/* Meridian brand frame — hardcoded wordmark M, login, header, footer (v1.132) */

.meridian-mark {
    --mark-height: 34px;
    flex-shrink: 0;
    display: block;
    height: var(--mark-height);
    width: auto;
    user-select: none;
}

.meridian-header .meridian-mark {
    filter: brightness(0) invert(1);
}

[data-theme-resolved="light"] .meridian-header .meridian-mark {
    filter: none;
}

body.admin-dashboard .meridian-mark {
    filter: brightness(0) invert(1);
}

.meridian-practice {
    font-size: 13px;
    color: var(--text-muted, #94a3b8);
    line-height: 1.3;
    margin: 0;
}

.meridian-site-footer {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted, #94a3b8);
    padding: 16px 20px 24px;
    border-top: 1px solid var(--border-subtle, rgba(148, 163, 184, 0.2));
    margin-top: auto;
}

/* Login */
.meridian-login-page {
    font-family: system-ui, sans-serif;
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    background: #f8f9fb;
    color: #1a202c;
}

.meridian-login-shell {
    width: 100%;
    max-width: 400px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 32px 28px 28px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.meridian-login-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    gap: 8px;
}

.meridian-login-shell .meridian-mark {
    --mark-height: 72px;
}

.meridian-login-shell .meridian-practice {
    text-align: center;
    margin: 0;
}

.meridian-login-shell .form-group {
    margin-bottom: 15px;
}

.meridian-login-shell label {
    display: block;
    margin-bottom: 5px;
    font-family: system-ui, sans-serif;
    font-size: 14px;
}

.meridian-login-shell input {
    width: 100%;
    padding: 10px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    font-family: system-ui, sans-serif;
    box-sizing: border-box;
}

.meridian-login-shell button[type="submit"],
.meridian-login-shell .login-button {
    width: 100%;
    padding: 11px;
    background: #1e293b;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: system-ui, sans-serif;
    font-size: 15px;
}

.meridian-login-shell button[type="submit"]:hover,
.meridian-login-shell .login-button:hover {
    background: #0f172a;
}

.meridian-login-shell .error,
.meridian-login-shell .error-message {
    color: #b91c1c;
    margin-top: 10px;
    font-family: system-ui, sans-serif;
    font-size: 14px;
}

.meridian-login-shell .admin-note {
    margin-top: 16px;
    font-size: 12px;
    color: #64748b;
    font-family: system-ui, sans-serif;
}

.meridian-login-page > .meridian-site-footer {
    border-top: none;
    margin-top: 24px;
    background: transparent;
}

/* Role dashboards — header band */
.meridian-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: nowrap;
    width: 100%;
    color: var(--text, #ffffff);
}

.meridian-header .meridian-brand-block {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    min-width: 0;
}

.meridian-header .header-right,
.meridian-header .header-info {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: nowrap;
    margin-left: auto;
    flex-shrink: 0;
}

.meridian-header .time-display {
    line-height: 1.25;
    text-align: center;
}

.meridian-header .clock-label {
    margin-bottom: 2px;
}

.meridian-header .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: nowrap;
}

.meridian-header .user-role-badge {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0.85;
    white-space: nowrap;
}

/* Student + teacher: header / main / footer column shell */
html[data-role="student"] body,
html[data-role="teacher"] body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

html[data-role="student"] .header,
html[data-role="teacher"] .header {
    flex-shrink: 0;
    min-height: 70px;
    height: auto;
    width: 100%;
}

html[data-role="student"] .main-content,
html[data-role="teacher"] .main-content {
    flex: 1;
    min-height: 0;
    height: auto;
}

html[data-role="student"] .meridian-site-footer,
html[data-role="teacher"] .meridian-site-footer {
    flex-shrink: 0;
    margin-top: 0;
}

/* Admin dashboard overrides */
body.admin-dashboard .header {
    padding: 16px 24px;
}

body.admin-dashboard .meridian-mark {
    --mark-height: 38px;
}

body.admin-dashboard .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: none;
    width: 100%;
    gap: 16px;
}

body.admin-dashboard .meridian-site-footer {
    background: #141414;
    border-top-color: #333;
    color: #888;
}