/* ==========================================================
   Digital Calendar - main stylesheet
   Used by every page. Dark theme default, light via data-theme
   ========================================================== */

/* ---------- 1. Design tokens ---------- */
:root {
  --bg-primary: #050f0a;
  --bg-secondary: #0a1a10;
  --bg-card: #0d2018;
  --bg-card-hover: #123023;

  --green-primary: #00e676;
  --green-secondary: #00c853;
  --green-dim: #1a4d35;
  --green-glow: rgba(0, 230, 118, 0.12);

  --text-primary: #e8f5e9;
  --text-secondary: #81c784;
  --text-muted: #4caf50;

  --btn-text: #04140b;
  --header-bg: rgba(5, 15, 10, 0.88);

  --border: rgba(0, 230, 118, 0.18);
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);

  --white: #ffffff;
  --danger: #ff5252;
  --star: #ffc107;

  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --container-w: 1200px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="light"] {
  --bg-primary: #f5faf7;
  --bg-secondary: #eaf4ee;
  --bg-card: #ffffff;
  --bg-card-hover: #f2f9f4;

  --green-primary: #00a152;
  --green-secondary: #008f47;
  --green-dim: #d7ecdf;
  --green-glow: rgba(0, 200, 83, 0.10);

  --text-primary: #0d2018;
  --text-secondary: #1a4d35;
  --text-muted: #2e7d52;

  --btn-text: #ffffff;
  --header-bg: rgba(245, 250, 247, 0.9);

  --border: rgba(0, 180, 90, 0.2);
  --shadow: 0 4px 30px rgba(13, 32, 24, 0.08);
  --shadow-sm: 0 2px 8px rgba(13, 32, 24, 0.06);
}

/* ---------- 2. Reset and base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition), color var(--transition);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--green-secondary); }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 var(--space-3); color: var(--text-primary); }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 var(--space-4); color: var(--text-secondary); }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--green-primary); outline-offset: 3px; border-radius: 6px; }
.container { width: 100%; max-width: var(--container-w); margin-inline: auto; padding-inline: var(--space-5); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 3. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: 14px 28px; border-radius: var(--radius-pill); border: 1px solid transparent;
  font-weight: 700; font-size: 1rem; line-height: 1; transition: var(--transition);
}
.btn-primary { background: var(--green-primary); color: var(--btn-text); box-shadow: 0 6px 24px var(--green-glow); }
.btn-primary:hover { background: var(--green-secondary); color: var(--btn-text); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--text-primary); border-color: var(--border); }
.btn-ghost:hover { background: var(--green-glow); color: var(--text-primary); border-color: var(--green-primary); }
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-block { width: 100%; }

/* ---------- 4. Header and navigation ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--header-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 68px; }
.logo { display: flex; align-items: center; gap: var(--space-2); font-size: 1.25rem; font-weight: 800; color: var(--text-primary); }
.logo:hover { color: var(--text-primary); }
.logo-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--green-primary); color: var(--btn-text); font-size: 0.95rem; font-weight: 800;
}
.nav { display: flex; align-items: center; gap: var(--space-1); }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px; padding: 10px 14px; border-radius: var(--radius-pill);
  background: none; border: 0; color: var(--text-primary); font-weight: 600; font-size: 0.95rem;
}
.nav-link:hover, .nav-item:focus-within > .nav-link { background: var(--green-glow); color: var(--green-primary); }
.nav-link::after { content: ""; width: 6px; height: 6px; border: solid currentColor; border-width: 0 2px 2px 0; transform: rotate(45deg) translateY(-2px); }
.nav-link.no-arrow::after { display: none; }
.dropdown {
  position: absolute; top: 100%; left: 0; min-width: 250px; padding: var(--space-3);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(8px); transition: var(--transition);
}
.nav-item:hover > .dropdown, .nav-item:focus-within > .dropdown { opacity: 1; visibility: visible; transform: none; }
.dropdown a { display: block; padding: 10px 14px; border-radius: 8px; color: var(--text-primary); font-size: 0.95rem; }
.dropdown a:hover { background: var(--green-glow); color: var(--green-primary); }
.dropdown-title { padding: 8px 14px 4px; font-size: 0.8rem; color: var(--text-muted); font-weight: 700; }
.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.icon-btn {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%;
  background: var(--bg-card); border: 1px solid var(--border); color: var(--text-primary); transition: var(--transition);
}
.icon-btn:hover { border-color: var(--green-primary); color: var(--green-primary); }
.menu-toggle { display: none; }

/* ---------- 5. Sections ---------- */
.section { padding-block: var(--space-8); }
.section-alt { background: var(--bg-secondary); }
.section-head { max-width: 680px; margin-bottom: var(--space-6); }
.section-head p { font-size: 1.05rem; }
.section-head-row { display: flex; align-items: end; justify-content: space-between; gap: var(--space-4); max-width: none; flex-wrap: wrap; }

/* ---------- 6. Hero (home and product pages) ---------- */
.hero { padding-block: var(--space-8) var(--space-7); position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 60%; aspect-ratio: 1;
  background: radial-gradient(circle, var(--green-glow), transparent 65%); pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr 1.1fr; gap: var(--space-7); align-items: center; }
.hero-copy p { font-size: 1.12rem; max-width: 520px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }
.hero-points { display: grid; gap: var(--space-2); margin: var(--space-4) 0 0; }
.hero-points li { position: relative; padding-left: 26px; color: var(--text-secondary); }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: 0.5em; width: 14px; height: 8px;
  border: solid var(--green-primary); border-width: 0 0 2.5px 2.5px; transform: rotate(-45deg) translateY(-50%);
}
.hero-media {
  position: relative; display: grid; place-items: center; padding: var(--space-5);
  background: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));
  border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
}
.hero-media img { max-height: 100%; width: auto; object-fit: contain; filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.35)); }
.price-row { display: flex; align-items: baseline; gap: var(--space-3); margin: var(--space-3) 0 0; }
.price { font-size: 1.6rem; font-weight: 800; color: var(--green-primary); }
.price-old { color: var(--text-muted); text-decoration: line-through; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-5); font-size: 0.9rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-secondary); }

