/* ================================================================
   HoME — Optimal Management website
   Palette taken from the Optimal Management app:
   navy #191970 · cyan #7FFFD4 · blue #6495ED · azure #CFE8FF
   slate darks #0F172A / #1A2332 (app dark theme)
   ================================================================ */

:root {
  --navy: #191970;
  --navy-deep: #10104d;
  --slate: #0f172a;
  --slate-card: #1a2332;
  --cyan: #7fffd4;
  --cyan-dark: #4de3b0;
  --blue: #6495ed;
  --azure: #cfe8ff;
  --ink: #1a2332;
  --ink-2: #44506b;
  --ink-3: #6b768c;
  --line: #dde1ea;
  --bg: #ffffff;
  --bg-alt: #f2f4f7;
  --white: #ffffff;
  --radius: 12px;
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { color: var(--navy); line-height: 1.2; font-weight: 800; }
h1 { font-size: clamp(2rem, 4.6vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 16px; letter-spacing: -0.01em; }
h3 { font-size: 1.08rem; margin-bottom: 8px; font-weight: 700; }
p { margin-bottom: 10px; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.center { text-align: center; }
.center-block { max-width: 660px; margin-left: auto; margin-right: auto; }
.muted { color: var(--ink-3); font-size: 0.92rem; }
.max-prose { max-width: 720px; }
.on-dark { color: var(--white); }

/* ------------------------------------------------ header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 16px;
}
.brand { display: flex; align-items: center; }
.brand-logo { display: block; width: 120px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { color: var(--ink-2); font-size: 0.94rem; font-weight: 500; }
.site-nav a:hover { color: var(--navy); text-decoration: none; }
.site-nav a.active { color: var(--navy); font-weight: 700; }
.lang-picker {
  display: flex; align-items: center; gap: 4px;
  border: 1px solid var(--line); border-radius: 6px; padding: 2px 4px;
}
.lang-link {
  font-size: 0.75rem !important; font-weight: 600 !important;
  padding: 2px 6px; border-radius: 4px; color: var(--ink-3) !important;
}
.lang-link:hover { color: var(--navy) !important; background: var(--azure); text-decoration: none; }
.lang-link.active { color: var(--navy) !important; background: var(--azure); }
.nav-login {
  color: var(--navy) !important; font-weight: 600 !important;
}
.nav-cta {
  background: var(--navy); color: var(--white) !important;
  padding: 9px 18px; border-radius: 8px; font-weight: 700 !important;
}
.nav-cta:hover { background: var(--navy-deep); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px 0; }

/* ------------------------------------------------ hero */
.hero { background: var(--slate); color: var(--white); padding: 88px 0 80px; }
.hero-page { padding: 68px 0 56px; }
.hero h1 { color: var(--white); max-width: 720px; }
.hero-grid {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: center;
}
.hero-visual { display: flex; justify-content: center; }
.hero-visual img { max-width: 100%; height: auto; opacity: 0.95; }
.kicker {
  text-transform: uppercase; letter-spacing: 2.5px; font-size: 0.78rem;
  font-weight: 700; color: var(--cyan); margin-bottom: 14px;
}
.hero-sub { color: #c3d0e0; font-size: 1.12rem; max-width: 620px; margin: 18px 0 28px; }
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.cta-note { color: #9fb2c8; font-size: 0.9rem; }
.cta-note-below { color: var(--ink-3); font-size: 0.9rem; margin-top: 12px; }
.hero-trust {
  margin-top: 34px; padding-top: 18px;
  border-top: 1px solid #2b3548;
  color: var(--azure); font-size: 0.95rem; font-weight: 500;
}

/* ------------------------------------------------ buttons */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 8px;
  font-weight: 700; font-size: 0.98rem; text-decoration: none;
  transition: background 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--cyan); color: var(--slate); }
.btn-primary:hover { background: var(--cyan-dark); }
.btn-secondary { background: transparent; color: var(--navy); border: 1.5px solid var(--navy); }
.hero .btn-secondary, .section-navy .btn-secondary { color: var(--cyan); border-color: var(--cyan); }
.btn-secondary:hover { background: rgba(25, 25, 112, 0.06); }
.btn-lg { padding: 15px 32px; font-size: 1.05rem; }

