/**
 * Dedikated Ballet School - Stylesheet
 * Modern CSS with custom properties, Grid, and Flexbox
 * Mobile-first responsive design
 */

/* ========================================
   CSS Custom Properties (Variables)
   ======================================== */
:root {
    /* Colors - can be adjusted to match branding */
    --color-primary: #7b4397;
    --color-primary-dark: #5c3271;
    --color-primary-light: #9a6db3;
    --color-secondary: #dc5a8c;
    --color-accent: #e8a4c4;

    --color-text: #333;
    --color-text-light: #666;
    --color-text-muted: #888;

    --color-bg: #fff;
    --color-bg-alt: #f8f6fa;
    --color-bg-dark: #2d2d2d;

    --color-border: #e0d8e6;
    --color-border-light: #f0ecf4;

    /* Typography */
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: Georgia, 'Times New Roman', serif;

    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;

    --line-height: 1.6;
    --line-height-tight: 1.3;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: var(--line-height-tight);
    margin: 0 0 var(--space-md);
    color: var(--color-primary-dark);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

p {
    margin: 0 0 var(--space-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    margin: 0 0 var(--space-md);
    padding-left: var(--space-lg);
}

/* ========================================
   Layout
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--space-2xl) 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    background: #000;
    border-bottom: none;
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-sm);
    padding-bottom: var(--space-sm);
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
}

/* Mobile navigation toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle-bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #fff;
    border-radius: 2px;
    transition: var(--transition-normal);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Navigation list */
.main-nav {
    display: none;
}

.main-nav.is-open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #000;
    border-bottom: none;
    box-shadow: var(--shadow-lg);
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: var(--space-md);
}

.nav-list li {
    margin: 0;
}

.nav-list > li > a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    color: #fff;
    font-weight: 500;
}

.nav-list > li > a:hover,
.nav-list > li.active > a {
    color: var(--color-accent);
    text-decoration: none;
}

/* Dropdown menus (mobile: nested list) */
.nav-dropdown-menu {
    list-style: none;
    padding: 0 0 0 var(--space-lg);
    margin: 0;
}

.nav-dropdown-menu a {
    display: block;
    padding: var(--space-xs) var(--space-md);
    color: #ccc;
    font-size: var(--font-size-sm);
}

.nav-dropdown-menu a:hover {
    color: #fff;
}

/* Desktop navigation */
@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }

    .main-nav {
        display: block;
        position: static;
        background: none;
        border: none;
        box-shadow: none;
    }

    .nav-list {
        display: flex;
        align-items: center;
        gap: var(--space-xs);
        padding: 0;
    }

    .nav-list > li {
        position: relative;
    }

    .nav-list > li > a {
        padding: var(--space-sm) var(--space-md);
        border-radius: var(--radius-sm);
    }

    .nav-list > li > a:hover {
        background-color: rgba(255, 255, 255, 0.1);
    }

    /* Desktop dropdowns */
    .nav-dropdown-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 180px;
        background: #000;
        border: 1px solid #333;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-lg);
        padding: var(--space-sm) 0;
    }

    .nav-dropdown:hover .nav-dropdown-menu {
        display: block;
    }

    .nav-dropdown-menu a {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-base);
        color: #ccc;
    }

    .nav-dropdown-menu a:hover {
        background-color: rgba(255, 255, 255, 0.1);
        color: #fff;
        text-decoration: none;
    }
}

/* ========================================
   Main Content
   ======================================== */
.site-main {
    min-height: 60vh;
}

.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--space-2xl) 0;
    text-align: center;
}

.page-header h1 {
    color: white;
    margin-bottom: var(--space-sm);
}

.page-header p {
    opacity: 0.9;
    margin: 0;
    font-size: var(--font-size-lg);
}

/* ========================================
   Homepage Hero
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    padding: var(--space-3xl) 0;
    text-align: center;
}

.hero h1 {
    color: white;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-md);
}

.hero p {
    font-size: var(--font-size-lg);
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto var(--space-lg);
}

@media (min-width: 768px) {
    .hero {
        padding: var(--space-3xl) 0 var(--space-3xl);
    }

