/*
 * BRFM Internal - shared theme.
 * Used by the PHP pages (Template/Header.php) and the Flask audio logger (/logs/).
 * Works on its own or layered on top of Bootstrap 5.
 */

:root {
    --brfm-navy: #0f2a47;
    --brfm-navy-2: #17395e;
    --brfm-accent: #2f6fde;
    --brfm-accent-hover: #2459b8;
    --brfm-bg: #f3f5f9;
    --brfm-surface: #ffffff;
    --brfm-border: #e2e7ef;
    --brfm-text: #1c2533;
    --brfm-muted: #637084;
    --brfm-ok: #1f9d63;
    --brfm-warn: #e0952b;
    --brfm-missing: #d6dce6;
    --brfm-danger: #d2423b;
    --brfm-radius: 10px;
    --brfm-shadow: 0 1px 2px rgba(16, 32, 60, .06), 0 4px 16px rgba(16, 32, 60, .06);
    --brfm-font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

    --bs-body-font-family: var(--brfm-font);
    --bs-body-color: var(--brfm-text);
    --bs-primary: var(--brfm-accent);
}

html { min-height: 100%; }
[hidden] { display: none !important; }

body.brfm {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: var(--brfm-font);
    color: var(--brfm-text);
    background-color: var(--brfm-bg);
    /* Subtle corporate backdrop: soft top glow + faint dot grid */
    background-image:
        radial-gradient(1200px 380px at 50% -120px, rgba(47, 111, 222, .10), transparent 70%),
        radial-gradient(rgba(15, 42, 71, .045) 1px, transparent 1px);
    background-size: auto, 22px 22px;
    background-attachment: fixed;
}

/* ---------- Top bar ---------- */
.brfm-topbar {
    background: linear-gradient(90deg, var(--brfm-navy), var(--brfm-navy-2));
    color: #fff;
    box-shadow: 0 2px 10px rgba(10, 25, 45, .25);
    position: sticky;
    top: 0;
    z-index: 1030;
}
.brfm-topbar .brfm-topbar-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 56px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.brfm-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff !important;
    text-decoration: none !important;
    font-weight: 600;
    letter-spacing: .2px;
    white-space: nowrap;
}
.brfm-brand img { height: 28px; width: auto; }
.brfm-nav {
    display: flex;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    flex-wrap: wrap;
}
.brfm-nav a {
    display: block;
    color: rgba(255, 255, 255, .78) !important;
    text-decoration: none !important;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: .95rem;
    transition: background-color .15s, color .15s;
}
.brfm-nav a:hover { color: #fff !important; background: rgba(255, 255, 255, .08); }
.brfm-nav a.active { color: #fff !important; background: rgba(255, 255, 255, .14); }
.brfm-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: .9rem;
    color: rgba(255, 255, 255, .8);
}
.brfm-user button {
    font: inherit;
    font-size: .85rem;
    color: #fff;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 6px;
    padding: 5px 12px;
    cursor: pointer;
}
.brfm-user button:hover, .brfm-user a.brfm-user-link:hover { background: rgba(255, 255, 255, .1); }
.brfm-user a.brfm-user-link {
    font-size: .85rem;
    color: #fff !important;
    text-decoration: none !important;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 6px;
    padding: 5px 12px;
}

/* ---------- Layout ---------- */
.brfm-main {
    flex: 1 0 auto;
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 28px 20px 40px;
    box-sizing: border-box;
}
.brfm-page-header { margin-bottom: 22px; }
.brfm-page-header h1 {
    font-size: 1.6rem;
    font-weight: 600;
    margin: 0 0 4px;
    color: var(--brfm-navy);
}
.brfm-page-header p { margin: 0; color: var(--brfm-muted); }

.brfm-card {
    background: var(--brfm-surface);
    border: 1px solid var(--brfm-border);
    border-radius: var(--brfm-radius);
    box-shadow: var(--brfm-shadow);
    padding: 20px;
}
.brfm-card h2 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0 0 14px;
    color: var(--brfm-navy);
}

.brfm-footer {
    flex-shrink: 0;
    text-align: center;
    color: var(--brfm-muted);
    font-size: .8rem;
    padding: 16px 20px 22px;
}

/* ---------- Buttons ---------- */
.brfm-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font: inherit;
    font-size: .9rem;
    font-weight: 500;
    line-height: 1;
    padding: 9px 14px;
    border-radius: 7px;
    border: 1px solid var(--brfm-border);
    background: var(--brfm-surface);
    color: var(--brfm-text);
    cursor: pointer;
    text-decoration: none;
    transition: background-color .15s, border-color .15s;
}
.brfm-btn:hover { background: #f5f7fb; border-color: #cfd7e4; }
.brfm-btn:disabled { opacity: .5; cursor: not-allowed; }
.brfm-btn-primary { background: var(--brfm-accent); border-color: var(--brfm-accent); color: #fff; }
.brfm-btn-primary:hover { background: var(--brfm-accent-hover); border-color: var(--brfm-accent-hover); }

/* ---------- Home tiles ---------- */
.brfm-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 16px;
}
.brfm-tile {
    display: block;
    text-decoration: none !important;
    color: inherit !important;
    transition: transform .15s, box-shadow .15s, border-color .15s;
}
.brfm-tile:hover { transform: translateY(-2px); border-color: #c9d5ea; box-shadow: 0 6px 22px rgba(16, 32, 60, .10); }
.brfm-tile h3 { font-size: 1.05rem; font-weight: 600; margin: 0 0 6px; color: var(--brfm-navy); }
.brfm-tile p { margin: 0; color: var(--brfm-muted); font-size: .9rem; }

/* ---------- Login ---------- */
.brfm-login {
    max-width: 380px;
    margin: 8vh auto 0;
}
.brfm-login label { display: block; font-size: .85rem; font-weight: 600; margin: 14px 0 6px; }
.brfm-login input {
    width: 100%;
    box-sizing: border-box;
    font: inherit;
    padding: 10px 12px;
    border: 1px solid var(--brfm-border);
    border-radius: 7px;
}
.brfm-login input:focus { outline: 2px solid rgba(47, 111, 222, .35); border-color: var(--brfm-accent); }
.brfm-login .hint { color: var(--brfm-muted); font-size: .8rem; margin-top: 4px; }
.brfm-login .error { color: var(--brfm-danger); font-size: .9rem; margin-top: 12px; min-height: 1.2em; }
.brfm-login .brfm-btn { width: 100%; justify-content: center; margin-top: 18px; padding: 11px; }

/* ---------- Tables inside cards (DataTables / plain) ---------- */
.brfm-card table { width: 100%; border-collapse: collapse; }
.brfm-card table th {
    text-align: left;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--brfm-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--brfm-border);
    padding: 10px 8px;
}
.brfm-card table td { border-bottom: 1px solid #eef1f6; padding: 10px 8px; vertical-align: middle; }

@media (max-width: 720px) {
    .brfm-topbar { position: static; }
    .brfm-topbar .brfm-topbar-inner { padding: 8px 16px 0; gap: 4px 12px; }
    .brfm-brand { order: 1; }
    .brfm-user { order: 2; margin-left: auto; }
    .brfm-nav {
        order: 3;
        flex: 0 0 100%;
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 6px;
        scrollbar-width: none;
    }
    .brfm-nav a { white-space: nowrap; padding: 6px 10px; }
    .brfm-user span { display: none; }
    .brfm-main { padding: 20px 16px 32px; }
}