/* Styles partagés des pages publiques (accueil, connexion, 404) */
:root {
    --bg: #f6f5f2;
    --card: #ffffff;
    --text: #22252b;
    --muted: #6f737b;
    --border: #e4e2dd;
    --accent: #3d5a80;
    --accent-text: #ffffff;
    --error: #b42318;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #15171b;
        --card: #1d2026;
        --text: #e7e8ea;
        --muted: #9a9ea6;
        --border: #2c3038;
        --accent: #8fb3de;
        --accent-text: #11161d;
        --error: #f97066;
    }
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
}

.panel {
    width: 100%;
    max-width: 380px;
    text-align: center;
}

.mark {
    width: 44px;
    height: 44px;
    margin: 0 auto 20px;
    color: var(--accent);
}

h1 {
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}

p { margin: 0 0 24px; color: var(--muted); }

.btn {
    display: inline-block;
    border: 0;
    border-radius: 8px;
    padding: 10px 22px;
    background: var(--accent);
    color: var(--accent-text);
    font: inherit;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: .6; cursor: default; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: left;
}

label { display: block; font-size: 13px; color: var(--muted); margin: 0 0 4px; }

input {
    width: 100%;
    margin: 0 0 16px;
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.card .btn { width: 100%; }

.error { color: var(--error); font-size: 13px; min-height: 20px; margin: 10px 0 0; }

.back { display: inline-block; margin-top: 16px; color: var(--muted); font-size: 13px; text-decoration: none; }
.back:hover { color: var(--text); }

footer {
    padding: 16px;
    text-align: center;
    color: var(--muted);
    font-size: 12px;
}