/* Excellent Student Study Portal – Frontend Styles (Mobile-first) */

:root {
    --essp-primary: #1a73e8;
    --essp-primary-dark: #1557b0;
    --essp-success: #34a853;
    --essp-danger: #ea4335;
    --essp-warning: #fbbc05;
    --essp-text: #1d2327;
    --essp-muted: #646970;
    --essp-border: #dcdcde;
    --essp-bg: #f6f7f7;
    --essp-radius: 12px;
}

.essp-student-dashboard,
.essp-pricing {
    box-sizing: border-box;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 16px 12px 40px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, sans-serif;
    color: var(--essp-text);
    line-height: 1.5;
}

.essp-student-dashboard *,
.essp-pricing * {
    box-sizing: border-box;
}

/* Header */
.essp-dash-header h1,
.essp-pricing-header h1 {
    font-size: 1.5rem;
    margin: 0 0 4px;
    font-weight: 700;
}

.essp-subtitle,
.essp-pricing-header p {
    margin: 0;
    color: var(--essp-muted);
    font-size: 0.95rem;
}

/* Sections */
.essp-section {
    margin-top: 32px;
}

.essp-section h2 {
    font-size: 1.15rem;
    margin: 0 0 14px;
    font-weight: 600;
}

/* Cards */
.essp-card-grid,
.essp-plans-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 600px) {
    .essp-card-grid,
    .essp-plans-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .essp-plans-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.essp-card,
.essp-plan-card {
    background: #fff;
    border: 1px solid var(--essp-border);
    border-radius: var(--essp-radius);
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.essp-plan-card {
    display: flex;
    flex-direction: column;
}

.essp-plan-card h3 {
    margin: 0 0 8px;
    font-size: 1.2rem;
}

.essp-plan-price {
    margin-bottom: 10px;
}

.essp-amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--essp-primary);
}

.essp-duration {
    font-size: 0.9rem;
    color: var(--essp-muted);
}

.essp-plan-desc {
    font-size: 0.9rem;
    color: var(--essp-muted);
    margin: 0 0 16px;
    flex-grow: 1;
}

.essp-meta {
    margin: 0 0 6px;
    font-size: 0.875rem;
    color: var(--essp-muted);
}

/* Buttons */
.essp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
}

.essp-btn-primary {
    background: var(--essp-primary);
    color: #fff;
}

.essp-btn-primary:hover,
.essp-btn-primary:focus {
    background: var(--essp-primary-dark);
    color: #fff;
}

.essp-btn-secondary {
    background: #f0f0f1;
    color: var(--essp-text);
}

.essp-btn-outline {
    background: #fff;
    color: var(--essp-primary);
    border: 1px solid var(--essp-primary);
}

.essp-btn-block {
    width: 100%;
    margin-top: 8px;
}

.essp-btn-sm {
    min-height: 38px;
    padding: 0 16px;
    font-size: 0.875rem;
}

.essp-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* Form elements */
.essp-input,
.essp-class-dropdown {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--essp-border);
    border-radius: 8px;
    font-size: 0.95rem;
    background: #fff;
}

.essp-class-select {
    margin-bottom: 12px;
}

.essp-class-select label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 4px;
}

/* Referral box */
.essp-referral-box {
    display: flex;
    gap: 8px;
    margin: 12px 0 16px;
    flex-wrap: wrap;
}

.essp-referral-box .essp-input {
    flex: 1;
    min-width: 180px;
}

.essp-stats-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.essp-stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--essp-muted);
}

.essp-stat-value {
    font-size: 1.15rem;
    font-weight: 600;
}

/* Table */
.essp-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--essp-border);
    border-radius: var(--essp-radius);
    background: #fff;
}

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

.essp-table th,
.essp-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--essp-border);
}

.essp-table th {
    background: var(--essp-bg);
    font-weight: 600;
}

.essp-table tr:last-child td {
    border-bottom: none;
}

/* Badges */
.essp-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: capitalize;
}

.essp-badge-active {
    background: #e6f4ea;
    color: #137333;
}

.essp-badge-pending {
    background: #fef7e0;
    color: #b06000;
}

.essp-badge-expired,
.essp-badge-cancelled {
    background: #fce8e6;
    color: #c5221f;
}

/* Alerts */
.essp-alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
}

.essp-alert-success {
    background: #e6f4ea;
    color: #137333;
    border: 1px solid #ceead6;
}

.essp-alert-error {
    background: #fce8e6;
    color: #c5221f;
    border: 1px solid #f5c6cb;
}

