:root {
  --ink: #101d2c;
  --ink-2: #183149;
  --paper: #f7f8f4;
  --white: #ffffff;
  --lime: #c8f04b;
  --lime-dark: #8db118;
  --sky: #82d8f7;
  --coral: #ff765e;
  --muted: #5e6b78;
  --line: #d9dfdf;
  --soft: #edf1ec;
  --danger: #b52e3b;
  --success: #267453;
  --shadow: 0 18px 55px rgba(16, 29, 44, .12);
  --radius: 22px;
  --radius-sm: 12px;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  padding: .8rem 1rem;
  background: var(--lime);
  color: var(--ink);
  border-radius: 8px;
  font-weight: 800;
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: rgba(16, 29, 44, .95);
  color: var(--white);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  width: min(calc(100% - 2rem), var(--max));
  min-height: 72px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .72rem;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: -.02em;
}

.brand-mark {
  width: 34px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--lime);
  border-radius: 10px 10px 10px 2px;
  font-size: .86rem;
}

.main-nav { display: flex; align-items: center; gap: .3rem; }
.main-nav a {
  padding: .58rem .78rem;
  border-radius: 9px;
  text-decoration: none;
  color: #dfe8ef;
  font-weight: 700;
  font-size: .93rem;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--ink); background: var(--lime); }
.nav-toggle {
  display: none;
  color: var(--white);
  border: 1px solid rgba(255,255,255,.25);
  background: transparent;
  border-radius: 10px;
  padding: .45rem .7rem;
}

.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-dark { color: var(--white); background: var(--ink); }
.section-soft { background: var(--soft); }

.hero {
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 86% 15%, rgba(130,216,247,.22), transparent 24rem),
    linear-gradient(135deg, #0c1a28 0%, #183149 70%, #21465f 100%);
}
.hero-grid {
  min-height: 590px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  gap: 4rem;
  padding: 5.5rem 0;
}
.hero-compact .hero-grid { min-height: 410px; padding: 3.5rem 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1rem;
  color: var(--lime);
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 28px; height: 3px; background: currentColor; border-radius: 9px; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; }
h1 { max-width: 900px; margin: 0; font-size: clamp(2.7rem, 7vw, 5.8rem); }
.hero-compact h1 { font-size: clamp(2.3rem, 5vw, 4.5rem); }
h2 { margin: 0 0 1rem; font-size: clamp(2rem, 4.4vw, 3.5rem); }
h3 { margin: 0 0 .65rem; font-size: 1.35rem; }
.lead { max-width: 740px; font-size: clamp(1.08rem, 2vw, 1.3rem); color: #d8e4ec; }
.intro { max-width: 760px; color: var(--muted); font-size: 1.08rem; }

.hero-card {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border-radius: 34px 34px 34px 6px;
  box-shadow: 0 28px 70px rgba(0,0,0,.28);
}
.hero-card img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; }
.hero-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 45%, rgba(7,15,23,.84)); }
.hero-card-note { position: absolute; z-index: 2; left: 1.5rem; right: 1.5rem; bottom: 1.4rem; }
.hero-card-note strong { display: block; font-size: 1.25rem; }

.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.7rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .75rem 1.08rem;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
  font-weight: 850;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 9px 24px rgba(16,29,44,.18); }
.button-lime { color: var(--ink); background: var(--lime); border-color: var(--lime); }
.button-light { color: var(--white); background: transparent; border-color: rgba(255,255,255,.38); }
.button-small { min-height: 40px; padding: .55rem .82rem; font-size: .9rem; }

.project-toolbar, .toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
  margin: 1.75rem 0 2rem;
}
.search-field, .select-field, .form-field input, .form-field textarea, .form-field select {
  width: 100%;
  min-height: 48px;
  border: 1px solid #bac5c8;
  border-radius: 11px;
  background: var(--white);
  color: var(--ink);
  padding: .72rem .9rem;
}
.search-field { max-width: 360px; }
.select-field { max-width: 230px; }
.search-field:focus, .select-field:focus, .form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: 3px solid rgba(130,216,247,.45); border-color: var(--ink-2); }

