/* ==========================================================================
   CSS Module: Dedicated School Timetable Portal (portal.html)
   Ultra-Modern, High-Contrast Modern Dark Glassmorphic Dashboard
   Supports: Teacher View, Class View & Vacant Rooms Grid
   ========================================================================== */

.portal-body {
    background-color: var(--bg-page);
    background-image: 
        radial-gradient(ellipse 75% 55% at 50% -12%, rgba(20, 184, 166, 0.28) 0%, transparent 68%),
        radial-gradient(circle 600px at 88% 18%, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
}

.portal-header {
    background: rgba(7, 11, 20, 0.85);
    border-bottom: 1px solid var(--border-subtle);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
}

.btn-back-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: var(--transition);
}

.btn-back-home:hover {
    color: #FFFFFF;
    border-color: var(--primary-brand);
    background: rgba(20, 32, 58, 0.95);
    box-shadow: 0 0 16px rgba(45, 212, 191, 0.25);
}

/* Code Entry Hero Card */
.portal-entry-section {
    padding: 55px 0 40px;
}

.portal-entry-card {
    max-width: 680px;
    margin: 0 auto;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7), 0 0 35px rgba(45, 212, 191, 0.15);
    text-align: center;
    backdrop-filter: blur(20px);
}

.portal-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(20, 184, 166, 0.14);
    border: 1px solid rgba(45, 212, 191, 0.35);
    color: var(--primary-light);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.portal-entry-title {
    font-size: 2.1rem;
    font-weight: 900;
    color: #FFFFFF;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.portal-entry-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 30px;
}

.portal-form {
    display: flex;
    gap: 12px;
    max-width: 520px;
    margin: 0 auto;
}

.portal-input-wrap {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
}

.portal-input-icon {
    position: absolute;
    left: 18px;
    color: var(--text-muted);
    font-size: 1.2rem;
}

html[dir="rtl"] .portal-input-icon {
    left: auto;
    right: 18px;
}

.portal-input {
    width: 100%;
    background: rgba(9, 14, 26, 0.85);
    border: 1.5px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 14px 20px 14px 48px;
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #FFFFFF;
    outline: none;
    transition: var(--transition);
}

html[dir="rtl"] .portal-input {
    padding: 14px 48px 14px 20px;
}

.portal-input:focus {
    border-color: var(--primary-brand);
    box-shadow: 0 0 20px rgba(45, 212, 191, 0.35);
}

.btn-portal-submit {
    background: linear-gradient(135deg, var(--primary), var(--primary-brand));
    color: #FFFFFF;
    border: none;
    border-radius: var(--radius-md);
    padding: 0 26px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: 0 4px 14px var(--primary-glow);
    white-space: nowrap;
}

.btn-portal-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(46, 139, 130, 0.4);
}

.portal-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding-top: 18px;
    color: var(--primary);
    font-weight: 700;
}

.portal-error {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #FEF2F2;
    border: 1.5px solid #FCA5A5;
    color: #DC2626;
    border-radius: var(--radius-md);
    padding: 12px 18px;
    margin-top: 20px;
    font-weight: 700;
    font-size: 0.94rem;
}

/* ==========================================================================
   Loaded School Dashboard Layout
   ========================================================================== */
.portal-dashboard {
    padding-bottom: 60px;
}

.dashboard-header-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 24px 30px;
    box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    backdrop-filter: blur(16px);
}

.school-meta-block {
    display: flex;
    flex-direction: column;
}

.school-role-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(20, 184, 166, 0.14);
    border: 1px solid rgba(45, 212, 191, 0.35);
    color: var(--primary-light);
    font-size: 0.78rem;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 999px;
    width: fit-content;
    margin-bottom: 8px;
}

.school-title-text {
    font-size: 1.6rem;
    font-weight: 900;
    color: #FFFFFF;
    margin-bottom: 4px;
}

.school-sub-text {
    font-size: 0.94rem;
    color: var(--text-secondary);
}

.dashboard-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-action-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 9px 18px;
    font-size: 0.88rem;
    font-weight: 700;
    color: #F8FAFC;
    cursor: pointer;
    transition: var(--transition);
}

.btn-action-outline:hover {
    border-color: var(--primary-brand);
    color: var(--primary-brand);
    background: rgba(20, 32, 58, 0.95);
    box-shadow: 0 0 16px rgba(45, 212, 191, 0.25);
}

/* Primary View Modes (Teacher / Class / Vacant Rooms) */
.view-modes-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px;
    border-radius: var(--radius-lg);
    width: fit-content;
    margin-bottom: 24px;
    backdrop-filter: blur(12px);
}

.btn-view-mode {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: none;
    border-radius: 10px;
    padding: 10px 22px;
    font-size: 0.94rem;
    font-weight: 800;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-view-mode.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-brand));
    color: #070B14;
    font-weight: 900;
    box-shadow: 0 4px 16px var(--primary-glow);
}

