/* ============================================================
   TIME UNTIL — Design System & Styles
   ============================================================ */

/* ---------- CSS Variables / Themes ---------- */
:root {
  --transition-speed: 0.5s;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}

/* Midnight (default) */
[data-theme="midnight"] {
  --bg-primary: #0a0a1a;
  --bg-secondary: #111127;
  --bg-tertiary: #1a1a3e;
  --bg-glass: rgba(17, 17, 39, 0.75);
  --text-primary: #e8e8f0;
  --text-secondary: rgba(232, 232, 240, 0.55);
  --text-muted: rgba(232, 232, 240, 0.3);
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --accent-secondary: #a5b4fc;
  --border: rgba(255, 255, 255, 0.06);
  --border-active: rgba(99, 102, 241, 0.4);
  --gradient-a: #6366f1;
  --gradient-b: #8b5cf6;
  --gradient-c: #06b6d4;
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-border: rgba(255, 255, 255, 0.1);
  --progress-bg: rgba(255, 255, 255, 0.06);
  --progress-fill: linear-gradient(90deg, #6366f1, #a5b4fc);
  --separator-color: rgba(232, 232, 240, 0.15);
  --toast-bg: rgba(17, 17, 39, 0.92);
  --scrollbar-thumb: rgba(99, 102, 241, 0.3);
}

/* Nord */
[data-theme="nord"] {
  --bg-primary: #2e3440;
  --bg-secondary: #3b4252;
  --bg-tertiary: #434c5e;
  --bg-glass: rgba(46, 52, 64, 0.8);
  --text-primary: #eceff4;
  --text-secondary: rgba(236, 239, 244, 0.55);
  --text-muted: rgba(236, 239, 244, 0.3);
  --accent: #88c0d0;
  --accent-glow: rgba(136, 192, 208, 0.2);
  --accent-secondary: #81a1c1;
  --border: rgba(255, 255, 255, 0.06);
  --border-active: rgba(136, 192, 208, 0.4);
  --gradient-a: #88c0d0;
  --gradient-b: #81a1c1;
  --gradient-c: #5e81ac;
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.1);
  --progress-bg: rgba(255, 255, 255, 0.06);
  --progress-fill: linear-gradient(90deg, #88c0d0, #81a1c1);
  --separator-color: rgba(236, 239, 244, 0.15);
  --toast-bg: rgba(46, 52, 64, 0.92);
  --scrollbar-thumb: rgba(136, 192, 208, 0.3);
}

/* Aurora */
[data-theme="aurora"] {
  --bg-primary: #0f0c29;
  --bg-secondary: #140e33;
  --bg-tertiary: #1c1445;
  --bg-glass: rgba(15, 12, 41, 0.78);
  --text-primary: #e4e0f8;
  --text-secondary: rgba(228, 224, 248, 0.55);
  --text-muted: rgba(228, 224, 248, 0.3);
  --accent: #a855f7;
  --accent-glow: rgba(168, 85, 247, 0.25);
  --accent-secondary: #06b6d4;
  --border: rgba(255, 255, 255, 0.06);
  --border-active: rgba(168, 85, 247, 0.4);
  --gradient-a: #a855f7;
  --gradient-b: #ec4899;
  --gradient-c: #06b6d4;
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-border: rgba(255, 255, 255, 0.1);
  --progress-bg: rgba(255, 255, 255, 0.06);
  --progress-fill: linear-gradient(90deg, #a855f7, #06b6d4);
  --separator-color: rgba(228, 224, 248, 0.15);
  --toast-bg: rgba(15, 12, 41, 0.92);
  --scrollbar-thumb: rgba(168, 85, 247, 0.3);
}

/* Sakura */
[data-theme="sakura"] {
  --bg-primary: #1a1020;
  --bg-secondary: #221528;
  --bg-tertiary: #2d1c36;
  --bg-glass: rgba(26, 16, 32, 0.78);
  --text-primary: #f5e6f0;
  --text-secondary: rgba(245, 230, 240, 0.55);
  --text-muted: rgba(245, 230, 240, 0.3);
  --accent: #f472b6;
  --accent-glow: rgba(244, 114, 182, 0.25);
  --accent-secondary: #fbbf24;
  --border: rgba(255, 255, 255, 0.06);
  --border-active: rgba(244, 114, 182, 0.4);
  --gradient-a: #f472b6;
  --gradient-b: #fb923c;
  --gradient-c: #fbbf24;
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-border: rgba(255, 255, 255, 0.1);
  --progress-bg: rgba(255, 255, 255, 0.06);
  --progress-fill: linear-gradient(90deg, #f472b6, #fbbf24);
  --separator-color: rgba(245, 230, 240, 0.15);
  --toast-bg: rgba(26, 16, 32, 0.92);
  --scrollbar-thumb: rgba(244, 114, 182, 0.3);
}

