/* ============================================================
   Rakeen Brand System — Base styles + utilities
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; overflow-x: hidden; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--t-md);
  line-height: var(--lh-relax);
  color: var(--text);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01';
  letter-spacing: -0.005em;
  overflow-x: hidden;
}

/* Selection */
::selection { background: var(--blue-100); color: var(--paper-2); }

/* Scrollbar — minimal, Apple-style */
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--ink-12); border-radius: 999px; }
*::-webkit-scrollbar-thumb:hover { background: var(--ink-20); }

/* ---- Type ---- */
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; line-height: var(--lh-tight); }
p { margin: 0; }
a { color: inherit; text-decoration: none; }

.display-1 { font-size: clamp(80px, 11vw, 160px); font-weight: 500; letter-spacing: var(--ls-display); line-height: 0.95; }
.display-2 { font-size: clamp(56px, 7.5vw, 96px); font-weight: 500; letter-spacing: var(--ls-display); line-height: 1.0; }
.display-3 { font-size: clamp(40px, 5.5vw, 64px); font-weight: 500; letter-spacing: var(--ls-title); line-height: 1.05; }
.headline  { font-size: clamp(28px, 3.4vw, 44px); font-weight: 600; letter-spacing: var(--ls-title); line-height: 1.1; }
.title     { font-size: 28px; font-weight: 600; letter-spacing: var(--ls-tight); line-height: 1.2; }
.subhead   { font-size: 22px; font-weight: 500; letter-spacing: var(--ls-tight); line-height: 1.3; }
.body-lg   { font-size: 19px; line-height: var(--lh-relax); color: var(--text-soft); font-weight: 400; }
.body      { font-size: 17px; line-height: var(--lh-relax); }
.body-sm   { font-size: 15px; line-height: var(--lh-relax); }
.caption   { font-size: 13px; color: var(--text-mute); }
.eyebrow   { font-size: 12px; font-weight: 600; letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--accent); }
.eyebrow-mute { font-size: 12px; font-weight: 600; letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--text-mute); }
.mono { font-family: var(--font-mono); }

/* Editorial italic accent */
/* Editorial italic accent — Fraunces serif italic, real character, not faux. */
.em-serif { font-style: italic; font-family: 'Fraunces', 'New York', 'Times New Roman', serif; font-weight: 400; letter-spacing: -0.025em; font-variation-settings: 'opsz' 96, 'SOFT' 50, 'WONK' 0; }

/* ---- Layout helpers ---- */
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.container-narrow { width: 100%; max-width: 920px; margin: 0 auto; padding: 0 32px; }
.container-wide { width: 100%; max-width: 1440px; margin: 0 auto; padding: 0 32px; }

.section { padding: var(--s-13) 0; position: relative; }
.section-compact { padding: var(--s-11) 0; }
.section-tight { padding: var(--s-10) 0; }

/* ---- Scroll reveal — animation hooks ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-1 { transition-delay: 60ms; }
.reveal-2 { transition-delay: 120ms; }
.reveal-3 { transition-delay: 180ms; }
.reveal-4 { transition-delay: 240ms; }
.reveal-5 { transition-delay: 300ms; }
.reveal-6 { transition-delay: 360ms; }
.reveal-7 { transition-delay: 420ms; }
.reveal-8 { transition-delay: 480ms; }

/* ---- Surfaces ---- */
.surface { background: var(--bg-elevated); border-radius: var(--r-xl); padding: var(--s-7); box-shadow: var(--shadow-2); transition: box-shadow var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out); }
.surface:hover { box-shadow: var(--shadow-3); transform: translateY(-2px); }
.surface-flat { background: var(--bg-elevated); border-radius: var(--r-xl); padding: var(--s-7); }
.surface-deep { background: var(--bg-deep); color: var(--paper); border-radius: var(--r-xl); padding: var(--s-7); }
.surface-soft { background: var(--mist-40); border-radius: var(--r-xl); padding: var(--s-7); }

/* ---- Eyebrow + headline pattern ---- */
.section-header { display: flex; flex-direction: column; gap: var(--s-4); max-width: 720px; margin-bottom: var(--s-9); }

