/*
 * Martial Arts Center Pro - Main Stylesheet
 * Version: 1.0.0
 */

/* ==========================================================================
   CSS CUSTOM PROPERTIES (CSS VARIABLES)
   ========================================================================== */

:root {
    /* Colors */
    --primary-red: #E31E24;
    --primary-black: #1A1A1A;
    --accent-yellow: #FFD700;
    --text-dark: #2C2C2C;
    --text-light: #FFFFFF;
    --background-light: #F8F8F8;
    --background-dark: #2C2C2C;
    --border-color: #E5E5E5;
    --success: #28A745;
    --warning: #FFC107;
    --error: #DC3545;
    
    /* Typography */
    --font-primary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-headings: 'Montserrat', 'Roboto', sans-serif;
    --font-accent: 'Oswald', 'Arial Black', sans-serif;
    
    /* Font Sizes (Responsive with clamp()) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.5rem);
    --text-xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
    --text-2xl: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
    --text-3xl: clamp(2.5rem, 2rem + 2.5vw, 4.5rem);
    
    /* Spacing */
    --spacing-xs: 0.5rem;   /* 8px */
    --spacing-sm: 1rem;     /* 16px */
    --spacing-md: 1.5rem;   /* 24px */
    --spacing-lg: 2rem;     /* 32px */
    --spacing-xl: 3rem;     /* 48px */
    --spacing-2xl: 4rem;    /* 64px */
    --spacing-3xl: 6rem;    /* 96px */
    
    /* Breakpoints */
    --mobile: 320px;
    --tablet: 768px;
    --desktop: 1024px;
    --wide: 1280px;
    --ultra-wide: 1920px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--text-light);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-dark);
}

h1 {
    font-size: var(--text-3xl);
    font-weight: 800;
}

h2 {
    font-size: var(--text-2xl);
}

h3 {
    font-size: var(--text-xl);
}

h4 {
    font-size: var(--text-lg);
}

h5 {
    font-size: var(--text-base);
}

h6 {
    font-size: var(--text-sm);
}

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

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

a:hover,
a:focus {
    color: var(--primary-black);
    text-decoration: underline;
}

strong, b {
    font-weight: 700;
}

em, i {
    font-style: italic;
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-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-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-headings);
    font-size: var(--text-base);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    line-height: 1.4;
    min-width: 120px;
}

.btn:hover,
.btn:focus {
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background-color: var(--primary-red);
    color: var(--text-light);
    border-color: var(--primary-red);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-black);
    border-color: var(--primary-black);
    color: var(--text-light);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-red);
    border-color: var(--primary-red);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--primary-red);
    color: var(--text-light);
}

.btn-hero {
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    border-color: var(--accent-yellow);
    font-size: var(--text-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 700;
}

.btn-hero:hover,
.btn-hero:focus {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
    color: var(--text-light);
}

.btn-cta {
    background-color: var(--primary-black);
    color: var(--text-light);
    border-color: var(--primary-black);
    font-size: var(--text-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 700;
}

.btn-cta:hover,
.btn-cta:focus {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
    color: var(--text-light);
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
    background-color: var(--text-light);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--primary-black);
    color: var(--text-light);
    padding: var(--spacing-xs) 0;
    font-size: var(--text-sm);
}

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

.header-contact a {
    color: var(--text-light);
    margin-right: var(--spacing-md);
    text-decoration: none;
}

.header-contact a:hover {
    color: var(--accent-yellow);
}

.header-social a {
    color: var(--text-light);
    margin-left: var(--spacing-sm);
    font-size: var(--text-lg);
    transition: color var(--transition-fast);
}

.header-social a:hover {
    color: var(--accent-yellow);
}

.header-main {
    padding: var(--spacing-md) 0;
}

.header-main-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.site-branding {
    flex-shrink: 0;
}

.site-title {
    font-family: var(--font-accent);
    font-size: var(--text-2xl);
    font-weight: 700;
    margin: 0;
    color: var(--primary-black);
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.site-description {
    font-size: var(--text-sm);
    color: var(--text-dark);
    margin: 0;
    opacity: 0.8;
}

