/* ==========================================================================
   IHAENG — Design System (2026-04-18)
   Palette navy/blue/amber — typography Poppins + Sono — 8px grid.
   ========================================================================== */

/* ---------- CSS Reset + Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: 'Poppins', system-ui, -apple-system, sans-serif; color: var(--color-text); background: var(--color-bg); line-height: 1.6; font-weight: 400; -webkit-font-smoothing: antialiased; }
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.15; letter-spacing: -0.015em; color: var(--color-heading); }
ul, ol { list-style: none; }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- Design Tokens ---------- */
:root {
  /* Palette */
  --color-bg: #ffffff;
  --color-bg-soft: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-ink: #0f172a;
  --color-ink-soft: #1e293b;
  --color-text: #334155;
  --color-heading: #0f172a;
  --color-muted: #64748b;
  --color-line: rgba(15, 23, 42, 0.08);
  --color-line-strong: rgba(15, 23, 42, 0.14);

  /* Accents */
  --color-accent: #3b82f6;
  --color-accent-dark: #2563eb;
  --color-accent-soft: #dbeafe;
  --color-amber: #f59e0b;
  --color-amber-dark: #d97706;
  --color-amber-soft: #fef3c7;
  --color-green: #10b981;
  --color-pink: #ec4899;
  --color-purple: #8b5cf6;

  /* Gradients */
  --grad-hero: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
  --grad-amber: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --grad-cool: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
  --grad-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);

  /* Type scale (modular 1.25) */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 2rem;
  --fs-4xl: 2.625rem;
  --fs-5xl: 3.5rem;
  --fs-6xl: 4.5rem;

  /* Spacing (8px base) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  /* Radii */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* Shadows */
  --sh-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --sh-md: 0 4px 14px rgba(15, 23, 42, 0.07);
  --sh-lg: 0 12px 32px rgba(15, 23, 42, 0.10);
  --sh-xl: 0 24px 64px rgba(15, 23, 42, 0.14);
  --sh-glow: 0 12px 40px rgba(59, 130, 246, 0.28);

  /* Transitions */
  --tr-fast: 0.15s ease;
  --tr-med: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --tr-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-w: 1280px;
  --max-w-narrow: 960px;
  --max-w-article: 720px;
  --nav-h: 72px;
}

/* ---------- Typography ---------- */
.font-mono { font-family: 'Sono', 'JetBrains Mono', ui-monospace, monospace; letter-spacing: -0.02em; }
.eyebrow { display: inline-flex; align-items: center; gap: var(--s-2); font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; color: var(--color-accent); padding: 4px 12px; background: var(--color-accent-soft); border-radius: var(--r-pill); margin-bottom: var(--s-5); }
.eyebrow--amber { color: var(--color-amber-dark); background: var(--color-amber-soft); }
.eyebrow--dark { color: rgba(255, 255, 255, 0.9); background: rgba(255, 255, 255, 0.1); }

h1, .h1 { font-size: clamp(2.5rem, 5.5vw, 4rem); line-height: 1.05; letter-spacing: -0.025em; }
h2, .h2 { font-size: clamp(2rem, 4vw, 2.75rem); line-height: 1.1; letter-spacing: -0.02em; }
h3, .h3 { font-size: clamp(1.5rem, 2.5vw, 1.875rem); }
h4, .h4 { font-size: 1.25rem; }
.lead { font-size: clamp(1.125rem, 1.5vw, 1.3rem); color: var(--color-muted); line-height: 1.6; max-width: 680px; }
.text-balance { text-wrap: balance; }
.text-gradient { background: var(--grad-hero); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.text-amber { color: var(--color-amber-dark); }
.text-muted { color: var(--color-muted); }
.small { font-size: var(--fs-sm); }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--s-5); }
.container--narrow { max-width: var(--max-w-narrow); }
.container--article { max-width: var(--max-w-article); }
.section { padding: var(--s-10) 0; }
.section--sm { padding: var(--s-8) 0; }
.section--lg { padding: calc(var(--s-10) + 2rem) 0; }
.section--dark { background: var(--color-ink); color: rgba(255, 255, 255, 0.88); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: #ffffff; }
.section--dark .text-muted { color: rgba(255, 255, 255, 0.66); }
.section--soft { background: var(--color-bg-soft); }
.section--alt { background: var(--color-bg-alt); }
.section__head { text-align: center; max-width: 820px; margin: 0 auto var(--s-8); }
.section__head--left { text-align: left; }

