/**
 * SimplifiedCircle Studio Frontend Base Styles
 * Themeable Design System - Base Layer
 *
 * This file provides the structural styles that work with any theme.
 * Colors are defined using CSS variables that themes override.
 *
 * @package SimplifiedCircle_Studio
 * @since 3.0.0
 */

/* ==========================================================================
   CSS Variables - Base Values (Overridden by themes)
   ========================================================================== */
:root {
    /* Theme Colors - Matching SimplifiedCircle.com Design */
    /* Primary - Dark Navy Slate */
    --scs-theme-primary: #5ba4b5;
    --scs-theme-primary-hover: #4a8fa0;
    --scs-theme-primary-light: #7fc4d4;
    --scs-theme-primary-dark: #3d8a9a;

    /* Secondary - Deep Navy Background */
    --scs-theme-secondary: #1a2332;
    --scs-theme-secondary-light: #2a3444;
    --scs-theme-secondary-dark: #141b27;

    /* Accent - Teal/Cyan highlight */
    --scs-theme-accent: #5ba4b5;
    --scs-theme-accent-light: rgba(91, 164, 181, 0.15);

    /* Background colors */
    --scs-theme-bg-dark: #1a2332;
    --scs-theme-bg-card: rgba(26, 35, 50, 0.95);
    --scs-theme-bg-card-hover: rgba(42, 52, 68, 0.95);

    /* Text Colors */
    --scs-theme-text-primary: #ffffff;
    --scs-theme-text-secondary: #b8c4d0;
    --scs-theme-text-muted: #8895a7;

    /* Computed Theme Gradients */
    --scs-theme-gradient: linear-gradient(135deg, #1a2332 0%, #2a3444 100%);
    --scs-theme-gradient-accent: linear-gradient(135deg, #5ba4b5 0%, #4a8fa0 100%);
    --scs-theme-gradient-subtle: linear-gradient(135deg, rgba(91, 164, 181, 0.1) 0%, rgba(26, 35, 50, 0.1) 100%);

    /* Status Colors - Universal */
    --scs-success: #10b981;
    --scs-danger: #ef4444;
    --scs-warning: #f59e0b;
    --scs-info: #5ba4b5;

    /* Neutral Colors - Dark Theme Oriented */
    --scs-light: #f8fafc;
    --scs-dark: #1a2332;
    --scs-gray-50: #f8fafc;
    --scs-gray-100: #e8ecf0;
    --scs-gray-200: #c8d1db;
    --scs-gray-300: #a8b5c4;
    --scs-gray-400: #8895a7;
    --scs-gray-500: #6b7a8c;
    --scs-gray-600: #4a5668;
    --scs-gray-700: #2a3444;
    --scs-gray-800: #1a2332;
    --scs-gray-900: #141b27;

    /* Design Tokens */
    --scs-border-radius: 8px;
    --scs-border-radius-lg: 12px;
    --scs-border-radius-xl: 16px;
    --scs-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --scs-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.25), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
    --scs-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --scs-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.35), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    --scs-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --scs-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Typography - Serif headlines like SimplifiedCircle.com */
    --scs-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --scs-font-headline: 'Playfair Display', Georgia, 'Times New Roman', serif;
}

/* ==========================================================================
   Base Components - Buttons
   ========================================================================== */
.scs-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.5;
    border: none;
    border-radius: var(--scs-border-radius);
    cursor: pointer;
    transition: var(--scs-transition);
    text-decoration: none;
    font-family: inherit;
}

.scs-btn-primary {
    background: var(--scs-theme-gradient-accent);
    color: #fff;
    box-shadow: 0 4px 15px rgba(91, 164, 181, 0.3);
    border: 1px solid var(--scs-theme-primary);
}

.scs-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(91, 164, 181, 0.4);
    color: #fff;
    background: var(--scs-theme-primary-hover);
}

.scs-btn-secondary {
    background: var(--scs-gray-100);
    color: var(--scs-gray-700);
    border: 2px solid var(--scs-gray-200);
}

.scs-btn-secondary:hover {
    background: var(--scs-gray-200);
    border-color: var(--scs-gray-300);
}

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

.scs-btn-disabled,
.scs-btn:disabled {
    background: var(--scs-gray-200);
    color: var(--scs-gray-400);
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.scs-btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
}

