/*
Theme Name:         Ching Mo Martial Arts
Theme URI:          https://www.chingmo.co.uk
Author:             Ching Mo Martial Arts
Author URI:         https://www.chingmo.co.uk
Description:        Custom WordPress theme for Ching Mo Martial Arts.
                    Features Kung Fu, Tai Chi, Wing Chun and Self
                    Defence class pages with full SEO optimisation,
                    security headers and mobile-first responsive design.
Version:            1.0.0
Requires at least:  6.0
Tested up to:       6.4
Requires PHP:       8.0
License:            Private
Text Domain:        chingmo
Tags:               martial-arts, custom-theme, responsive,
                    seo-optimised, mobile-first
*/

/* ============================================
   CHING MO MARTIAL ARTS - Main Stylesheet
   WordPress Theme Version
   ============================================ */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    --color-primary:        #c41e3a;
    --color-primary-dark:   #9a1830;
    --color-primary-light:  rgba(196, 30, 58, 0.08);
    --color-secondary:      #1a1a2e;
    --color-secondary-light:#16213e;
    --color-accent:         #d4af37;
    --color-accent-light:   rgba(212, 175, 55, 0.1);
    --color-white:          #ffffff;
    --color-off-white:      #f8f9fa;
    --color-light-grey:     #e9ecef;
    --color-grey:           #6c757d;
    --color-dark-grey:      #343a40;
    --color-black:          #0a0a0a;
    --font-heading:         'Cinzel', 'Georgia', serif;
    --font-body:            'Inter', -apple-system, BlinkMacSystemFont,
                            'Segoe UI', sans-serif;
    --max-width:            1200px;
    --header-height:        80px;
    --space-xs:             0.25rem;
    --space-sm:             0.5rem;
    --space-md:             1rem;
    --space-lg:             2rem;
    --space-xl:             3rem;
    --space-2xl:            5rem;
    --space-3xl:            8rem;
    --radius-sm:            4px;
    --radius-md:            8px;
    --radius-lg:            16px;
    --radius-full:          50%;
    --shadow-sm:            0 1px 3px rgba(0,0,0,0.12);
    --shadow-md:            0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg:            0 8px 30px rgba(0,0,0,0.2);
    --shadow-xl:            0 20px 60px rgba(0,0,0,0.25);
    --transition-fast:      150ms ease;
    --transition-base:      300ms ease;
    --transition-slow:      500ms ease;
}

/* ===== RESET ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-dark-grey);
    background-color: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover,
a:focus-visible {
    color: var(--color-primary-dark);
}

ul {
    list-style: none;
}

address {
    font-style: normal;
}

/* ===== WORDPRESS CORE FIXES ===== */
.wp-block-image img {
    height: auto;
}

.alignleft {
    float: left;
    margin-right: var(--space-md);
}

.alignright {
    float: right;
    margin-left: var(--space-md);
}

.aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* ===== ACCESSIBILITY ===== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    z-index: 10000;
    font-weight: 600;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-sm);
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

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

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

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

/* ===== HEADER ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    height: var(--header-height);
    transition: background var(--transition-base),
                box-shadow var(--transition-base);
}

.site-header.scrolled {
    background: rgba(26, 26, 46, 0.98);
    box-shadow: var(--shadow-lg);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-logo img {
    height: 45px;
    width: auto;
}

/* ===== NAVIGATION ===== */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: 1001;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 28px;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2.5px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform var(--transition-base),
                opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"]
.hamburger-line:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"]
.hamburger-line:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* WordPress nav menu */
.main-navigation ul {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--color-secondary);
    display: flex;
    flex-direction: column;
    padding: calc(var(--header-height) + var(--space-lg))
             var(--space-lg) var(--space-lg);
    gap: var(--space-xs);
    transition: right var(--transition-base);
    overflow-y: auto;
    list-style: none;
    margin: 0;
}

.main-navigation ul.active {
    right: 0;
}

.main-navigation ul li a {
    display: block;
    color: rgba(255,255,255,0.8);
    font-size: 1.05rem;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    letter-spacing: 0.02em;
    border-left: 3px solid transparent;
}

.main-navigation ul li a:hover,
.main-navigation ul li.current-menu-item > a {
    color: var(--color-white);
    background: rgba(196,30,58,0.2);
    border-left-color: var(--color-primary);
}