/* Light */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-glass: rgba(248, 250, 252, 0.82);
  --text-primary: #0f172a;
  --text-secondary: rgba(15, 23, 42, 0.5);
  --text-muted: rgba(15, 23, 42, 0.25);
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-secondary: #6366f1;
  --border: rgba(0, 0, 0, 0.06);
  --border-active: rgba(59, 130, 246, 0.4);
  --gradient-a: #3b82f6;
  --gradient-b: #6366f1;
  --gradient-c: #06b6d4;
  --input-bg: rgba(0, 0, 0, 0.03);
  --input-border: rgba(0, 0, 0, 0.1);
  --progress-bg: rgba(0, 0, 0, 0.06);
  --progress-fill: linear-gradient(90deg, #3b82f6, #6366f1);
  --separator-color: rgba(15, 23, 42, 0.1);
  --toast-bg: rgba(248, 250, 252, 0.92);
  --scrollbar-thumb: rgba(59, 130, 246, 0.3);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
  overflow: hidden;
  -webkit-text-size-adjust: 100%;
}

body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition:
    background-color var(--transition-speed) ease,
    color var(--transition-speed) ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Animated Background ---------- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.4;
  background: 
    radial-gradient(ellipse 80% 60% at 20% 40%, var(--gradient-a), transparent),
    radial-gradient(ellipse 60% 80% at 80% 20%, var(--gradient-b), transparent),
    radial-gradient(ellipse 70% 50% at 60% 80%, var(--gradient-c), transparent);
  animation: bgShift 20s ease-in-out infinite alternate;
  transition: opacity var(--transition-speed) ease;
  will-change: transform;
}

@keyframes bgShift {
  0%   { transform: scale(1)    translate(0, 0);         filter: hue-rotate(0deg); }
  33%  { transform: scale(1.05) translate(-2%, 3%);      filter: hue-rotate(8deg); }
  66%  { transform: scale(1.02) translate(3%, -2%);      filter: hue-rotate(-5deg); }
  100% { transform: scale(1.08) translate(-1%, 1%);      filter: hue-rotate(12deg); }
}

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px;
  pointer-events: none;
}

[data-theme="light"] .bg-gradient {
  opacity: 0.2;
}

[data-theme="light"] .bg-noise {
  opacity: 0.015;
}

/* ---------- Container ---------- */
.container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  height: 100dvh;
  padding: 2rem;
  gap: 1.5rem;
  text-align: center;
}

/* ---------- Label ---------- */
.label {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  max-width: 90vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--transition-speed) ease;
}

/* ---------- Countdown ---------- */
.countdown {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 2vw, 1.5rem);
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: clamp(60px, 12vw, 160px);
}

.countdown-value {
  font-family: var(--font-mono);
  font-size: clamp(2.8rem, 10vw, 9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  transition:
    color var(--transition-speed) ease,
    transform 0.2s ease;
}

.countdown-value.tick {
  animation: tickPulse 0.35s ease-out;
}

@keyframes tickPulse {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.03); }
  100% { transform: scale(1); }
}

.countdown-label {
  font-size: clamp(0.6rem, 1.2vw, 0.85rem);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  transition: color var(--transition-speed) ease;
}

.countdown-separator {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 7vw, 6rem);
  font-weight: 300;
  color: var(--separator-color);
  padding-bottom: 1.5rem;
  animation: separatorBlink 2s ease-in-out infinite;
  user-select: none;
  transition: color var(--transition-speed) ease;
}

@keyframes separatorBlink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.3; }
}

/* Hide seconds unit */
.countdown-unit.hidden-unit,
.countdown-unit.hidden-unit + .countdown-separator,
.countdown-separator:has(+ .countdown-unit.hidden-unit) {
  display: none;
}

/* ---------- Progress Bar ---------- */
.progress-container {
  width: min(400px, 80vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.progress-bar {
  width: 100%;
  height: 3px;
  border-radius: 100px;
  background: var(--progress-bg);
  position: relative;
  overflow: hidden;
  transition: background var(--transition-speed) ease;
}

.progress-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--progress, 0%);
  background: var(--progress-fill);
  border-radius: 100px;
  transition: width 1s ease;
}

