/**
 * Module 8: Users - Modern Interface Styles
 *
 * @package MMLMS\Users
 * @since 6.0.0
 */

/* ========================================
   CSS VARIABLES
   ======================================== */
.mmlms-student-dashboard,
.mmlms-auth-container {
    --mmlms-primary: #4f46e5;
    --mmlms-primary-hover: #4338ca;
    --mmlms-secondary: #64748b;
    --mmlms-secondary-hover: #475569;
    --mmlms-success: #10b981;
    --mmlms-success-bg: rgba(16, 185, 129, 0.1);
    --mmlms-warning: #f59e0b;
    --mmlms-warning-bg: rgba(245, 158, 11, 0.1);
    --mmlms-danger: #ef4444;
    --mmlms-danger-bg: rgba(239, 68, 68, 0.1);
    --mmlms-info: #3b82f6;
    --mmlms-info-bg: rgba(59, 130, 246, 0.1);
    
    --mmlms-bg: #f8fafc;
    --mmlms-card-bg: rgba(255, 255, 255, 0.95);
    --mmlms-text: #1e293b;
    --mmlms-text-muted: #64748b;
    --mmlms-border: rgba(226, 232, 240, 0.8);
    
    --mmlms-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --mmlms-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --mmlms-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --mmlms-shadow-glow: 0 0 40px rgba(79, 70, 229, 0.15);
    
    --mmlms-radius: 12px;
    --mmlms-radius-lg: 16px;
    --mmlms-radius-xl: 24px;
    
    --mmlms-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   DARK MODE SUPPORT
   ======================================== */
@media (prefers-color-scheme: dark) {
    .mmlms-student-dashboard,
    .mmlms-auth-container {
        --mmlms-bg: #0f172a;
        --mmlms-card-bg: rgba(30, 41, 59, 0.95);
        --mmlms-text: #f1f5f9;
        --mmlms-text-muted: #94a3b8;
        --mmlms-border: rgba(51, 65, 85, 0.8);
        --mmlms-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
        --mmlms-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    }
}

/* ========================================
   LAYOUT CONTAINERS
   ======================================== */
.mmlms-student-dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: var(--mmlms-bg);
    min-height: 100vh;
    color: var(--mmlms-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.mmlms-auth-container {
    max-width: 480px;
    margin: 40px auto;
    padding: 0 20px;
}

/* ========================================
   HEADER
   ======================================== */
.mmlms-student-header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--mmlms-primary) 0%, #7c3aed 100%);
    border-radius: var(--mmlms-radius-xl);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--mmlms-shadow-lg);
}

.mmlms-student-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 10s linear infinite;
}

.mmlms-student-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 10px;
    position: relative;
}

.mmlms-student-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
    position: relative;
}

@keyframes shimmer {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========================================
   TABS
   ======================================== */
.mmlms-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    padding: 6px;
    background: var(--mmlms-card-bg);
    border-radius: var(--mmlms-radius);
    box-shadow: var(--mmlms-shadow-sm);
    backdrop-filter: blur(10px);
    border: 1px solid var(--mmlms-border);
    overflow-x: auto;
}

.mmlms-tab {
    flex: 1;
    min-width: 120px;
    padding: 14px 20px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--mmlms-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--mmlms-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}

.mmlms-tab:hover {
    color: var(--mmlms-primary);
    background: rgba(79, 70, 229, 0.05);
}

.mmlms-tab.active {
    background: var(--mmlms-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

/* ========================================
   TAB PANES
   ======================================== */
.mmlms-tab-pane {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.mmlms-tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   CARDS
   ======================================== */

.mmlms-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 20px;
    color: var(--mmlms-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.mmlms-card-title span {
    font-size: 1.4rem;
}

/* ========================================
   STATS GRID
   ======================================== */
.mmlms-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.mmlms-stat-card {
    background: var(--mmlms-card-bg);
    border-radius: var(--mmlms-radius);
    padding: 24px;
    text-align: center;
    box-shadow: var(--mmlms-shadow);
    border: 1px solid var(--mmlms-border);
    transition: var(--mmlms-transition);
    position: relative;
    overflow: hidden;
}

.mmlms-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--mmlms-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.mmlms-stat-card:hover::before {
    transform: scaleX(1);
}

