/*
 * QUARQNET-alfa Main Stylesheet
 *
 * Table of Contents:
 * 1. CSS Custom Properties
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout & Containers
 * 5. Header & Navigation
 * 6. Hero Section
 * 7. Course Cards
 * 8. About Section
 * 9. Success Stories
 * 10. Content & Pages
 * 11. Sidebar & Widgets
 * 12. Footer
 * 13. Buttons
 * 14. Forms
 * 15. Plugin Compatibility (QTR, Ninja Forms)
 * 16. Utility Classes
 * 17. Responsive Design
 */

/* ========================================
   1. CSS Custom Properties
   ======================================== */
:root {
    /* Colors */
    --color-primary: #F97316;
    --color-primary-hover: #EA580C;
    --color-primary-light: rgba(249, 115, 22, 0.1);
    --color-secondary: #0D4F6B;
    --color-secondary-light: #1A6B8A;
    --color-secondary-dark: #083A4F;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-text-muted: #9CA3AF;
    --color-background: #FFFFFF;
    --color-background-alt: #F8FAFC;
    --color-background-dark: #0D4F6B;
    --color-border: #E5E7EB;
    --color-hero-overlay: rgba(13, 79, 107, 0.75);
    --color-card-overlay: rgba(13, 79, 107, 0.85);
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --font-family-heading: var(--font-family-base);
    --font-size-base: 16px;
    --font-size-small: 0.875rem;
    --font-size-large: 1.125rem;
    --font-size-h1: 2.5rem;
    --font-size-h2: 2rem;
    --font-size-h3: 1.5rem;
    --font-size-h4: 1.25rem;
    --font-size-hero: 3rem;
    --line-height-base: 1.6;
    --line-height-heading: 1.2;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
    --header-height: 80px;
    --sidebar-width: 300px;

    /* Borders & Shadows */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-full: 50%;
    --box-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --box-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --box-shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

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

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -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 {
    color: var(--color-primary-hover);
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Screen reader text */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: var(--color-background);
    clip: auto !important;
    clip-path: none;
    color: var(--color-text);
    display: block;
    font-size: 1rem;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

.skip-link {
    position: fixed;
    top: -100px;
    left: 0;
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
    color: white;
}

/* ========================================
   3. Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

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

p:last-child {
    margin-bottom: 0;
}

/* ========================================
   4. Layout & Containers
   ======================================== */
.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-main {
    flex: 1;
}

.content-container,
.header-container,
.footer-container,
.hero-container,
.course-cards-container,
.about-container,
.success-stories-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.content-container {
    display: flex;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-3xl);
}

.content-area {
    flex: 1;
    min-width: 0;
}

.no-sidebar .content-container {
    max-width: var(--container-max-width);
}

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

.has-hero .site-header {
    position: fixed;
    width: 100%;
    background-color: transparent;
    box-shadow: none;
    transition: background-color var(--transition-base);
}

.has-hero .site-header.scrolled {
    background-color: var(--color-secondary);
    box-shadow: var(--box-shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

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

.site-title-link {
    display: block;
    color: white;
    text-decoration: none;
}

.site-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: white;
    margin: 0;
}

.site-description {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

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

/* Main Navigation */
.main-navigation {
    display: flex;
    align-items: center;
}

.primary-menu {
    display: flex;
    gap: var(--spacing-xs);
}

.primary-menu li {
    position: relative;
}

.primary-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: white;
    font-weight: var(--font-weight-medium);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.primary-menu a:hover,
.primary-menu .current-menu-item > a {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Dropdown menus */
.primary-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--color-secondary);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

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

.primary-menu .sub-menu a {
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
}

.hamburger-icon {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: white;
    transition: transform var(--transition-fast);
}

/* ========================================
   6. Hero Section
   ======================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: var(--color-secondary);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-hero-overlay);
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.hero-headline {
    font-size: var(--font-size-hero);
    font-weight: var(--font-weight-bold);
    color: white;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subheadline {
    font-size: var(--font-size-large);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

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

.btn-hero {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-large);
}

/* ========================================
   7. Course Cards
   ======================================== */
.course-cards-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-alt);
}

.course-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: start;
}

.course-card {
    position: relative;
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

img.card-background {
    display: block;
    width: 100%;
    height: auto;
}

.course-card .card-overlay {
    position: absolute;
    top: 45%;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, var(--color-card-overlay) 60%, transparent 100%);
}

