/* Variáveis, base, topo inicial, folhas e marca.
   Extraído de style.css na Fase 6 sem alterar regras visuais. */

:root,
html[data-theme="day"] {
  --surface-page: #f6f0e3;
  --surface-header: #173a32;
  --surface-panel: rgba(255, 250, 239, 0.72);
  --surface-reading: #f1ddb0;
  --text-primary: #173a32;
  --text-secondary: rgba(35, 54, 45, 0.72);
  --text-on-dark: #f8f0da;
  --accent-title: #a8751d;
  --accent-active: #6f8f73;
  --accent-primary: #17636a;
  --border-subtle: rgba(71, 77, 59, 0.18);
  --border-active: rgba(73, 111, 79, 0.72);
  --shadow-card: 0 14px 36px rgba(52, 43, 27, 0.1);
  --shadow-deep: 0 24px 64px rgba(18, 29, 24, 0.22);
  --focus-ring: #1d6f76;
  --state-hover: rgba(101, 132, 101, 0.14);
  --state-disabled: 0.48;
  --decorative-texture-opacity: 0.18;
  --glass-header: rgba(23, 58, 50, 0.88);
  --glass-panel: rgba(255, 250, 239, 0.34);
  --glass-highlight: rgba(255, 255, 255, 0.28);
  --glass-blur: 5px;

  --bg: var(--surface-page);
  --ink: var(--text-primary);
  --muted: var(--text-secondary);
  --paper: var(--surface-reading);
  --card: var(--surface-panel);
  --stroke: var(--border-subtle);
  --stroke-strong: var(--border-active);
  --shadow: var(--shadow-card);

  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;

  --font: ui-serif, Georgia, "Times New Roman", Times, serif;
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

html[data-theme="night"] {
  --surface-page: #071b19;
  --surface-header: #071b19;
  --surface-panel: rgba(9, 31, 28, 0.78);
  --surface-reading: #d8bd82;
  --text-primary: #f4e7c6;
  --text-secondary: rgba(239, 221, 183, 0.76);
  --text-on-dark: #f8e7bd;
  --accent-title: #d6a84b;
  --accent-active: #9fbe94;
  --accent-primary: #1d5e5a;
  --border-subtle: rgba(186, 157, 92, 0.26);
  --border-active: rgba(165, 197, 145, 0.62);
  --shadow-card: 0 18px 46px rgba(0, 0, 0, 0.3);
  --shadow-deep: 0 28px 72px rgba(0, 0, 0, 0.5);
  --focus-ring: #f0c96f;
  --state-hover: rgba(159, 190, 148, 0.16);
  --state-disabled: 0.5;
  --decorative-texture-opacity: 0.12;
  --glass-header: rgba(7, 27, 25, 0.84);
  --glass-panel: rgba(7, 29, 26, 0.22);
  --glass-highlight: rgba(241, 234, 216, 0.09);
  --glass-blur: 5px;

  --bg: var(--surface-page);
  --ink: var(--text-primary);
  --muted: var(--text-secondary);
  --paper: var(--surface-reading);
  --card: var(--surface-panel);
  --stroke: var(--border-subtle);
  --stroke-strong: var(--border-active);
  --shadow: var(--shadow-card);

  --night-text-primary: #f6efdc;
  --night-text-reading: rgba(241, 234, 216, 0.84);
  --night-text-muted: rgba(241, 234, 216, 0.66);
  --night-text-shadow: rgba(241, 234, 216, 0.42);
  --night-surface: rgba(24, 39, 32, 0.58);
  --night-surface-lit: rgba(65, 94, 70, 0.38);
  --night-border: rgba(190, 211, 178, 0.18);
  --night-border-lit: rgba(205, 224, 191, 0.42);
  --night-accent: #9fbe94;
  --night-accent-lit: #c7d9b4;
  --night-gold: #d8bd75;
  --night-moon-shadow: 0 0 0 1px rgba(205, 224, 191, 0.1), 0 10px 26px rgba(0, 0, 0, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  overflow-y: auto;
  background:
    radial-gradient(circle at 8% 18%, rgba(190, 213, 181, 0.34), transparent 28%),
    radial-gradient(circle at 92% 76%, rgba(205, 220, 184, 0.3), transparent 30%),
    linear-gradient(135deg, #eee4d0 0%, var(--surface-page) 48%, #edf0dc 100%);
  color: var(--ink);
  font-family: var(--font-sans);
}