.mmlms-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--mmlms-shadow-lg);
}

.mmlms-stat-card.success::before { background: var(--mmlms-success); }
.mmlms-stat-card.warning::before { background: var(--mmlms-warning); }
.mmlms-stat-card.danger::before { background: var(--mmlms-danger); }

.mmlms-stat-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}

.mmlms-stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--mmlms-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.mmlms-stat-card.success .mmlms-stat-value { color: var(--mmlms-success); }
.mmlms-stat-card.warning .mmlms-stat-value { color: var(--mmlms-warning); }
.mmlms-stat-card.danger .mmlms-stat-value { color: var(--mmlms-danger); }

.mmlms-stat-label {
    font-size: 0.9rem;
    color: var(--mmlms-text-muted);
    font-weight: 500;
}

/* ========================================
   SESSION LIST
   ======================================== */
.mmlms-session-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mmlms-session-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--mmlms-bg);
    border-radius: var(--mmlms-radius);
    border: 1px solid var(--mmlms-border);
    transition: var(--mmlms-transition);
}

.mmlms-session-card:hover {
    background: white;
    box-shadow: var(--mmlms-shadow);
    transform: translateX(4px);
}

.mmlms-session-card.completed {
    border-left: 4px solid var(--mmlms-success);
}

.mmlms-session-card.in-progress {
    border-left: 4px solid var(--mmlms-warning);
}

.mmlms-session-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 8px;
    color: var(--mmlms-text);
}

.mmlms-session-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--mmlms-text-muted);
}

.mmlms-session-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ========================================
   FORMS
   ======================================== */
.mmlms-form {
    max-width: 100%;
}

.mmlms-profile-plan {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin: 4px 0 18px;
    padding: 12px 14px;
    border: 1px solid var(--mmlms-border);
    border-radius: var(--mmlms-radius);
    background: var(--mmlms-bg);
}

.mmlms-profile-plan-label {
    font-size: 0.85rem;
    color: var(--mmlms-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.mmlms-profile-plan-value {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.mmlms-profile-plan-badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    border: 1px solid transparent;
}

.mmlms-profile-plan-badge.tier-0 {
    background: rgba(100, 116, 139, 0.12);
    border-color: rgba(100, 116, 139, 0.35);
    color: #475569;
}

.mmlms-profile-plan-badge.tier-1 {
    background: rgba(59, 130, 246, 0.14);
    border-color: rgba(59, 130, 246, 0.35);
    color: #1d4ed8;
}

.mmlms-profile-plan-badge.tier-2 {
    background: rgba(124, 58, 237, 0.14);
    border-color: rgba(124, 58, 237, 0.35);
    color: #6d28d9;
}

.mmlms-profile-plan-tier {
    color: var(--mmlms-text-muted);
    font-size: 0.85rem;
}

.mmlms-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.mmlms-form-group {
    margin-bottom: 24px;
}

.mmlms-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--mmlms-text);
}

.mmlms-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.mmlms-input-icon {
    position: absolute;
    left: 14px;
    color: var(--mmlms-text-muted);
    font-size: 1.1rem;
    pointer-events: none;
}

.mmlms-form input[type="text"],
.mmlms-form input[type="email"],
.mmlms-form input[type="password"],
.mmlms-form input[type="tel"] {
    width: 100%;
    padding: 12px 14px 12px 44px;
    border: 2px solid var(--mmlms-border);
    border-radius: var(--mmlms-radius);
    font-size: 1rem;
    background: var(--mmlms-bg);
    color: var(--mmlms-text);
    transition: var(--mmlms-transition);
}

.mmlms-form select,
.mmlms-form textarea,
.mmlms-form input[type="file"] {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid var(--mmlms-border);
    border-radius: var(--mmlms-radius);
    font-size: 1rem;
    background: var(--mmlms-bg);
    color: var(--mmlms-text);
    transition: var(--mmlms-transition);
}

.mmlms-form textarea {
    min-height: 110px;
    resize: vertical;
}

.mmlms-form input:focus {
    outline: none;
    border-color: var(--mmlms-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.mmlms-form select:focus,
.mmlms-form textarea:focus,
.mmlms-form input[type="file"]:focus {
    outline: none;
    border-color: var(--mmlms-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.mmlms-goal-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 10px;
}

