/* Styles propres à projets/age-calculator/index.html — extrait du <style> inline (charte partagée : /assets/site.css) */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --ink: #1a1814;
      --paper: #f2f5fa;
      --paper-dark: #e6ecf6;
      --brand: #1d3a5f;
      --gold: #b89a5a;
      --gold-light: #d4b87a;
      --muted: #7a7060;
      --rust: #8b3a1e;
      --nav-h: 72px;
    }

    body {
      font-family: 'DM Mono', monospace;
      background: var(--paper);
      color: var(--ink);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 0 1rem;
    }

    /* En-tête (nav à onglets) commun : voir /assets/site.css */

    /* ── WRAPPER ── */
    .wrapper {
      width: 100%;
      max-width: 720px;
      padding-top: calc(var(--nav-h) + 4rem);
    }

    /* ── HEADER ── */
    header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .eyebrow {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.65rem;
      font-weight: 500;
      letter-spacing: 0.35em;
      text-transform: uppercase;
      color: var(--gold);
      margin-bottom: 0.75rem;
    }

    h1 {
      font-family: 'Cormorant Garamond', serif;
      font-size: clamp(2.4rem, 6vw, 3.8rem);
      font-weight: 300;
      line-height: 1.1;
      color: var(--brand);
    }

    h1 em { font-style: normal; color: var(--brand); }

    .subtitle {
      font-family: 'Montserrat', sans-serif;
      margin-top: 0.8rem;
      font-size: 0.7rem;
      letter-spacing: 0.15em;
      color: var(--muted);
      text-transform: uppercase;
    }

    .header-divider {
      width: 60px;
      height: 1px;
      background: var(--gold);
      margin: 1.5rem auto 0;
    }

    /* ── CARD ── */
    .card {
      background: var(--paper-dark);
      border: 1px solid rgba(184,154,90,0.25);
      padding: 2.5rem;
      margin-bottom: 2rem;
    }

    .input-label {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.6rem;
      font-weight: 500;
      letter-spacing: 0.3em;
      text-transform: uppercase;
      color: var(--gold);
      margin-bottom: 0.6rem;
      display: block;
    }

    .input-row { display: flex; gap: 1rem; margin-bottom: 1.5rem; }
    .input-group { flex: 1; display: flex; flex-direction: column; }

    input[type="date"], input[type="time"] {
      font-family: 'DM Mono', monospace;
      font-size: 0.9rem;
      background: var(--paper);
      border: 1px solid rgba(184,154,90,0.35);
      color: var(--ink);
      padding: 0.75rem 1rem;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
      width: 100%;
      -webkit-appearance: none;
      appearance: none;
    }

    input[type="date"]:focus, input[type="time"]:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px rgba(184,154,90,0.1);
    }

    input::-webkit-calendar-picker-indicator {
      filter: sepia(1) hue-rotate(10deg) saturate(2);
      opacity: 0.6;
      cursor: pointer;
    }

    /* ── BUTTON ── */
    .btn {
      width: 100%;
      padding: 1rem;
      background: var(--ink);
      color: var(--gold-light);
      font-family: 'Montserrat', sans-serif;
      font-size: 0.72rem;
      font-weight: 500;
      letter-spacing: 0.3em;
      text-transform: uppercase;
      border: none;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: transform 0.15s, box-shadow 0.15s;
    }

    .btn::after {
      content: '';
      position: absolute;
      inset: 0;
      background: var(--gold);
      transform: translateX(-101%);
      transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
    }

    .btn:hover { color: var(--ink); transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--gold); }
    .btn:hover::after { transform: translateX(0); }
    .btn span { position: relative; z-index: 1; }
    .btn:active { transform: translate(0,0); box-shadow: none; }

    /* ── DIVIDER ── */
    .divider {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin: 2rem 0;
    }

    .divider::before, .divider::after {
      content: '';
      flex: 1;
      height: 1px;
      background: rgba(184,154,90,0.4);
    }

    .divider-text {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.6rem;
      letter-spacing: 0.3em;
      text-transform: uppercase;
      color: var(--gold);
      white-space: nowrap;
    }

    /* ── SECTION HEADERS ── */
    .section-header {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      margin-bottom: 1.2rem;
      margin-top: 2.2rem;
    }

    .section-header:first-of-type { margin-top: 0; }

    .section-title {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.6rem;
      font-weight: 500;
      letter-spacing: 0.3em;
      text-transform: uppercase;
      color: var(--gold);
      white-space: nowrap;
    }

    .section-line { flex: 1; height: 1px; background: rgba(184,154,90,0.25); }

    /* ── RESULTS ── */
    #results {
      display: none;
      animation: fadeUp 0.5s cubic-bezier(0.4,0,0.2,1) forwards;
    }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(16px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ── AGE GRID ── */
    .grid-5 { display: grid; grid-template-columns: repeat(5,1fr); gap: 0.7rem; }

    .unit-card {
      background: var(--paper);
      border: 1px solid rgba(184,154,90,0.2);
      padding: 1.1rem 0.4rem;
      text-align: center;
      position: relative;
      transition: transform 0.2s;
    }

