/* ============================================================
   SOLEINE — Global Styles
   ============================================================ */

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  cursor: none;
  -webkit-font-smoothing: antialiased;
}

a, button, input, select, textarea,
[role="button"], [tabindex],
label, summary {
  cursor: none !important;
}

/* --- Three.js Background Canvas --- */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* --- App Container --- */
#app {
  position: fixed;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

/* ============================================================
   Panel — 液態玻璃面板系統
   ============================================================ */

.panel {
  position: relative;
  background: rgba(245, 244, 242, 0.055);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(200, 194, 184, 0.22);
  padding: 1.5rem;
  overflow: visible;
}

/* 外層呼吸框 */
.panel::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(200, 194, 184, 0.07);
  pointer-events: none;
  animation: breatheBorder 4s ease-in-out infinite;
}

@keyframes breatheBorder {
  0%, 100% { opacity: 0.4; inset: -4px; }
  50%       { opacity: 1;   inset: -6px; }
}

/* L 型角落裝飾 */
.panel::after {
  content: '';
  position: absolute;
  inset: -1px;
  background:
    linear-gradient(var(--silver-300), var(--silver-300)) top    left  / 20px 1px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) top    left  / 1px 20px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) top    right / 20px 1px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) top    right / 1px 20px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) bottom left  / 20px 1px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) bottom left  / 1px 20px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) bottom right / 20px 1px no-repeat,
    linear-gradient(var(--silver-300), var(--silver-300)) bottom right / 1px 20px no-repeat;
  pointer-events: none;
  opacity: 0.45;
  animation: breatheCorners 4s ease-in-out infinite;
}

@keyframes breatheCorners {
  0%, 100% { opacity: 0.35; }
  50%       { opacity: 0.70; }
}

/* ── Panel 顏色變體 ── */

.panel--gold {
  background: rgba(240, 230, 200, 0.05);
  border-color: rgba(212, 184, 120, 0.25);
}
.panel--gold::before {
  border-color: rgba(212, 184, 120, 0.08);
  animation: breatheBorderGold 4s ease-in-out infinite;
}
.panel--gold::after {
  background:
    linear-gradient(var(--gold-200), var(--gold-200)) top    left  / 20px 1px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) top    left  / 1px 20px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) top    right / 20px 1px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) top    right / 1px 20px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) bottom left  / 20px 1px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) bottom left  / 1px 20px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) bottom right / 20px 1px no-repeat,
    linear-gradient(var(--gold-200), var(--gold-200)) bottom right / 1px 20px no-repeat;
}

@keyframes breatheBorderGold {
  0%, 100% { opacity: 0.4; inset: -4px; box-shadow: none; }
  50%       { opacity: 1;   inset: -6px; box-shadow: 0 0 20px rgba(212,184,120,0.06); }
}

.panel--pink {
  background: rgba(242, 232, 228, 0.05);
  border-color: rgba(196, 148, 136, 0.22);
}
.panel--pink::before {
  border-color: rgba(196, 148, 136, 0.07);
  animation: breatheBorderPink 4s ease-in-out infinite;
}
.panel--pink::after {
  background:
    linear-gradient(var(--pink-300), var(--pink-300)) top    left  / 20px 1px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) top    left  / 1px 20px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) top    right / 20px 1px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) top    right / 1px 20px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) bottom left  / 20px 1px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) bottom left  / 1px 20px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) bottom right / 20px 1px no-repeat,
    linear-gradient(var(--pink-300), var(--pink-300)) bottom right / 1px 20px no-repeat;
}

@keyframes breatheBorderPink {
  0%, 100% { opacity: 0.4; inset: -4px; }
  50%       { opacity: 1;   inset: -6px; box-shadow: 0 0 20px rgba(196,148,136,0.06); }
}

.panel--lavender {
  background: rgba(196, 184, 208, 0.05);
  border-color: rgba(196, 184, 208, 0.20);
}
.panel--lavender::before {
  border-color: rgba(196, 184, 208, 0.07);
  animation: breatheBorderLavender 4s ease-in-out infinite;
}
.panel--lavender::after {
  background:
    linear-gradient(var(--lavender), var(--lavender)) top    left  / 20px 1px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) top    left  / 1px 20px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) top    right / 20px 1px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) top    right / 1px 20px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) bottom left  / 20px 1px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) bottom left  / 1px 20px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) bottom right / 20px 1px no-repeat,
    linear-gradient(var(--lavender), var(--lavender)) bottom right / 1px 20px no-repeat;
}

@keyframes breatheBorderLavender {
  0%, 100% { opacity: 0.4; inset: -4px; }
  50%       { opacity: 1;   inset: -6px; box-shadow: 0 0 20px rgba(196,184,208,0.06); }
}

/* ── Panel 尺寸 ── */
.panel--sm   { flex: 0 0 220px; }
.panel--md   { flex: 1 1 280px; }
.panel--lg   { flex: 2 1 420px; }
.panel--full { width: 100%; }