.grid { display: grid; gap: var(--s-5); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--s-6); }

.flex { display: flex; gap: var(--s-4); }
.flex-center { align-items: center; justify-content: center; }
.flex-between { justify-content: space-between; align-items: center; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.divider { height: 1px; background: var(--color-line); margin: var(--s-7) 0; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2); padding: 0.875rem 1.5rem; border-radius: var(--r-md); font-weight: 600; font-size: var(--fs-base); transition: transform var(--tr-fast), box-shadow var(--tr-med), background var(--tr-fast); white-space: nowrap; cursor: pointer; border: 2px solid transparent; }
.btn:active { transform: scale(0.98); }
.btn--primary { background: var(--color-ink); color: #ffffff; }
.btn--primary:hover { background: var(--color-ink-soft); transform: translateY(-2px); box-shadow: var(--sh-lg); }
.btn--accent { background: var(--color-accent); color: #ffffff; box-shadow: var(--sh-glow); }
.btn--accent:hover { background: var(--color-accent-dark); transform: translateY(-2px); box-shadow: 0 16px 48px rgba(59, 130, 246, 0.4); }
.btn--amber { background: var(--color-amber); color: #ffffff; }
.btn--amber:hover { background: var(--color-amber-dark); transform: translateY(-2px); }
.btn--ghost { background: transparent; border: 2px solid var(--color-ink); color: var(--color-ink); }
.btn--ghost:hover { background: var(--color-ink); color: #ffffff; }
.btn--ghost-light { background: transparent; border: 2px solid rgba(255, 255, 255, 0.2); color: #ffffff; }
.btn--ghost-light:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.4); }
.btn--link { padding: 0; font-weight: 600; color: var(--color-accent); border: 0; }
.btn--link:hover { color: var(--color-accent-dark); }
.btn--lg { padding: 1.125rem 2rem; font-size: var(--fs-lg); border-radius: 12px; }
.btn--sm { padding: 0.5rem 0.875rem; font-size: var(--fs-sm); }
.btn__arrow { transition: transform var(--tr-fast); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ---------- Navigation ---------- */
.site-nav { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.88); backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--color-line); }
.site-nav__inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: var(--s-6); }
.site-nav__brand { display: inline-flex; align-items: center; gap: var(--s-3); font-weight: 800; font-size: 1.25rem; color: var(--color-ink); letter-spacing: -0.02em; }
.site-nav__brand-mark { width: 36px; height: 36px; border-radius: var(--r-md); background: var(--grad-hero); display: grid; place-items: center; color: #ffffff; font-weight: 900; font-size: 14px; letter-spacing: 0; }
.site-nav__menu { display: flex; align-items: center; gap: var(--s-6); list-style: none; }
.site-nav__link { font-size: 0.95rem; font-weight: 500; color: var(--color-ink-soft); position: relative; display: inline-flex; align-items: center; gap: 4px; padding: 6px 0; transition: color var(--tr-fast); }
.site-nav__link:hover { color: var(--color-accent); }
.site-nav__link.is-active { color: var(--color-ink); }
.site-nav__link.is-active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--color-accent); border-radius: 2px; }
.site-nav__caret { font-size: 10px; opacity: 0.7; }

.site-nav__item--dropdown { position: relative; }
.site-nav__item--dropdown::before { content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 14px; }
.site-nav__dropdown { position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(8px); min-width: 720px; background: #ffffff; border-radius: var(--r-xl); padding: 1.5rem; box-shadow: var(--sh-xl); border: 1px solid var(--color-line); opacity: 0; visibility: hidden; transition: all var(--tr-med); display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
.site-nav__item--dropdown:hover .site-nav__dropdown, .site-nav__item--dropdown:focus-within .site-nav__dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.site-nav__dropdown-item { display: grid; grid-template-columns: 44px 1fr; gap: var(--s-3); padding: 0.75rem 1rem; border-radius: var(--r-md); transition: background var(--tr-fast); }
.site-nav__dropdown-item:hover { background: var(--color-bg-soft); }
.site-nav__dropdown-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--color-accent-soft); color: var(--color-accent); display: grid; place-items: center; font-size: 18px; }
.site-nav__dropdown-title { font-weight: 600; color: var(--color-ink); font-size: 0.95rem; margin-bottom: 2px; }
.site-nav__dropdown-desc { font-size: 0.8rem; color: var(--color-muted); }