.main-navigation ul li.menu-item-cta > a {
    background: var(--color-primary);
    color: var(--color-white);
    text-align: center;
    margin-top: var(--space-md);
    border-radius: var(--radius-md);
    border-left: none;
    font-weight: 600;
}

.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

@media (min-width: 992px) {
    .nav-toggle {
        display: none;
    }

    .main-navigation ul {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        flex-direction: row;
        padding: 0;
        gap: var(--space-xs);
        align-items: center;
    }

    .main-navigation ul li a {
        font-size: 0.92rem;
        padding: var(--space-sm) var(--space-md);
        border-left: none;
        position: relative;
    }

    .main-navigation ul li a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        width: 0;
        height: 2px;
        background: var(--color-accent);
        transition: all var(--transition-base);
        transform: translateX(-50%);
    }

    .main-navigation ul li a:hover::after,
    .main-navigation ul li.current-menu-item > a::after {
        width: 60%;
    }

    .main-navigation ul li.current-menu-item > a {
        background: transparent;
        border-left: none;
    }

    .main-navigation ul li.menu-item-cta > a {
        margin-top: 0;
        padding: var(--space-sm) var(--space-lg);
    }

    .main-navigation ul li.menu-item-cta > a::after {
        display: none;
    }
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    text-align: center;
    padding: calc(var(--header-height) + var(--space-xl))
             var(--space-md) var(--space-xl);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26,26,46,0.88) 0%,
        rgba(196,30,58,0.3) 50%,
        rgba(26,26,46,0.85) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-subtitle {
    display: block;
    font-family: var(--font-body);
    font-size: clamp(0.85rem, 2vw, 1.1rem);
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    text-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    line-height: 1.8;
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.85rem 2rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(196,30,58,0.35);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255,255,255,0.4);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--color-white);
    color: var(--color-white);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-white);
    border-color: transparent;
}

.btn-ghost:hover {
    color: var(--color-accent);
}

.btn-lg {
    padding: 1.1rem 2.5rem;
    font-size: 1.05rem;
}

.btn-icon {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(3px);
}

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

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

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

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--color-primary),
        var(--color-accent)
    );
    margin: 0 auto var(--space-md);
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-grey);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== PAGE HERO ===== */
.page-hero {
    position: relative;
    min-height: 380px;
    display: flex;
    align-items: flex-end;
    padding-bottom: var(--space-2xl);
    margin-top: var(--header-height);
}

.page-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(26,26,46,0.6) 0%,
        rgba(26,26,46,0.92) 100%
    );
    z-index: 1;
}

.page-hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
}

.page-hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

.page-hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,0.85);
    max-width: 600px;
    line-height: 1.7;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
    margin-bottom: var(--space-md);
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-xs);
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
}

.breadcrumb a {
    color: rgba(255,255,255,0.6);
    transition: color var(--transition-fast);
}

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

.breadcrumb-sep {
    color: rgba(255,255,255,0.3);
}

.breadcrumb [aria-current="page"] {
    color: var(--color-accent);
    font-weight: 500;
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: linear-gradient(
        135deg,
        var(--color-primary),
        var(--color-primary-dark)
    );
    color: var(--color-white);
    text-align: center;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.cta-content p {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: var(--space-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

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

.cta-section .btn-primary:hover {
    background: var(--color-accent);
    color: var(--color-secondary);
    border-color: var(--color-accent);
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--color-black);
    color: rgba(255,255,255,0.7);
    padding: var(--space-2xl) 0 var(--space-lg);
}

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

@media (min-width: 576px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }
}

.footer-about img {
    margin-bottom: var(--space-md);
}

.footer-about p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

.footer-links h3,
.footer-classes h3,
.footer-contact h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.footer-links ul,
.footer-classes ul {
    display: grid;
    gap: var(--space-sm);
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links a,
.footer-classes a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.footer-links a:hover,
.footer-classes a:hover {
    color: var(--color-white);
    padding-left: var(--space-xs);
}

.footer-contact address p {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
}

.footer-contact a {
    color: rgba(255,255,255,0.6);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: var(--space-lg);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.85rem;
}

.footer-bottom nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-bottom nav a {
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

.footer-bottom nav a:hover {
    color: var(--color-white);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 900;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
}

/* ===== ANIMATIONS ===== */
@media (prefers-reduced-motion: no-preference) {
    .fade-in {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}