/* ==========================================================================
   Chronote Core Styles — Mobile First & Responsive Design
   ========================================================================== */

:root {
  /* Dark AMOLED Palette (Default) */
  --bg-primary: #090d16;
  --bg-secondary: #131b2e;
  --bg-card: #182238;
  --bg-card-hover: #1f2c47;
  --bg-input: #0e1524;
  --bg-elevated: #1e293b;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --border-subtle: #232f48;
  --border-focus: #3b82f6;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --safe-bottom: env(safe-area-inset-bottom, 0px);

  /* Icônes natives des sélecteurs date/heure lisibles selon le thème */
  color-scheme: dark;
}

/* Light Theme */
[data-theme="light"] {
  color-scheme: light;
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #f8fafc;
  --bg-elevated: #e2e8f0;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;

  --border-subtle: #e2e8f0;
  --border-focus: #2563eb;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.12);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  user-select: none;
  -webkit-user-select: none;
}

input, textarea, [contenteditable="true"] {
  user-select: text;
  -webkit-user-select: text;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  max-width: 680px;
  margin: 0 auto;
}

/* App Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.brand-icon {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #60a5fa, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Base Buttons */
.btn-icon {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.btn-icon:active {
  transform: scale(0.92);
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  min-height: 36px;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #ffffff;
}

.btn-primary:active {
  background-color: var(--accent-blue-hover);
}

.btn-emerald {
  background-color: var(--accent-emerald);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-danger {
  background-color: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-block {
  width: 100%;
}

/* Floating Action Button (FAB) */
.fab-container {
  position: fixed;
  bottom: calc(14px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 680px;
  display: flex;
  justify-content: center;
  pointer-events: none;
  z-index: 30;
  padding: 0 14px;
}

.fab-btn {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #2563eb, #10b981);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 700;
  border: none;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.4);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.fab-btn:active {
  transform: scale(0.94);
}

.fab-btn svg {
  width: 18px;
  height: 18px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 110; /* au-dessus de l'écran de verrouillage */
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  width: 90%;
  max-width: 400px;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  animation: toastIn 0.25s ease forwards;
}

.toast.toast-success {
  border-left: 4px solid var(--accent-emerald);
}

.toast.toast-error {
  border-left: 4px solid var(--accent-rose);
}

.toast.toast-info {
  border-left: 4px solid var(--accent-blue);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(-16px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.hidden {
  display: none !important;
}

.app-footer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 24px 0 16px;
  letter-spacing: 0.03em;
  opacity: 0.75;
}