.site-nav__cta { display: flex; gap: var(--s-3); align-items: center; }
.site-nav__toggle { display: none; width: 40px; height: 40px; border-radius: var(--r-md); background: var(--color-bg-soft); align-items: center; justify-content: center; border: 1px solid var(--color-line); }

/* Hamburger */
.hamburger { width: 22px; height: 2px; background: var(--color-ink); position: relative; display: block; }
.hamburger::before, .hamburger::after { content: ''; position: absolute; left: 0; width: 100%; height: 2px; background: var(--color-ink); transition: transform var(--tr-fast); }
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* ---------- Hero ---------- */
.hero { padding: var(--s-10) 0 var(--s-9); position: relative; overflow: hidden; }
.hero--dark { background: var(--color-ink); color: #ffffff; }
.hero--gradient { background: var(--grad-dark); color: #ffffff; }
.hero__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--s-8); align-items: center; }
.hero__grid--center { grid-template-columns: 1fr; text-align: center; max-width: 900px; margin: 0 auto; }
.hero__title { font-size: clamp(2.75rem, 6vw, 4.75rem); line-height: 1.02; letter-spacing: -0.03em; margin-bottom: var(--s-5); }
.hero__subtitle { font-size: clamp(1.125rem, 1.7vw, 1.375rem); color: var(--color-muted); line-height: 1.55; max-width: 640px; margin-bottom: var(--s-7); }
.hero--dark .hero__subtitle { color: rgba(255, 255, 255, 0.78); }
.hero__cta { display: flex; gap: var(--s-4); flex-wrap: wrap; }
.hero__trust { display: flex; gap: var(--s-4); align-items: center; margin-top: var(--s-6); flex-wrap: wrap; font-size: var(--fs-sm); color: var(--color-muted); }
.hero__trust-item { display: inline-flex; gap: 6px; align-items: center; }
.hero__visual { position: relative; }
.hero__visual-card { background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-xl); padding: var(--s-6); box-shadow: var(--sh-xl); position: relative; overflow: hidden; }
.hero__blob { position: absolute; width: 520px; height: 520px; border-radius: 50%; filter: blur(100px); opacity: 0.4; z-index: 0; pointer-events: none; }
.hero__blob--1 { background: var(--color-accent); top: -150px; right: -150px; }
.hero__blob--2 { background: var(--color-pink); bottom: -200px; left: 20%; opacity: 0.28; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0; border-radius: var(--r-xl); overflow: hidden; background: var(--color-ink); }
.stat { padding: var(--s-6); border-right: 1px solid rgba(255, 255, 255, 0.08); border-bottom: 1px solid rgba(255, 255, 255, 0.08); text-align: left; }
.stat:last-child { border-right: 0; }
.stat__value { font-family: 'Sono', monospace; font-size: clamp(2.25rem, 3.5vw, 3rem); font-weight: 800; color: #ffffff; letter-spacing: -0.03em; line-height: 1; margin-bottom: var(--s-2); }
.stat__label { font-size: var(--fs-sm); color: rgba(255, 255, 255, 0.66); line-height: 1.4; }

.stats-inline { display: flex; flex-wrap: wrap; gap: var(--s-7); margin-top: var(--s-7); }
.stats-inline .stat { padding: 0; border: 0; background: transparent; color: inherit; }
.stats-inline .stat__value { color: inherit; font-size: 2.5rem; }

/* ---------- Cards ---------- */
.card { background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-xl); padding: var(--s-6); transition: border-color var(--tr-fast), transform var(--tr-med), box-shadow var(--tr-med); display: flex; flex-direction: column; gap: var(--s-3); position: relative; overflow: hidden; }
.card:hover { border-color: var(--color-line-strong); transform: translateY(-4px); box-shadow: var(--sh-lg); }
.card__icon { width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center; font-size: 24px; margin-bottom: var(--s-2); }
.card__icon--blue { background: var(--color-accent-soft); color: var(--color-accent); }
.card__icon--amber { background: var(--color-amber-soft); color: var(--color-amber-dark); }
.card__icon--green { background: #d1fae5; color: #059669; }
.card__icon--pink { background: #fce7f3; color: var(--color-pink); }
.card__icon--purple { background: #ede9fe; color: var(--color-purple); }
.card__icon--ink { background: var(--color-ink); color: #ffffff; }
.card__title { font-size: 1.125rem; font-weight: 700; color: var(--color-heading); line-height: 1.3; }
.card__desc { font-size: 0.925rem; color: var(--color-muted); line-height: 1.55; margin-bottom: var(--s-2); flex: 1; }
.card__link { font-weight: 600; color: var(--color-accent); display: inline-flex; gap: 6px; align-items: center; font-size: 0.925rem; }
.card__link:hover { color: var(--color-accent-dark); }
.card__link:hover .btn__arrow { transform: translateX(3px); }

