/* ============================================================
   Design system — App nutrition
   ============================================================ */

:root {
  --cream: #F4F0E8;
  --cream-2: #EAE4D6;
  --ink: #1F2419;
  --ink-soft: #4A5040;
  --muted: #8B8E80;
  --green: #2D5F3F;
  --green-light: #4A8560;
  --coral: #E8623D;
  --coral-soft: #F5A48A;
  --sun: #E8B340;
  --line: #D8D2C2;
  --card: #FFFFFF;
  --error: #C44A28;
  --success: #2D5F3F;
}

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

html, body {
  background: var(--cream);
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  min-height: 100vh;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
}

.display {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--cream);
  position: relative;
}

/* Boutons */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 16px;
  border-radius: 16px;
  border: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--ink); color: var(--cream); }
.btn-coral { background: var(--coral); color: var(--cream); }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { background: var(--cream-2); }

/* Inputs */
.input-group { margin-bottom: 16px; }
.input-group label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 600;
}
.input-group input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}
.input-group input:focus { border-color: var(--ink); }

/* Messages */
.msg {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  margin-bottom: 16px;
  line-height: 1.5;
}
.msg-error { background: rgba(196,74,40,0.08); color: var(--error); border-left: 3px solid var(--error); }
.msg-success { background: rgba(45,95,63,0.08); color: var(--success); border-left: 3px solid var(--success); }
.msg-info { background: rgba(31,36,25,0.04); color: var(--ink-soft); }