    .hero h1 {
        font-size: var(--font-size-4xl);
    }
}

/* ========================================
   Audience Cards (Children/Adults split)
   ======================================== */
.audience-cards {
    display: grid;
    gap: var(--space-lg);
    padding: var(--space-2xl) 0;
}

@media (min-width: 640px) {
    .audience-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }
}

@media (min-width: 1024px) {
    .audience-cards {
        gap: var(--space-xl);
    }
}

.audience-card {
    display: block;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.audience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: inherit;
}

.audience-card h2 {
    color: var(--color-primary-dark);
}

.audience-card:hover h2 {
    color: var(--color-primary);
}

.audience-card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.audience-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.audience-card-content {
    padding: var(--space-lg);
}

.audience-card h2 {
    margin-bottom: var(--space-sm);
}

.audience-card p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.audience-card:hover .btn {
    background-color: var(--color-primary-dark);
}

/* Silver Swans featured card - subtle distinction */
.audience-card-featured {
    border-top: 3px solid var(--color-accent);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--color-bg-alt);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-lg);
}

/* ========================================
   Timetable
   ======================================== */
.timetable-grid {
    display: grid;
    gap: var(--space-lg);
}

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

@media (min-width: 1024px) {
    .timetable-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.timetable-day {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.timetable-day-header {
    background: var(--color-primary);
    color: white;
    padding: var(--space-sm) var(--space-md);
    font-weight: 600;
    text-transform: capitalize;
}

.timetable-classes {
    padding: var(--space-sm);
}

.timetable-class {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.timetable-class:last-child {
    border-bottom: none;
}

.timetable-class-time {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.timetable-class-name {
    font-weight: 500;
}

.timetable-class-location {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.timetable-class.adult-class {
    background-color: var(--color-bg-alt);
    border-left: 3px solid var(--color-secondary);
    margin: var(--space-xs) 0;
    border-radius: var(--radius-sm);
}

.timetable-class.silver-swans-class {
    background-color: #f0f7f7;
    border-left: 3px solid #5a9a9a;
    margin: var(--space-xs) 0;
    border-radius: var(--radius-sm);
}

/* Timetable legend */
.legend-item {
    display: inline-flex;
    align-items: center;
    margin-right: var(--space-lg);
}

.legend-swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: var(--space-sm);
    border-radius: 2px;
}

.legend-adult {
    background-color: var(--color-bg-alt);
    border-left: 3px solid var(--color-secondary);
}

.legend-silver-swans {
    background-color: #f0f7f7;
    border-left: 3px solid #5a9a9a;
}

/* ========================================
   Term Dates
   ======================================== */
.term-info {
    background: var(--color-bg-alt);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
}

.term-info h3 {
    margin-bottom: var(--space-sm);
}

.term-dates-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.term-dates-list li {
    padding: var(--space-xs) 0;
}

.term-dates-list strong {
    color: var(--color-primary-dark);
}

/* ========================================
   Content Sections
   ======================================== */
.content-section {
    padding: var(--space-2xl) 0;
}

.content-section h2 {
    margin-bottom: var(--space-lg);
}

.text-content {
    max-width: var(--container-narrow);
}

.text-content p {
    margin-bottom: var(--space-md);
}

/* Feature list */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background: var(--color-bg-dark);
    color: #ccc;
    padding: var(--space-2xl) 0 var(--space-lg);
}

.site-footer a {
    color: #fff;
}

.site-footer a:hover {
    color: var(--color-accent);
}

.site-footer h3 {
    color: white;
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
}

.footer-content {
    display: grid;
    gap: var(--space-xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-section p {
    margin-bottom: var(--space-sm);
    color: #aaa;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-badges {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.badge-img {
    height: 60px;
    width: auto;
    opacity: 0.9;
}

.badge-img:hover {
    opacity: 1;
}

.footer-bottom {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid #444;
    text-align: center;
    font-size: var(--font-size-sm);
    color: #888;
}

/* ========================================
   Forms
   ======================================== */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(123, 67, 151, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* ========================================
   Utilities
   ======================================== */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}