.card--feature { padding: var(--s-7); }
.card--dark { background: var(--color-ink); color: rgba(255, 255, 255, 0.85); border-color: rgba(255, 255, 255, 0.08); }
.card--dark .card__title { color: #ffffff; }
.card--dark .card__desc { color: rgba(255, 255, 255, 0.7); }
.card--dark:hover { border-color: rgba(255, 255, 255, 0.2); }
.card--gradient { background: var(--grad-hero); color: #ffffff; border: 0; }
.card--gradient .card__title, .card--gradient .card__desc { color: #ffffff; }
.card--gradient:hover { transform: translateY(-4px); }

/* Case study card */
.case-card { border-radius: var(--r-xl); overflow: hidden; position: relative; background: var(--color-ink); min-height: 360px; display: flex; flex-direction: column; justify-content: flex-end; padding: var(--s-7); color: #ffffff; isolation: isolate; transition: transform var(--tr-med); }
.case-card::before { content: ''; position: absolute; inset: 0; z-index: -2; background: var(--grad-dark); }
.case-card::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(15, 23, 42, 0.4) 0%, rgba(15, 23, 42, 0.88) 100%); }
.case-card:hover { transform: translateY(-4px); }
.case-card--gradient-1::before { background: linear-gradient(135deg, #3b82f6, #8b5cf6); }
.case-card--gradient-2::before { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.case-card--gradient-3::before { background: linear-gradient(135deg, #10b981, #0ea5e9); }
.case-card--gradient-4::before { background: linear-gradient(135deg, #ec4899, #8b5cf6); }
.case-card__meta { display: flex; gap: var(--s-3); margin-bottom: var(--s-4); font-size: var(--fs-sm); opacity: 0.8; }
.case-card__title { font-size: clamp(1.25rem, 2vw, 1.625rem); color: #ffffff; margin-bottom: var(--s-3); line-height: 1.25; }
.case-card__desc { color: rgba(255, 255, 255, 0.84); font-size: 0.95rem; margin-bottom: var(--s-4); }
.case-card__metrics { display: flex; gap: var(--s-5); margin-bottom: var(--s-4); }
.case-card__metric-value { font-family: 'Sono', monospace; font-size: 1.5rem; font-weight: 800; display: block; }
.case-card__metric-label { font-size: 0.75rem; opacity: 0.7; }
.case-card__cta { color: #ffffff; font-weight: 600; display: inline-flex; gap: 6px; align-items: center; }

/* Industry tile */
.industry { padding: var(--s-6); background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-lg); transition: all var(--tr-med); display: flex; flex-direction: column; gap: var(--s-2); }
.industry:hover { border-color: var(--color-accent); transform: translateY(-3px); box-shadow: var(--sh-md); }
.industry__emoji { font-size: 2rem; margin-bottom: var(--s-2); }
.industry__title { font-weight: 700; font-size: 1rem; color: var(--color-ink); }
.industry__tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: var(--s-2); }
.industry__tag { font-size: 0.7rem; padding: 2px 8px; background: var(--color-bg-alt); border-radius: var(--r-pill); color: var(--color-muted); }

/* Process steps */
.process-steps { display: grid; gap: var(--s-5); }
.process-step { display: grid; grid-template-columns: 80px 1fr; gap: var(--s-5); align-items: flex-start; padding: var(--s-6); background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-lg); }
.process-step__num { font-family: 'Sono', monospace; font-size: 2.5rem; font-weight: 800; color: var(--color-accent); line-height: 1; letter-spacing: -0.03em; }
.process-step__title { font-size: 1.25rem; font-weight: 700; margin-bottom: var(--s-2); }
.process-step__desc { color: var(--color-muted); line-height: 1.6; }