.course-card.no-background {
    text-align: center;
    padding: var(--spacing-xl);
}

.course-card .card-icon {
    margin-bottom: var(--spacing-lg);
}

.course-card .card-icon-svg {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
}

/* --- Cards WITH background image --- */
.course-card.has-background .card-content {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    color: white;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.course-card.has-background .card-title {
    color: white;
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
}

.course-card.has-background .card-description {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-sm);
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.course-card.has-background .btn-card {
    background-color: var(--color-primary);
    color: white;
    display: inline-block;
    flex-shrink: 0;
    align-self: flex-start;
}

/* --- Cards WITHOUT background image --- */
.course-card.no-background .card-content {
    position: relative;
    z-index: 1;
    padding: var(--spacing-xl);
}

.course-card.no-background .card-title {
    color: var(--color-secondary);
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-sm);
}

.course-card.no-background .card-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.btn-card {
    display: inline-block;
}

/* ========================================
   8. About Section
   ======================================== */
.about-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-photo-wrapper {
    position: relative;
}

.about-photo-frame {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
    border-radius: var(--border-radius-full);
    overflow: hidden;
    box-shadow: var(--box-shadow-lg);
}

.about-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-photo-accent {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 20px;
    left: 20px;
    border: 4px solid var(--color-primary);
    border-radius: var(--border-radius-full);
    z-index: -1;
}

.about-content.full-width {
    text-align: center;
}

.about-heading {
    font-size: var(--font-size-h2);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-lg);
}

.about-text {
    color: var(--color-text);
    font-size: var(--font-size-large);
    line-height: 1.8;
}

.btn-about {
    margin-top: var(--spacing-xl);
}

/* ========================================
   9. Success Stories
   ======================================== */
.success-stories-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-alt);
}

.success-stories-section .section-heading {
    text-align: center;
    font-size: var(--font-size-h2);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-3xl);
}

.testimonials-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.testimonials-grid.testimonials-count-1,
.testimonials-grid.testimonials-count-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    max-width: 800px;
    margin: 0 auto;
}

.testimonials-grid.testimonials-count-3,
.testimonials-grid.testimonials-count-4 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.testimonial-card {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-md);
}

.testimonial-quote {
    position: relative;
    margin: 0 0 var(--spacing-lg);
    padding: 0;
    font-size: 1rem;
    font-style: italic;
    color: var(--color-text);
    line-height: 1.7;
}

.quote-mark {
    font-size: 3rem;
    color: var(--color-primary);
    line-height: 0;
    vertical-align: text-top;
    margin-right: var(--spacing-xs);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-photo {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-full);
    overflow: hidden;
    flex-shrink: 0;
}

.testimonial-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-secondary);
}

/* ========================================
   10. Content & Pages
   ======================================== */
.page-header {
    margin-bottom: var(--spacing-2xl);
}

.page-title,
.entry-title {
    font-size: var(--font-size-h1);
    color: var(--color-secondary);
}

.entry-title a {
    color: inherit;
}

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

.entry-meta {
    color: var(--color-text-light);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-lg);
}

.entry-meta a {
    color: var(--color-text-light);
}

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

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

.entry-content {
    font-size: 1rem;
    line-height: 1.8;
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
    margin-top: var(--spacing-2xl);
}

.entry-content ul,
.entry-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
    list-style: revert;
}

.entry-content blockquote {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-background-alt);
    font-style: italic;
}

.entry-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: var(--font-size-small);
}

.entry-footer span {
    margin-right: var(--spacing-lg);
}

.read-more-link {
    display: inline-block;
    font-weight: var(--font-weight-semibold);
}

/* Post Navigation */
.post-navigation {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.nav-links {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.nav-subtitle {
    display: block;
    color: var(--color-text-light);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-xs);
}

.nav-title {
    font-weight: var(--font-weight-semibold);
}

/* Pagination */
.pagination,
.navigation.pagination {
    margin-top: var(--spacing-2xl);
}

.pagination .nav-links,
.navigation.pagination .nav-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* 404 Page */
.error-404 {
    text-align: center;
    padding: var(--spacing-4xl) 0;
}

.error-404 .search-form {
    max-width: 400px;
    margin: var(--spacing-xl) auto;
}