.scs-btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* ==========================================================================
   Schedule Wrapper & Header
   ========================================================================== */
.scs-schedule-wrapper {
    font-family: var(--scs-font-family);
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    background: var(--scs-theme-bg-dark);
    min-height: 100vh;
}

.scs-schedule-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem 2rem;
    background: var(--scs-theme-bg-card);
    border-radius: var(--scs-border-radius-lg);
    box-shadow: var(--scs-shadow);
    border: 1px solid var(--scs-theme-primary);
}

.scs-schedule-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.scs-schedule-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--scs-theme-secondary-light);
    border: 2px solid var(--scs-theme-primary);
    border-radius: var(--scs-border-radius);
    cursor: pointer;
    font-size: 1rem;
    color: var(--scs-theme-primary);
    transition: var(--scs-transition);
}

.scs-schedule-nav-btn:hover {
    background: var(--scs-theme-primary);
    border-color: var(--scs-theme-primary);
    color: #ffffff;
}

.scs-schedule-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0;
    color: var(--scs-theme-text-primary);
    letter-spacing: -0.02em;
    font-family: var(--scs-font-headline);
    font-style: italic;
}

.scs-schedule-filters select {
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--scs-theme-primary);
    border-radius: var(--scs-border-radius);
    font-size: 0.9375rem;
    color: var(--scs-theme-text-primary);
    background: var(--scs-theme-secondary-light);
    cursor: pointer;
    transition: var(--scs-transition);
    font-weight: 500;
}

.scs-schedule-filters select:focus {
    outline: none;
    border-color: var(--scs-theme-primary-light);
    box-shadow: 0 0 0 4px rgba(91, 164, 181, 0.25);
}

/* ==========================================================================
   Schedule Grid Layout
   ========================================================================== */
.scs-schedule-grid {
    display: grid;
    gap: 1rem;
}

.scs-view-week .scs-schedule-grid {
    grid-template-columns: repeat(7, 1fr);
}

.scs-view-month .scs-schedule-grid {
    grid-template-columns: repeat(7, 1fr);
}

.scs-schedule-day {
    background: var(--scs-theme-bg-card);
    border: 1px solid var(--scs-theme-secondary-light);
    border-radius: var(--scs-border-radius-lg);
    overflow: hidden;
    transition: var(--scs-transition);
}

.scs-schedule-day:hover {
    box-shadow: var(--scs-shadow-md);
    border-color: var(--scs-theme-primary);
}

.scs-schedule-day.scs-today {
    border-color: var(--scs-theme-primary);
    box-shadow: 0 0 0 3px rgba(91, 164, 181, 0.25);
}

.scs-schedule-day-header {
    background: var(--scs-theme-secondary-light);
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--scs-theme-secondary);
}

.scs-schedule-day.scs-today .scs-schedule-day-header {
    background: var(--scs-theme-gradient-accent);
    color: white;
}

.scs-day-name {
    display: block;
    font-weight: 700;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--scs-theme-text-muted);
    margin-bottom: 4px;
}

.scs-schedule-day.scs-today .scs-day-name {
    color: rgba(255, 255, 255, 0.8);
}

.scs-day-date {
    display: block;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--scs-theme-text-primary);
}

.scs-schedule-day.scs-today .scs-day-date {
    color: white;
}

.scs-schedule-day-classes {
    padding: 0.75rem;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.scs-no-classes {
    text-align: center;
    padding: 1.5rem 1rem;
    color: var(--scs-theme-text-muted);
    font-size: 0.8125rem;
    font-style: italic;
}

/* ==========================================================================
   Class Cards (Schedule & List Views)
   ========================================================================== */
.scs-schedule-class-card,
.scs-class-card {
    background: var(--scs-theme-secondary-light);
    border: 1px solid var(--scs-theme-secondary);
    border-radius: var(--scs-border-radius);
    padding: 0.875rem;
    transition: var(--scs-transition);
    cursor: pointer;
    text-decoration: none;
    display: block;
    position: relative;
}

.scs-schedule-class-card:hover,
.scs-class-card:hover {
    background: var(--scs-theme-bg-card-hover);
    border-color: var(--scs-theme-primary);
    transform: translateY(-2px);
    box-shadow: var(--scs-shadow);
}

.scs-schedule-class-card.scs-class-full,
.scs-class-card.scs-class-full {
    opacity: 0.6;
}