/* ---------- 7. Category chips and finder ---------- */
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  padding: 9px 18px; border-radius: var(--radius-pill); background: var(--bg-card);
  border: 1px solid var(--border); color: var(--text-primary); font-weight: 600; font-size: 0.92rem; transition: var(--transition);
}
.chip:hover, .chip.is-active { background: var(--green-primary); color: var(--btn-text); border-color: var(--green-primary); }
.finder { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: center; margin-bottom: var(--space-5); }
.finder-input {
  flex: 1 1 260px; padding: 14px 20px; border-radius: var(--radius-pill); border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-primary); font: inherit;
}
.finder-input::placeholder { color: var(--text-muted); }
.finder-input:focus { outline: none; border-color: var(--green-primary); box-shadow: 0 0 0 4px var(--green-glow); }
.is-hidden { display: none !important; }
.empty-note { padding: var(--space-6); text-align: center; color: var(--text-muted); }

/* ---------- 8. Product cards ---------- */
.grid { display: grid; gap: var(--space-5); grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.product-card {
  display: flex; flex-direction: column; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; transition: var(--transition);
}
.product-card:hover { transform: translateY(-4px); background: var(--bg-card-hover); border-color: var(--green-primary); box-shadow: var(--shadow); }
.card-media { display: grid; place-items: center; aspect-ratio: 1 / 1; padding: var(--space-5); background: var(--bg-secondary); }
.card-media img { max-height: 100%; width: auto; object-fit: contain; }
.card-body { display: flex; flex-direction: column; flex: 1; gap: var(--space-2); padding: var(--space-5); }
.card-body h3 { margin: 0; }
.card-body h3 a { color: var(--text-primary); }
.card-body p { margin: 0; font-size: 0.93rem; flex: 1; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-3); }
.tag {
  align-self: flex-start; padding: 4px 12px; border-radius: var(--radius-pill);
  background: var(--green-glow); color: var(--green-primary); font-size: 0.8rem; font-weight: 700;
}
.tag-sale { background: var(--danger); color: var(--white); }

/* ---------- 9. Feature blocks and content ---------- */
.feature {
  padding: var(--space-5); background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
}
.feature-icon {
  display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: var(--space-3);
  border-radius: 14px; background: var(--green-glow); color: var(--green-primary); font-size: 1.3rem;
}
.feature p { margin: 0; font-size: 0.95rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-7); align-items: center; }
.split-media { padding: var(--space-5); background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.prose { max-width: 760px; }
.prose h2 { margin-top: var(--space-6); }
.prose ul { margin: 0 0 var(--space-4); padding-left: 0; display: grid; gap: var(--space-2); }
.prose li { position: relative; padding-left: 22px; color: var(--text-secondary); }
.prose li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 8px; height: 8px; border-radius: 50%; background: var(--green-primary); }

/* ---------- 10. Tables (specs and comparison) ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-card); }
.table { width: 100%; border-collapse: collapse; min-width: 560px; }
.table th, .table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
.table th { color: var(--text-primary); font-weight: 700; background: var(--bg-secondary); }
.table td { color: var(--text-secondary); }
.table tr:last-child td { border-bottom: 0; }

/* ---------- 11. FAQ ---------- */
.faq { display: grid; gap: var(--space-3); max-width: 820px; }
.faq details { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); transition: var(--transition); }
.faq details[open] { border-color: var(--green-primary); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: 18px 22px; font-weight: 700; color: var(--text-primary); cursor: pointer; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--green-primary); line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { padding: 0 22px 20px; margin: 0; }

/* ---------- 12. Call to action band ---------- */
.cta-band {
  padding: var(--space-7) var(--space-6); text-align: center; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--green-dim), var(--bg-card)); border: 1px solid var(--border);
}
.cta-band p { max-width: 560px; margin-inline: auto; }

/* ---------- 13. Footer ---------- */
.site-footer { margin-top: var(--space-8); padding-block: var(--space-7) var(--space-5); background: var(--bg-secondary); border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-6); }
.footer-grid h4 { font-size: 1rem; margin-bottom: var(--space-3); }
.footer-grid li { margin-bottom: var(--space-2); }
.footer-grid a { color: var(--text-secondary); font-size: 0.93rem; }
.footer-grid a:hover { color: var(--green-primary); }
.footer-note { margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-muted); }
.footer-note p { color: var(--text-muted); margin-bottom: var(--space-2); }

/* ---------- 14. Responsive ---------- */
@media (max-width: 1024px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .menu-toggle { display: grid; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch;
    padding: var(--space-4) var(--space-5); background: var(--bg-primary); border-bottom: 1px solid var(--border);
    max-height: calc(100vh - 68px); overflow-y: auto; display: none;
  }
  .nav.is-open { display: flex; }
  .nav-link { width: 100%; justify-content: space-between; }
  .dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; background: transparent; padding: 0 0 var(--space-2) var(--space-3); }
  .hero-grid, .split { grid-template-columns: 1fr; gap: var(--space-6); }
  .hero-media { order: -1; aspect-ratio: 16 / 11; }
  .section { padding-block: var(--space-7); }
}
@media (max-width: 560px) {
  .container { padding-inline: var(--space-4); }
  .grid, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .cta-band { padding: var(--space-6) var(--space-4); }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}