/* Control & Filter Toolbar */
.portal-toolbar {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 16px 22px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
}

.toolbar-filter-group {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.filter-label {
    font-size: 0.9rem;
    font-weight: 800;
    color: #FFFFFF;
}

.portal-select {
    background: rgba(9, 14, 26, 0.85);
    border: 1.5px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 0.92rem;
    font-weight: 700;
    color: #FFFFFF;
    outline: none;
    cursor: pointer;
    min-width: 200px;
    transition: var(--transition);
}

.portal-select option {
    background: #090E1A;
    color: #FFFFFF;
}

.portal-select:focus {
    border-color: var(--primary-brand);
    box-shadow: 0 0 16px rgba(45, 212, 191, 0.3);
}

/* Day Selector Tabs */
.day-tabs-row {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
}

.btn-day-tab {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 8px 18px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.btn-day-tab:hover {
    border-color: var(--primary-brand);
    color: #FFFFFF;
}

.btn-day-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-brand));
    color: #070B14;
    border-color: var(--primary-brand);
    font-weight: 900;
    box-shadow: 0 4px 16px var(--primary-glow);
}

/* ==========================================================================
   Full Week Timetable Panoramic Grid & Slots Architecture
   ========================================================================== */
.week-grid-table-wrapper {
    background: rgba(11, 18, 33, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    overflow-x: auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    margin-bottom: 24px;
    backdrop-filter: blur(20px);
}

.week-grid-table {
    width: 100%;
    border-collapse: collapse;
    text-align: center;
    min-width: 900px;
}

.grid-period-corner-header {
    background: rgba(7, 11, 20, 0.98) !important;
    color: #CBD5E1;
    font-weight: 800;
    font-size: 0.86rem;
    padding: 16px 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: 140px;
}

.grid-day-header {
    background: rgba(7, 11, 20, 0.98);
    color: #FFFFFF;
    font-weight: 900;
    font-size: 0.98rem;
    padding: 16px 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    min-width: 125px;
}

.grid-day-header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.grid-period-header-cell {
    background: rgba(10, 16, 29, 0.96) !important;
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 10px 8px;
    vertical-align: middle;
    width: 140px;
}

.period-header-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
}

.period-number-pill {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 900;
    padding: 2px 10px;
    border-radius: 999px;
    letter-spacing: 0.3px;
}

.period-number-pill.am {
    background: rgba(45, 212, 191, 0.16);
    color: #5EEAD4;
    border: 1px solid rgba(45, 212, 191, 0.35);
}

.period-number-pill.pm {
    background: rgba(251, 191, 36, 0.16);
    color: #FCD34D;
    border: 1px solid rgba(251, 191, 36, 0.35);
}

.period-time-text {
    font-size: 0.78rem;
    font-weight: 700;
    color: #CBD5E1;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.period-session-tag {
    font-size: 0.7rem;
    font-weight: 800;
}

.period-session-tag.am {
    color: #2DD4BF;
}

.period-session-tag.pm {
    color: #FBBF24;
}

/* Midday Break Divider Row */
.grid-midday-break-row td {
    background: linear-gradient(90deg, rgba(20, 184, 166, 0.12), rgba(99, 102, 241, 0.18), rgba(20, 184, 166, 0.12)) !important;
    border: 1px solid rgba(45, 212, 191, 0.3) !important;
    padding: 9px 12px;
    height: auto !important;
}

.midday-break-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #5EEAD4;
    font-weight: 800;
    font-size: 0.88rem;
    letter-spacing: 0.3px;
}

/* Session Cell & Session Card */
.grid-session-cell {
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 6px;
    vertical-align: middle;
    height: 98px;
    background: rgba(15, 23, 42, 0.5);
}

.grid-empty-cell {
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 6px;
    vertical-align: middle;
    height: 98px;
    background: rgba(13, 20, 36, 0.35);
}

.empty-dash {
    color: rgba(255, 255, 255, 0.15);
    font-size: 1.2rem;
    font-weight: 700;
}

.grid-session-card {
    background: rgba(18, 28, 48, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-inline-start: 4px solid var(--primary-brand);
    border-radius: 10px;
    padding: 9px 10px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
    transition: var(--transition);
    text-align: start;
}

.grid-session-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.65), 0 0 16px rgba(45, 212, 191, 0.25);
    border-color: rgba(45, 212, 191, 0.4);
}

.grid-session-class-title {
    font-size: 1.05rem;
    font-weight: 900;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0.3px;
    line-height: 1.2;
}

.grid-session-subj {
    font-size: 0.92rem;
    font-weight: 900;
    color: #FFFFFF;
    line-height: 1.25;
}

.grid-session-meta-stack {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.meta-class, .meta-teacher {
    font-size: 0.8rem;
    font-weight: 700;
    color: #CBD5E1;
    display: flex;
    align-items: center;
    gap: 5px;
}

.grid-session-room-pill {
    background: rgba(20, 184, 166, 0.2);
    border: 1px solid rgba(45, 212, 191, 0.4);
    color: #5EEAD4;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    width: fit-content;
}