.scs-schedule-class-card.scs-class-booked,
.scs-class-card.scs-class-booked {
    border-color: var(--scs-success);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.scs-schedule-class-card.scs-class-booked::before,
.scs-class-card.scs-class-booked::before {
    content: '\2713';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 20px;
    height: 20px;
    background: var(--scs-success);
    color: white;
    border-radius: 50%;
    font-size: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scs-class-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 700;
    font-size: 0.8125rem;
    color: var(--scs-theme-primary);
    margin-bottom: 0.375rem;
}

.scs-class-name {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 0 0.375rem 0;
    color: var(--scs-theme-text-primary);
    line-height: 1.3;
}

.scs-class-teacher {
    font-size: 0.75rem;
    color: var(--scs-theme-text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.scs-class-duration {
    font-size: 0.6875rem;
    color: var(--scs-theme-text-muted);
    margin-top: 0.25rem;
}

.scs-class-spots {
    margin-top: 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.scs-spots-available {
    color: var(--scs-success);
}

.scs-spots-limited {
    color: var(--scs-warning);
}

.scs-spots-full {
    color: var(--scs-danger);
}

.scs-class-action {
    margin-top: 0.75rem;
}

.scs-btn-book {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
    width: 100%;
}

/* ==========================================================================
   Modern Class List View (classes-list.php)
   ========================================================================== */
.scs-classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.scs-class-card-modern {
    background: var(--scs-theme-bg-card);
    border-radius: var(--scs-border-radius-lg);
    overflow: hidden;
    box-shadow: var(--scs-shadow);
    transition: var(--scs-transition);
    border: 1px solid var(--scs-theme-secondary-light);
}

.scs-class-card-modern:hover {
    transform: translateY(-4px);
    box-shadow: var(--scs-shadow-lg);
    border-color: var(--scs-theme-primary);
}

.scs-class-card-header {
    background: var(--scs-theme-gradient-accent);
    padding: 1.25rem 1.5rem;
    color: white;
    position: relative;
}

.scs-class-time-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1rem;
    border-radius: var(--scs-border-radius);
    margin-bottom: 0.75rem;
}

.scs-time-start {
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1;
}

.scs-time-duration {
    font-size: 0.6875rem;
    opacity: 0.9;
    margin-top: 4px;
}

.scs-class-card-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.3;
}

.scs-class-card-body {
    padding: 1.5rem;
}

.scs-class-meta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.scs-class-meta-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--scs-theme-text-secondary);
}

.scs-class-meta-icon {
    width: 32px;
    height: 32px;
    background: var(--scs-theme-accent-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--scs-theme-primary);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.scs-class-availability {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--scs-theme-secondary-light);
    border-radius: var(--scs-border-radius);
    margin-bottom: 1rem;
}

.scs-availability-text {
    font-size: 0.8125rem;
    color: var(--scs-theme-text-secondary);
}

.scs-availability-count {
    font-weight: 700;
    color: var(--scs-theme-primary);
}

/* ==========================================================================
   Customer Portal Styles
   ========================================================================== */
.scs-customer-portal {
    font-family: var(--scs-font-family);
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    background: var(--scs-theme-bg-dark);
    min-height: 100vh;
}

.scs-portal-section {
    background: var(--scs-theme-bg-card);
    border: 1px solid var(--scs-theme-secondary-light);
    border-radius: var(--scs-border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--scs-shadow);
}

.scs-portal-section h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--scs-theme-text-primary);
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--scs-font-headline);
    font-style: italic;
}

.scs-portal-profile {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.scs-portal-avatar img {
    border-radius: 50%;
    border: 4px solid var(--scs-theme-primary);
    box-shadow: var(--scs-shadow);
}

.scs-portal-user-info h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--scs-theme-text-primary);
    font-family: var(--scs-font-headline);
    font-style: italic;
}

.scs-portal-user-info p {
    margin: 0.5rem 0 0 0;
    color: var(--scs-theme-text-secondary);
    font-size: 0.9375rem;
}

.scs-portal-empty {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--scs-theme-text-muted);
    background: var(--scs-theme-secondary-light);
    border-radius: var(--scs-border-radius);
    border: 2px dashed var(--scs-theme-secondary);
}