.error-404-widgets {
    margin: var(--spacing-2xl) 0;
    text-align: left;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.error-404-widgets ul {
    list-style: disc;
    padding-left: var(--spacing-xl);
}

/* Front page content */
.front-page-content {
    padding: var(--spacing-4xl) 0;
}

/* Archive header */
.archive-header {
    margin-bottom: var(--spacing-2xl);
}

.archive-description {
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
}

/* Posts list */
.posts-list article {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--color-border);
}

.posts-list article:last-child {
    border-bottom: none;
}

/* ========================================
   11. Sidebar & Widgets
   ======================================== */
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
}

.widget {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius-md);
}

.widget-title {
    font-size: var(--font-size-h4);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.widget ul {
    list-style: none;
}

.widget li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.widget li:last-child {
    border-bottom: none;
}

.widget a {
    color: var(--color-text);
}

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

/* ========================================
   12. Footer
   ======================================== */
.site-footer {
    background-color: var(--color-secondary-dark);
    color: rgba(255, 255, 255, 0.8);
}

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

.footer-widgets .footer-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.footer-widget-area .widget {
    background: transparent;
    padding: 0;
    margin-bottom: var(--spacing-lg);
}

.footer-widget-area .widget-title {
    color: white;
    border-bottom-color: var(--color-primary);
}

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

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

.footer-widget-area .widget li {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

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

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

.footer-navigation .footer-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-menu a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-small);
}

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

.site-info {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   13. Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.btn-outline {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-outline:hover,
.btn-outline:focus {
    background-color: white;
    color: var(--color-secondary);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--color-secondary-light);
    border-color: var(--color-secondary-light);
    color: white;
}

/* ========================================
   14. Forms
   ======================================== */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="tel"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

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

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

button,
input[type="submit"],
input[type="button"] {
    font-family: inherit;
    cursor: pointer;
}

/* Search form */
.search-form {
    display: flex;
    gap: var(--spacing-sm);
}

.search-form .search-field {
    flex: 1;
}

.search-form .search-submit {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    transition: background-color var(--transition-fast);
}

.search-form .search-submit:hover {
    background-color: var(--color-primary-hover);
}

/* Comments */
.comments-area {
    margin-top: var(--spacing-3xl);
}

.comments-title {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-xl);
}

.comment-list {
    list-style: none;
}

.comment-list .comment {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.comment-list .children {
    margin-left: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.comment-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.comment-author .avatar {
    border-radius: var(--border-radius-full);
}

.comment-author .fn {
    font-weight: var(--font-weight-semibold);
    color: var(--color-secondary);
}

.comment-metadata {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
}

.reply {
    margin-top: var(--spacing-md);
}

.comment-reply-link {
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-semibold);
}

.comment-respond {
    margin-top: var(--spacing-2xl);
}

.comment-form label {
    display: block;
    margin-bottom: var(--spacing-xs);
}

.comment-form input,
.comment-form textarea {
    margin-bottom: var(--spacing-md);
}

.comment-form .form-submit {
    margin-top: var(--spacing-md);
}

.comment-form .submit {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
}

.comment-form .submit:hover {
    background-color: var(--color-primary-hover);
}

/* ========================================
   15. Plugin Compatibility
   ======================================== */

/* QUARQ Tank Registry Plugin */
.qtr-form,
.qtr-listing,
.qtr-tank-details {
    margin: var(--spacing-xl) 0;
}

.qtr-form input[type="text"],
.qtr-form input[type="email"],
.qtr-form input[type="number"],
.qtr-form select,
.qtr-form textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
}

.qtr-form input[type="submit"],
.qtr-form button {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.qtr-form input[type="submit"]:hover,
.qtr-form button:hover {
    background-color: var(--color-primary-hover);
}

.qtr-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
}

.qtr-table th,
.qtr-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.qtr-table th {
    background-color: var(--color-secondary);
    color: white;
    font-weight: var(--font-weight-semibold);
}

.qtr-table tr:hover {
    background-color: var(--color-background-alt);
}

.qtr-message,
.qtr-error,
.qtr-success {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
}

.qtr-success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.qtr-error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

