/*
  Uvodni stranka pro neprihlasene (features/landing.js).

  Ukazuje se misto aplikace, kdyz <html> nese data-gate="landing". Skript
  v <head> to nastavi pred prvnim vykreslenim, takze prihlaseny uzivatel
  landing ani neuvidi a neprihlaseny neuvidi problikout aplikaci.
*/

:root {
  --landing-hero-bg: linear-gradient(180deg, #e7efe9 0%, var(--bg) 100%);
  --landing-ground: #eef3ea;
  --landing-contour: rgba(42, 90, 71, 0.18);
  --landing-stand: rgba(53, 120, 94, 0.16);
  --landing-stand-line: rgba(42, 90, 71, 0.55);
  --landing-path: #d8c7a6;
  --landing-ok: #2f8a5f;
  --landing-warn: #d98324;
  --landing-bad: #c9432f;
  --landing-me: #1f7ae0;
  --landing-card: rgba(255, 255, 255, 0.94);
  --landing-icon-bg: var(--forest-100);
  --landing-icon: var(--forest-600);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --landing-hero-bg: linear-gradient(180deg, #13201a 0%, var(--bg) 100%);
    --landing-ground: #17241d;
    --landing-contour: rgba(124, 191, 164, 0.16);
    --landing-stand: rgba(124, 191, 164, 0.1);
    --landing-stand-line: rgba(124, 191, 164, 0.45);
    --landing-path: #5b5140;
    --landing-ok: #4fbf8a;
    --landing-warn: #f2a43c;
    --landing-bad: #ef6a55;
    --landing-me: #5aa2f0;
    --landing-card: rgba(24, 33, 28, 0.94);
    --landing-icon-bg: #1f3329;
    --landing-icon: #7cbfa4;
  }
}

:root[data-theme="dark"] {
  --landing-hero-bg: linear-gradient(180deg, #13201a 0%, var(--bg) 100%);
  --landing-ground: #17241d;
  --landing-contour: rgba(124, 191, 164, 0.16);
  --landing-stand: rgba(124, 191, 164, 0.1);
  --landing-stand-line: rgba(124, 191, 164, 0.45);
  --landing-path: #5b5140;
  --landing-ok: #4fbf8a;
  --landing-warn: #f2a43c;
  --landing-bad: #ef6a55;
  --landing-me: #5aa2f0;
  --landing-card: rgba(24, 33, 28, 0.94);
  --landing-icon-bg: #1f3329;
  --landing-icon: #7cbfa4;
}

/* ------------------------------------------------------------ prepinani */

.landing {
  display: none;
}

:root[data-gate="landing"] .landing {
  display: block;
}

:root[data-gate="landing"] .app,
:root[data-gate="landing"] .drawer,
:root[data-gate="landing"] .scrim {
  display: none;
}

:root[data-gate="landing"] body {
  overscroll-behavior: auto;
}

/* --------------------------------------------------------------- stranka */

.landing {
  min-height: 100%;
  padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
  background: var(--landing-hero-bg) no-repeat;
  background-size: 100% 720px;
}

.landing-top,
.landing-hero,
.landing-features,
.landing-steps,
.landing-foot {
  box-sizing: border-box;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.landing-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--tap);
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

.landing-brand img {
  border-radius: 10px;
}

/* ------------------------------------------------------------------ hero */

.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  gap: var(--space-6);
  padding-top: var(--space-5);
  padding-bottom: 56px;
}

.landing-kicker {
  margin: 0 0 var(--space-2);
  color: var(--landing-icon);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.landing-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.landing-lead {
  max-width: 34em;
  margin: var(--space-4) 0 0;
  color: var(--text-muted);
  font-size: 1.08rem;
}

.landing-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.landing-cta .btn {
  min-width: 160px;
}

.landing-fine {
  margin: var(--space-3) 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.landing-note {
  margin: var(--space-4) 0 0;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  color: var(--on-amber-tint);
  background: var(--amber-100);
  font-size: 0.95rem;
}

/* Ilustrace: zjednodusena mapa s body stromu a kartou detailu. */
.landing-shot {
  position: relative;
  margin: 0;
}

