/* ==========================================================================
   Hua Hin Tours - Ocean Breeze Design System
   Complete production stylesheet
   ========================================================================== */

/* ==========================================================================
   1. Design Tokens (Custom Properties)
   ========================================================================== */

:root {
    --color-primary: #0077be;
    --color-primary-dark: #005a8e;
    --color-primary-light: #e8f4fc;
    --color-accent: #ff6b6b;
    --color-accent-dark: #e55555;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fbfd;
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-heading: #1a202c;
    --color-border: #e2e8f0;
    --color-sand: #f5e6c8;
    --color-success: #48bb78;
    --color-white: #ffffff;
    --color-gold: #f6ad55;
    --color-whatsapp: #25d366;
    --color-footer-bg: #1a202c;

    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50px;
    --radius-circle: 50%;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 119, 190, 0.12);
    --shadow-header: 0 2px 20px rgba(0, 0, 0, 0.08);

    --transition: 0.3s ease;
    --max-width: 1200px;
}

/* ==========================================================================
   2. CSS Reset & Base
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-heading);
    line-height: 1.3;
    overflow-wrap: break-word;
}

p {
    overflow-wrap: break-word;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================================================
   3. Header (.site-header)
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--color-white);
    transition: background-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
    background-color: var(--color-white);
    box-shadow: var(--shadow-header);
}

/* Transparent header on hero pages */
.hero-page .site-header {
    background-color: transparent;
    box-shadow: none;
}

/* Hero page: show white logo on transparent header */
.hero-page .site-header .logo-color { display: none; }
.hero-page .site-header .logo-white { display: block; }

.hero-page .site-header .main-nav a {
    color: var(--color-white);
}

.hero-page .site-header .main-nav a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.hero-page .site-header .main-nav a.active {
    color: var(--color-white);
}

.hero-page .site-header .hamburger span {
    background-color: var(--color-white);
}

/* Scrolled state on hero pages */
.hero-page .site-header.scrolled {
    background-color: var(--color-white);
    box-shadow: var(--shadow-header);
}

/* Hero page scrolled: switch back to color logo */
.hero-page .site-header.scrolled .logo-color { display: block; }
.hero-page .site-header.scrolled .logo-white { display: none; }

.hero-page .site-header.scrolled .main-nav a {
    color: var(--color-text);
}

.hero-page .site-header.scrolled .main-nav a:hover {
    color: var(--color-primary);
}

.hero-page .site-header.scrolled .main-nav a.active {
    color: var(--color-primary);
}

.hero-page .site-header.scrolled .hamburger span {
    background-color: var(--color-text);
}

/* Header inner layout */
.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 44px;
    width: auto;
    transition: opacity var(--transition);
}

/* Default: show color logo, hide white */
.logo-color { display: block; }
.logo-white { display: none; }

/* Main navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-nav a {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 15px;
    color: var(--color-text);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background-color var(--transition);
}

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

.main-nav a.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* Header CTA button */
.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.header-cta:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

/* Hamburger menu button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    gap: 6px;
    background: none;
    border: none;
    padding: 0;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ==========================================================================
   4. Mobile Navigation
   ========================================================================== */

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.mobile-nav-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-nav {
    position: absolute;
    right: 0;
    top: 0;
    background-color: var(--color-white);
    width: 300px;
    height: 100%;
    padding-top: 100px;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
}

.mobile-nav-overlay.active .mobile-nav {
    transform: translateX(0);
}

.mobile-nav a {
    display: block;
    padding: 16px 32px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 18px;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition), color var(--transition);
}

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

.mobile-nav a.active {
    color: var(--color-primary);
    font-weight: 600;
}

.mobile-nav-cta {
    display: block;
    background-color: var(--color-accent);
    color: var(--color-white);
    margin: 24px;
    padding: 16px;
    text-align: center;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: background-color var(--transition);
}

.mobile-nav-cta:hover {
    background-color: var(--color-accent-dark);
}

/* ==========================================================================
   5. Hero Section
   ========================================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-fallback {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0077be, #00a8cc, #48bb78);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    z-index: 0;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.4));
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-white);
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(36px, 5vw, 60px);
    color: var(--color-white);
    margin-bottom: 20px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: clamp(18px, 2.5vw, 24px);
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 16px 36px;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 107, 107, 0.35);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: transparent;
    color: var(--color-white);
    padding: 16px 36px;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    border: 2px solid var(--color-white);
    cursor: pointer;
    transition: background-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    animation: bounce 2s ease infinite;
    color: var(--color-white);
    opacity: 0.8;
}

.scroll-indicator svg {
    width: 32px;
    height: 32px;
}

/* ==========================================================================
   6. Section Utilities
   ========================================================================== */

.section {
    padding: 80px 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(28px, 3.5vw, 40px);
    color: var(--color-heading);
    margin-bottom: 16px;
}