/* ── Panel Header ── */
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(200, 194, 184, 0.10);
}

.panel-id {
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(200, 194, 184, 0.65);
}

.panel-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(200, 194, 184, 0.65);
}

.status-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--silver-400);
  animation: dotPulse 2.5s ease-in-out infinite;
}
.status-dot--gold { background: var(--gold-200); }
.status-dot--pink { background: var(--pink-300); }
.status-dot--lav  { background: var(--lavender); }

@keyframes dotPulse {
  0%, 100% { opacity: 0.55; transform: scale(1);    }
  50%       { opacity: 1;   transform: scale(1.35); }
}

/* ── Panel Typography ── */
.panel-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--silver-100);
  margin-bottom: 0.5rem;
}

.panel-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-200);
  margin-bottom: 1rem;
}

.panel-body {
  font-size: 0.85rem;
  line-height: 1.85;
  color: rgba(200, 194, 184, 0.60);
}

/* ── Data Row ── */
.data-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(200, 194, 184, 0.06);
  font-size: 0.72rem;
}
.data-row:last-child { border-bottom: none; }

.data-label {
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(200, 194, 184, 0.35);
  font-size: 0.62rem;
}

.data-value {
  color: var(--silver-200);
  font-family: var(--font-display);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}
.data-value--gold  { color: var(--gold-200); }
.data-value--pink  { color: var(--pink-300); }
.data-value--lav   { color: var(--lavender); }
.data-value--muted { color: rgba(200,194,184,0.40); font-style: italic; }

/* ── Progress Bar ── */
.progress-wrap { margin: 1rem 0 0.25rem; }

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(200,194,184,0.35);
  margin-bottom: 6px;
}

.progress-track {
  height: 1px;
  background: rgba(200,194,184,0.10);
  position: relative;
  overflow: visible;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(to right, rgba(212,184,120,0.3), var(--gold-200));
  position: relative;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}
.progress-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold-200);
  box-shadow: 0 0 6px var(--gold-200);
}
.progress-fill--pink {
  background: linear-gradient(to right, rgba(196,148,136,0.3), var(--pink-300));
}
.progress-fill--pink::after {
  background: var(--pink-300);
  box-shadow: 0 0 6px var(--pink-300);
}

/* ── Button ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid rgba(200,194,184,0.25);
  background: rgba(245,244,242,0.04);
  backdrop-filter: blur(12px);
  color: var(--silver-200);
  cursor: none;
  position: relative;
  transition: all 0.28s ease;
  text-decoration: none;
}
.btn::before {
  content: '';
  position: absolute; inset: -3px;
  border: 1px solid rgba(200,194,184,0.06);
  transition: border-color 0.28s ease;
}
.btn:hover {
  background: rgba(245,244,242,0.08);
  border-color: rgba(212,184,120,0.45);
  color: var(--gold-100);
  box-shadow: 0 0 16px rgba(212,184,120,0.10);
}
.btn:hover::before { border-color: rgba(212,184,120,0.12); }

.btn--gold {
  border-color: rgba(212,184,120,0.30);
  color: var(--gold-200);
  background: rgba(212,184,120,0.04);
}
.btn--gold:hover {
  background: rgba(212,184,120,0.09);
  border-color: var(--gold-200);
  color: var(--gold-100);
}

.btn--pink {
  border-color: rgba(196,148,136,0.28);
  color: var(--pink-200);
  background: rgba(196,148,136,0.04);
}
.btn--pink:hover {
  background: rgba(196,148,136,0.09);
  border-color: var(--pink-300);
  color: var(--pink-100);
}

/* ── Tag / Badge ── */
.tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid rgba(200,194,184,0.18);
  color: rgba(200,194,184,0.50);
  background: rgba(200,194,184,0.04);
}
.tag--gold  { border-color: rgba(212,184,120,0.3); color: var(--gold-200);  background: rgba(212,184,120,0.05); }
.tag--pink  { border-color: rgba(196,148,136,0.3); color: var(--pink-300);  background: rgba(196,148,136,0.05); }
.tag--lav   { border-color: rgba(196,184,208,0.3); color: var(--lavender);  background: rgba(196,184,208,0.05); }
.tag--latte { border-color: rgba(212,196,176,0.3); color: var(--latte-200); background: rgba(212,196,176,0.05); }

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(200,194,184,0.15), transparent);
  margin: 1rem 0;
}
.divider--gold {
  background: linear-gradient(to right, transparent, rgba(212,184,120,0.25), transparent);
}

/* ── Section Label ── */
.section-label {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(200,194,184,0.65);
  margin-bottom: 1.2rem;
}

/* ── Vertical Separator ── */
.v-sep {
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(200,194,184,0.15), transparent);
  align-self: stretch;
  flex-shrink: 0;
}