.custom-logo-link {
    display: block;
    max-width: 200px;
}

.custom-logo {
    height: auto;
    max-height: 60px;
    width: auto;
}

/* Navigation */
.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg);
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    font-family: var(--font-headings);
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
    padding: var(--spacing-sm) 0;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a:focus,
.nav-menu .current-menu-item > a {
    color: var(--primary-red);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-red);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after,
.nav-menu .current-menu-item > a::after {
    width: 100%;
}

/* Dropdown Menus */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--text-light);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.nav-menu li:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu li {
    width: 100%;
}

.nav-menu .sub-menu a {
    display: block;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.nav-menu .sub-menu a:hover {
    background-color: var(--background-light);
}

/* Header CTA */
.header-cta {
    flex-shrink: 0;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    flex-direction: column;
    gap: 4px;
}

.menu-toggle-icon {
    width: 24px;
    height: 3px;
    background-color: var(--text-dark);
    transition: all var(--transition-normal);
}

.menu-toggle-icon::before,
.menu-toggle-icon::after {
    content: '';
    display: block;
    width: 24px;
    height: 3px;
    background-color: var(--text-dark);
    transition: all var(--transition-normal);
}

.menu-toggle-icon::before {
    transform: translateY(-8px);
}

.menu-toggle-icon::after {
    transform: translateY(5px);
}

/* Mobile Navigation */
.mobile-navigation {
    display: none;
    background-color: var(--text-light);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.mobile-nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-menu li {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-menu a {
    display: block;
    padding: var(--spacing-md);
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
}

.mobile-nav-menu a:hover {
    background-color: var(--background-light);
    color: var(--primary-red);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    background-color: var(--primary-black);
    color: var(--text-light);
    overflow: hidden;
}

.hero-content {
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.8) 0%, rgba(227, 30, 36, 0.6) 100%);
    z-index: 1;
}

.hero-text {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-accent);
    font-size: var(--text-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   SECTIONS
   ========================================================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-family: var(--font-accent);
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-black);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red) 0%, var(--accent-yellow) 100%);
    margin: 0 auto;
    border-radius: var(--radius-sm);
}

/* Welcome Section */
.welcome-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--text-light);
}

.welcome-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: var(--text-lg);
    line-height: 1.8;
}

/* Programmes Section */
.programmes-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-light);
}

.programmes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.programme-card {
    background-color: var(--text-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.programme-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.programme-image {
    position: relative;
    overflow: hidden;
}

.programme-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.programme-card:hover .programme-image img {
    transform: scale(1.05);
}

.programme-content {
    padding: var(--spacing-lg);
}

.programme-title {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-md);
}

.programme-title a {
    color: var(--text-dark);
    text-decoration: none;
}

.programme-title a:hover {
    color: var(--primary-red);
}

.programme-excerpt {
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    opacity: 0.8;
}

/* Trainers Section */
.trainers-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--text-light);
}

.trainers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.trainer-card {
    text-align: center;
    background-color: var(--text-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.trainer-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.trainer-image {
    margin-bottom: var(--spacing-lg);
}

.trainer-image img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-red);
    transition: border-color var(--transition-normal);
}

.trainer-card:hover .trainer-image img {
    border-color: var(--accent-yellow);
}

.trainer-name {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.trainer-role {
    color: var(--primary-red);
    font-weight: 600;
    margin: 0;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--primary-red) 100%);
    color: var(--text-light);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-accent);
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

.cta-text {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
    background-color: var(--primary-black);
    color: var(--text-light);
    margin-top: auto;
}

.footer-widgets {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-widgets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-widget-title {
    font-family: var(--font-headings);
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--accent-yellow);
}

.footer-widget p,
.footer-widget li {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-widget a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

.footer-widget li {
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    padding: var(--spacing-lg) 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
}

.footer-copyright a {
    color: var(--accent-yellow);
    text-decoration: none;
}

.footer-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg);
}

.footer-navigation a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

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

/* ==========================================================================
   UTILITIES
   ========================================================================== */

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

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

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.hidden {
    display: none;
}

.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;
}