.section-header p {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 18px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.section-label {
    display: block;
    text-transform: uppercase;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 12px;
}

/* ==========================================================================
   7. Service Cards (.services-grid)
   ========================================================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 20px;
    color: var(--color-heading);
    margin-bottom: 12px;
}

.service-card p {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

.service-price {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 15px;
    display: block;
    margin-bottom: 12px;
}

.service-link {
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 15px;
    transition: gap var(--transition), color var(--transition);
}

.service-link:hover {
    gap: 8px;
    color: var(--color-primary-dark);
}

.service-link svg {
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   8. Tour Cards (.tours-grid)
   ========================================================================== */

.tours-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tour-card {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

.tour-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14);
}

.tour-card-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.tour-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tour-card-content {
    padding: 24px;
}

.tour-card-content h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 20px;
    color: var(--color-heading);
    margin-bottom: 8px;
}

.tour-card-content p {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

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

.tour-price {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    color: var(--color-primary);
}

.tour-price small {
    font-weight: 400;
    font-size: 13px;
    color: var(--color-text-light);
}

.tour-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition);
}

.tour-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* ==========================================================================
   9. Why Choose Us (.why-grid)
   ========================================================================== */

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.why-card {
    text-align: center;
    padding: 32px 24px;
}

.why-icon {
    width: 72px;
    height: 72px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--color-primary);
}

.why-icon svg {
    width: 32px;
    height: 32px;
}

.why-card h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 20px;
    color: var(--color-heading);
    margin-bottom: 12px;
}

.why-card p {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ==========================================================================
   10. Testimonials (.testimonials-grid)
   ========================================================================== */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.testimonial-card {
    background-color: var(--color-white);
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    position: relative;
    transition: box-shadow var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-stars {
    color: var(--color-gold);
    margin-bottom: 16px;
    display: flex;
    gap: 2px;
}

.testimonial-stars svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.testimonial-text {
    font-style: italic;
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-circle);
    background-color: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.testimonial-name {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 15px;
    color: var(--color-heading);
}

.testimonial-location {
    font-size: 13px;
    color: var(--color-text-light);
}

/* ==========================================================================
   11. CTA Section
   ========================================================================== */

.cta-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(28px, 3.5vw, 40px);
    color: var(--color-white);
    margin-bottom: 16px;
}

.cta-section p {
    opacity: 0.9;
    font-size: 18px;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

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

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

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

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

/* ==========================================================================
   12. Stats Bar
   ========================================================================== */

.stats-bar {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 48px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-label {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 15px;
    opacity: 0.8;
}

/* ==========================================================================
   13. Footer (.site-footer)
   ========================================================================== */

.footer-wave {
    color: var(--color-footer-bg);
    margin-bottom: -1px;
    display: block;
    line-height: 0;
}

.footer-wave svg {
    width: 100%;
    height: auto;
}

.site-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-white);
}

.footer-content {
    padding: 60px 0 30px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 20px;
    margin-bottom: 16px;
}

.footer-logo:hover {
    color: var(--color-white);
}

.footer-about {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-circle);
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: background-color var(--transition), color var(--transition);
}

.social-link:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    color: var(--color-white);
    margin-bottom: 20px;
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.6;
}

.footer-contact svg {
    flex-shrink: 0;
    margin-top: 2px;
    width: 16px;
    height: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 40px;
    padding-top: 24px;
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 14px;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color var(--transition);
}

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

/* ==========================================================================
   14. WhatsApp Float
   ========================================================================== */

.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 998;
    width: 60px;
    height: 60px;
    background-color: var(--color-whatsapp);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    text-decoration: none;
    color: var(--color-white);
    transition: transform var(--transition), box-shadow var(--transition);
    animation: pulse 2s ease infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 8px 28px rgba(37, 211, 102, 0.5);
    animation: none;
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background-color: #333;
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 6px solid #333;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
}

/* ==========================================================================
   15. Animations & Keyframes
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(8px);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    70% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4),
                    0 0 0 16px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4),
                    0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

/* ==========================================================================
   16. Page Hero (interior pages)
   ========================================================================== */

.page-hero {
    padding-top: 140px;
    padding-bottom: 60px;
    background-color: var(--color-primary-light);
    text-align: center;
}

.page-hero h1 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(32px, 4vw, 48px);
    color: var(--color-heading);
    margin-bottom: 12px;
}

.page-hero p {
    font-family: var(--font-body);
    font-size: 18px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.page-hero .breadcrumb {
    font-size: 14px;
    color: var(--color-text-light);
    margin-top: 16px;
}

.page-hero .breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

.page-hero .breadcrumb a:hover {
    color: var(--color-primary-dark);
}

/* Listing grid (tours, transfers, vehicles, houses pages) */
.listing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.listing-card {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

.listing-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14);
}

.listing-card-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.listing-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.listing-card-content {
    padding: 24px;
}

