/* ================================
   Saipoh Kayak Krabi - Main Styles
   ================================ */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Nature Inspired */
    --primary-green: #2d6a4f;
    --secondary-blue: #52b788;
    --accent-teal: #40916c;
    --light-bg: #f8f9fa;
    --dark-text: #1b4332;
    --white: #ffffff;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --whatsapp-green: #25D366;

    /* Typography - System Fonts for Privacy */
    --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;

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

    /* Layout */
    --container-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 16px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--dark-text);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-text);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

.text-small {
    font-size: 0.875rem;
}

.text-link {
    color: var(--accent-teal);
    font-weight: 600;
}

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

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

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

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

.section-subtitle {
    color: var(--accent-teal);
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

/* ===== Skip Link (Accessibility) ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-green);
    color: var(--white);
    padding: var(--spacing-sm);
    z-index: 100;
    border-radius: 0 0 var(--border-radius) 0;
}

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

/* ===== Cookie Consent Banner (PDPA Thailand) ===== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-text);
    color: var(--white);
    padding: var(--spacing-md);
    z-index: 9999;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
    border-top: 3px solid var(--accent-teal);
}

.cookie-consent-content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.cookie-consent-text p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--light-gray);
}

.cookie-consent-text a {
    color: var(--secondary-blue);
    text-decoration: underline;
    font-weight: 600;
}

.cookie-consent-text a:hover {
    color: var(--white);
}

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

@media (min-width: 768px) {
    .cookie-consent-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    .cookie-consent-buttons {
        flex-wrap: nowrap;
        justify-content: flex-end;
    }
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h2 {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin-bottom: 0.25rem;
}

.thai-name {
    font-size: 0.875rem;
    color: var(--gray);
    display: block;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-green);
    border-radius: 3px;
    transition: var(--transition);
}

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

.nav-menu a {
    color: var(--dark-text);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

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

/* Language Switcher */
.language-switcher {
    position: relative;
    margin-left: var(--spacing-md);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--light-bg);
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--dark-text);
}

#currentLangFlag {
    font-size: 1.2em;
    line-height: 1;
}

.lang-btn:hover {
    background: var(--light-gray);
}

.lang-btn svg {
    transition: var(--transition);
}

.lang-btn[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown li {
    border-bottom: 1px solid var(--light-gray);
}

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

.lang-dropdown button {
    width: 100%;
    text-align: left;
    padding: var(--spacing-sm);
    color: var(--dark-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-dropdown button:hover {
    background: var(--light-bg);
    color: var(--accent-teal);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--accent-teal);
    border-color: var(--accent-teal);
}

.btn-secondary:hover {
    background: var(--accent-teal);
    color: var(--white);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

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

.whatsapp-btn:hover {
    background: #128C7E;
    border-color: #128C7E;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-blue));
    background-image: url('hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    margin-top: 76px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4));
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8), 0 2px 10px rgba(0, 0, 0, 0.6);
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), transparent);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.hero-thai {
    display: block;
    font-size: 2rem;
    margin-top: var(--spacing-xs);
    opacity: 0.9;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
    font-weight: 300;
}

.rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.stars {
    color: #ffc107;
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.rating-text {
    font-size: 1.25rem;
    font-weight: 700;
}

.reviews-count {
    opacity: 0.9;
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: none;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    opacity: 0.8;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* ===== About Section ===== */
.about {
    background: var(--white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-green);
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--gray);
    margin: 0;
}

/* ===== Tours Section ===== */
.tours {
    background: var(--light-bg);
}

.tour-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    max-width: 1000px;
    margin: 0 auto;
}

.tour-card.featured {
    border: 3px solid var(--accent-teal);
}

.tour-image {
    position: relative;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-blue));
    overflow: hidden;
}

.tour-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 85%;
}

.tour-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--whatsapp-green);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

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

.tour-content h3 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.tour-description {
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    color: var(--gray);
}

.tour-details {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--border-radius);
}

.tour-detail-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.tour-detail-item svg {
    color: var(--accent-teal);
    flex-shrink: 0;
    margin-top: 2px;
}

.tour-detail-item strong {
    color: var(--primary-green);
}

.price {
    color: var(--accent-teal);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 var(--spacing-xs);
}

.tour-times {
    margin-bottom: var(--spacing-md);
}

.tour-times h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-green);
}

.time-slots {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.time-slot {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--border-radius);
    font-weight: 600;
}

.time-slot svg {
    color: var(--accent-teal);
}

.tour-includes {
    margin-bottom: var(--spacing-md);
}

.tour-includes h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-green);
}

.tour-includes ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.tour-includes li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.tour-includes li::before {
    content: "✓";
    color: var(--whatsapp-green);
    font-weight: 700;
    font-size: 1.25rem;
}

.tour-book-btn {
    width: 100%;
    justify-content: center;
    font-size: 1.125rem;
    margin-top: var(--spacing-md);
}

/* ===== Gallery Section ===== */
.gallery {
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    background: var(--light-gray);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: var(--white);
    padding: var(--spacing-md);
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay p {
    margin: 0;
    font-weight: 600;
    font-size: 1.125rem;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--light-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-bg);
    border-radius: 50%;
    color: var(--accent-teal);
}

.contact-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    margin-bottom: var(--spacing-xs);
    color: var(--gray);
}

.contact-whatsapp-btn {
    margin-top: var(--spacing-sm);
}

.social-proof {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-blue));
    color: var(--white);
    border-radius: var(--border-radius);
    text-align: center;
}

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

.stars-large {
    font-size: 2rem;
    color: #ffc107;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 4px;
}

.rating-large p {
    margin: 0;
}

.rating-large strong {
    font-size: 2rem;
}

.contact-map {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 100%;
    min-height: 450px;
}

.contact-map iframe {
    display: block;
    width: 100%;
    height: 100%;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-text);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.footer-brand .thai-name {
    color: var(--light-gray);
}

.footer-brand p {
    color: var(--light-gray);
    font-size: 0.95rem;
}

.footer h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: var(--light-gray);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--secondary-blue);
}

.footer-contact p {
    color: var(--light-gray);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.footer-lang-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.footer-lang-buttons button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-lang-buttons button:hover {
    background: var(--secondary-blue);
}

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

.footer-bottom p {
    color: var(--light-gray);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

/* ===== Floating WhatsApp Button ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--whatsapp-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.4);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        box-shadow: 0 0 0 20px rgba(37, 211, 102, 0);
    }
}