/* ------------------------------------------------ stats band */
.stats-band { background: var(--navy); color: var(--white); padding: 34px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; }
.stat-value { font-size: 2.2rem; font-weight: 800; color: var(--cyan); }
.stat-label { font-size: 0.88rem; color: var(--azure); }

/* ------------------------------------------------ sections */
.section { padding: 76px 0; }
.section-alt { background: var(--bg-alt); }
.section-navy { background: var(--slate); color: #c3d0e0; }
.section-sub { color: var(--ink-2); margin-bottom: 34px; }
.section-navy .section-sub { color: #c3d0e0; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 30px; }
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 34px; }

.card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
}
.section-alt .card { border-color: #d3dae6; }
.card p { color: var(--ink-2); font-size: 0.95rem; margin-bottom: 0; }

.card-product { display: flex; flex-direction: column; border-top: 3px solid var(--cyan); }
.card-product h3 { font-size: 1.15rem; }
.card-desc { margin-bottom: 12px !important; }
.module-name {
  text-transform: uppercase; letter-spacing: 1.6px; font-size: 0.7rem;
  font-weight: 700; color: var(--blue); margin-bottom: 8px;
}
.mini-list { list-style: none; margin: 0 0 16px; flex-grow: 1; }
.mini-list li {
  position: relative; padding: 4px 0 4px 20px;
  color: var(--ink-2); font-size: 0.88rem;
}
.mini-list li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--cyan); border: 2px solid var(--navy);
}
.card-link { font-weight: 700; font-size: 0.9rem; color: var(--navy); }

.card-step { text-align: left; }
.step-number {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--navy); color: var(--cyan);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; margin-bottom: 14px; font-size: 1.05rem;
}

/* ------------------------------------------------ benefits (dark band) */
.benefits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; margin-top: 40px; }
.benefit { text-align: left; }
.benefit-value {
  font-size: 3rem; font-weight: 800; color: var(--cyan);
  line-height: 1; margin-bottom: 14px;
}
.benefit h3 { color: var(--white); }
.benefit p { color: #b3becd; font-size: 0.95rem; }

/* ------------------------------------------------ before / after */
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 34px; }
.ba-col { border-radius: var(--radius); padding: 30px 28px; }
.ba-before { background: var(--bg-alt); border: 1px solid var(--line); }
.ba-after { background: var(--navy); }
.ba-heading {
  text-transform: uppercase; letter-spacing: 2px; font-size: 0.78rem;
  font-weight: 800; margin-bottom: 20px;
}
.ba-before .ba-heading { color: var(--ink-3); }
.ba-after .ba-heading { color: var(--cyan); }
.ba-item { padding: 14px 0; }
.ba-before .ba-item { border-bottom: 1px solid var(--line); }
.ba-after .ba-item { border-bottom: 1px solid rgba(207, 232, 255, 0.18); }
.ba-col .ba-item:last-child { border-bottom: none; padding-bottom: 0; }
.ba-before h3 { color: var(--ink-2); }
.ba-before p { color: var(--ink-3); font-size: 0.92rem; margin: 0; }
.ba-after h3 { color: var(--white); }
.ba-after p { color: var(--azure); font-size: 0.92rem; margin: 0; }

/* ------------------------------------------------ comparison table */
.table-wrap { overflow-x: auto; margin-top: 24px; }
.diff-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.diff-table th, .diff-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.diff-table thead th { font-size: 0.95rem; color: var(--navy); border-bottom: 2px solid var(--navy); }
.diff-table .row-label { font-weight: 600; color: var(--navy); width: 22%; }
.diff-table .cell-us { color: var(--navy); font-weight: 600; width: 42%; }
.diff-table .cell-them { color: var(--ink-3); }

/* ------------------------------------------------ software page */
.modules-list { display: flex; flex-direction: column; }
.module-row {
  display: grid; grid-template-columns: 220px 1fr; gap: 28px;
  padding: 34px 0; border-bottom: 1px solid var(--line);
}
.module-row:last-child { border-bottom: none; }
.module-row h2 { font-size: 1.35rem; margin-bottom: 10px; }
.module-row p { color: var(--ink-2); max-width: 680px; }
.module-row .module-name { font-size: 0.8rem; }

