/* Base CSS - Brighton Dance Centre */

/* CSS Reset / Normalize */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: #00CED1;
    color: white;
    border-color: #00CED1;
}

.btn-primary:hover {
    background: #00B5B8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: white;
    color: #00CED1;
    border-color: #00CED1;
}

.btn-secondary:hover {
    background: #00CED1;
    color: white;
}

/* Root Variables */
:root {
    /* Brand Colors - Brighton Theme */
    --primary-color: #00CED1; /* Seafoam Green - Brighton seaside */
    --secondary-color: #FF6B6B; /* Sunset Orange - Brighton Pier sunset */
    --accent-color: #6B5B95; /* Deep Purple - Brighton's artistic vibe */
    
    /* Neutral Colors */
    --text-dark: #2D2D2D;
    --text-light: #666666;
    --bg-light: #FAFAFA;
    --white: #FFFFFF;
    --black: #000000;
    
    /* Additional Colors for Shapes */
    --shape-yellow: #FFD93D;
    --shape-pink: #FF6B9D;
    --shape-blue: #4ECDC4;
    
    /* Typography */
    --font-heading: 'Bebas Neue', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --font-accent: 'Dancing Script', cursive;
    
    /* Font Sizes */
    --fs-xl: clamp(2.5rem, 5vw, 4rem);
    --fs-lg: clamp(1.75rem, 3vw, 2.5rem);
    --fs-md: clamp(1.25rem, 2vw, 1.5rem);
    --fs-base: 1rem;
    --fs-sm: 0.875rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 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 20px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-shapes: -1;
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
}

/* Base Styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: 0.02em;
}

h1 {
    font-size: var(--fs-xl);
}

h2 {
    font-size: var(--fs-lg);
}

h3 {
    font-size: var(--fs-md);
}

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

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

a:hover {
    color: var(--secondary-color);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-family: var(--font-body);
    font-size: var(--fs-base);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 206, 209, 0.3);
}

.btn-primary:hover {
    background-color: #00B5B8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 206, 209, 0.4);
    color: var(--white);
}

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

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

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

.btn-accent:hover {
    background-color: #FF5252;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.py-1 { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-2 { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-3 { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-4 { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
.py-5 { padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }
.py-6 { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

/* Section Spacing */
section {
    padding: var(--space-3xl) 0;
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: var(--fs-base);
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-md);
    background-color: var(--white);
    transition: border-color var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* Lists */
ul, ol {
    list-style: none;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip to content */
.skip-to-content {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1rem 1.5rem;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}

.skip-to-content:focus {
    left: 50%;
    transform: translateX(-50%);
    top: 1rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Responsive Typography */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
}