/* ── Toggle Switch ── */
.toggle-wrap {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.6rem 0;
}
.toggle-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(200,194,184,0.55);
  flex: 1;
}
.toggle {
  width: 36px; height: 20px;
  background: rgba(200,194,184,0.12);
  border: 1px solid rgba(200,194,184,0.20);
  border-radius: 10px;
  position: relative;
  cursor: none;
  transition: background 0.28s ease, border-color 0.28s ease;
  flex-shrink: 0;
  backdrop-filter: blur(8px);
}
.toggle::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: rgba(200,194,184,0.45);
  transition: transform 0.28s cubic-bezier(0.34,1.56,0.64,1), background 0.28s ease;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  backdrop-filter: blur(4px);
}
.toggle.on {
  background: rgba(212,184,120,0.18);
  border-color: rgba(212,184,120,0.35);
}
.toggle.on::after {
  transform: translateX(16px);
  background: var(--gold-200);
  box-shadow: 0 0 8px rgba(212,184,120,0.4);
}

/* ============================================================
   Page System
   ============================================================ */

.page {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
  overflow-y: auto;
  overflow-x: hidden;
  padding-top: var(--space-lg);
  padding-bottom: calc(var(--nav-size-collapsed) + var(--space-lg) * 2);
}

.page.active {
  opacity: 1;
  pointer-events: all;
}

.page.entering {
  animation: pageEnter 0.65s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.page.leaving {
  animation: pageLeave 0.45s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(10px); filter: blur(3px); }
  to   { opacity: 1; transform: translateY(0);    filter: blur(0);   }
}

@keyframes pageLeave {
  from { opacity: 1; transform: translateY(0);   filter: blur(0);   }
  to   { opacity: 0; transform: translateY(-6px); filter: blur(2px); }
}

/* --- Page Frame overlays --- */
.page-frame {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.page-frame.visible { opacity: 1; }

/* --- Page Content --- */
.page-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 780px;
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

/* ============================================================
   Typography
   ============================================================ */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  color: var(--silver-100);
}

h2 { font-size: clamp(1.4rem, 3vw, 2rem); color: var(--silver-200); }

p {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   Loading Screen
   ============================================================ */

#loading {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loading.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-planet {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: conic-gradient(
    from 180deg,
    var(--color-logo-orange) 0%,
    #C4486A 28%,
    var(--color-logo-purple) 55%,
    #C4486A 78%,
    var(--color-logo-orange) 100%
  );
  animation: planetSpin 3s linear infinite;
  box-shadow:
    0 0 20px rgba(212, 137, 90, 0.35),
    0 0 40px rgba(138, 122, 172, 0.18);
}

@keyframes planetSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.loading-text {
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.35em;
  color: var(--color-text-dim);
  text-transform: uppercase;
  animation: loadingPulse 2s ease-in-out infinite;
}

@keyframes loadingPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.9; }
}

/* ============================================================
   Terminal Button
   ============================================================ */

#terminal-btn {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 20;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: none;
  background: var(--frost-base);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-inner);
  border-radius: 0;
  position: fixed;
  transition: all var(--transition-med);
}


#terminal-btn:hover {
  background: var(--frost-mid);
  border-color: rgba(168, 184, 200, 0.45);
  box-shadow:
    0 0 12px rgba(168, 184, 200, 0.15),
    inset 0 0 8px rgba(168, 184, 200, 0.05);
}

#terminal-btn svg {
  width: 18px;
  height: 18px;
  stroke: var(--silver-300);
  fill: none;
  transition: stroke var(--transition-fast);
}

#terminal-btn:hover svg { stroke: var(--silver-100); }

/* ============================================================
   Announcement Bar
   ============================================================ */

#announcement {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 15;
  height: 28px;
  background: var(--frost-base);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-outer);
  overflow: hidden;
  display: flex;
  align-items: center;
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

#announcement.visible {
  opacity: 1;
  transform: translateY(0);
}

.announcement-track {
  display: flex;
  white-space: nowrap;
  animation: marquee 32s linear infinite;
}

.announcement-track span {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--color-text-dim);
  padding: 0 3rem;
  text-transform: uppercase;
}

.announcement-track a {
  color: var(--silver-300);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.announcement-track a:hover { color: var(--silver-100); }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   Scrollbar
   ============================================================ */

::-webkit-scrollbar { width: 2px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(200, 194, 184, 0.2);
  border-radius: 0;
}

/* ============================================================
   Nav Hint
   ============================================================ */

#nav-hint {
  position: fixed;
  bottom: calc(var(--space-lg) + var(--nav-size-collapsed) + 14px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  opacity: 0;
  animation: hintFade 4s ease-in-out 2.5s forwards;
  pointer-events: none;
  z-index: 15;
  white-space: nowrap;
}

@keyframes hintFade {
  0%   { opacity: 0; transform: translateX(-50%) translateY(4px); }
  20%  { opacity: 0.5; transform: translateX(-50%) translateY(0); }
  70%  { opacity: 0.5; }
  100% { opacity: 0; }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (hover: none), (pointer: coarse) {
  html,
  body,
  button,
  a,
  [role="button"] {
    cursor: none;
  }
}