.landing-shot svg {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}

.ls-ground {
  fill: var(--landing-ground);
}

.ls-contour {
  fill: none;
  stroke: var(--landing-contour);
  stroke-width: 1.5;
}

.ls-stand {
  fill: var(--landing-stand);
  stroke: var(--landing-stand-line);
  stroke-width: 1.5;
  stroke-dasharray: 5 4;
}

.ls-path {
  fill: none;
  stroke: var(--landing-path);
  stroke-width: 7;
  stroke-linecap: round;
}

.ls-pile rect {
  fill: var(--landing-warn);
}

.ls-pile text {
  fill: #fff;
  font: 700 12px var(--font);
  text-anchor: middle;
}

.ls-tree {
  stroke: #fff;
  stroke-width: 3;
}

.ls-tree.is-ok {
  fill: var(--landing-ok);
}

.ls-tree.is-warn {
  fill: var(--landing-warn);
}

.ls-tree.is-bad {
  fill: var(--landing-bad);
}

.ls-me {
  fill: var(--landing-me);
  stroke: #fff;
  stroke-width: 3;
}

.ls-me-ring {
  fill: none;
  stroke: var(--landing-me);
  stroke-width: 2;
  opacity: 0.35;
}

.landing-shot__card {
  position: absolute;
  right: -12px;
  bottom: -24px;
  display: grid;
  gap: 2px;
  max-width: 250px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--landing-card);
  box-shadow: var(--shadow-2);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.landing-shot__card strong {
  color: var(--text);
  font-size: 0.95rem;
}

.landing-chip {
  justify-self: start;
  margin-top: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  color: var(--on-amber-tint);
  background: var(--amber-100);
  font-weight: 600;
}

/* -------------------------------------------------------------- funkce */

.landing-features,
.landing-steps {
  padding-top: 40px;
  padding-bottom: 40px;
}

.landing h2 {
  margin: 0 0 var(--space-5);
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}

.landing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.landing-feature {
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.landing-feature svg {
  box-sizing: content-box;
  width: 22px;
  height: 22px;
  padding: 10px;
  border-radius: 12px;
  fill: none;
  stroke: var(--landing-icon);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  background: var(--landing-icon-bg);
}

.landing-feature h3 {
  margin: var(--space-3) 0 var(--space-1);
  font-size: 1.08rem;
}

.landing-feature p {
  margin: 0;
  color: var(--text-muted);
}

/* ---------------------------------------------------------------- kroky */

.landing-steps ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin: 0 0 var(--space-5);
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.landing-steps li {
  display: grid;
  gap: var(--space-1);
  padding-left: 52px;
  position: relative;
  counter-increment: step;
}

.landing-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: -2px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  color: var(--accent-text);
  background: var(--accent);
  font-weight: 700;
}

.landing-steps li span {
  color: var(--text-muted);
}

/* ---------------------------------------------------------------- paticka */

.landing-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  padding-bottom: var(--space-6);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.92rem;
}

.landing-foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-4);
}

.landing-foot a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--text);
}

.landing-foot p {
  margin: 0;
}

.landing-theme {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
}

.landing-theme button {
  min-height: 40px;
  padding: 0 var(--space-3);
  border: 0;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  background: transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.landing-theme button[aria-pressed="true"] {
  color: var(--accent-text);
  background: var(--accent);
}

/* ---------------------------------------------------------------- telefon */

@media (max-width: 860px) {
  .landing-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
    padding-top: var(--space-3);
  }

  .landing-shot {
    margin-right: var(--space-3);
  }

  .landing-grid,
  .landing-steps ol {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 861px) and (max-width: 1000px) {
  .landing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .landing-top__login {
    padding: 0 var(--space-3);
  }

  .landing-cta .btn {
    flex: 1 1 100%;
  }

  .landing-shot__card {
    right: -8px;
    max-width: 78%;
  }

  .landing-foot {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .landing-hero__text,
  .landing-shot {
    animation: landing-rise 420ms ease-out both;
  }

  .landing-shot {
    animation-delay: 80ms;
  }
}

@keyframes landing-rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}