/* Feature list with checks */
.feature-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--s-3); }
.feature-list__item { display: grid; grid-template-columns: 28px 1fr; gap: var(--s-3); font-size: 0.95rem; color: var(--color-text); line-height: 1.5; }
.feature-list__item::before { content: '✓'; width: 24px; height: 24px; border-radius: 50%; background: var(--color-accent-soft); color: var(--color-accent); display: grid; place-items: center; font-weight: 800; font-size: 13px; margin-top: 2px; }
.feature-list--dark .feature-list__item { color: rgba(255, 255, 255, 0.85); }
.feature-list--dark .feature-list__item::before { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }

/* Testimonials */
.testimonial { padding: var(--s-7); background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-xl); position: relative; }
.testimonial__quote { font-size: 1.125rem; line-height: 1.6; color: var(--color-ink); margin-bottom: var(--s-5); font-weight: 500; }
.testimonial__author { display: grid; grid-template-columns: 44px 1fr; gap: var(--s-3); align-items: center; }
.testimonial__avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--grad-cool); color: #ffffff; display: grid; place-items: center; font-weight: 700; }
.testimonial__name { font-weight: 600; color: var(--color-ink); font-size: 0.95rem; }
.testimonial__role { font-size: 0.8rem; color: var(--color-muted); }
.testimonial__stars { color: var(--color-amber); margin-bottom: var(--s-3); font-size: 1rem; }

/* Logo band */
.logos { display: flex; flex-wrap: wrap; gap: var(--s-7); justify-content: center; align-items: center; opacity: 0.78; }
.logos__item { font-size: 1.25rem; font-weight: 700; color: var(--color-muted); letter-spacing: -0.02em; font-family: 'Poppins', sans-serif; opacity: 0.6; transition: opacity var(--tr-fast); }
.logos__item:hover { opacity: 1; color: var(--color-ink); }

/* CTA band */
.cta-band { background: var(--grad-dark); color: #ffffff; border-radius: var(--r-xl); padding: var(--s-9) var(--s-7); text-align: center; position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset: -100px; background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.25), transparent 50%), radial-gradient(circle at 70% 40%, rgba(236, 72, 153, 0.18), transparent 50%); pointer-events: none; }
.cta-band__title { font-size: clamp(1.75rem, 3vw, 2.5rem); margin-bottom: var(--s-4); color: #ffffff; position: relative; }
.cta-band__desc { color: rgba(255, 255, 255, 0.82); max-width: 600px; margin: 0 auto var(--s-6); position: relative; }
.cta-band__buttons { display: flex; gap: var(--s-3); justify-content: center; flex-wrap: wrap; position: relative; }

/* Team member */
.team-card { background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-xl); padding: var(--s-5); text-align: center; transition: all var(--tr-med); }
.team-card:hover { border-color: var(--color-accent); transform: translateY(-4px); box-shadow: var(--sh-md); }
.team-card__avatar { width: 96px; height: 96px; border-radius: 50%; margin: 0 auto var(--s-4); background: var(--grad-cool); color: #ffffff; display: grid; place-items: center; font-weight: 800; font-size: 1.75rem; letter-spacing: -0.02em; }
.team-card__avatar--2 { background: var(--grad-amber); }
.team-card__avatar--3 { background: linear-gradient(135deg, #10b981, #3b82f6); }
.team-card__avatar--4 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.team-card__name { font-size: 1.125rem; font-weight: 700; margin-bottom: 4px; }
.team-card__role { font-size: 0.875rem; color: var(--color-muted); margin-bottom: var(--s-3); }
.team-card__bio { font-size: 0.875rem; color: var(--color-text); line-height: 1.5; }

/* Article card */
.article-card { background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-xl); overflow: hidden; display: flex; flex-direction: column; transition: all var(--tr-med); }
.article-card:hover { transform: translateY(-4px); box-shadow: var(--sh-lg); border-color: var(--color-line-strong); }
.article-card__thumb { aspect-ratio: 16/9; background: var(--grad-cool); position: relative; overflow: hidden; }
.article-card__thumb--2 { background: var(--grad-amber); }
.article-card__thumb--3 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.article-card__thumb--4 { background: linear-gradient(135deg, #10b981, #0ea5e9); }
.article-card__thumb-emoji { position: absolute; inset: 0; display: grid; place-items: center; font-size: 3.5rem; filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2)); }
.article-card__body { padding: var(--s-6); display: flex; flex-direction: column; gap: var(--s-2); flex: 1; }
.article-card__meta { display: flex; gap: var(--s-3); font-size: 0.75rem; color: var(--color-muted); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }
.article-card__title { font-size: 1.125rem; font-weight: 700; line-height: 1.3; }
.article-card__desc { color: var(--color-muted); font-size: 0.9rem; line-height: 1.55; flex: 1; }

