/**
 * Main stylesheet for WordPress Water Treatment Theme
 * 
 * @package WordPress_Water
 */

/* ========================================
   CSS Custom Properties (Variables)
   ======================================== */
:root {
    /* Colors */
    --color-primary: #22c55e;
    --color-primary-hover: #16a34a;
    --color-secondary: #ffffff;
    --color-dark: #1a1a1a;
    --color-gray: #6b7280;
    --color-light-gray: #f3f4f6;
    --color-border: #e5e7eb;
    --color-text: #1f2937;
    --color-header-bg: #1a1a1a;
    
    /* Badge Colors */
    --color-badge-available: #22c55e;
    --color-badge-coming-soon: #1a1a1a;
    --color-badge-coming-late: #9ca3af;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 50px;
    
    /* 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);
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

html {
    font-size: var(--font-size-base);
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--spacing-sm);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

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

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

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

/* ========================================
   Layout Components
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.site-content {
    flex: 1;
}

/* Screen Reader Text */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.screen-reader-text:focus {
    position: static;
    width: auto;
    height: auto;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    background-color: var(--color-dark);
    color: #ffffff;
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    background-color: var(--color-header-bg);
    color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 70px;
}

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

.site-branding a {
    display: flex;
    align-items: center;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
}

.site-title:hover {
    color: var(--color-primary);
}

.custom-logo-link {
    display: block;
    line-height: 0;
}

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

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.menu-toggle-icon {
    width: 100%;
    height: 3px;
    background-color: #ffffff;
    transition: var(--transition-base);
    border-radius: 2px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle[aria-expanded="true"] .menu-toggle-icon:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Primary Menu Container */
.primary-menu-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.primary-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-md);
}

.primary-menu li {
    position: relative;
}

.primary-menu > li > a {
    color: #ffffff;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    display: block;
    transition: var(--transition-fast);
}

.primary-menu > li > a:hover {
    color: var(--color-primary);
}

/* Dropdown Menus */
.primary-menu .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-dark);
    min-width: 200px;
    list-style: none;
    margin: 0;
    padding: var(--spacing-xs) 0;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
}

.primary-menu li:hover > .sub-menu,
.primary-menu li:focus-within > .sub-menu {
    display: block;
}

.primary-menu .sub-menu li a {
    color: #ffffff;
    padding: var(--spacing-xs) var(--spacing-sm);
    display: block;
    transition: var(--transition-fast);
}

.primary-menu .sub-menu li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

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

.btn-store {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
    padding: 0.625rem 1.5rem;
    font-size: 0.9375rem;
}

.btn-store:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #ffffff;
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: var(--color-dark);
    color: #ffffff;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Products Section
   ======================================== */
.products-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.product-card {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    height: 100%;
}

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

.product-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.product-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 Aspect Ratio */
    overflow: hidden;
    background-color: var(--color-light-gray);
}

.product-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.placeholder-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    opacity: 0.3;
}

.product-card-content {
    padding: var(--spacing-md);
}

.product-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.product-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.badge-available {
    background-color: var(--color-badge-available);
    color: #ffffff;
}

.badge-coming-soon {
    background-color: var(--color-badge-coming-soon);
    color: #ffffff;
}

.badge-coming-late {
    background-color: transparent;
    color: var(--color-badge-coming-late);
    border: 2px solid var(--color-badge-coming-late);
}

.product-description {
    color: var(--color-gray);
    font-size: 0.9375rem;
    margin: 0;
}

.products-footer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.products-link {
    color: var(--color-dark);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.products-link:hover {
    color: var(--color-primary);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background-color: var(--color-dark);
    color: #ffffff;
    padding-top: var(--spacing-xl);
}

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

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

.footer-widget .widget-title {
    color: #ffffff;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

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

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

.footer-widget a {
    color: rgba(255, 255, 255, 0.8);
}

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

.site-info {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.site-info p {
    margin: 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

/* ========================================
   Page Content Styles
   ======================================== */
.site-main {
    padding: var(--spacing-xl) 0;
}

.entry-header {
    margin-bottom: var(--spacing-md);
}

.entry-title {
    margin-bottom: var(--spacing-sm);
}

.entry-meta {
    color: var(--color-gray);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.entry-meta > * {
    margin-right: var(--spacing-sm);
}

.post-thumbnail {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.entry-content {
    line-height: 1.8;
}

.entry-content > *:last-child {
    margin-bottom: 0;
}

.page-content-section {
    padding: var(--spacing-xl) 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    /* Mobile Menu */
    .menu-toggle {
        display: flex;
    }
    
    .primary-menu-container {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--color-dark);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px var(--spacing-md) var(--spacing-md);
        transition: right 0.3s ease;
        overflow-y: auto;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
    }
    
    .primary-menu-container.active {
        right: 0;
    }
    
    .primary-menu {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .primary-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .primary-menu > li > a {
        padding: var(--spacing-sm);
    }
    
    .primary-menu .sub-menu {
        position: static;
        box-shadow: none;
        background-color: rgba(255, 255, 255, 0.05);
        border-radius: 0;
        padding-left: var(--spacing-sm);
    }
    
    .btn-store {
        width: 100%;
        margin-top: var(--spacing-sm);
    }
    
    /* Hero */
    .hero-section {
        min-height: 500px;
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Products */
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.375rem; }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
}

/* ========================================
   Accessibility Enhancements
   ======================================== */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .site-header,
    .site-footer,
    .menu-toggle,
    .btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}