/* ===========================
   School Planner - Main Styles
   =========================== */

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --success: #2ECC71;
    --success-dark: #27AE60;
    --warning: #F39C12;
    --danger: #E74C3C;
    --purple: #9B59B6;
    --bg: #F8F9FA;
    --card-bg: #FFFFFF;
    --text: #2C3E50;
    --text-light: #7F8C8D;
    --border: #E0E0E0;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===========================
   Navigation
   =========================== */

.main-nav {
    background: white;
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-user {
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    background: color-mix(in srgb, var(--user-colour) 15%, white);
    color: var(--user-colour);
}

/* ===========================
   Main Content
   =========================== */

.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* ===========================
   Buttons
   =========================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    gap: 0.4rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: white;
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-light);
}

.btn-ghost:hover {
    color: var(--text);
    background: rgba(0,0,0,0.05);
}

.btn-small {
    padding: 0.3rem 0.7rem;
    font-size: 0.85rem;
}

.btn-large {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.25rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.btn-icon:hover {
    background: rgba(0,0,0,0.05);
}

/* ===========================
   Login Page
   =========================== */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    background: white;
    border-radius: var(--radius);
    padding: 2.5rem;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.site-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.user-select {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.user-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: white;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 120px;
}

.user-card:hover {
    border-color: var(--user-colour);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--user-colour);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.user-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.user-badge {
    font-size: 0.75rem;
    background: var(--purple);
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
}

.pin-form {
    margin-top: 1rem;
}

.pin-prompt {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.pin-input-wrapper input {
    text-align: center;
    font-size: 2rem;
    letter-spacing: 0.5rem;
    padding: 0.75rem;
    width: 200px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.pin-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
}

/* ===========================
   Admin Dashboard
   =========================== */

.admin-dashboard {
    padding-bottom: 2rem;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.week-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.week-label {
    font-weight: 600;
    font-size: 1.1rem;
    white-space: nowrap;
}

.admin-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.child-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
}

.child-tab {
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    color: var(--text-light);
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    margin-bottom: -2px;
}

.child-tab:hover {
    color: var(--tab-colour);
}

.child-tab.active {
    color: var(--tab-colour);
    border-bottom-color: var(--tab-colour);
}

/* Plan Grid */
.plan-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.day-row {
    background: white;
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
}

.day-row.day-holiday {
    opacity: 0.7;
    background: #FFF9E6;
}

.day-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.day-header h3 {
    font-size: 1rem;
}

.day-date {
    color: var(--text-light);
    font-size: 0.85rem;
}

.holiday-badge {
    background: var(--warning);
    color: white;
    padding: 0.15rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.holiday-message {
    text-align: center;
    padding: 1rem;
    color: var(--text-light);
}

.holiday-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

.task-slots {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.5rem;
}

.task-slot {
    min-height: 80px;
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: border-color 0.2s;
}

.task-slot.has-task {
    border-style: solid;
    border-color: var(--border);
}

.task-slot:hover {
    border-color: var(--primary);
}

.task-card-admin {
    padding: 0.5rem;
    width: 100%;
    height: 100%;
    font-size: 0.8rem;
}

.task-card-admin .task-time {
    display: block;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.75rem;
}

.task-card-admin .task-subject {
    display: block;
    font-size: 0.8rem;
    margin: 0.2rem 0;
}

.task-card-admin .task-desc {
    color: var(--text-light);
    font-size: 0.7rem;
    margin: 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.task-card-admin .task-has-link {
    font-size: 0.7rem;
}

.task-card-admin .task-actions {
    position: absolute;
    top: 2px;
    right: 2px;
    display: none;
}

.task-slot:hover .task-actions {
    display: flex;
}

.add-task-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    width: 100%;
    height: 100%;
    transition: color 0.2s;
}

.add-task-btn:hover {
    color: var(--primary);
}

/* ===========================
   Modal
   =========================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 550px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
}

/* ===========================
   Forms
   =========================== */

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: border-color 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group small {
    color: var(--text-light);
    font-size: 0.8rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 150px;
}

.form-row .form-group.flex-2 {
    flex: 2;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.align-center {
    align-items: center;
}

/* ===========================
   Student/Boys View
   =========================== */

.student-body {
    background: linear-gradient(180deg, #f0f4f8 0%, #e2e8f0 100%);
}

.student-view {
    padding-bottom: 2rem;
}

.student-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.student-greeting h1 {
    font-size: 1.8rem;
    color: var(--student-colour);
}

.date-display {
    color: var(--text-light);
}

.view-toggle {
    display: flex;
    gap: 0.5rem;
}

/* Progress Bar */
.progress-bar-container {
    background: white;
    border-radius: 25px;
    height: 35px;
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--success) 0%, var(--success-dark) 100%);
    border-radius: 25px;
    transition: width 0.5s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text);
}