html[data-theme="night"] body {
  background:
    radial-gradient(circle at 14% 12%, rgba(119, 149, 128, 0.14), transparent 30%),
    radial-gradient(circle at 82% 78%, rgba(83, 116, 91, 0.16), transparent 34%),
    linear-gradient(160deg, #051614 0%, var(--surface-page) 46%, #102a22 100%);
  color: var(--ink);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 106px;
  display: grid;
  grid-template-columns: minmax(250px, 26fr) minmax(520px, 48fr) minmax(260px, 26fr);
  grid-template-rows: 72px 34px;
  align-items: center;
  padding: 0;
  border-bottom: 1px solid var(--stroke);
  background: var(--glass-header);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(112%);
  backdrop-filter: blur(var(--glass-blur)) saturate(112%);
  color: var(--text-on-dark);
  box-shadow: 0 8px 28px rgba(15, 34, 28, 0.12);
}

html[data-theme="night"] .topbar {
  background: var(--glass-header);
}

.live-info {
  grid-column: 3;
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(10px, 1.2vw, 20px);
  min-width: 0;
  min-height: 72px;
  padding: 0 clamp(18px, 2.2vw, 34px);
  color: var(--text-on-dark);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.online-counter {
  margin: 0;
  display: grid;
  justify-items: center;
  line-height: 1.05;
  white-space: nowrap;
}

.online-counter span {
  grid-row: 1;
  font-family: var(--font);
  font-size: 24px;
  line-height: 1;
  color: var(--text-on-dark);
  font-weight: 800;
}

.theme-toggle {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: 700 15px/1 var(--font-sans);
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease, transform 120ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--ink);
  border-color: var(--stroke-strong);
  background: rgba(255, 255, 255, 0.22);
  outline: none;
}

.theme-toggle:active {
  transform: translateY(1px);
}

html[data-theme="night"] .theme-toggle {
  background: rgba(201, 218, 187, 0.06);
  color: var(--night-text-reading);
}

html[data-theme="night"] .theme-toggle:hover,
html[data-theme="night"] .theme-toggle:focus-visible {
  background: rgba(154, 183, 146, 0.14);
  color: var(--night-text-primary);
}

.live-info time {
  min-width: 58px;
  color: var(--ink);
  font-weight: 800;
}

/* Plano ambiental global. O z-index 0 fica abaixo de todo conteúdo funcional;
   a topbar (10) e a shell (1) formam os planos interativos. */
.environment-layer,
.environment-overlay-layer {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
}

.environment-layer {
  z-index: 0;
}

.environment-overlay-layer {
  z-index: auto;
}

.icon-symbols {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.environment-landscape {
  position: absolute;
  z-index: 0;
  inset: 106px 0 0;
  background-position: center, center bottom;
  background-repeat: no-repeat;
  background-size: 100% 100%, 100% auto;
}

.environment-landscape-day {
  display: block;
  opacity: 0.76;
  background-color: #f8f1e2;
  background-image:
    linear-gradient(180deg, rgba(255, 252, 244, 0.34), rgba(255, 252, 244, 0.08) 58%, rgba(245, 237, 214, 0.12)),
    url("../assets/environment/landscape-day.webp");
}