.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

.card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 8px 28px rgba(16,29,44,.06);
}
.card-body { padding: 1.35rem; }
.card-media { height: 220px; background: var(--ink-2); }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card p { color: var(--muted); }
.card-link { text-decoration: none; }
.card-link:hover .card { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-link .card { height: 100%; transition: .2s ease; }
.tag-row { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
.tag, .status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: .22rem .58rem;
  border-radius: 999px;
  color: #344454;
  background: #eaf0f2;
  font-size: .76rem;
  font-weight: 800;
}
.tag-lime { color: #35420a; background: #e8f8af; }
.tag-coral { color: #6f1d10; background: #ffe1db; }
.tag-sky { color: #16455a; background: #d8f3fd; }

.number { color: var(--lime-dark); font-size: .85rem; font-weight: 950; letter-spacing: .12em; }
.kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: .8rem; margin: 2rem 0; }
.kpi { padding: 1.15rem; border-radius: 16px; background: var(--white); border: 1px solid var(--line); }
.kpi strong { display: block; font-size: 1.75rem; line-height: 1.1; }
.kpi span { color: var(--muted); font-size: .84rem; font-weight: 750; }

.feature-list { display: grid; gap: .75rem; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 1.7rem; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 950; }
.plain-list { padding-left: 1.2rem; }
.plain-list li + li { margin-top: .45rem; }

.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3rem; align-items: start; }
.sticky { position: sticky; top: 100px; }
.callout { padding: 1.4rem; border-left: 5px solid var(--lime-dark); border-radius: 0 15px 15px 0; background: #eff7d6; }
.callout-blue { border-color: #3299c0; background: #e8f7fc; }
.callout-coral { border-color: var(--coral); background: #fff0ed; }
.callout p:last-child { margin-bottom: 0; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: .85rem .9rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--white); background: var(--ink-2); font-size: .84rem; letter-spacing: .04em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #f4f8f0; }

.subnav { border-bottom: 1px solid var(--line); background: var(--white); }
.subnav .container { display: flex; gap: .35rem; overflow-x: auto; padding-block: .75rem; }
.subnav a { white-space: nowrap; padding: .45rem .7rem; border-radius: 8px; text-decoration: none; font-weight: 750; color: var(--muted); }
.subnav a:hover, .subnav a[aria-current="page"] { color: var(--ink); background: var(--soft); }

.project-banner { padding: 1.6rem 0; color: var(--white); background: #24465b; }
.project-banner .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.project-banner p { margin: 0; }

.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 3rem; align-items: start; }
.article-content { max-width: 760px; }
.article-content p, .article-content li { font-size: 1.06rem; }
.article-content h2 { margin-top: 2.7rem; font-size: 2.1rem; }
.article-content h3 { margin-top: 1.8rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: .8rem; color: var(--muted); font-size: .9rem; margin: 1.2rem 0 2rem; }
.sidebar-box { padding: 1.1rem; border-radius: 15px; background: var(--white); border: 1px solid var(--line); }

.product-card { position: relative; }
.product-price { font-size: 1.25rem; font-weight: 900; }
.product-old { color: var(--muted); text-decoration: line-through; font-size: .9rem; }
.qty { width: 72px; min-height: 42px; border: 1px solid var(--line); border-radius: 9px; padding: .4rem; }
.cart-count { display: inline-grid; min-width: 22px; min-height: 22px; place-items: center; border-radius: 99px; background: var(--coral); font-size: .75rem; }

.thumb-card { background: #0e1d2a; color: white; }
.thumb-card .card-media { height: auto; aspect-ratio: 16/9; }
.thumb-card p { color: #cbd8df; }

.gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1.2rem; }
.gallery-item { margin: 0; padding: .75rem; background: var(--white); border-radius: 16px; border: 1px solid var(--line); }
.gallery-item img { width: 100%; border-radius: 10px; background: #dfe5e3; }
.gallery-item figcaption { padding: .7rem .2rem .1rem; font-weight: 800; }
.gallery-stories { grid-template-columns: repeat(3, minmax(0, 280px)); justify-content: center; }

.severity-high { color: #7c1520; background: #ffdce0; }
.severity-medium { color: #6b4d00; background: #fff0b8; }
.severity-low { color: #174a65; background: #d8f1fb; }
.check-row { display: flex; gap: .85rem; align-items: flex-start; padding: .9rem 0; border-bottom: 1px solid var(--line); }
.check-row input { margin-top: .35rem; width: 20px; height: 20px; accent-color: var(--success); }
.progress-track { height: 12px; overflow: hidden; border-radius: 99px; background: #dce3df; }
.progress-bar { width: 0; height: 100%; background: var(--lime-dark); transition: width .25s ease; }

.email-template { padding: 1.2rem; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.email-template pre { white-space: pre-wrap; font: inherit; color: var(--muted); }

.schedule-filter button { border: 1px solid var(--line); border-radius: 99px; background: var(--white); padding: .55rem .8rem; font-weight: 800; }
.schedule-filter button.active { background: var(--ink); color: var(--white); }
.class-card { display: grid; grid-template-columns: 90px 1fr auto; gap: 1rem; align-items: center; padding: 1rem; border-bottom: 1px solid var(--line); }
.class-card:last-child { border-bottom: 0; }
.class-time { font-weight: 900; }

.faq-item { border-bottom: 1px solid var(--line); }
.faq-question { width: 100%; display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; border: 0; background: transparent; text-align: left; font-weight: 850; }
.faq-answer { display: none; padding: 0 0 1rem; color: var(--muted); }
.faq-item.open .faq-answer { display: block; }

.form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; }
.form-field { display: grid; gap: .35rem; }
.form-field label { font-weight: 800; }
.form-field-full { grid-column: 1 / -1; }
.form-message { min-height: 1.5rem; color: var(--success); font-weight: 800; }

.notice { padding: 1rem; border: 1px dashed #9ba8aa; border-radius: 12px; color: var(--muted); background: rgba(255,255,255,.55); }
.back-link { display: inline-flex; margin-bottom: 1.2rem; text-decoration: none; font-weight: 850; color: var(--lime-dark); }

.site-footer { padding: 3.6rem 0 1.5rem; color: #dbe5eb; background: #0a1520; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3,1fr); gap: 2rem; }
.footer-grid h3 { color: var(--white); font-size: 1rem; }
.footer-grid a { display: block; color: #c3d0d8; text-decoration: none; margin: .38rem 0; }
.footer-bottom { margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid rgba(255,255,255,.12); color: #9fb0bc; font-size: .88rem; }

[hidden] { display: none !important; }

@media (max-width: 920px) {
  .hero-grid, .split, .article-layout { grid-template-columns: 1fr; }
  .hero-grid { gap: 2.2rem; }
  .hero-card { min-height: 360px; }
  .grid-3, .grid-4, .gallery-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .kpi-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
  .sticky { position: static; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .main-nav { display: none; position: absolute; top: 64px; left: 1rem; right: 1rem; padding: .8rem; flex-direction: column; align-items: stretch; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; background: #102335; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: .75rem; }
  .section { padding: 3.6rem 0; }
  .hero-grid { min-height: auto; padding: 4rem 0; }
  .grid-2, .grid-3, .grid-4, .gallery-grid, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .gallery-stories { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .project-banner .container { align-items: flex-start; flex-direction: column; }
  .class-card { grid-template-columns: 72px 1fr; }
  .class-card .button { grid-column: 1 / -1; }
}

@media (max-width: 460px) {
  .gallery-stories, .kpi-grid { grid-template-columns: 1fr; }
  h1 { font-size: 2.65rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}