/* ==========================================================================
   Single Day Cards View (Ultra-High Contrast)
   ========================================================================== */
.day-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.schedule-day-card {
    background: rgba(15, 23, 42, 0.92);
    border: 1.5px solid rgba(255, 255, 255, 0.14);
    border-inline-start: 5px solid var(--primary-brand);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    transition: var(--transition);
}

.schedule-day-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.75), 0 0 24px rgba(45, 212, 191, 0.2);
}

.day-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.day-card-slot-badge {
    color: #CBD5E1;
    font-size: 0.86rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.day-card-period-tag {
    font-size: 0.82rem;
    font-weight: 900;
    padding: 3px 12px;
    border-radius: 999px;
}

.day-card-period-tag.am {
    background: rgba(45, 212, 191, 0.18);
    color: #5EEAD4;
    border: 1px solid rgba(45, 212, 191, 0.45);
}

.day-card-period-tag.pm {
    background: rgba(251, 191, 36, 0.16);
    color: #FCD34D;
    border: 1px solid rgba(251, 191, 36, 0.45);
}

.day-card-main-title {
    color: #FFFFFF;
    font-size: 1.35rem;
    font-weight: 900;
    margin-bottom: 12px;
    letter-spacing: 0.3px;
    line-height: 1.3;
}

.day-card-meta-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.day-card-meta-line {
    color: #E2E8F0;
    font-size: 0.92rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.day-card-room-badge {
    background: rgba(20, 184, 166, 0.22);
    color: #5EEAD4;
    border: 1px solid rgba(45, 212, 191, 0.45);
    padding: 5px 14px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: fit-content;
    margin-top: 6px;
}

.empty-day-state-box {
    background: rgba(15, 23, 42, 0.85);
    border: 1.5px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 50px 20px;
    text-align: center;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 14px;
    color: var(--text-muted);
}

.empty-state-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #CBD5E1;
}

/* ==========================================================================
   Vacant Classrooms Grid Matrix (Modern Dark Glassmorphic)
   ========================================================================== */
.vacant-matrix-wrapper {
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 28px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
}

.vacant-day-tabs-row {
    margin-bottom: 24px;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
}

.vacant-periods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.vacant-period-box {
    background: rgba(11, 18, 33, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 18px;
    transition: var(--transition);
}

.vacant-period-box:hover {
    border-color: var(--primary-brand);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 16px rgba(45, 212, 191, 0.2);
    transform: translateY(-2px);
}

.vacant-period-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.vacant-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.vacant-period-num {
    font-size: 0.78rem;
    font-weight: 900;
    padding: 2px 8px;
    border-radius: 999px;
}

.vacant-period-num.am {
    background: rgba(45, 212, 191, 0.16);
    color: #5EEAD4;
    border: 1px solid rgba(45, 212, 191, 0.35);
}

.vacant-period-num.pm {
    background: rgba(251, 191, 36, 0.16);
    color: #FCD34D;
    border: 1px solid rgba(251, 191, 36, 0.35);
}

.vacant-period-time {
    font-weight: 800;
    font-size: 0.88rem;
    color: #FFFFFF;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.vacant-count-badge {
    background: rgba(20, 184, 166, 0.2);
    border: 1px solid rgba(45, 212, 191, 0.4);
    color: #5EEAD4;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 3px 10px;
    border-radius: 999px;
}

.vacant-rooms-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.vacant-room-chip {
    background: rgba(20, 184, 166, 0.16);
    border: 1px solid rgba(45, 212, 191, 0.35);
    border-radius: 8px;
    padding: 5px 12px;
    font-size: 0.84rem;
    font-weight: 800;
    color: #FFFFFF;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.vacant-room-chip i {
    color: var(--primary-brand);
    font-size: 0.82rem;
}

.vacant-room-chip:hover {
    background: rgba(20, 184, 166, 0.3);
    border-color: var(--primary-brand);
    color: #FFFFFF;
    box-shadow: 0 0 10px rgba(45, 212, 191, 0.3);
}

.vacant-all-occupied {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    padding: 6px 0;
}

/* Bottom App Install Banner */
.portal-app-cta-banner {
    margin-top: 36px;
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 24px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
}

/* Print Styles */
@media print {
    .portal-header,
    .portal-entry-section,
    .dashboard-header-actions,
    .view-modes-bar,
    .portal-toolbar,
    .portal-app-cta-banner {
        display: none !important;
    }

    .week-grid-table-wrapper,
    .vacant-matrix-wrapper {
        border: none;
        box-shadow: none;
        background: transparent !important;
    }

    body {
        background: #FFFFFF !important;
        color: #000000 !important;
    }

    .grid-session-card {
        border: 1px solid #000000 !important;
        background: #F1F5F9 !important;
        color: #000000 !important;
    }

    .grid-session-class-title,
    .grid-session-subj {
        color: #000000 !important;
    }
}