.environment-landscape-night {
  display: none;
  opacity: 0.86;
  background-color: #08221d;
  background-image:
    linear-gradient(180deg, rgba(23, 63, 52, 0.28), rgba(8, 35, 30, 0.12) 58%, rgba(2, 14, 13, 0.1)),
    url("../assets/environment/landscape-night.webp");
}

html[data-theme="night"] .environment-landscape-day {
  display: none;
}

html[data-theme="night"] .environment-landscape-night {
  display: block;
}

.environment-layer::before,
.environment-layer::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(151, 181, 139, 0.2), rgba(151, 181, 139, 0) 68%);
  filter: blur(8px);
  z-index: 1;
}

.environment-layer::before {
  top: 6%;
  left: -130px;
}

.environment-layer::after {
  right: -130px;
  bottom: 4%;
}

html[data-theme="night"] .environment-layer::before,
html[data-theme="night"] .environment-layer::after {
  background: radial-gradient(circle, rgba(151, 181, 139, 0.11), rgba(151, 181, 139, 0) 70%);
  filter: blur(14px);
}

.topbar,
.shell {
  position: relative;
  z-index: 1;
}

.topbar {
  position: sticky;
  z-index: 10;
}

.environment-leaf {
  --leaf-size: 34px;
  --leaf-color: rgba(126, 139, 86, 0.58);
  --leaf-vein: rgba(91, 101, 61, 0.54);
  position: absolute;
  width: var(--leaf-size);
  height: calc(var(--leaf-size) * 0.62);
  border: 1px solid color-mix(in srgb, var(--leaf-vein) 48%, transparent);
  border-radius: 92% 8% 92% 8%;
  background:
    radial-gradient(ellipse at 28% 24%, rgba(255, 252, 224, 0.42), transparent 38%),
    repeating-linear-gradient(152deg, transparent 0 6px, color-mix(in srgb, var(--leaf-vein) 28%, transparent) 6px 7px, transparent 7px 11px),
    linear-gradient(145deg, color-mix(in srgb, var(--leaf-color) 68%, #fff), var(--leaf-color));
  box-shadow:
    0 3px 8px rgba(55, 62, 37, 0.1),
    inset -2px -2px 3px rgba(76, 84, 48, 0.16),
    inset 2px 1px 2px rgba(255, 252, 224, 0.22);
  transform: rotate(var(--leaf-rotation));
  z-index: 0;
}

.environment-leaf::before,
.environment-leaf::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: var(--leaf-vein);
}

.environment-leaf::before {
  left: 4%;
  top: 56%;
  width: 20%;
  height: 1px;
  opacity: 0.66;
  transform: rotate(18deg);
  transform-origin: right center;
}

.environment-leaf::after {
  left: 16%;
  top: 53%;
  width: 72%;
  height: 1px;
  opacity: 0.72;
  transform: rotate(-23deg);
  transform-origin: left center;
}

html[data-theme="night"] .environment-leaf {
  --leaf-color: rgba(205, 166, 70, 0.5);
  --leaf-vein: rgba(132, 98, 35, 0.64);
}