.formula {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 26px; margin-top: 24px;
  font-weight: 600; color: var(--navy); font-size: 0.95rem;
}
.formula .op { color: var(--blue); font-size: 1.2rem; font-weight: 800; }
.formula .result { color: var(--navy); background: var(--cyan); padding: 4px 12px; border-radius: 6px; }

.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.pill-row-center { justify-content: center; }
.pill {
  border: 1.5px solid var(--navy); color: var(--navy);
  border-radius: 999px; padding: 6px 18px; font-size: 0.9rem; font-weight: 600;
  background: var(--white);
}
.pill-muted { border-color: var(--line); color: var(--ink-3); }

/* ------------------------------------------------ two columns / lists */
.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.statement h2 { color: var(--blue); }

.check-list { list-style: none; margin: 18px 0 0; max-width: 760px; }
.check-list li {
  padding: 10px 0 10px 34px; position: relative;
  border-bottom: 1px solid var(--line); color: var(--ink-2);
}
.check-list li:last-child { border-bottom: none; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 16px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--navy);
}
.check-list li::after {
  content: ""; position: absolute; left: 5px; top: 20px;
  width: 8px; height: 5px;
  border-left: 2px solid var(--cyan); border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}

/* ------------------------------------------------ closing band */
.closing-band { background: var(--bg-alt); padding: 76px 0; }
.closing-band h2 { margin-bottom: 10px; }
.closing-band p { color: var(--ink-2); margin-bottom: 24px; }

/* ------------------------------------------------ contact / demo form */
.contact-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: start;
}
.card-form { border-top: 3px solid var(--cyan); }
.form-intro { color: var(--ink-2); margin-bottom: 6px; }
.form-required-hint { font-size: 0.82rem; color: var(--ink-3); margin-bottom: 22px; }
.contact-aside { display: flex; flex-direction: column; gap: 18px; }
.contact-aside .card h2 { font-size: 1.05rem; margin-bottom: 8px; }

.demo-form { display: flex; flex-direction: column; gap: 18px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field-full { grid-column: 1 / -1; }
.form-label { font-size: 0.88rem; font-weight: 600; color: var(--navy); }
.demo-form input,
.demo-form textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  width: 100%;
}
.demo-form input:focus,
.demo-form textarea:focus {
  outline: 2px solid var(--cyan);
  outline-offset: 1px;
  border-color: var(--blue);
}
.demo-form textarea { resize: vertical; min-height: 120px; }
.form-honey { position: absolute; left: -9999px; height: 0; width: 0; opacity: 0; }
.form-success {
  background: var(--azure);
  border: 1px solid #b8d9f5;
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 20px;
}
.form-success h3 { color: var(--navy); margin-bottom: 6px; font-size: 1.1rem; }
.form-success p { color: var(--ink-2); margin: 0; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.card-contact { border-top: 3px solid var(--cyan); }
.contact-email { font-size: 1.25rem; font-weight: 700; color: var(--navy); }
.card-contact .btn { margin-top: 12px; }

/* ------------------------------------------------ footer */
.site-footer { background: var(--slate); color: #b3becd; padding: 56px 0 28px; }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 32px; border-bottom: 1px solid #2b3548;
}
.footer-logo { width: 200px; height: auto; margin-bottom: 12px; }
.footer-tagline { font-style: italic; color: var(--cyan); }
.footer-note { font-size: 0.88rem; max-width: 340px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col-title {
  text-transform: uppercase; letter-spacing: 1.6px; font-size: 0.74rem;
  font-weight: 700; color: var(--azure); margin-bottom: 6px;
}
.footer-col a { color: #b3becd; font-size: 0.92rem; }
.footer-col a:hover { color: var(--cyan); text-decoration: none; }
.footer-legal { padding-top: 20px; }
.footer-legal p { font-size: 0.84rem; color: #6b768c; margin: 0; }

/* ------------------------------------------------ responsive */
@media (max-width: 980px) {
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .cards-3, .cards-4 { grid-template-columns: 1fr; }
  .cols-2 { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .module-row { grid-template-columns: 1fr; gap: 8px; }
  .stats-grid { grid-template-columns: 1fr; gap: 16px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .ba-grid { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .footer-inner { grid-template-columns: 1fr; }

  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start;
    padding: 16px 24px; gap: 14px;
  }
  body.nav-open .site-nav { display: flex; }
}