.mmlms-profile-photo-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
    padding: 12px;
    border: 1px solid var(--mmlms-border);
    border-radius: var(--mmlms-radius);
    background: var(--mmlms-bg);
}

.mmlms-profile-photo-preview {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 2px solid var(--mmlms-border);
    object-fit: cover;
    background: #fff;
}

.mmlms-form input[readonly] {
    background: var(--mmlms-border);
    cursor: not-allowed;
}

.mmlms-password-toggle {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--mmlms-text-muted);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 1.1rem;
}

.mmlms-password-toggle:hover {
    color: var(--mmlms-primary);
}

.mmlms-form-hint {
    font-size: 0.85rem;
    color: var(--mmlms-text-muted);
    margin: 6px 0 0;
}

.mmlms-form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 10px;
}

.mmlms-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.95rem;
}

.mmlms-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--mmlms-primary);
}

.mmlms-link {
    color: var(--mmlms-primary);
    text-decoration: none;
    font-weight: 500;
}

.mmlms-link:hover {
    text-decoration: underline;
}

.mmlms-form-message {
    padding: 12px 16px;
    border-radius: var(--mmlms-radius);
    margin-bottom: 20px;
    display: none;
    font-size: 0.95rem;
}

.mmlms-form-message.success {
    display: block;
    background: var(--mmlms-success-bg);
    color: var(--mmlms-success);
    border: 1px solid var(--mmlms-success);
}

.mmlms-form-message.error {
    display: block;
    background: var(--mmlms-danger-bg);
    color: var(--mmlms-danger);
    border: 1px solid var(--mmlms-danger);
}

.mmlms-form-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.85rem;
    color: var(--mmlms-text-muted);
}

/* ========================================
   BUTTONS
   ======================================== */
/* Base .mmlms-btn + primary/secondary/danger are standardized in ui-foundation.css */

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

.mmlms-btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.mmlms-btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.mmlms-btn-block {
    width: 100%;
}

/* ========================================
   AUTH CONTAINER
   ======================================== */
.mmlms-auth-section {
    background: var(--mmlms-card-bg);
    border-radius: var(--mmlms-radius-xl);
    padding: 40px;
    box-shadow: var(--mmlms-shadow-lg);
    border: 1px solid var(--mmlms-border);
    backdrop-filter: blur(10px);
}

.mmlms-auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.mmlms-auth-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    display: block;
}

.mmlms-auth-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--mmlms-text);
}

.mmlms-auth-subtitle {
    font-size: 1rem;
    color: var(--mmlms-text-muted);
    margin: 0;
}

.mmlms-auth-divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    color: var(--mmlms-text-muted);
    font-size: 0.9rem;
}

.mmlms-auth-divider::before,
.mmlms-auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--mmlms-border);
}

.mmlms-auth-divider span {
    padding: 0 16px;
}

.mmlms-verification-content {
    text-align: center;
    padding: 20px 0;
}

.mmlms-verification-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 24px;
}

/* ========================================
   LOGGED IN VIEW
   ======================================== */
.mmlms-logged-in {
    text-align: center;
}

.mmlms-logged-in-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--mmlms-border);
}

.mmlms-logged-in-avatar img {
    border-radius: 50%;
    border: 3px solid var(--mmlms-primary);
    padding: 3px;
}

.mmlms-logged-in-info {
    text-align: left;
}

.mmlms-logged-in-info h3 {
    margin: 0 0 4px;
    font-size: 1.5rem;
}

.mmlms-logged-in-info p {
    margin: 0;
    color: var(--mmlms-text-muted);
}

.mmlms-logged-in-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
    BADGES
    ======================================== */

.mmlms-badge-success {
    background: var(--mmlms-success-bg);
    color: var(--mmlms-success);
}

.mmlms-badge-warning {
    background: var(--mmlms-warning-bg);
    color: var(--mmlms-warning);
}

.mmlms-badge-danger {
    background: var(--mmlms-danger-bg);
    color: var(--mmlms-danger);
}

.mmlms-verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--mmlms-success-bg);
    color: var(--mmlms-success);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 8px;
}

