* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f4f5f7;
    color: #222;
    -webkit-text-size-adjust: 100%;
}

/* ── header ──────────────────────────────────────── */
header.top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: #fff;
    border-bottom: 1px solid #e3e6ea;
    flex-wrap: wrap;
    gap: 8px;
    position: sticky; top: 0; z-index: 10;
}
.brand a {
    font-weight: 600;
    text-decoration: none;
    color: #1d4ed8;
    font-size: 17px;
}
header nav {
    display: flex;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
}
header nav a { color: #444; text-decoration: none; font-size: 14px; }
header nav a:hover { color: #1d4ed8; }
header .who { color: #888; font-size: 13px; }

main { padding: 20px; max-width: 1280px; margin: 0 auto; }
.flash { padding: 0 20px; max-width: 1280px; margin: 14px auto 0; }
.msg {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 8px;
    font-size: 14px;
    word-break: break-word;
}
.msg.error { background: #fee2e2; color: #991b1b; }
.msg.warning { background: #fef3c7; color: #92400e; }
.msg.success { background: #dcfce7; color: #166534; }

/* ── login ──────────────────────────────────────── */
.login-box {
    max-width: 380px;
    margin: 60px auto;
    padding: 32px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,.06);
}
.login-box h1 { margin-top: 0; font-size: 22px; }
.login-box .sub { color: #666; font-size: 14px; margin: 0 0 18px; }
.login-box label { display: block; margin: 14px 0 4px; font-size: 13px; color: #555; }
.login-box input {
    width: 100%; padding: 12px; font-size: 16px;
    border: 1px solid #cbd5e1; border-radius: 6px;
}
.login-box button {
    margin-top: 18px; width: 100%; padding: 13px;
    background: #1d4ed8; color: #fff; border: 0; border-radius: 6px;
    font-size: 16px; cursor: pointer; font-weight: 500;
}
.login-box button:active { background: #1e40af; }

/* ── card genérico ──────────────────────────────────────── */
.card {
    background: #fff; padding: 20px; border-radius: 8px;
    max-width: 640px; margin: 20px auto;
    box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.btn {
    display: inline-block; padding: 10px 16px; border-radius: 6px;
    background: #f1f5f9; color: #1e293b; text-decoration: none; font-size: 14px;
    border: 1px solid #cbd5e1;
    -webkit-tap-highlight-color: transparent;
}
.btn.primary { background: #1d4ed8; color: #fff; border-color: #1d4ed8; }
.btn.primary:active { background: #1e40af; }
.ok { color: #166534; }

/* ── tabs (scrollam horizontal no mobile) ──────────────────────────────────────── */
.tabs {
    display: flex; gap: 4px; margin-bottom: 18px;
    border-bottom: 1px solid #e3e6ea;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.tab {
    padding: 12px 18px; text-decoration: none; color: #555;
    border-bottom: 2px solid transparent; font-size: 14px;
    white-space: nowrap; flex-shrink: 0;
}
.tab.active { color: #1d4ed8; border-bottom-color: #1d4ed8; font-weight: 600; }
.tab .warn-dot {
    display: inline-block; margin-left: 6px; padding: 0 7px;
    background: #f59e0b; color: #fff; border-radius: 50%; font-size: 11px;
}

.topbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 14px; color: #555; font-size: 14px;
    flex-wrap: wrap; gap: 8px;
}
.empty { color: #888; padding: 32px 16px; text-align: center; }

/* ── grid de fotos ──────────────────────────────────────── */
.grid {
    display: grid; gap: 14px;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.card-foto {
    background: #fff; border-radius: 8px; overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.05);
    display: flex; flex-direction: column;
}
.card-foto img {
    width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block;
    background: #e2e8f0;
}
.card-foto .meta {
    padding: 10px 12px; display: flex; flex-direction: column; gap: 8px;
}
.card-foto .name {
    font-size: 12px; color: #444;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card-foto .btn {
    text-align: center; padding: 10px;
}

/* ── breakpoints ──────────────────────────────────────── */
@media (max-width: 700px) {
    header.top { padding: 10px 14px; }
    .brand a { font-size: 16px; }
    header nav { gap: 10px; }
    header .who { display: none; }
    main { padding: 14px; }
    .flash { padding: 0 14px; }
    .grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 10px;
    }
    .card-foto .meta { padding: 8px 10px; gap: 6px; }
    .card-foto .name { font-size: 11px; }
    .card-foto .btn { padding: 9px; font-size: 13px; }
    .login-box { margin: 24px 14px; padding: 24px; }
}

@media (max-width: 420px) {
    .grid { grid-template-columns: repeat(2, 1fr); }
    .tab { padding: 10px 14px; font-size: 13px; }
}