/* ============================================================
   main.css — Variables, reset, composants partagés
   ============================================================ */

/* --- Variables -------------------------------------------- */
:root {
  --c-primary:       #3B5BDB;
  --c-primary-hover: #3451C7;
  --c-primary-light: #EDF2FF;
  --c-accent:        #74C0FC;
  --c-secondary:     #343A40;
  --c-bg:            #F8F9FA;
  --c-surface:       #FFFFFF;
  --c-border:        #DEE2E6;
  --c-border-light:  #E9ECEF;
  --c-text:          #343A40;
  --c-text-muted:    #868E96;
  --c-success:       #2F9E44;
  --c-success-bg:    #EBFBEE;
  --c-warning:       #F08C00;
  --c-warning-bg:    #FFF9DB;
  --c-danger:        #E03131;
  --c-danger-bg:     #FFF5F5;

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

  --font-body:    'Inter',  system-ui, sans-serif;
  --font-heading: 'Sora',   system-ui, sans-serif;

  --header-h: 60px;
  --max-w:    640px;
  --transition: 180ms ease;
}

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

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

body {
  height: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* --- Typography -------------------------------------------- */
h1, h2, h3 { font-family: var(--font-heading); line-height: 1.25; }
h1 { font-size: 1.5rem;   font-weight: 700; }
h2 { font-size: 1.125rem; font-weight: 600; }
h3 { font-size: 1rem;     font-weight: 600; }

/* --- Layout helpers --------------------------------------- */
.hidden  { display: none !important; }
[hidden] { display: none !important; }

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-width: var(--max-w);
  margin: 0 auto;
}

.page-content {
  flex: 1;
  padding: 16px 16px 80px;
  overflow-y: auto;
}

/* --- App header ------------------------------------------ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 16px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border-light);
  box-shadow: var(--shadow-xs);
}

.header-left  { display: flex; align-items: center; gap: 8px; }
.header-right { display: flex; align-items: center; gap: 8px; }

.header-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: -0.02em;
}

.header-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-secondary);
}

.header-user {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-text-muted);
}

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition),
              box-shadow var(--transition), opacity var(--transition);
  white-space: nowrap;
  user-select: none;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: scale(0.97); }

.btn--primary {
  background: var(--c-primary);
  color: #fff;
}
.btn--primary:hover:not(:disabled) { background: var(--c-primary-hover); }

.btn--secondary {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}
.btn--secondary:hover:not(:disabled) { background: var(--c-primary-light); }

.btn--ghost {
  background: transparent;
  color: var(--c-text);
}
.btn--ghost:hover:not(:disabled) { background: var(--c-bg); }

.btn--danger {
  background: var(--c-danger);
  color: #fff;
}
.btn--danger:hover:not(:disabled) { background: #C92A2A; }

.btn--icon {
  padding: 8px;
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
}
.btn--icon:hover { background: var(--c-bg); color: var(--c-text); }

.btn--sm { padding: 7px 12px; font-size: 0.8125rem; }
.btn--lg { padding: 14px 24px; font-size: 1rem; border-radius: var(--radius-md); }
.btn--full { width: 100%; }

/* --- Cards ------------------------------------------------ */
.card {
  background: var(--c-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card--interactive {
  cursor: pointer;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card--interactive:hover  { box-shadow: var(--shadow-md); }
.card--interactive:active { transform: scale(0.99); }

.card-body    { padding: 16px; }
.card-header  { padding: 14px 16px; border-bottom: 1px solid var(--c-border-light); }
.card-footer  { padding: 12px 16px; border-top: 1px solid var(--c-border-light); background: var(--c-bg); }

/* --- Badges ----------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.badge--primary { background: var(--c-primary-light); color: var(--c-primary); }
.badge--accent  { background: #E7F5FF;                color: #1864AB; }
.badge--success { background: var(--c-success-bg);    color: var(--c-success); }
.badge--warning { background: var(--c-warning-bg);    color: #7F5800; }
.badge--danger  { background: var(--c-danger-bg);     color: var(--c-danger); }
.badge--neutral { background: var(--c-border-light);  color: var(--c-text-muted); }

/* --- Inputs ----------------------------------------------- */
.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-secondary);
}

.input, .select, .textarea {
  width: 100%;
  padding: 11px 13px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(59, 91, 219, 0.12);
}
.input::placeholder, .textarea::placeholder { color: var(--c-text-muted); }
.input--error { border-color: var(--c-danger); }

.textarea { resize: vertical; min-height: 90px; }

.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23868E96' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 38px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}

/* --- Divider ---------------------------------------------- */
.divider {
  height: 1px;
  background: var(--c-border-light);
  margin: 12px 0;
}

/* --- Section header --------------------------------------- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

/* --- States ---------------------------------------------- */
.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 48px 24px;
  color: var(--c-text-muted);
  text-align: center;
}

.empty-state__icon {
  font-size: 2.5rem;
  opacity: 0.4;
  margin-bottom: 4px;
}

.empty-state p { font-size: 0.9375rem; }

.error-state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  color: var(--c-danger);
  font-weight: 500;
  text-align: center;
  padding: 24px;
}

/* --- Spinner ---------------------------------------------- */
.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner--sm { width: 18px; height: 18px; border-width: 2px; }

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Toast ------------------------------------------------ */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  width: calc(100% - 32px);
  max-width: 400px;
}

.toast {
  padding: 13px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  background: var(--c-secondary);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 250ms ease, transform 250ms ease;
  pointer-events: all;
}

.toast--visible { opacity: 1; transform: translateY(0); }

.toast--success { background: var(--c-success); }
.toast--error   { background: var(--c-danger); }
.toast--info    { background: var(--c-primary); }

/* --- Detail row (label + value) --------------------------- */
.detail-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-border-light);
}
.detail-row:last-child { border-bottom: none; }

.detail-label { font-size: 0.75rem; font-weight: 600; color: var(--c-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.detail-value { font-size: 0.9375rem; color: var(--c-text); }

/* --- Pill tabs -------------------------------------------- */
.filter-tabs {
  display: flex;
  gap: 4px;
  background: var(--c-border-light);
  border-radius: var(--radius-full);
  padding: 3px;
}

.filter-tab {
  flex: 1;
  padding: 6px 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-text-muted);
  border-radius: var(--radius-full);
  transition: background var(--transition), color var(--transition);
  text-align: center;
}
.filter-tab.active {
  background: var(--c-surface);
  color: var(--c-primary);
  box-shadow: var(--shadow-xs);
}

/* --- Back button ------------------------------------------ */
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-text-muted);
  padding: 6px 2px;
}
.btn-back:hover { color: var(--c-primary); }

.btn-back svg { flex-shrink: 0; }

/* --- Scrollbar (Webkit) ----------------------------------- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 999px; }