/* ============================================================
   RED GRUTAGE — Premium White & Blue Theme
   Responsive · Mobile-first · iPhone optimized
   ============================================================ */

:root {
  /* Palette */
  --blue-50:  #EFF6FF;
  --blue-100: #DBEAFE;
  --blue-200: #a30c1d;
  --blue-400: #60A5FA;
  --blue-500: #3B82F6;
  --blue-600: #2563EB;
  --blue-700: #1D4ED8;
  --blue-900: #1E3A8A;

  /* Sémantique */
  --bg:       #F0F5FF;
  --surface:  #FFFFFF;
  --primary:  #2563EB;
  --primary-hover: #1D4ED8;
  --text:     #0F172A;
  --text-2:   #334155;
  --muted:    #64748B;
  --border:   #CBD5E1;
  --border-light: #E2E8F0;
  --danger:   #EF4444;
  --danger-bg: #FEF2F2;
  --danger-border: #FECACA;
  --success:  #10B981;
  --success-bg: #ECFDF5;
  --success-border: #A7F3D0;
  --info-bg:  #EFF6FF;
  --info-border: #BFDBFE;

  /* Effets */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);
  --shadow:    0 4px 24px rgba(15, 23, 42, .10), 0 1px 4px rgba(15, 23, 42, .06);
  --shadow-lg: 0 12px 40px rgba(37, 99, 235, .14), 0 2px 8px rgba(15, 23, 42, .08);
  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 20px;

  /* Transitions */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --duration: 160ms;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
               ui-sans-serif, system-ui, Segoe UI, Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background:
    radial-gradient(ellipse 900px 600px at 70% -10%, rgba(37, 99, 235, .10), transparent 60%),
    radial-gradient(ellipse 700px 500px at -10% 80%, rgba(96, 165, 250, .08), transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}
a:hover { color: var(--primary-hover); text-decoration: underline; }

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  font-weight: 900;
  line-height: 1.25;
  color: var(--text);
  letter-spacing: -.3px;
}
h1 { font-size: clamp(18px, 5vw, 22px); }
h2 { font-size: clamp(16px, 4vw, 18px); }

p { margin: 0 0 1em; }

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 0 20px 72px;
}

@media (max-width: 480px) {
  .container { padding: 0 16px 80px; }
}

/* ── Navbar ──────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  margin: 16px 0 28px;
  position: sticky;
  top: 12px;
  z-index: 100;
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1px solid rgba(203, 213, 225, 0.55);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(15, 23, 42, .10), 0 1px 4px rgba(15, 23, 42, .06);
}

/* ── Hamburger (mobile only) ─────────────────────────────────── */
.nav-burger {
  display: none;
}

@media (max-width: 640px) {
  .topbar {
    padding: 12px 14px;
    margin: 10px 0 0;
    top: 8px;
    border-radius: var(--radius);
    position: relative;
  }

  .nav-burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
  }

  .nav-burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-2);
    border-radius: 2px;
    transition: transform 200ms var(--ease), opacity 200ms var(--ease);
    transform-origin: center;
  }

  .nav-burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(203, 213, 225, 0.6);
    border-radius: var(--radius);
    box-shadow: 0 12px 40px rgba(15, 23, 42, .14);
    z-index: 99;
    animation: fadeDown 180ms cubic-bezier(.16, 1, .3, 1) both;
  }

  .nav a,
  .nav .dropdown,
  .nav .dropbtn {
    width: 100%;
  }

  .nav .dropdown-content {
    position: static;
    box-shadow: none;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--blue-50);
    padding: 4px 0 4px 8px;
    margin-top: 2px;
    display: none;
    animation: none;
  }

  .nav .dropdown.is-open .dropdown-content {
    display: block;
  }
}

.brand a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-logo-big {
  height: 34px;
  width: auto;
  display: block;
}

.brand-sub {
  display: flex;
  flex-direction: column;
}

.brand-sub small {
  display: block;
  font-size: 11px;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.45;
}

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .nav { display: none; }
  .nav.nav-open { display: flex; }
}

.nav a {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 8px;
  color: var(--text-2);
  background: transparent;
  border: none;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--duration) var(--ease);
  text-decoration: none;
  min-height: 38px;
}

.nav a:hover {
  color: var(--primary);
  background: var(--blue-50);
  text-decoration: none;
}

/* Bouton CTA principal dans la nav */
.nav a.nav-cta {
  background: var(--primary);
  color: #fff;
  border-radius: 9px;
  padding: 7px 16px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(37, 99, 235, .28);
  margin-left: 4px;
}

.nav a.nav-cta:hover {
  background: var(--primary-hover);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, .38);
  transform: translateY(-1px);
  text-decoration: none;
}