/* ---- Logo entrance animation ---- */
@keyframes letterIn {
  from { opacity: 0; transform: translateY(28px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulseRing {
  0%   { box-shadow: 0 0 0 0 var(--blue-glow); }
  100% { box-shadow: 0 0 0 18px rgba(58,93,192,0); }
}
@keyframes shimmer {
  from { background-position: -200% 0; }
  to   { background-position: 200% 0; }
}

/* ---- Apple-style focus visible ---- */
:focus { outline: none; }
:focus-visible { box-shadow: var(--focus-ring); border-radius: var(--r-sm); }

button { background: transparent; border: 0; color: inherit; font: inherit; cursor: pointer; padding: 0; }
input, textarea { font: inherit; color: inherit; }

/* Form fields handle their own focus state via the parent .is-focused class —
   the global :focus-visible ring would stack a blue glow on top of the field's
   own inset ring and make the whole thing read as a clumsy double border. */
input:focus, input:focus-visible,
select:focus, select:focus-visible,
textarea:focus, textarea:focus-visible { box-shadow: none; outline: none; }

/* ---- Logo SVG paths animation (used on cover hero) ---- */
.rk-logo-anim path { opacity: 0; transform: translateY(20px); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }
.rk-logo-anim.in path { opacity: 1; transform: translateY(0); }
/* Stagger each big letter, then bring in the tagline together at the end */
.rk-logo-anim.in path:nth-of-type(1) { transition-delay: 0ms; }
.rk-logo-anim.in path:nth-of-type(2) { transition-delay: 70ms; }
.rk-logo-anim.in path:nth-of-type(3) { transition-delay: 140ms; }
.rk-logo-anim.in path:nth-of-type(4) { transition-delay: 210ms; }
.rk-logo-anim.in path:nth-of-type(5) { transition-delay: 280ms; }
.rk-logo-anim.in path:nth-of-type(6) { transition-delay: 350ms; }
.rk-logo-anim.in path:nth-of-type(7) { transition-delay: 460ms; }
.rk-logo-anim.in polygon { transition: opacity 700ms var(--ease-out) 175ms, transform 700ms var(--ease-out) 175ms; opacity: 0; transform: translateY(20px); }
.rk-logo-anim.in polygon { opacity: 1; transform: translateY(0); }
.rk-logo-anim.in g path { transition-delay: 580ms; }

/* ---- Magnetic hover prep ---- */
.magnetic { transition: transform var(--dur-2) var(--ease-out); will-change: transform; }

/* ---- Utility ---- */
.row { display: flex; align-items: center; }
.col { display: flex; flex-direction: column; }
.gap-1 { gap: var(--s-1); } .gap-2 { gap: var(--s-2); } .gap-3 { gap: var(--s-3); }
.gap-4 { gap: var(--s-4); } .gap-5 { gap: var(--s-5); } .gap-6 { gap: var(--s-6); }
.gap-7 { gap: var(--s-7); } .gap-8 { gap: var(--s-8); }
.mb-4 { margin-bottom: var(--s-4); } .mb-6 { margin-bottom: var(--s-6); }
.mb-8 { margin-bottom: var(--s-8); } .mb-10 { margin-bottom: var(--s-10); }
.text-soft { color: var(--text-soft); } .text-mute { color: var(--text-mute); }
.text-blue { color: var(--accent); }

/* Subtle background grid for some hero treatments */
.bg-grid {
  background-image:
    linear-gradient(rgba(22,29,54,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,29,54,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
}
.bg-grid-deep {
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
}

/* Soft radial spotlight */
.spot-light {
  background: radial-gradient(circle at 30% 20%, var(--blue-glow), transparent 60%);
}
.spot-light-mist {
  background: radial-gradient(circle at 70% 30%, var(--mist-60), transparent 50%);
}