.progress-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
  transition: color var(--transition-speed) ease;
}

.progress-container.hidden {
  display: none;
}

/* ---------- Completion ---------- */
.completion {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  animation: fadeInUp 0.6s ease-out;
}

.completion-icon {
  font-size: clamp(3rem, 8vw, 5rem);
  animation: celebrateBounce 1s ease-in-out infinite;
}

@keyframes celebrateBounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25%      { transform: translateY(-12px) rotate(-5deg); }
  75%      { transform: translateY(-5px) rotate(5deg); }
}

.completion-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--gradient-a), var(--gradient-b), var(--gradient-c));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.completion-subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--text-secondary);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Top Controls ---------- */
.top-controls {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 10;
  display: flex;
  gap: 0.5rem;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-glass);
  color: var(--text-secondary);
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition:
    color 0.25s ease,
    border-color 0.25s ease,
    background-color 0.25s ease,
    transform 0.2s ease;
}

.icon-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-active);
  transform: scale(1.05);
}

.icon-btn:active {
  transform: scale(0.95);
}

.settings-btn svg {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.settings-btn:hover svg {
  transform: rotate(60deg);
}

/* ---------- Settings Overlay ---------- */
.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  visibility: visible;
  transition: visibility 0s 0s;
}

.settings-overlay.hidden {
  display: flex !important;
  visibility: hidden;
  pointer-events: none;
  transition: visibility 0s 0.4s;
}

.settings-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.settings-overlay:not(.hidden) .settings-backdrop {
  opacity: 1;
}

.settings-panel {
  position: relative;
  width: min(420px, 92vw);
  max-height: 100vh;
  max-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg-glass);
  backdrop-filter: blur(40px) saturate(1.4);
  -webkit-backdrop-filter: blur(40px) saturate(1.4);
  border-left: 1px solid var(--border);
  box-shadow:
    -20px 0 60px rgba(0, 0, 0, 0.15),
    inset 1px 0 0 rgba(255, 255, 255, 0.04);
  transform: translateX(100%);
  transition:
    transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    background var(--transition-speed) ease;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

.settings-panel::-webkit-scrollbar {
  width: 4px;
}

.settings-panel::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 100px;
}

.settings-overlay:not(.hidden) .settings-panel {
  transform: translateX(0);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 1.75rem 1rem;
  position: sticky;
  top: 0;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2;
}

.settings-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.settings-close {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.settings-body {
  padding: 0.5rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.settings-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.settings-group.settings-row {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.settings-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  transition: color var(--transition-speed) ease;
}

.settings-hint {
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: 0;
}

.settings-hint kbd {
  display: inline-block;
  padding: 0.15em 0.45em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 5px;
  color: var(--text-secondary);
}

.settings-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  outline: none;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    box-shadow 0.25s ease,
    color var(--transition-speed) ease;
}

.settings-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.settings-input::placeholder {
  color: var(--text-muted);
}

/* Color scheme for date/time inputs */
.settings-input::-webkit-calendar-picker-indicator {
  filter: invert(0.6);
  cursor: pointer;
}

[data-theme="light"] .settings-input::-webkit-calendar-picker-indicator {
  filter: none;
}

/* ---------- Theme Swatches ---------- */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.6rem;
}

.theme-swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    border-color 0.25s ease,
    transform 0.2s ease,
    box-shadow 0.25s ease;
}

.theme-swatch:hover {
  transform: translateY(-2px);
}

.theme-swatch.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.swatch-colors {
  display: flex;
  gap: 4px;
}

.swatch-colors span {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(128, 128, 128, 0.25);
}

.swatch-name {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* Per-theme swatch preview colors — hardcoded so they always show their own theme */
.theme-swatch[data-theme="midnight"] {
  background: #111127;
  border-color: rgba(99, 102, 241, 0.15);
}
.theme-swatch[data-theme="midnight"]:hover { border-color: rgba(99, 102, 241, 0.4); }
.theme-swatch[data-theme="midnight"] .swatch-name { color: rgba(232, 232, 240, 0.65); }

.theme-swatch[data-theme="nord"] {
  background: #3b4252;
  border-color: rgba(136, 192, 208, 0.15);
}
.theme-swatch[data-theme="nord"]:hover { border-color: rgba(136, 192, 208, 0.4); }
.theme-swatch[data-theme="nord"] .swatch-name { color: rgba(236, 239, 244, 0.65); }