/* Ninja Forms */
.nf-form-cont {
    margin: var(--spacing-xl) 0;
}

.nf-form-content .nf-field-container {
    margin-bottom: var(--spacing-md);
}

.nf-form-content .nf-field-label label {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.nf-form-content input[type="text"],
.nf-form-content input[type="email"],
.nf-form-content input[type="tel"],
.nf-form-content input[type="number"],
.nf-form-content textarea,
.nf-form-content select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.nf-form-content input:focus,
.nf-form-content textarea:focus,
.nf-form-content select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.nf-form-content .submit-wrap input[type="submit"],
.nf-form-content .nf-element.nf-button {
    background-color: var(--color-primary) !important;
    color: white !important;
    border: none !important;
    padding: var(--spacing-sm) var(--spacing-xl) !important;
    border-radius: var(--border-radius-md) !important;
    font-weight: var(--font-weight-semibold) !important;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.nf-form-content .submit-wrap input[type="submit"]:hover,
.nf-form-content .nf-element.nf-button:hover {
    background-color: var(--color-primary-hover) !important;
}

.nf-error-msg,
.nf-form-errors .nf-error-msg {
    color: var(--color-error);
    font-size: var(--font-size-small);
}

.nf-response-msg {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

/* ========================================
   16. Utility Classes
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-xl); }
.mb-2 { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* ========================================
   17. Responsive Design
   ======================================== */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    :root {
        --font-size-hero: 2.5rem;
        --font-size-h1: 2rem;
        --font-size-h2: 1.75rem;
    }

    .course-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .course-cards-grid .course-card:last-child {
        grid-column: span 2;
        max-width: 50%;
        justify-self: center;
    }

    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-photo-wrapper {
        order: -1;
    }

    .footer-widgets .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .sidebar {
        width: 250px;
    }
}

/* Mobile (< 768px) */
@media (max-width: 768px) {
    :root {
        --font-size-hero: 2rem;
        --font-size-h1: 1.75rem;
        --font-size-h2: 1.5rem;
        --font-size-h3: 1.25rem;
        --container-padding: 1rem;
        --header-height: 60px;
    }

    /* Navigation */
    .menu-toggle {
        display: flex;
    }

    .primary-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background-color: var(--color-secondary);
        padding: var(--spacing-xl);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    .main-navigation.toggled .primary-menu {
        transform: translateX(0);
    }

    .primary-menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--spacing-lg);
    }

    /* Hero */
    .hero-section {
        min-height: 80vh;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-hero {
        width: 100%;
        max-width: 280px;
    }

    /* Course Cards */
    .course-cards-grid {
        grid-template-columns: 1fr;
    }

    .course-cards-grid .course-card:last-child {
        grid-column: span 1;
        max-width: 100%;
    }

    /* About */
    .about-photo-frame {
        width: 250px;
        height: 250px;
    }

    /* Content */
    .content-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    /* Footer */
    .footer-widgets .footer-container {
        grid-template-columns: 1fr;
    }

    .footer-bottom .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-navigation .footer-menu {
        flex-wrap: wrap;
        justify-content: center;
    }

    /* Tables */
    .qtr-table {
        display: block;
        overflow-x: auto;
    }
}

/* Small Mobile (< 480px) */
@media (max-width: 480px) {
    :root {
        --font-size-hero: 1.75rem;
        --spacing-4xl: 3rem;
        --spacing-3xl: 2rem;
    }

    .about-photo-frame {
        width: 200px;
        height: 200px;
    }

    .hero-subheadline {
        font-size: 1rem;
    }
}

/* ========================================
   18. Animations
   ======================================== */

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations for course cards */
.course-card.animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.course-card.animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.course-card.animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }

/* Staggered animations for testimonials */
.testimonial-card.animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.testimonial-card.animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.testimonial-card.animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }
.testimonial-card.animate-on-scroll:nth-child(4) { transition-delay: 0.4s; }

/* Disable animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    .animate-on-scroll {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Mobile menu animation */
.menu-toggle .hamburger-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.main-navigation.toggled .menu-toggle .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.main-navigation.toggled .menu-toggle .hamburger-line:nth-child(2) {
    opacity: 0;
}

.main-navigation.toggled .menu-toggle .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Body scroll lock when mobile menu is open */
body.menu-open {
    overflow: hidden;
}

/* Print styles */
@media print {
    .site-header,
    .site-footer,
    .sidebar,
    .hero-section,
    .course-cards-section,
    .success-stories-section,
    .menu-toggle,
    .comments-area {
        display: none !important;
    }

    .content-container {
        display: block;
    }

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

    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
    }
}