/* ── Dropdown ────────────────────────────────────────────────── */
.dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.dropbtn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  font: 500 14px/1 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  white-space: nowrap;
  transition: all var(--duration) var(--ease);
  min-height: 38px;
}

.dropbtn:hover {
  color: var(--primary);
  background: var(--blue-50);
}

.dropdown-content {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(203, 213, 225, 0.65);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, .14), 0 4px 12px rgba(15, 23, 42, .06);
  padding: 6px;
  display: none;
  z-index: 9999;
}

/* zone hover invisible pour éviter le "gap" */
.dropdown-content::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content {
  display: block;
  animation: fadeDown 180ms cubic-bezier(.16, 1, .3, 1) both;
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-8px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.dropdown-content a,
.dropdown-content .dropitem {
  display: flex;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--text-2);
  background: transparent;
  border: none;
  cursor: pointer;
  font: 500 14px/1 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  text-decoration: none;
  transition: all var(--duration) var(--ease);
  min-height: 40px;
}

.dropdown-content a:hover,
.dropdown-content .dropitem:hover {
  background: var(--blue-50);
  color: var(--primary);
  text-decoration: none;
}

.dropitem.danger { color: var(--danger); }
.dropitem.danger:hover { background: var(--danger-bg); color: var(--danger); }

/* ── Card ────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration) var(--ease);
}

.card:hover {
  box-shadow: var(--shadow);
}

.card-h {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: linear-gradient(135deg, var(--blue-50) 0%, #FFFFFF 60%);
}

.card-h h1, .card-h h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.2px;
}

.card-b { padding: 20px; }

@media (max-width: 480px) {
  .card-h { padding: 14px 16px; }
  .card-b { padding: 16px; }
}

/* ── Grid ────────────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
}

/* ── Form elements ───────────────────────────────────────────── */
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  margin: 0 0 6px;
  letter-spacing: .1px;
}

input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: 400 15px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  outline: none;
  transition: border-color var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
  /* évite le zoom auto iOS */
  font-size: max(16px, 1em);
  -webkit-appearance: none;
  appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 38px;
  cursor: pointer;
}

input::placeholder,
textarea::placeholder { color: var(--muted); opacity: .75; }

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  padding: 0;
  accent-color: var(--primary);
  cursor: pointer;
  border-radius: 4px;
  -webkit-appearance: auto;
  appearance: auto;
}

textarea {
  resize: vertical;
  font-size: 15px;
  line-height: 1.5;
}

.help {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 11px 18px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  font: 600 14px/1 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--shadow-xs);
  transition: all var(--duration) var(--ease);
  min-height: 44px;
  /* iPhone tap feedback */
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  border-color: var(--blue-200);
  background: var(--blue-50);
  color: var(--primary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn:active { transform: scale(.98); }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 2px 12px rgba(37, 99, 235, .30);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(37, 99, 235, .38);
}

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #FFFFFF;
  box-shadow: 0 2px 10px rgba(239, 68, 68, .25);
}

.btn-danger:hover {
  background: #DC2626;
  border-color: #DC2626;
  color: #FFFFFF;
}

/* ── Messages / Alerts ───────────────────────────────────────── */
.messages {
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}

.msg {
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--surface);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
}

.msg-success {
  border-color: var(--success-border);
  background: var(--success-bg);
  color: #065F46;
}

.msg-error {
  border-color: var(--danger-border);
  background: var(--danger-bg);
  color: #991B1B;
}

.msg-info {
  border-color: var(--info-border);
  background: var(--info-bg);
  color: var(--blue-700);
}

/* ── Footer ──────────────────────────────────────────────────── */
footer {
  margin-top: 32px;
  padding: 16px 0;
  border-top: 1px solid var(--border-light);
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  letter-spacing: .2px;
}

/* ── Tables (admin) ──────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th {
  padding: 12px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 2px solid var(--border-light);
  background: var(--blue-50);
}

td {
  padding: 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-2);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--blue-50); }

/* Responsive table scroll on mobile */
@media (max-width: 600px) {
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* ── Badges / Tags ───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2px;
}

.badge-blue   { background: var(--blue-100); color: var(--blue-700); }
.badge-green  { background: var(--success-bg); color: #065F46; }
.badge-red    { background: var(--danger-bg); color: #991B1B; }
.badge-grey   { background: #F1F5F9; color: var(--muted); }

/* ── Divider ─────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 20px 0;
}

/* ── Utility ─────────────────────────────────────────────────── */
.text-muted  { color: var(--muted); }
.text-small  { font-size: 13px; }
.fw-bold     { font-weight: 700; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }

/* ── iPhone safe area ────────────────────────────────────────── */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  body { padding-bottom: env(safe-area-inset-bottom); }
}

/* ── Scrollbars (WebKit) ─────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--blue-200); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-400); }