.listing-card-content h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 20px;
    color: var(--color-heading);
    margin-bottom: 8px;
}

.listing-card-content p {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

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

.listing-card-price {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    color: var(--color-primary);
}

.listing-card-price small {
    font-weight: 400;
    font-size: 13px;
    color: var(--color-text-light);
}

.listing-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition);
}

.listing-card-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* ==========================================================================
   17. Contact Page
   ========================================================================== */

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.form-group label {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 14px;
    color: var(--color-heading);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--color-text);
    background-color: var(--color-white);
    transition: border-color var(--transition), box-shadow var(--transition);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-light);
    opacity: 0.7;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23718096' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-submit {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 16px 36px;
    border-radius: var(--radius-full);
    border: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
    align-self: flex-start;
}

.form-submit:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 119, 190, 0.3);
}

.form-submit:active {
    transform: translateY(0);
}

.form-submit:disabled {
    background-color: var(--color-border);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Contact info sidebar */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}

.contact-info-card:hover {
    box-shadow: var(--shadow-sm);
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-info-icon svg {
    width: 22px;
    height: 22px;
}

.contact-info-text h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    color: var(--color-heading);
    margin-bottom: 4px;
}

.contact-info-text p,
.contact-info-text a {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.contact-info-text a {
    text-decoration: none;
    transition: color var(--transition);
}

.contact-info-text a:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   18. Discover Hua Hin Page
   ========================================================================== */

.discover-grid {
    columns: 2;
    column-gap: 24px;
}

.discover-card {
    break-inside: avoid;
    margin-bottom: 24px;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition), transform var(--transition);
}

.discover-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.discover-card-image {
    width: 100%;
    height: auto;
    display: block;
}

.discover-card-content {
    padding: 24px;
}

.discover-card-content h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 20px;
    color: var(--color-heading);
    margin-bottom: 8px;
}

.discover-card-content p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ==========================================================================
   19. Utility Classes
   ========================================================================== */

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

.mt-1 { margin-top: 16px; }
.mt-2 { margin-top: 24px; }
.mt-3 { margin-top: 32px; }
.mt-4 { margin-top: 48px; }

.mb-1 { margin-bottom: 16px; }
.mb-2 { margin-bottom: 24px; }
.mb-3 { margin-bottom: 32px; }
.mb-4 { margin-bottom: 48px; }

.hidden-mobile {
    display: block;
}

.hidden-desktop {
    display: none;
}

/* ==========================================================================
   20. Responsive Breakpoints
   ========================================================================== */

/* Tablet and below: 1024px */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

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

    .hero-content h1 {
        font-size: clamp(32px, 5vw, 48px);
    }
}

/* Tablet: 768px */
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .tours-grid {
        grid-template-columns: 1fr;
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

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

    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .discover-grid {
        columns: 1;
    }

    .page-hero {
        padding-top: 120px;
        padding-bottom: 40px;
    }

    .hidden-mobile {
        display: none;
    }

    .hidden-desktop {
        display: block;
    }

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

    .btn-primary,
    .btn-outline {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

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

    .stat-number {
        font-size: 36px;
    }
}

/* Small mobile: 600px */
@media (max-width: 600px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* Extra small mobile: 480px */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .listing-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        padding: 0 16px;
    }

    .container {
        padding: 0 16px;
    }

    .hero-content {
        padding: 0 16px;
    }

    .section {
        padding: 48px 0;
    }

    .service-card {
        padding: 24px 20px;
    }

    .testimonial-card {
        padding: 24px;
    }

    .stat-number {
        font-size: 32px;
    }

    .mobile-nav {
        width: 100%;
    }

    .whatsapp-float {
        bottom: 16px;
        right: 16px;
        width: 52px;
        height: 52px;
    }

    .whatsapp-tooltip {
        display: none;
    }
}

/* ==========================================================================
   21. Print Styles
   ========================================================================== */

@media print {
    .site-header,
    .hamburger,
    .mobile-nav-overlay,
    .whatsapp-float,
    .scroll-indicator,
    .footer-wave {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    .hero {
        min-height: auto;
        padding: 40px 0;
    }

    .hero-overlay,
    .hero-video-container,
    .hero-fallback {
        display: none;
    }

    .hero-content {
        color: #000;
    }

    .hero-content h1 {
        color: #000;
        text-shadow: none;
    }

    .section {
        padding: 30px 0;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}

/* ==========================================================================
   22. Accessibility
   ========================================================================== */

@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;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .hero-fallback {
        animation: none;
        background-position: 0% 50%;
    }

    .whatsapp-float {
        animation: none;
    }
}

/* Focus visible styles for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip to content link for screen readers */
.skip-to-content {
    position: absolute;
    top: -100%;
    left: 16px;
    padding: 12px 24px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--radius-sm);
    z-index: 10000;
    transition: top 0.2s ease;
}

.skip-to-content:focus {
    top: 16px;
}