    .unit-card:hover { transform: translateY(-3px); }

    .unit-card::after {
      content: '';
      position: absolute;
      bottom: 0; left: 20%; right: 20%;
      height: 2px;
      background: var(--gold);
      transform: scaleX(0);
      transition: transform 0.3s;
    }

    .unit-card:hover::after { transform: scaleX(1); }

    .unit-value {
      font-family: 'Cormorant Garamond', serif;
      font-size: clamp(1.3rem,3vw,2rem);
      font-weight: 400;
      color: var(--ink);
      line-height: 1;
      display: block;
      margin-bottom: 0.4rem;
    }

    .unit-label {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.5rem;
      font-weight: 500;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--gold);
    }

    /* ── LIVE COUNTERS ── */
    .grid-counters { display: grid; grid-template-columns: repeat(2,1fr); gap: 0.7rem; }

    .counter-row {
      background: var(--ink);
      padding: 0.85rem 1rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.8rem;
      transition: opacity 0.2s;
    }

    .counter-row:hover { opacity: 0.85; }
    .counter-left { display: flex; align-items: center; gap: 0.55rem; }

    .live-dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--gold-light);
      flex-shrink: 0;
      animation: pulse 1.5s ease-in-out infinite;
    }

    @keyframes pulse {
      0%,100% { opacity: 1; transform: scale(1); }
      50%      { opacity: 0.3; transform: scale(0.6); }
    }

    .counter-label {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.53rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--gold);
    }

    .counter-value {
      font-family: 'Cormorant Garamond', serif;
      font-size: 1.1rem;
      font-weight: 400;
      color: var(--gold-light);
      text-align: right;
      white-space: nowrap;
    }

    /* ── MILESTONES ── */
    .milestones-list { display: flex; flex-direction: column; gap: 0.45rem; }

    .milestone-row {
      display: grid;
      grid-template-columns: 1fr auto auto auto;
      align-items: center;
      gap: 0.8rem;
      padding: 0.75rem 1rem;
      background: var(--paper);
      border: 1px solid rgba(184,154,90,0.2);
      transition: border-color 0.2s, transform 0.15s;
    }

    .milestone-row:hover { border-color: rgba(184,154,90,0.55); transform: translateX(4px); }
    .milestone-row.imminent { border-color: var(--gold); background: rgba(184,154,90,0.06); }

    .milestone-label { font-size: 0.71rem; letter-spacing: 0.04em; color: var(--ink); }

    .milestone-label strong {
      font-family: 'Cormorant Garamond', serif;
      font-size: 0.95rem;
      font-weight: 400;
      font-style: italic;
    }

    .milestone-row.imminent .milestone-label { color: var(--rust); }

    .milestone-date {
      font-size: 0.6rem;
      letter-spacing: 0.07em;
      color: var(--ink);
      opacity: 0.6;
      text-align: right;
    }

    .milestone-countdown {
      font-size: 0.56rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--gold);
      text-align: right;
      white-space: nowrap;
    }

    .milestone-row.imminent .milestone-countdown { color: var(--rust); font-weight: 500; }

    .btn-cal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px; height: 28px;
      flex-shrink: 0;
      background: transparent;
      border: 1px solid rgba(184,154,90,0.4);
      color: var(--gold);
      cursor: pointer;
      text-decoration: none;
      transition: background 0.2s, color 0.2s, border-color 0.2s;
    }

    .btn-cal:hover { background: var(--gold); color: var(--paper); border-color: var(--gold); }
    .btn-cal svg { width: 13px; height: 13px; fill: currentColor; }

    .btn-export-all {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.6rem;
      margin-top: 1rem;
      padding: 0.75rem 1.2rem;
      background: transparent;
      border: 1px solid rgba(184,154,90,0.5);
      color: var(--gold);
      font-family: 'Montserrat', sans-serif;
      font-size: 0.62rem;
      font-weight: 500;
      letter-spacing: 0.25em;
      text-transform: uppercase;
      cursor: pointer;
      width: 100%;
      transition: background 0.2s, color 0.2s;
    }

    .btn-export-all:hover { background: var(--gold); color: var(--ink); }
    .btn-export-all svg { width: 14px; height: 14px; fill: currentColor; flex-shrink: 0; }

    .born-line {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.65rem;
      letter-spacing: 0.1em;
      color: var(--ink);
      opacity: 0.55;
      text-align: center;
      margin-bottom: 1.5rem;
    }

    .born-line strong { color: var(--gold); opacity: 1; font-weight: 500; }

    .error-msg {
      font-family: 'Montserrat', sans-serif;
      color: var(--rust);
      font-size: 0.72rem;
      letter-spacing: 0.05em;
      margin-top: 0.5rem;
      display: none;
    }

    /* Pied de page commun : voir /assets/site.css */

    @media (max-width: 560px) {
      .card { padding: 1.4rem; }
      .input-row { flex-direction: column; }
      .grid-5 { grid-template-columns: repeat(3,1fr); }
      .grid-counters { grid-template-columns: 1fr; }
      .milestone-row { grid-template-columns: 1fr auto; gap: 0.3rem; }
      .milestone-date { display: none; }
    }