/* Membership Cards */
.scs-membership-cards {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.scs-membership-card {
    background: var(--scs-theme-secondary-light);
    border: 2px solid var(--scs-theme-secondary);
    border-radius: var(--scs-border-radius-lg);
    padding: 1.5rem;
    transition: var(--scs-transition);
}

.scs-membership-card:hover {
    border-color: var(--scs-theme-primary);
    box-shadow: var(--scs-shadow-md);
}

.scs-membership-card.scs-membership-active {
    border-color: var(--scs-theme-primary);
    background: var(--scs-theme-accent-light);
}

.scs-membership-card h4 {
    margin: 0 0 0.75rem 0;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--scs-theme-text-primary);
}

.scs-membership-card.scs-membership-expired {
    opacity: 0.5;
}

.scs-status-expired {
    color: var(--scs-danger);
    font-weight: 600;
    font-size: 0.875rem;
}

.scs-status-active {
    color: var(--scs-success);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Classes List in Portal */
.scs-classes-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.scs-class-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.25rem;
    background: var(--scs-theme-secondary-light);
    border: 1px solid var(--scs-theme-secondary);
    border-radius: var(--scs-border-radius-lg);
    transition: var(--scs-transition);
}

.scs-class-item:hover {
    background: var(--scs-theme-bg-card-hover);
    border-color: var(--scs-theme-primary);
    box-shadow: var(--scs-shadow);
}

.scs-class-date {
    text-align: center;
    min-width: 70px;
    padding: 1rem;
    background: var(--scs-theme-gradient-accent);
    border-radius: var(--scs-border-radius);
    color: white;
}

.scs-date-day {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
}

.scs-date-month {
    display: block;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
    margin-top: 4px;
}

.scs-class-details {
    flex: 1;
}

.scs-class-details h4 {
    margin: 0 0 0.375rem 0;
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--scs-theme-text-primary);
}

.scs-class-details p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--scs-theme-text-secondary);
}

.scs-btn-cancel {
    background: transparent;
    color: var(--scs-danger);
    border: 2px solid var(--scs-danger);
    font-size: 0.8125rem;
    padding: 0.625rem 1rem;
    font-weight: 600;
}

.scs-btn-cancel:hover {
    background: var(--scs-danger);
    color: white;
}

.scs-status-attended {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--scs-success);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50px;
}

.scs-status-missed {
    color: var(--scs-gray-400);
    font-weight: 500;
    font-size: 0.875rem;
}

/* ==========================================================================
   Class Signup Page
   ========================================================================== */
.scs-class-signup {
    font-family: var(--scs-font-family);
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    background: var(--scs-theme-bg-dark);
    min-height: 100vh;
}

.scs-class-signup-header {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    padding: 2.5rem;
    background: var(--scs-theme-bg-card);
    border-radius: var(--scs-border-radius-xl);
    box-shadow: var(--scs-shadow-lg);
    border: 1px solid var(--scs-theme-primary);
}

.scs-class-date-badge {
    background: var(--scs-theme-gradient-accent);
    color: white;
    padding: 1.5rem 2rem;
    border-radius: var(--scs-border-radius-lg);
    text-align: center;
    min-width: 120px;
    box-shadow: 0 8px 25px rgba(91, 164, 181, 0.3);
}

.scs-date-weekday {
    display: block;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.9;
    font-weight: 600;
}

.scs-class-signup-title {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.scs-class-signup-title h1 {
    margin: 0 0 0.75rem 0;
    font-size: 2rem;
    font-weight: 800;
    color: var(--scs-gray-900);
    letter-spacing: -0.02em;
}

.scs-class-time-info {
    color: var(--scs-gray-500);
    margin: 0;
    font-size: 1.0625rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.scs-class-signup-content {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 2.5rem;
}

.scs-class-signup-main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.scs-class-signup-main > div {
    background: white;
    padding: 2rem;
    border-radius: var(--scs-border-radius-lg);
    border: 1px solid var(--scs-gray-200);
    box-shadow: var(--scs-shadow-sm);
}

.scs-class-signup-main h3 {
    font-size: 0.8125rem;
    font-weight: 700;
    margin: 0 0 1.25rem 0;
    color: var(--scs-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.scs-class-description {
    color: var(--scs-gray-600);
    line-height: 1.7;
    font-size: 1rem;
}

.scs-instructor-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    background: var(--scs-gray-50);
    border-radius: var(--scs-border-radius);
}