/* Empty state */
.essp-empty-state {
    background: #fff;
    border: 1px solid var(--essp-border);
    border-radius: var(--essp-radius);
    padding: 32px 20px;
    text-align: center;
}

.essp-empty-state p {
    margin: 0 0 16px;
    color: var(--essp-muted);
}

/* Login prompt */
.essp-login-prompt {
    max-width: 400px;
    margin: 40px auto;
    padding: 32px 24px;
    background: #fff;
    border: 1px solid var(--essp-border);
    border-radius: var(--essp-radius);
    text-align: center;
}

.essp-btn-row {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

/* Footer links */
.essp-footer-links {
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid var(--essp-border);
    font-size: 0.875rem;
    color: var(--essp-muted);
}

.essp-footer-links a {
    color: var(--essp-primary);
    text-decoration: none;
}

/* =========================================================
   Learning Experience (Class / Topic / Lesson)
   ========================================================= */

.essp-learning-body {
    margin: 0;
    background: #f6f7f7;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, sans-serif;
    color: #1d2327;
    line-height: 1.55;
}

.essp-learning {
    max-width: 800px;
    margin: 0 auto;
    padding: 16px 14px 48px;
}

.essp-breadcrumb {
    font-size: 0.85rem;
    color: #646970;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.essp-breadcrumb a {
    color: var(--essp-primary, #1a73e8);
    text-decoration: none;
}

.essp-learn-header h1 {
    font-size: 1.5rem;
    margin: 0 0 4px;
    font-weight: 700;
}

.essp-desc {
    margin: 10px 0 0;
    color: #646970;
    font-size: 0.95rem;
}

.essp-card-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: box-shadow 0.15s ease, transform 0.1s ease;
}

.essp-card-link:hover {
    box-shadow: 0 4px 14px rgba(0,0,0,0.08);
    transform: translateY(-1px);
}

.essp-card-arrow {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--essp-primary, #1a73e8);
    font-size: 1.2rem;
}

.essp-term-title {
    font-size: 1rem;
    font-weight: 600;
    color: #646970;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin: 0 0 10px;
}

.essp-topic-list,
.essp-lesson-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.essp-topic-item,
.essp-lesson-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #fff;
    border: 1px solid #dcdcde;
    border-radius: 12px;
    padding: 14px 16px;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.15s ease;
}

.essp-topic-item:hover,
.essp-lesson-item:hover {
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.essp-topic-info,
.essp-lesson-info {
    flex: 1;
    min-width: 0;
}

.essp-topic-info strong,
.essp-lesson-info strong {
    display: block;
    font-size: 0.95rem;
}

.essp-topic-progress {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 90px;
}

.essp-progress-bar {
    width: 60px;
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}

.essp-progress-fill {
    height: 100%;
    background: var(--essp-primary, #1a73e8);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.essp-lesson-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f0f0f1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    flex-shrink: 0;
}

.essp-status-completed .essp-lesson-num {
    background: #e6f4ea;
    color: #137333;
}

.essp-status-in_progress .essp-lesson-num {
    background: #e8f0fe;
    color: #1a73e8;
}

/* Lesson content */
.essp-lesson-content {
    background: #fff;
    border: 1px solid #dcdcde;
    border-radius: 12px;
    padding: 24px 20px;
    margin-top: 8px;
}

.essp-video-wrap {
    margin: 16px 0 24px;
}

.essp-video-responsive {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 12px;
}

.essp-video-responsive iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.essp-lesson-body {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.essp-lesson-body p {
    margin: 0 0 1em;
}

.essp-key-points,
.essp-summary {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 16px 18px;
    margin-bottom: 16px;
}

.essp-key-points h3,
.essp-summary h3 {
    margin: 0 0 10px;
    font-size: 1rem;
}

.essp-key-points ul {
    margin: 0;
    padding-left: 1.2em;
}

.essp-key-points li {
    margin-bottom: 6px;
}

.essp-lesson-actions {
    margin: 28px 0 20px;
    text-align: center;
}

.essp-btn-success {
    background: #34a853;
    color: #fff;
    cursor: default;
}

.essp-lesson-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #dcdcde;
    font-size: 0.9rem;
}

.essp-lesson-nav a {
    color: var(--essp-primary, #1a73e8);
    text-decoration: none;
    max-width: 45%;
}

.essp-nav-next {
    text-align: right;
    margin-left: auto;
}

@media (min-width: 600px) {
    .essp-learning {
        padding: 24px 20px 60px;
    }
    .essp-learn-header h1 {
        font-size: 1.75rem;
    }
    .essp-lesson-content {
        padding: 32px 28px;
    }
}