.environment-leaf-static {
  opacity: 0.38;
}

.leaf-1 { top: 15%; left: 2.2%; --leaf-size: 42px; --leaf-rotation: -24deg; opacity: 0.36; }
.leaf-2 { top: 78%; left: 6%; --leaf-size: 31px; --leaf-rotation: 34deg; opacity: 0.3; }
.leaf-3 { top: 18%; right: 4.5%; --leaf-size: 37px; --leaf-rotation: 17deg; opacity: 0.34; }
.leaf-4 { bottom: 14%; right: 29%; --leaf-size: 29px; --leaf-rotation: -38deg; opacity: 0.3; }
.leaf-5 { top: 38%; left: 12%; --leaf-size: 27px; --leaf-rotation: 18deg; opacity: 0.26; }
.leaf-6 { top: 32%; right: 2.5%; --leaf-size: 39px; --leaf-rotation: -22deg; opacity: 0.32; }
.leaf-7 { top: 61%; left: 26%; --leaf-size: 32px; --leaf-rotation: 31deg; opacity: 0.28; }
.leaf-8 { top: 27%; left: 48%; --leaf-size: 25px; --leaf-rotation: -16deg; opacity: 0.22; }
.leaf-9 { bottom: 7%; left: 58%; --leaf-size: 30px; --leaf-rotation: 27deg; opacity: 0.27; }
.leaf-10 { top: 53%; right: 15%; --leaf-size: 35px; --leaf-rotation: -34deg; opacity: 0.3; }
.leaf-11 { top: 11%; left: 31%; --leaf-size: 28px; --leaf-rotation: 42deg; opacity: 0.24; }
.leaf-12 { top: 44%; left: 67%; --leaf-size: 43px; --leaf-rotation: 12deg; opacity: 0.32; }
.leaf-13 { bottom: 24%; left: 39%; --leaf-size: 26px; --leaf-rotation: -48deg; opacity: 0.23; }
.leaf-14 { top: 69%; right: 4%; --leaf-size: 34px; --leaf-rotation: 28deg; opacity: 0.28; }

.header-moon {
  position: absolute;
  z-index: 1;
  top: 6px;
  right: calc(26% + 8px);
  width: 60px;
  height: 60px;
  display: none;
  place-items: center;
  overflow: visible;
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 0 10px rgba(244, 205, 111, 0.38));
}

.header-moon img {
  position: absolute;
  left: 50%;
  top: 50%;
  display: block;
  width: 140px;
  max-width: none;
  height: auto;
  transform: translate(-50%, -50%);
}

html[data-theme="night"] .header-moon {
  display: grid;
}

@media (prefers-reduced-motion: reduce) {
  .firefly {
    animation: none;
    opacity: 0;
  }
}

.about-trigger {
  padding: 2px 0;
  border: 0;
  border-bottom: 1px solid transparent;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font: inherit;
}

.about-trigger:hover,
.about-trigger:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--stroke-strong);
}

html[data-theme="night"] .about-trigger:hover,
html[data-theme="night"] .about-trigger:focus-visible {
  background: transparent;
}

html[data-theme="night"] .live-info,
html[data-theme="night"] .brand-subtitle,
html[data-theme="night"] .about-trigger {
  color: var(--night-text-reading);
}

html[data-theme="night"] .online-counter span,
html[data-theme="night"] .live-info time,
html[data-theme="night"] .brand-title {
  color: rgba(246, 239, 220, 0.9);
}

.brand {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  gap: 24px;
  align-items: center;
  min-width: 0;
  min-height: 72px;
  padding: 0 clamp(18px, 2.2vw, 34px);
  color: inherit;
  text-decoration: none;
}

.brand-icon {
  width: 56px;
  height: 60px;
  flex: 0 0 56px;
  display: grid;
  place-items: center;
  border: 0;
  color: #f3e4bd;
  background: transparent;
  font-size: 0;
  overflow: visible;
}

.brand-raven {
  width: 92px;
  max-width: none;
  height: auto;
  display: block;
  transform: translateX(-12px);
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.12));
}

html[data-theme="night"] .brand-icon {
  color: #d9bd79;
}

.brand-title {
  font-family: var(--font);
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 18px;
  line-height: 1;
  white-space: nowrap;
}

.brand-subtitle {
  margin-top: 4px;
  font-family: var(--font);
  font-size: 12px;
  color: var(--muted);
}

.topbar .live-info,
.topbar .brand-subtitle,
.topbar .about-trigger,
.topbar .theme-toggle {
  color: rgba(248, 240, 218, 0.78);
}

.topbar .online-counter span,
.topbar .brand-title {
  color: var(--text-on-dark);
}

.topbar .theme-toggle,
.topbar .brand-icon {
  border-color: rgba(248, 240, 218, 0.3);
}

.theme-toggle,
.about-trigger {
  min-width: 44px;
  min-height: 44px;
}

:where(button, a, input):focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}