.scs-instructor-card img {
    border-radius: 50%;
    width: 64px;
    height: 64px;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: var(--scs-shadow);
}

.scs-instructor-info strong {
    display: block;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--scs-gray-900);
}

.scs-instructor-info p {
    margin: 0.375rem 0 0 0;
    font-size: 0.875rem;
    color: var(--scs-gray-500);
}

.scs-location-info {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--scs-gray-50);
    border-radius: var(--scs-border-radius);
}

.scs-location-icon {
    width: 48px;
    height: 48px;
    background: var(--scs-theme-gradient);
    border-radius: var(--scs-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.scs-location-details strong {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--scs-gray-900);
}

.scs-location-details p {
    margin: 0.25rem 0 0 0;
    font-size: 0.875rem;
    color: var(--scs-gray-500);
}

/* Signup Card - Sticky Sidebar */
.scs-signup-card {
    background: white;
    border: 2px solid var(--scs-gray-200);
    border-radius: var(--scs-border-radius-xl);
    padding: 2rem;
    position: sticky;
    top: 2rem;
    box-shadow: var(--scs-shadow-lg);
}

.scs-spots-info {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--scs-gray-200);
}

.scs-spots-count {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--scs-success);
    line-height: 1;
}

.scs-spots-total {
    display: block;
    font-size: 0.875rem;
    color: var(--scs-gray-500);
    margin-top: 0.5rem;
}

.scs-status-past,
.scs-status-cancelled {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    color: var(--scs-gray-500);
    padding: 1rem;
    background: var(--scs-gray-100);
    border-radius: var(--scs-border-radius);
}

.scs-status-full {
    color: var(--scs-danger);
    background: rgba(239, 68, 68, 0.1);
}

.scs-booked-message {
    background: var(--scs-success);
    color: white;
    padding: 1rem 1.25rem;
    border-radius: var(--scs-border-radius);
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.scs-booked-icon {
    font-size: 1.25rem;
}

.scs-signup-action {
    margin-bottom: 1.25rem;
}

.scs-signup-action .scs-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1rem;
}

.scs-class-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--scs-gray-200);
}

.scs-tag {
    background: var(--scs-theme-accent);
    color: var(--scs-theme-primary);
    padding: 0.375rem 0.875rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.scs-price-info {
    text-align: center;
    padding: 1rem;
    background: var(--scs-gray-50);
    border-radius: var(--scs-border-radius);
    margin-bottom: 1.25rem;
}

.scs-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--scs-gray-900);
}

.scs-price-label {
    font-size: 0.8125rem;
    color: var(--scs-gray-500);
}

/* ==========================================================================
   Empty & Loading States
   ========================================================================== */
.scs-schedule-empty {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: var(--scs-border-radius-xl);
    border: 2px dashed var(--scs-gray-300);
}

.scs-schedule-empty p {
    color: var(--scs-gray-500);
    font-size: 1rem;
    margin: 0;
}

.scs-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

.scs-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--scs-gray-200);
    border-top-color: var(--scs-theme-primary);
    border-radius: 50%;
    animation: scs-spin 1s linear infinite;
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .scs-class-signup-content {
        grid-template-columns: 1fr;
    }

    .scs-signup-card {
        position: static;
    }

    .scs-classes-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .scs-schedule-wrapper {
        padding: 1rem;
    }

    .scs-schedule-header {
        padding: 1.25rem;
        flex-direction: column;
        text-align: center;
    }

    .scs-view-week .scs-schedule-grid {
        grid-template-columns: 1fr;
    }

    .scs-class-signup-header {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }

    .scs-class-date-badge {
        align-self: center;
    }

    .scs-class-signup-title h1 {
        font-size: 1.5rem;
    }

    .scs-class-time-info {
        justify-content: center;
        flex-wrap: wrap;
    }

    .scs-customer-portal {
        padding: 1rem;
    }

    .scs-portal-profile {
        flex-direction: column;
        text-align: center;
    }

    .scs-class-item {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .scs-portal-section {
        padding: 1.25rem;
    }

    .scs-class-signup-main > div {
        padding: 1.25rem;
    }

    .scs-signup-card {
        padding: 1.5rem;
    }

    .scs-classes-grid {
        grid-template-columns: 1fr;
    }

    .scs-class-card-modern {
        margin: 0 -0.5rem;
        border-radius: var(--scs-border-radius);
    }
}