/* Forms */
.form { display: flex; flex-direction: column; gap: var(--s-4); }
.form__row { display: grid; gap: var(--s-4); grid-template-columns: 1fr 1fr; }
.form__row--single { grid-template-columns: 1fr; }
.form__field { display: flex; flex-direction: column; gap: 6px; }
.form__label { font-size: var(--fs-sm); font-weight: 600; color: var(--color-ink); }
.form__input, .form__textarea, .form__select { padding: 12px 14px; border: 1px solid var(--color-line-strong); border-radius: var(--r-md); background: #ffffff; font-size: 0.95rem; transition: border-color var(--tr-fast), box-shadow var(--tr-fast); }
.form__input:focus, .form__textarea:focus, .form__select:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.14); outline: none; }
.form__textarea { resize: vertical; min-height: 140px; font-family: inherit; }
.form__checkbox { display: inline-flex; gap: 10px; align-items: flex-start; font-size: var(--fs-sm); color: var(--color-muted); line-height: 1.4; }
.form__checkbox input { margin-top: 3px; accent-color: var(--color-accent); }
.form__status { padding: 12px 16px; border-radius: var(--r-md); font-size: var(--fs-sm); }
.form__status--ok { background: #d1fae5; color: #065f46; border: 1px solid rgba(16, 185, 129, 0.3); }
.form__status--err { background: #fee2e2; color: #991b1b; border: 1px solid rgba(239, 68, 68, 0.3); }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: var(--r-pill); font-size: 0.75rem; font-weight: 600; }
.badge--blue { background: var(--color-accent-soft); color: var(--color-accent-dark); }
.badge--amber { background: var(--color-amber-soft); color: var(--color-amber-dark); }
.badge--green { background: #d1fae5; color: #047857; }
.badge--pink { background: #fce7f3; color: #be185d; }

/* Split section (image/text) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-8); align-items: center; }
.split--reverse > :first-child { order: 2; }
.split__media { aspect-ratio: 4/3; border-radius: var(--r-xl); overflow: hidden; background: var(--grad-cool); position: relative; display: grid; place-items: center; color: #ffffff; font-size: 4rem; }
.split__media--2 { background: var(--grad-amber); }
.split__media--3 { background: linear-gradient(135deg, #10b981, #3b82f6); }
.split__media--4 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }

/* Accordion / FAQ */
.faq { display: flex; flex-direction: column; gap: var(--s-3); }
.faq__item { background: #ffffff; border: 1px solid var(--color-line); border-radius: var(--r-lg); overflow: hidden; }
.faq__item[open] { border-color: var(--color-accent); box-shadow: var(--sh-md); }
.faq__question { padding: var(--s-4) var(--s-5); font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); color: var(--color-ink); }
.faq__question::after { content: '+'; font-size: 1.5rem; color: var(--color-accent); font-weight: 400; transition: transform var(--tr-fast); }
.faq__item[open] .faq__question::after { transform: rotate(45deg); }
.faq__answer { padding: 0 var(--s-5) var(--s-5); color: var(--color-muted); line-height: 1.6; }

/* Breadcrumb */
.breadcrumb { display: flex; gap: 8px; font-size: var(--fs-sm); color: var(--color-muted); margin-bottom: var(--s-4); flex-wrap: wrap; }
.breadcrumb a { color: var(--color-muted); transition: color var(--tr-fast); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb__sep { opacity: 0.4; }
.breadcrumb__current { color: var(--color-ink); font-weight: 500; }