/* ============================================================
   Site nav + hero
   ============================================================ */
.rk-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background var(--dur-2) var(--ease-out), backdrop-filter var(--dur-2) var(--ease-out); }
.rk-nav__inner { max-width: 1440px; margin: 0 auto; padding: 18px 32px;
  display: flex; align-items: center; gap: var(--s-7); }
.rk-nav__brand { display: inline-flex; align-items: center; gap: 10px; color: var(--rk-ink); }
.rk-nav__brand-text { font-family: var(--font-display); font-size: 15px; font-weight: 700; letter-spacing: -0.01em; }
.rk-nav__links { display: flex; gap: var(--s-1); margin-left: var(--s-7); }
.rk-nav__link { padding: 8px 14px; border-radius: var(--r-pill); font-size: 14px; font-weight: 500;
  color: var(--ink-65); position: relative; transition: color var(--dur-1) var(--ease-out); }
.rk-nav__link:hover { color: var(--rk-ink); }
.rk-nav__link.is-active { color: var(--rk-ink); }
.rk-nav__link.is-active::after { content:''; position: absolute; left: 50%; bottom: -1px;
  width: 4px; height: 4px; border-radius: 50%; background: var(--accent);
  transform: translateX(-50%); }
.rk-nav__cta { margin-left: auto; display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--r-pill);
  background: var(--rk-ink); color: var(--paper);
  font-size: 14px; font-weight: 600; letter-spacing: -0.005em; white-space: nowrap;
  transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out), background var(--dur-2) var(--ease-out); }
.rk-nav__cta:hover { background: var(--blue-100); transform: translateY(-1px); box-shadow: var(--shadow-blue); }
.rk-nav.is-scrolled { background: rgba(243,248,248,0.72); backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px); box-shadow: 0 1px 0 rgba(22,29,54,0.05); }
.rk-nav__progress { position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--blue-100); transform-origin: 0 50%; transform: scaleX(0);
  transition: transform 80ms linear; }

/* Active-link pill indicator (sliding background) */
.rk-nav__links { position: relative; }
.rk-nav__indicator { position: absolute; top: 50%; left: 0; height: 32px; transform: translateY(-50%);
  background: var(--ink-5); border-radius: var(--r-pill); pointer-events: none;
  opacity: 0; transition: opacity var(--dur-2) var(--ease-out),
    transform var(--dur-3) cubic-bezier(0.34, 1.4, 0.64, 1),
    width var(--dur-3) cubic-bezier(0.34, 1.4, 0.64, 1); z-index: 0; }
.rk-nav__indicator.is-visible { opacity: 1; }
.rk-nav__link { z-index: 1; }