/* ========================================
   ALERTS
   ======================================== */
.mmlms-alert {
    padding: 16px 20px;
    border-radius: var(--mmlms-radius);
    margin-bottom: 20px;
}

.mmlms-alert-warning {
    background: var(--mmlms-warning-bg);
    color: #92400e;
    border: 1px solid var(--mmlms-warning);
}

.mmlms-alert-success {
    background: var(--mmlms-success-bg);
    color: #065f46;
    border: 1px solid var(--mmlms-success);
}

.mmlms-alert-error {
    background: var(--mmlms-danger-bg);
    color: #991b1b;
    border: 1px solid var(--mmlms-danger);
}

/* ========================================
   EMPTY STATE
   ======================================== */
.mmlms-empty-state {
    text-align: center;
    padding: 60px 20px;
}

.mmlms-empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.mmlms-empty-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 8px;
    color: var(--mmlms-text);
}

.mmlms-empty-text {
    color: var(--mmlms-text-muted);
    margin: 0 0 24px;
}

/* ========================================
   VERIFICATION STATUS
   ======================================== */
.mmlms-verification-status {
    text-align: center;
    padding: 20px;
}

.mmlms-verification-icon {
    font-size: 5rem;
    margin-bottom: 20px;
}

.mmlms-verification-icon.success {
    color: var(--mmlms-success);
}

.mmlms-verification-icon.error {
    color: var(--mmlms-danger);
}

/* ========================================
   PASSWORD STRENGTH
   ======================================== */
.mmlms-password-strength {
    height: 4px;
    background: var(--mmlms-border);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.mmlms-password-strength::before {
    content: '';
    display: block;
    height: 100%;
    width: 0;
    transition: all 0.3s ease;
}

.mmlms-password-strength.weak::before {
    width: 33%;
    background: var(--mmlms-danger);
}

.mmlms-password-strength.medium::before {
    width: 66%;
    background: var(--mmlms-warning);
}

.mmlms-password-strength.strong::before {
    width: 100%;
    background: var(--mmlms-success);
}

/* ========================================
   NOTIFICATIONS
   ======================================== */
.mmlms-notice {
    padding: 20px;
    background: var(--mmlms-info-bg);
    color: var(--mmlms-info);
    border-radius: var(--mmlms-radius);
    text-align: center;
    font-weight: 500;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .mmlms-student-dashboard {
        padding: 10px;
    }
    
    .mmlms-student-header {
        padding: 30px 20px;
        border-radius: var(--mmlms-radius-lg);
    }
    
    .mmlms-student-header h1 {
        font-size: 1.5rem;
    }
    
    .mmlms-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .mmlms-tab {
        min-width: 100px;
        padding: 12px 16px;
        font-size: 0.875rem;
    }
    
    .mmlms-student-dashboard .mmlms-card,
    .mmlms-auth-container .mmlms-card {
        padding: 20px;
    }
    
    .mmlms-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .mmlms-stat-value {
        font-size: 1.75rem;
    }
    
    .mmlms-session-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .mmlms-form-grid {
        grid-template-columns: 1fr;
    }
    
    .mmlms-auth-section {
        padding: 24px;
    }
    
    .mmlms-logged-in-header {
        flex-direction: column;
        text-align: center;
    }
    
    .mmlms-logged-in-info {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .mmlms-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .mmlms-session-meta {
        flex-direction: column;
        gap: 4px;
    }
    
    .mmlms-verification-actions {
        flex-direction: column;
    }
    
    .mmlms-verification-actions .mmlms-btn {
        width: 100%;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.mmlms-session-card {
    animation: slideIn 0.3s ease-out;
}

.mmlms-btn-primary:not(:disabled):active {
    transform: scale(0.98);
}

/* Loading state */
.mmlms-loading {
    position: relative;
    pointer-events: none;
}

.mmlms-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--mmlms-border);
    border-top-color: var(--mmlms-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   REQUIRED / OPTIONAL FIELD INDICATORS
   ======================================== */
.mmlms-required {
    color: var(--mmlms-danger, #ef4444);
    font-weight: 600;
}

.mmlms-optional {
    color: var(--mmlms-text-muted, #64748b);
    font-weight: 400;
    font-size: 0.85em;
}

label .mmlms-required,
label .mmlms-optional {
    margin-left: 4px;
}