.theme-swatch[data-theme="aurora"] {
  background: #140e33;
  border-color: rgba(168, 85, 247, 0.15);
}
.theme-swatch[data-theme="aurora"]:hover { border-color: rgba(168, 85, 247, 0.4); }
.theme-swatch[data-theme="aurora"] .swatch-name { color: rgba(228, 224, 248, 0.65); }

.theme-swatch[data-theme="sakura"] {
  background: #221528;
  border-color: rgba(244, 114, 182, 0.15);
}
.theme-swatch[data-theme="sakura"]:hover { border-color: rgba(244, 114, 182, 0.4); }
.theme-swatch[data-theme="sakura"] .swatch-name { color: rgba(245, 230, 240, 0.65); }

.theme-swatch[data-theme="light"] {
  background: #f1f5f9;
  border-color: rgba(59, 130, 246, 0.15);
}
.theme-swatch[data-theme="light"]:hover { border-color: rgba(59, 130, 246, 0.4); }
.theme-swatch[data-theme="light"] .swatch-name { color: rgba(15, 23, 42, 0.55); }
.theme-swatch[data-theme="light"] .swatch-colors span {
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.theme-swatch[data-theme="custom"] {
  background: var(--custom-swatch-bg, #1e1e2e);
  border-color: rgba(128, 128, 128, 0.15);
}
.theme-swatch[data-theme="custom"]:hover { border-color: rgba(128, 128, 128, 0.4); }
.theme-swatch[data-theme="custom"] .swatch-name { color: var(--custom-swatch-text, rgba(220, 220, 230, 0.65)); }
.theme-swatch[data-theme="custom"] .swatch-icon {
  font-size: 1rem;
  line-height: 20px;
}

/* ---------- Custom Theme Pickers ---------- */
.custom-theme-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  margin-top: 0.25rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  animation: fadeInUp 0.25s ease-out;
}

.custom-theme-options.collapsed {
  display: none;
}

.color-picker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.color-picker-row label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

.color-picker-row input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  width: 36px;
  height: 28px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  cursor: pointer;
  background: none;
  padding: 2px;
}

.color-picker-row input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker-row input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 5px;
}

/* ---------- Toggle Switch ---------- */
.toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 100px;
  cursor: pointer;
  transition:
    background 0.3s ease,
    border-color 0.3s ease;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition:
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.3s ease;
}

.toggle input:checked + .toggle-slider {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.toggle input:checked + .toggle-slider::after {
  transform: translateX(20px);
  background: var(--accent);
}

/* ---------- Settings Footer ---------- */
.settings-footer {
  padding: 1rem 1.75rem 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--toast-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 12px;
  z-index: 200;
  opacity: 0;
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Confetti Canvas ---------- */
.confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
}

/* ---------- Utility ---------- */
.hidden {
  display: none !important;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .countdown {
    gap: 0.25rem;
  }

  .countdown-separator {
    padding-bottom: 1rem;
  }

  .top-controls {
    top: 0.75rem;
    right: 0.75rem;
  }

  .icon-btn {
    width: 38px;
    height: 38px;
    border-radius: 10px;
  }

  .container {
    padding: 1rem;
    gap: 1rem;
  }

  .label {
    font-size: clamp(0.8rem, 3.5vw, 1.1rem);
  }

  .settings-panel {
    width: 100vw;
    border-left: none;
    border-radius: 0;
  }

  .progress-container {
    width: 85vw;
  }
}

@media (max-width: 380px) {
  .countdown-value {
    font-size: clamp(2rem, 14vw, 3.5rem);
  }

  .countdown-separator {
    font-size: clamp(1.5rem, 10vw, 2.5rem);
  }
}

/* Ultrawide (21:9+) */
@media (min-aspect-ratio: 21/9) {
  .countdown-value {
    font-size: clamp(5rem, 7vw, 10rem);
  }

  .countdown-unit {
    min-width: clamp(100px, 10vw, 200px);
  }
}

/* Landscape phones */
@media (max-height: 500px) and (orientation: landscape) {
  .container {
    gap: 0.5rem;
    padding: 0.5rem;
  }

  .label {
    font-size: 0.85rem;
  }

  .countdown-value {
    font-size: clamp(2rem, 12vh, 4rem);
  }

  .countdown-separator {
    font-size: clamp(1.5rem, 8vh, 3rem);
    padding-bottom: 0.5rem;
  }

  .progress-container {
    margin-top: 0;
  }
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
  .bg-gradient {
    animation: none;
  }

  .countdown-separator {
    animation: none;
  }

  .completion-icon {
    animation: none;
  }

  .countdown-value.tick {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
  }
}