/* Day Off / Holiday */
.day-off {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.day-off-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.day-off h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.all-done {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #d4fc79 0%, #96e6a1 100%);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.all-done-icon {
    font-size: 3rem;
}

/* Task Cards - Student View */
.tasks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.task-card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.task-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.task-card.task-completed {
    opacity: 0.7;
    background: #F0FFF0;
}

.task-card-content {
    padding: 1.25rem;
    flex: 1;
}

.task-time-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.task-card .task-subject {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: var(--text);
}

.task-card .task-description {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.task-extra {
    background: #FFF9E6;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--warning);
    margin-bottom: 0.5rem;
}

.task-qr-section {
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.task-link-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.task-link-btn:hover {
    background: var(--primary-dark);
}

.qr-code canvas {
    border-radius: var(--radius-sm);
}

.task-card-footer {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border);
    background: #fafafa;
}

.complete-form {
    width: 100%;
}

.complete-btn {
    width: 100%;
    padding: 0.6rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.complete-btn:hover {
    border-color: var(--success);
    background: #F0FFF0;
}

.complete-btn.completed {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

/* Week overview (student full-week view) */
.week-overview {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.week-day-section {
    background: white;
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
}

.week-day-section.is-today {
    border-left: 4px solid var(--primary);
}

.week-day-section.is-holiday {
    background: #FFF9E6;
}

.week-day-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.week-day-header h2 {
    font-size: 1.1rem;
}

.week-day-header small {
    color: var(--text-light);
    font-weight: 400;
}

.today-badge {
    background: var(--primary);
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tasks-grid-compact {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.task-card-mini {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.task-card-mini.task-completed {
    background: #F0FFF0;
    border-color: var(--success);
}

.holiday-mini {
    color: var(--warning);
    font-weight: 600;
}

.no-tasks-mini {
    color: var(--text-light);
    font-style: italic;
    font-size: 0.9rem;
}

.mini-tick {
    margin-left: auto;
}

/* ===========================
   Admin pages (recurring, holidays, settings)
   =========================== */

.admin-page {
    padding-bottom: 2rem;
}

.page-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    flex: 1;
}

.page-header p {
    width: 100%;
    color: var(--text-light);
    margin-top: -0.5rem;
}

.card {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.card h2 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.8rem;
    text-transform: uppercase;
}

.data-table .row-past {
    opacity: 0.5;
}

.data-table .row-inactive {
    opacity: 0.5;
}

.btn-pill {
    padding: 0.2rem 0.6rem;
    border-radius: 15px;
    border: none;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
}

.pill-active {
    background: var(--success);
    color: white;
}

.pill-inactive {
    background: var(--border);
    color: var(--text-light);
}

.empty-state {
    color: var(--text-light);
    font-style: italic;
    text-align: center;
    padding: 2rem;
}

/* User mini avatar (settings page) */
.user-mini {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--user-colour);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.pin-change-form {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.pin-change-form:last-child {
    border-bottom: none;
}

.badge {
    background: var(--border);
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    font-size: 0.75rem;
    color: var(--text-light);
}

/* ===========================
   Alerts
   =========================== */

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-weight: 500;
}

.alert-success {
    background: #D4EDDA;
    color: #155724;
}

.alert-error {
    background: #F8D7DA;
    color: #721C24;
}

/* ===========================
   Footer
   =========================== */

.site-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .task-slots {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .student-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tasks-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .task-slots {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .student-greeting h1 {
        font-size: 1.4rem;
    }
    
    .login-container {
        padding: 1.5rem;
    }
    
    .user-select {
        flex-direction: column;
    }
}


/* ===========================
   PDF Import Page
   =========================== */

.import-form {
    max-width: 400px;
}

.import-form input[type="file"] {
    padding: 1rem;
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    width: 100%;
    cursor: pointer;
    transition: border-color 0.2s;
}

.import-form input[type="file"]:hover {
    border-color: var(--primary);
}

.tips-list {
    padding-left: 1.5rem;
}

.tips-list li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.import-day-card h3 {
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.import-tasks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.import-task-slot {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    background: #fafafa;
}

.import-slot-header {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.import-task-slot .form-group {
    margin-bottom: 0.5rem;
}

.import-task-slot input,
.import-task-slot textarea {
    width: 100%;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: inherit;
}

.import-task-slot textarea {
    resize: vertical;
    min-height: 40px;
}

.import-task-slot input:focus,
.import-task-slot textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group-row {
    display: flex;
    gap: 0.5rem;
}

.form-group-row input {
    flex: 1;
}

.import-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1.5rem 0;
    position: sticky;
    bottom: 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .import-tasks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .import-tasks-grid {
        grid-template-columns: 1fr;
    }
}