/* Burger button — hidden on desktop, shown on mobile */
.rk-nav__burger { display: none; margin-left: auto;
  width: 40px; height: 40px; border: 0; background: transparent; cursor: pointer;
  padding: 8px; position: relative; border-radius: var(--r-md);
  transition: background var(--dur-2) var(--ease-out); }
.rk-nav__burger:hover { background: var(--ink-5); }
.rk-nav__burger:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.rk-nav__burger-line { display: block; width: 22px; height: 2px; background: var(--rk-ink);
  border-radius: 2px; margin: 4px auto; transform-origin: center;
  transition: transform var(--dur-2) var(--ease-out), opacity var(--dur-2) var(--ease-out); }
.rk-nav__burger.is-open .rk-nav__burger-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.rk-nav__burger.is-open .rk-nav__burger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.rk-nav__burger.is-open .rk-nav__burger-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile drawer — full-height slide-in panel */
.rk-mobile { position: fixed; inset: 0; z-index: 200; overflow: hidden;
  visibility: hidden; opacity: 0; pointer-events: none;
  transition: opacity var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3); }
.rk-mobile.is-open { visibility: visible; opacity: 1; pointer-events: auto; transition-delay: 0s; }
.rk-mobile__backdrop { position: absolute; inset: 0;
  background: rgba(22,29,54,0.48); backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px); }
.rk-mobile__panel { position: absolute; top: 0; right: 0; bottom: 0;
  width: min(380px, 100%); background: var(--paper);
  display: flex; flex-direction: column; gap: var(--s-6);
  padding: clamp(20px, 6vw, 32px); padding-top: clamp(80px, 18vw, 96px);
  box-shadow: -16px 0 48px rgba(22,29,54,0.18);
  transform: translateX(100%); transition: transform var(--dur-3) cubic-bezier(0.32, 0.72, 0, 1);
  overflow-y: auto; }
.rk-mobile.is-open .rk-mobile__panel { transform: translateX(0); }
.rk-mobile__head { display: flex; flex-direction: column; gap: 6px; padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--ink-8); }
.rk-mobile__eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em;
  color: var(--accent); font-weight: 600; }
.rk-mobile__title { font-family: var(--font-display); font-size: clamp(22px, 6vw, 28px);
  font-weight: 600; letter-spacing: -0.018em; color: var(--rk-ink); line-height: 1.15; }
.rk-mobile__nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.rk-mobile__link { display: flex; align-items: center; gap: var(--s-4);
  padding: 14px var(--s-3); border-radius: var(--r-md);
  color: var(--rk-ink); font-size: 16px; font-weight: 500;
  opacity: 0; transform: translateX(12px);
  transition: opacity 320ms var(--ease-out) calc(var(--i, 0) * 40ms + 120ms),
    transform 320ms var(--ease-out) calc(var(--i, 0) * 40ms + 120ms),
    background var(--dur-2) var(--ease-out); }
.rk-mobile.is-open .rk-mobile__link { opacity: 1; transform: translateX(0); }
.rk-mobile__link:hover { background: var(--ink-5); }
.rk-mobile__link.is-active { background: var(--blue-tint); color: var(--accent); }
.rk-mobile__link.is-active .rk-mobile__link-num { color: var(--accent); }
.rk-mobile__link-num { font-family: var(--font-mono); font-size: 12px; color: var(--text-mute);
  letter-spacing: 0.05em; font-weight: 600; min-width: 24px; }
.rk-mobile__link-label { flex: 1; }
.rk-mobile__link-arrow { width: 18px; height: 18px; color: var(--text-mute);
  transition: transform var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out); }
.rk-mobile__link:hover .rk-mobile__link-arrow { transform: translateX(4px); color: var(--rk-ink); }
.rk-mobile__foot { padding-top: var(--s-4); border-top: 1px solid var(--ink-8); }
.rk-mobile__cta { display: inline-flex; align-items: center; gap: 10px; justify-content: center;
  width: 100%; padding: 14px 20px; border-radius: var(--r-pill);
  background: var(--rk-ink); color: var(--paper);
  font-size: 15px; font-weight: 600; letter-spacing: -0.005em;
  transition: background var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out); }
.rk-mobile__cta:hover { background: var(--blue-100); transform: translateY(-1px); }

/* Mobile breakpoint: hide desktop nav, show burger */
@media (max-width: 960px) {
  .rk-nav__inner { padding: 14px 20px; gap: var(--s-4); }
  .rk-nav__links { display: none; }
  .rk-nav__cta { display: none; }
  .rk-nav__burger { display: block; }
  .rk-main { padding-top: 68px; }
}
@media (max-width: 480px) {
  .rk-nav__inner { padding: 12px 16px; }
  .rk-nav__brand-text { font-size: 14px; }
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .rk-mobile__panel,
  .rk-mobile__link,
  .rk-nav__indicator,
  .rk-nav__burger-line { transition-duration: 0.01ms !important; }
}

/* Hero */
.rk-main { padding-top: 76px; }
.rk-hero { padding: clamp(80px, 12vw, 180px) 0 clamp(60px, 8vw, 120px); position: relative; overflow: hidden; }
.rk-hero__inner { display: flex; flex-direction: column; gap: var(--s-4); max-width: 920px; }
.rk-hero__inner--center { margin: 0 auto; align-items: center; text-align: center; }
.rk-hero__inner--start { align-items: flex-start; text-align: left; }
.rk-hero__h { margin: 0; }
.rk-hero__sub { max-width: 680px; font-size: clamp(18px, 1.4vw, 22px); }
.rk-hero--dark { background: var(--rk-ink); color: var(--paper); }
.rk-hero--dark .eyebrow { color: var(--mist-100); }
.rk-eyebrow--light { color: var(--mist-100); }

/* Footer */
.rk-footer { margin-top: var(--s-13); background: var(--paper-3); padding-top: var(--s-11); }
.rk-footer .container { padding-top: 0; }