/* ── Variables ─────────────────────────────────────────────── */
:root {
  --color-bg: #f8f9fb;
  --color-surface: #ffffff;
  --color-surface-alt: #f0f4f8;
  --color-text: #1a2332;
  --color-text-muted: #5a6a7e;
  --color-accent: #2b6cb0;
  --color-accent-light: #ebf4ff;
  --color-accent-dark: #1e4e8c;
  --color-teal: #0d9488;
  --color-teal-light: #e6faf8;
  --color-border: #e2e8f0;
  --color-shadow: rgba(26, 35, 50, 0.08);
  --color-shadow-lg: rgba(26, 35, 50, 0.14);
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --radius: 12px;
  --radius-lg: 20px;
  --header-h: 72px;
  --transition: 0.2s ease;
}

/* ── Reset & base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

.container {
  width: min(1140px, 92vw);
  margin-inline: auto;
}

/* ── Typography helpers ────────────────────────────────────── */
.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.15rem; font-family: var(--font-sans); font-weight: 600; }

.accent { color: var(--color-accent); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-dark); }

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.875rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Header / Nav ──────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.15rem;
}

.nav-logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 10px;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a:not(.btn) {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav-links a:not(.btn):hover { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--color-text);
  cursor: pointer;
  padding: 0.5rem;
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  padding: 4rem 0 5rem;
  background: linear-gradient(160deg, #fff 0%, var(--color-bg) 60%, var(--color-accent-light) 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin: 1.25rem 0 2rem;
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.hero-stats li { display: flex; flex-direction: column; gap: 0.2rem; }
.hero-stats strong { font-size: 1.5rem; font-weight: 700; color: var(--color-accent); }
.hero-stats span { font-size: 0.8rem; color: var(--color-text-muted); }

/* Hero visual cards */
.hero-visual {
  position: relative;
  min-height: 380px;
}

.hero-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px var(--color-shadow);
}

.hero-card-main {
  padding: 1.75rem;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}
.hero-card-header i { color: var(--color-accent); }

.hero-metric { margin-bottom: 1.5rem; }
.hero-metric-value {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}
.hero-metric-label { font-size: 0.85rem; color: var(--color-text-muted); }

.hero-bars { display: flex; flex-direction: column; gap: 0.6rem; }
.hero-bar {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent) var(--w), var(--color-surface-alt) var(--w));
}
.hero-bar.secondary { opacity: 0.65; }
.hero-bar.tertiary { opacity: 0.35; }

.hero-card-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  animation: float 4s ease-in-out infinite;
  max-width: 260px;
}
.hero-card-float i {
  font-size: 1.25rem;
  color: var(--color-teal);
  background: var(--color-teal-light);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  flex-shrink: 0;
}
.hero-card-float strong { display: block; font-size: 0.9rem; }
.hero-card-float span { color: var(--color-text-muted); font-size: 0.8rem; }
.hero-card-float.top { top: -20px; right: -20px; animation-delay: -1s; }
.hero-card-float.bottom { bottom: 10px; left: -30px; animation-delay: -2.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ── Value strip ───────────────────────────────────────────── */
.value-strip {
  padding: 3.5rem 0;
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

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

.value-item { text-align: center; }

.value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 14px;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.value-item h3 { margin-bottom: 0.5rem; }
.value-item p { font-size: 0.9rem; color: var(--color-text-muted); }

/* ── Sections ──────────────────────────────────────────────── */
.section { padding: 5rem 0; }
.section-alt { background: var(--color-surface-alt); }

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-lead {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-top: 1rem;
}

/* ── Module cards ──────────────────────────────────────────── */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.module-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.module-card:hover {
  box-shadow: 0 8px 24px var(--color-shadow);
  transform: translateY(-3px);
}

.module-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 10px;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.module-card h3 { margin-bottom: 0.85rem; }

.module-card ul li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 0.3rem 0;
  padding-left: 1.1rem;
  position: relative;
}
.module-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
}

.module-card-wide {
  grid-column: 1 / -1;
}

.module-wide-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 2rem;
}

/* ── Timeline ──────────────────────────────────────────────── */
.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  counter-reset: step;
}

.timeline li {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  transition: border-color var(--transition);
}
.timeline li:hover { border-color: var(--color-accent); }

.step-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  flex-shrink: 0;
}

.step-text { font-size: 0.9rem; font-weight: 500; }

/* ── Audience & diff ───────────────────────────────────────── */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.audience-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  text-align: center;
}
.audience-card > i {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.audience-card h3 { margin-bottom: 0.6rem; }
.audience-card p { font-size: 0.9rem; color: var(--color-text-muted); }

.diff-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.diff-content h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.5rem 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.check-list i {
  color: var(--color-teal);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.diff-card {
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.diff-card h4 {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: rgba(255,255,255,0.85);
}

.kpi-list div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  font-size: 0.9rem;
}
.kpi-list div:last-child { border-bottom: none; }
.kpi-list dt { font-weight: 500; }
.kpi-list dd { font-weight: 700; text-align: right; }

/* ── CTA / Contact ─────────────────────────────────────────── */
.section-cta {
  background: linear-gradient(135deg, var(--color-surface-alt) 0%, var(--color-accent-light) 100%);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.cta-content p { color: var(--color-text-muted); margin-bottom: 1.5rem; }

.cta-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.cta-features i { color: var(--color-teal); }

.contact-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 12px 40px var(--color-shadow);
}

.contact-panel--success {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  padding: 3rem 2rem;
}

.contact-thanks[hidden] {
  display: none !important;
}

.contact-thanks {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  animation: thanks-in 0.45s ease-out both;
}

.contact-thanks-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--color-teal) 0%, #14b8a6 100%);
  color: #fff;
  border-radius: 50%;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 10px 28px rgba(13, 148, 136, 0.28);
}

.contact-thanks h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  margin-bottom: 0.85rem;
  color: var(--color-text);
}

.contact-thanks p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.65;
  max-width: 38ch;
  margin: 0;
}

@keyframes thanks-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-row { margin-bottom: 1.1rem; }
.form-row-half {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

input, select, textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
}

textarea { resize: vertical; min-height: 100px; }

.form-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 0.85rem;
}

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 3rem 0 2rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-brand p { margin-top: 0.75rem; max-width: 32ch; }
.footer-brand .nav-logo-text { color: #fff; }
.footer-legal {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-links a:hover { color: #fff; }

.footer-copy {
  grid-column: 1 / -1;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* ── Toast ─────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--color-text);
  color: #fff;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 8px 24px var(--color-shadow-lg);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 200;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: unset;
    max-width: 100%;
    margin: 0;
    width: 100%;
  }
  .hero-card-float {
    position: static;
    animation: none;
    max-width: none;
    width: 100%;
  }
  .hero-card-float.top,
  .hero-card-float.bottom {
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
  }
  .hero-float-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .modules-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem 2rem 2rem;
    gap: 1.25rem;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .hero { padding: 2.5rem 0 3.5rem; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
  .hero-float-row { grid-template-columns: 1fr; }
  .hero-card-main { padding: 1.5rem; }
  .hero-metric-value { font-size: 2rem; }
  .value-grid { grid-template-columns: 1fr; }
  .modules-grid { grid-template-columns: 1fr; }
  .module-wide-content { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .form-row-half { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
}