/* Article prose */
.prose { max-width: 720px; margin: 0 auto; font-size: 1.0625rem; line-height: 1.75; color: var(--color-text); }
.prose h2 { margin-top: var(--s-8); margin-bottom: var(--s-4); font-size: 1.75rem; }
.prose h3 { margin-top: var(--s-7); margin-bottom: var(--s-3); font-size: 1.35rem; }
.prose p { margin-bottom: var(--s-4); }
.prose ul, .prose ol { margin: var(--s-4) 0 var(--s-4) var(--s-5); }
.prose li { margin-bottom: var(--s-2); }
.prose blockquote { border-left: 3px solid var(--color-accent); padding: var(--s-3) var(--s-5); margin: var(--s-6) 0; background: var(--color-bg-soft); color: var(--color-ink); font-weight: 500; border-radius: 0 var(--r-md) var(--r-md) 0; }
.prose img { border-radius: var(--r-lg); margin: var(--s-6) 0; }
.prose a { color: var(--color-accent); text-decoration: underline; text-decoration-color: rgba(59, 130, 246, 0.3); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--color-accent); }
.prose code { background: var(--color-bg-alt); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; color: var(--color-ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); color: rgba(255, 255, 255, 0.7); padding: var(--s-9) 0 var(--s-6); }
.site-footer__grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: var(--s-7); margin-bottom: var(--s-7); }
.site-footer__brand { display: flex; flex-direction: column; gap: var(--s-4); }
.site-footer__logo { display: inline-flex; align-items: center; gap: var(--s-3); color: #ffffff; font-weight: 800; font-size: 1.25rem; }
.site-footer__tagline { color: rgba(255, 255, 255, 0.6); font-size: 0.925rem; line-height: 1.6; max-width: 320px; }
.site-footer__social { display: flex; gap: var(--s-3); margin-top: var(--s-3); }
.site-footer__social-link { width: 36px; height: 36px; border-radius: 10px; background: rgba(255, 255, 255, 0.06); display: grid; place-items: center; transition: background var(--tr-fast); color: rgba(255, 255, 255, 0.78); }
.site-footer__social-link:hover { background: var(--color-accent); color: #ffffff; }
.site-footer__col-title { color: #ffffff; font-weight: 600; font-size: 0.95rem; margin-bottom: var(--s-4); }
.site-footer__list { display: flex; flex-direction: column; gap: 10px; }
.site-footer__list a { color: rgba(255, 255, 255, 0.65); font-size: 0.9rem; transition: color var(--tr-fast); }
.site-footer__list a:hover { color: #ffffff; }
.site-footer__bottom { display: flex; justify-content: space-between; align-items: center; padding-top: var(--s-5); border-top: 1px solid rgba(255, 255, 255, 0.08); flex-wrap: wrap; gap: var(--s-3); }
.site-footer__copy { font-size: var(--fs-sm); color: rgba(255, 255, 255, 0.5); }
.site-footer__legal { display: flex; gap: var(--s-5); font-size: var(--fs-sm); }
.site-footer__legal a { color: rgba(255, 255, 255, 0.5); }
.site-footer__legal a:hover { color: #ffffff; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--tr-slow), transform var(--tr-slow); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
  .split { grid-template-columns: 1fr; }
  .split--reverse > :first-child { order: initial; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-6); }
  .site-nav__dropdown { left: auto; right: 0; transform: none; min-width: 520px; }
  .site-nav__item--dropdown:hover .site-nav__dropdown, .site-nav__item--dropdown:focus-within .site-nav__dropdown { transform: none; }
  .process-step { grid-template-columns: 1fr; gap: var(--s-3); }
}

@media (max-width: 768px) {
  .site-nav__menu, .site-nav__cta .btn--primary { display: none; }
  .site-nav__toggle { display: flex; }
  .site-nav.is-open .site-nav__menu { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: #ffffff; padding: var(--s-5); gap: var(--s-3); border-bottom: 1px solid var(--color-line); box-shadow: var(--sh-lg); align-items: flex-start; }
  .site-nav.is-open .site-nav__link { padding: 10px 0; width: 100%; border-bottom: 1px solid var(--color-line); }
  .site-nav.is-open .site-nav__dropdown { position: static; opacity: 1; visibility: visible; transform: none; display: block; box-shadow: none; border: 0; padding: 0 0 0 var(--s-4); min-width: 0; }
  .section { padding: var(--s-8) 0; }
  .hero { padding: var(--s-8) 0 var(--s-7); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-right: 1px solid rgba(255, 255, 255, 0.08); }
  .stat:nth-child(even) { border-right: 0; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .cta-band { padding: var(--s-7) var(--s-5); }
  .case-card { min-height: 300px; padding: var(--s-5); }
  .case-card__metrics { gap: var(--s-4); }
}

/* ---------- Utilities ---------- */
.mt-0 { margin-top: 0 !important; }
.mt-2 { margin-top: var(--s-2); }
.mt-4 { margin-top: var(--s-4); }
.mt-6 { margin-top: var(--s-6); }
.mt-8 { margin-top: var(--s-8); }
.mb-4 { margin-bottom: var(--s-4); }
.mb-6 { margin-bottom: var(--s-6); }
.text-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }