit; }

section[id], .chapters { scroll-margin-top: calc(var(--nav-h) - 1px); }

/* ---------- Scroll progress hairline ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 2px; background: transparent;
}
.scroll-progress span {
  display: block; height: 100%; width: 100%;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
}

/* ---------- Header: slim dark bar ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(12, 22, 38, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}

.nav-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 0 28px; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
}

.brand {
  font-family: var(--font-head);
  font-size: 1.2rem; font-weight: 700;
  letter-spacing: 0.24em;
  text-decoration: none; color: var(--text);
}

.nav-links { display: flex; gap: 40px; }
.nav-links a {
  position: relative;
  text-decoration: none; color: var(--muted);
  font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  padding: 6px 0;
  transition: color 0.3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  height: 1px; width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.45s var(--ease-long);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  padding: 10px; flex-direction: column; gap: 5px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); transition: transform 0.25s, opacity 0.25s;
}

/* ---------- Side dot-nav (desktop only) ---------- */
.dot-nav {
  position: fixed; right: 26px; top: 50%; transform: translateY(-50%);
  z-index: 90;
  display: flex; flex-direction: column; gap: 22px;
}
.dot-nav a {
  display: flex; align-items: center; flex-direction: row-reverse;
  gap: 12px; text-decoration: none;
}
.dot-nav .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: transparent;
  border: 1px solid var(--muted);
  transition: background 0.5s, border-color 0.5s, box-shadow 0.5s;
  flex-shrink: 0;
}
.dot-nav .dot-label {
  font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); opacity: 0; transform: translateX(6px);
  transition: opacity 0.4s, transform 0.4s var(--ease-long);
  white-space: nowrap;
}
.dot-nav a:hover .dot-label { opacity: 1; transform: translateX(0); }
.dot-nav a.is-active .dot {
  background: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 10px rgba(46, 155, 255, 0.7);
}
.dot-nav a.is-active .dot-label { opacity: 1; transform: translateX(0); color: var(--text); }

/* ---------- Hero: full-viewport ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  text-align: center;
  padding: calc(var(--nav-h) + 48px) 24px 96px;
}

.hero-bg {
  position: absolute; inset: -20% 0;
  background:
    radial-gradient(1000px 480px at 50% -8%, var(--accent-soft), transparent 62%),
    radial-gradient(800px 420px at 82% 88%, rgba(46, 155, 255, 0.06), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  animation: ambientDrift 22s ease-in-out infinite alternate;
  will-change: transform;
}
@keyframes ambientDrift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(0, -3%, 0) scale(1.04); }
}

/* Mouse-following spotlight (desktop, JS-driven, transform-only) */
.hero-spotlight {
  position: absolute; top: 0; left: 0;
  width: 640px; height: 640px;
  margin: -320px 0 0 -320px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(46, 155, 255, 0.12), transparent 65%);
  opacity: 0;
  transition: opacity 1.2s ease;
  will-change: transform;
}
.hero-spotlight.on { opacity: 1; }

.hero-inner { position: relative; z-index: 1; max-width: 920px; margin: 0 auto; }

/* Hero entrance: slow staggered rise */
.js .hero-inner > * {
  opacity: 0;
  animation: heroRise 1.2s var(--ease-long) forwards;
}
.js .hero-inner > *:nth-child(1) { animation-delay: 0.15s; }
.js .hero-inner > *:nth-child(2) { animation-delay: 0.35s; }
.js .hero-inner > *:nth-child(3) { animation-delay: 0.6s; }
.js .hero-inner > *:nth-child(4) { animation-delay: 0.8s; }
.js .hero-inner > *:nth-child(5) { animation-delay: 1s; }
@keyframes heroRise {
  from { opacity: 0; transform: translateY(44px); }
  to   { opacity: 1; transform: translateY(0); }
}

.eyebrow {
  font-size: 0.76rem; letter-spacing: 0.36em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 34px;
}

.hero h1 {
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  letter-spacing: 0.01em;
}

.accent-rule {
  width: 72px; height: 2px; background: var(--accent);
  margin: 36px auto;
}
.accent-rule--left { margin: 30px 0 44px; }

.hero-sub {
  font-size: 1.1rem; color: var(--muted);
  max-width: 660px; margin: 0 auto 52px;
}

.hero-scroll { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); z-index: 1; }
.hero-scroll span {
  display: block; width: 1px; height: 56px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollHint 2.6s ease-in-out infinite;
}
@keyframes scrollHint {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  55%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none;
  font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  padding: 17px 52px; border: 1px solid var(--accent);
  cursor: pointer; background: transparent; color: var(--text);
  transition: background 0.4s, color 0.4s, border-color 0.4s, box-shadow 0.4s;
  will-change: transform;
}
.btn-accent { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.btn-accent:hover {
  background: #5BB3FF; border-color: #5BB3FF; color: var(--bg);
  box-shadow: 0 8px 34px rgba(46, 155, 255, 0.35);
}

/* ---------- Scroll reveals (long eases) ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(44px);
  transition: opacity 1.1s ease, transform 1.1s var(--ease-long);
}
.js .reveal.visible { opacity: 1; transform: translateY(0); }

.js h2.reveal { transition-delay: 0.1s; }
.js .accent-rule.reveal { transition-delay: 0.2s; }
.js .section-lead.reveal, .js .section-note.reveal { transition-delay: 0.12s; }
.js .method-steps .method-step:nth-child(2) { transition-delay: 0.14s; }
.js .method-steps .method-step:nth-child(3) { transition-delay: 0.28s; }
.js .contact-form.reveal { transition-delay: 0.12s; }

/* ---------- Sections ---------- */
.section { padding: 140px 24px; }
.section-alt { background: var(--panel); }

.container { max-width: 1160px; margin: 0 auto; }
.container-narrow { max-width: 820px; }

.section-label {
  font-size: 0.74rem; letter-spacing: 0.34em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
}

.section h2 { font-size: clamp(2.1rem, 4.4vw, 3rem); }
.section-lead { color: var(--muted); font-size: 1.08rem; max-width: 640px; margin: 0 auto 64px; }
.section-note {
  color: var(--muted); font-size: 0.92rem; font-style: italic;
  margin: 0 0 8px; max-width: 640px;
}

/* ---------- Cinematic sticky chapters ---------- */
.chapters { position: relative; }

.chapter {
  position: relative;
  height: 230vh;
  background: var(--bg);
}
.chapter:nth-of-type(2) { background: var(--bg-deep); }

.chapter-inner {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: calc(var(--nav-h) + 24px) 24px 48px;
}

/* Faint oversized chapter number as backdrop geometry */
.chapter-inner::before {
  content: attr(data-num);
  position: absolute;
  font-family: var(--font-head);
  font-size: clamp(14rem, 34vw, 30rem);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(46, 155, 255, 0.10);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.chapter-content {
  position: relative; z-index: 1;
  max-width: 720px; width: 100%;
  text-align: left;
  will-change: opacity, transform;
}

.chapter-num {
  font-family: var(--font-head); font-size: 1.05rem;
  color: var(--accent); letter-spacing: 0.14em;
  margin-bottom: 18px;
}
.chapter-content h2 {
  font-size: clamp(2.4rem, 5.4vw, 3.9rem);
  margin-bottom: 0;
}
.chapter-lead {
  color: var(--muted); font-size: 1.12rem;
  max-width: 600px; margin-bottom: 40px;
}

/* ---------- Accordion (click micro-interaction) ---------- */
.accordion {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  max-width: 600px;
}
.accordion-head {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  background: none; border: 0; cursor: pointer;
  padding: 22px 4px;
  color: var(--text);
  font-family: var(--font-body); font-size: 0.84rem; font-weight: 500;
  letter-spacing: 0.24em; text-transform: uppercase;
  transition: color 0.35s;
}
.accordion-head:hover { color: var(--accent); }
.accordion-icon { position: relative; width: 14px; height: 14px; flex-shrink: 0; }
.accordion-icon::before, .accordion-icon::after {
  content: ""; position: absolute; background: var(--accent);
  transition: transform 0.45s var(--ease-long);
}
.accordion-icon::before { left: 0; top: 6px; width: 14px; height: 2px; }
.accordion-icon::after { left: 6px; top: 0; width: 2px; height: 14px; }
.accordion-head[aria-expanded="true"] .accordion-icon::after { transform: rotate(90deg) scaleY(0); }
.accordion-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.7s var(--ease-long);
}
.accordion-head[aria-expanded="true"] + .accordion-body { grid-template-rows: 1fr; }
.accordion-body > ul {
  overflow: hidden;
  list-style: none; padding: 0 4px;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.5s ease 0.12s, transform 0.5s var(--ease-long) 0.12s, padding 0.7s var(--ease-long);
}
.accordion-head[aria-expanded="true"] + .accordion-body > ul {
  opacity: 1; transform: none;
  padding-bottom: 28px;
}
.accordion-body li {
  position: relative;
  padding: 10px 0 10px 26px;
  color: var(--muted); font-size: 0.98rem;
  border-top: 1px solid rgba(244, 241, 232, 0.06);
}
.accordion-body li::before {
  content: ""; position: absolute; left: 4px; top: 19px;
  width: 6px; height: 6px; border: 1px solid var(--accent);
  transform: rotate(45deg);
}

/* ---------- Method ---------- */
.method-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 56px; margin-top: 72px;
}
.method-step { border-top: 1px solid var(--line); padding-top: 30px; }
.method-num {
  font-family: var(--font-head); font-size: 1.6rem;
  color: var(--accent); display: block; margin-bottom: 16px;
}
.method-step h3 { font-size: 1.35rem; margin-bottom: 14px; }
.method-step p { color: var(--muted); font-size: 0.99rem; }

/* ---------- About ---------- */
.about { text-align: center; }
.about .section-label { margin-bottom: 20px; }
.about .accent-rule { margin-left: auto; margin-right: auto; }
.about-statement { max-width: 700px; margin: 0 auto 48px; }
.about-statement p {
  color: var(--muted); font-size: 1.08rem; margin-bottom: 24px;
}
.about-statement p:last-child { margin-bottom: 0; }
.about-roles {
  display: inline-flex; align-items: center; gap: 22px;
  font-size: 0.78rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line-soft);
  padding: 18px 36px;
}
.role-sep { width: 5px; height: 5px; background: var(--accent); transform: rotate(45deg); }

/* ---------- Contact ---------- */
#contact { text-align: center; }
#contact .accent-rule { margin-left: auto; margin-right: auto; }
#contact .section-lead { margin-left: auto; margin-right: auto; }

.contact-lines { max-width: 560px; margin: 0 auto 72px; text-align: left; }
.contact-line {
  display: grid; grid-template-columns: 110px 1fr;
  gap: 18px; align-items: baseline;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line-soft);
  text-decoration: none;
}
.contact-line:first-child { border-top: 1px solid var(--line-soft); }
a.contact-line { transition: border-color 0.35s; }
a.contact-line:hover { border-color: var(--accent); }
a.contact-line:hover .contact-value { color: var(--accent); }
.contact-key {
  font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--accent);
}
.contact-value { font-size: 1.02rem; word-break: break-word; transition: color 0.35s; }

.contact-form { max-width: 680px; margin: 0 auto; text-align: left; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form-field { margin-bottom: 22px; display: flex; flex-direction: column; }
.form-field label {
  font-size: 0.76rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}
.form-field input, .form-field textarea {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--line-soft);
  padding: 13px 16px; font: inherit; font-size: 0.95rem;
  border-radius: 0; resize: vertical;
  transition: border-color 0.35s;
}
.form-field input:focus, .form-field textarea:focus {
  outline: none; border-color: var(--accent);
}
.contact-form .btn { margin-top: 6px; }
.form-note { font-size: 0.85rem; color: var(--muted); margin-top: 18px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 64px 24px;
  background: var(--bg-deep);
  text-align: center;
}
.footer-name {
  font-family: var(--font-head); font-size: 1.12rem;
  letter-spacing: 0.22em; margin-bottom: 14px;
}
.footer-lines { color: var(--muted); font-size: 0.92rem; margin-bottom: 14px; }
.footer-lines a { text-decoration: none; transition: color 0.3s; }
.footer-lines a:hover { color: var(--accent); }
.sep { margin: 0 10px; color: var(--accent); }
.footer-copy { font-size: 0.82rem; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .dot-nav { display: none; }
}

@media (max-width: 900px) {
  .method-steps { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none; position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--line-soft);
    padding: 8px 28px 20px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 15px 0; border-top: 1px solid var(--line-soft); }
  .nav-links a::after { display: none; }

  .hero { padding: calc(var(--nav-h) + 32px) 20px 88px; }

  .section { padding: 92px 20px; }
  .form-row { grid-template-columns: 1fr; }

  .contact-line { grid-template-columns: 1fr; gap: 6px; }

  /* Mobile: chapters become simple stacked sections, no pinning */
  .chapter { height: auto; padding: 88px 0; }
  .chapter:nth-of-type(2) { background: var(--bg); }
  .chapter-inner {
    position: static; height: auto;
    padding: 0 20px; overflow: visible;
  }
  .chapter-inner::before { display: none; }
  .chapter-content { opacity: 1 !important; transform: none !important; }
  .chapter-content h2 { font-size: clamp(2rem, 8vw, 2.6rem); }

  /* Mobile: fade-only reveals */
  .js .reveal { transform: none; }
  .js .hero-inner > * { animation-duration: 0.7s; }
  .js .hero-inner > *:nth-child(1) { animation-delay: 0.05s; }
  .js .hero-inner > *:nth-child(2) { animation-delay: 0.12s; }
  .js .hero-inner > *:nth-child(3) { animation-delay: 0.19s; }
  .js .hero-inner > *:nth-child(4) { animation-delay: 0.26s; }
  .js .hero-inner > *:nth-child(5) { animation-delay: 0.33s; }
}

/* ---------- Reduced motion: everything static ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .js .hero-inner > * { opacity: 1; animation: none; }
  .js .reveal { opacity: 1; transform: none; transition: none; }

  .hero-bg { animation: none; }
  .hero-scroll { display: none; }

  .chapter { height: auto; padding: 120px 0; }
  .chapter-inner { position: static; height: auto; padding: 0 24px; }
  .chapter-inner::before { display: none; }
  .chapter-content { opacity: 1; transform: none; }

  .scroll-progress { display: none; }
  .accordion-body { transition: none; }
}

/* photos */
.hero-bg img.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,15,28,.5),transparent 55%,var(--bg-deep) 100%)}
.section-photo{display:block;width:100%;max-width:880px;margin:0 auto 2.4rem;border-radius:12px;box-shadow:0 20px 50px rgba(0,0,0,.4)}

/* faq */
.faq-list{max-width:760px;margin:0 auto;text-align:left}
.faq-list details{background:rgba(255,255,255,.03);border:1px solid rgba(74,144,217,.25);border-radius:10px;margin-bottom:.8rem}
.faq-list summary{padding:1.1rem 1.4rem;cursor:pointer;font-weight:600;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:hover{color:var(--accent)}
.faq-list details p{padding:0 1.4rem 1.2rem;color:#b8c4d4;line-height:1.7;margin:0}

/* insights */
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;max-width:1080px;margin:2.5rem auto 0}
.insight-card{background:rgba(255,255,255,.03);border:1px solid rgba(74,144,217,.22);border-radius:12px;padding:1.8rem;transition:transform .3s}
.insight-card:hover{transform:translateY(-6px)}
.insight-card h3{font-size:1.15rem;margin:0 0 .8rem;color:var(--accent)}
.insight-card p{color:#aebbcf;line-height:1.7;margin:0;font-size:.95rem}
@media(max-width:860px){.insight-grid{grid-template-columns:1fr}}

/* vibrant color boost */
:root{--cyan:#38e1ff;--sky:#6db9ff;--blue-vivid:#2f7bff}
.color-band{background:linear-gradient(135deg,#0a1e3c 0%,#134a8c 45%,#2f7bff 80%,#38e1ff 100%);padding:4.5rem 0;color:#f0f8ff}
.color-band h2{color:#fff}
.color-band p{color:#d6e9ff}
.section-photo{border:2px solid rgba(56,225,255,.3)}
.insight-card{border-color:rgba(56,225,255,.3)}
.insight-card h3{color:var(--cyan)}
.hero-bg img.hero-photo{opacity:.42}