:root {
    --bg-color: #FBF9F6;
    --accent-gold: #B5935B;
    --text-dark: #1A1A1A;
    --text-muted: #7D7D7D;
    --white: #FFFFFF;
    --header-font: 'Noto Sans Thai', 'Kanit', sans-serif;
    --body-font: 'Noto Sans Thai', 'Prompt', sans-serif;
    --transition-luxury: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-dark);
    font-family: var(--body-font);
    line-height: 1.8;
    overflow-x: hidden;
    cursor: none;
}

/* Floating Action Button (FAB) */
.fab {
    position: fixed;
    bottom: 40px;
    right: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-gold);
    color: var(--white);
    text-decoration: none;
    padding: 15px 25px;
    border-radius: 50px;
    z-index: 2000;
    box-shadow: 0 10px 30px rgba(181, 147, 91, 0.4);
    transition: var(--transition-luxury);
    animation: pulse 2s infinite;
}

.fab:hover {
    transform: scale(1.1) translateY(-5px);
    background-color: var(--text-dark);
}

.fab-icon {
    font-size: 1.5rem;
    margin-right: 10px;
}

.fab-text {
    font-family: var(--body-font);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(181, 147, 91, 0.7); }
    70% { box-shadow: 0 0 0 20px rgba(181, 147, 91, 0); }
    100% { box-shadow: 0 0 0 0 rgba(181, 147, 91, 0); }
}

/* Progress Bar */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 1001;
}

.progress-bar {
    height: 100%;
    background: var(--accent-gold);
    width: 0%;
    transition: width 0.1s ease;
}

/* Texture Overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    background-color: rgba(251, 249, 246, 0.7);
    border-bottom: 1px solid rgba(181, 147, 91, 0.1);
}

.logo {
    font-family: var(--header-font);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.logo span {
    color: var(--accent-gold);
}

.slide-indicator {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

/* Slide General */
.slide {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8%;
}

.content {
    max-width: 1100px;
    width: 100%;
    text-align: center;
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1.2s cubic-bezier(0.19, 1, 0.22, 1);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 1.2s cubic-bezier(0.19, 1, 0.22, 1);
}
.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}
.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 1.2s cubic-bezier(0.19, 1, 0.22, 1);
}
.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.section-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    font-weight: 600;
}

h1 {
    font-family: var(--header-font);
    font-size: clamp(3rem, 6vw, 5.5rem);
    line-height: 1.1;
    margin-bottom: 2rem;
    font-weight: 500;
}

h1 span {
    color: var(--accent-gold);
    font-style: italic;
    font-weight: 400;
}

h2 {
    font-family: var(--header-font);
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 2.5rem;
    font-weight: 500;
    line-height: 1.2;
}

p {
    font-size: 1.4rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 2rem auto;
    font-weight: 300;
}

/* Layouts */
.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    width: 100%;
}

.hero-text {
    text-align: left;
}

.hero-text h1 {
    text-align: left;
}

.hero-text p {
    text-align: left;
    margin-left: 0;
}

.hero-visual {
    width: 100%;
    height: 80vh;
    border-radius: 30px;
    position: relative;
    box-shadow: 0 30px 60px rgba(181, 147, 91, 0.2);
    overflow: hidden;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-luxury);
}

.hero-visual:hover img {
    transform: scale(1.05);
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    width: 100%;
}

.split-image {
    width: 100%;
    height: 70vh;
    border-radius: 20px;
    overflow: hidden;
}

.split-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-luxury);
}

.split-image:hover img {
    transform: scale(1.05);
}

.split-text {
    text-align: left;
}

.split-text h2 {
    text-align: left;
}

.split-text p {
    text-align: left;
    margin-left: 0;
}

/* Luxury Card */
.luxury-card {
    background-color: transparent;
    padding: 2.5rem;
    border-radius: 0;
    border-left: 2px solid var(--accent-gold);
    text-align: left;
    font-size: 1.1rem;
    margin-top: 2rem;
    font-weight: 300;
}

/* Overview Timeline */
.overview-timeline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 4rem 0;
    position: relative;
    padding: 0 2rem;
}

.overview-timeline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 2rem;
    width: calc(100% - 4rem);
    height: 1px;
    background: rgba(181, 147, 91, 0.3);
    z-index: -1;
}

.timeline-dot {
    background: var(--bg-color);
    border: 1px solid var(--accent-gold);
    width: 90px;
    height: 90px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--header-font);
    font-weight: 500;
    font-size: 1.2rem;
    transition: var(--transition-luxury);
    cursor: none;
}

.timeline-dot span {
    font-size: 0.6rem;
    font-family: var(--body-font);
    color: var(--text-muted);
}

.timeline-dot:hover {
    transform: scale(1.2);
    background: var(--accent-gold);
    color: var(--white);
}

.timeline-dot:hover span {
    color: var(--white);
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.info-card {
    background-color: var(--white);
    padding: 0 0 2.5rem 0;
    border-radius: 20px;
    transition: var(--transition-luxury);
    border: 1px solid #EEE;
    text-align: left;
    overflow: hidden;
}

.info-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 1.5rem;
    transition: var(--transition-luxury);
}

.info-card:hover img {
    transform: scale(1.05);
}

.info-card h3 {
    font-family: var(--header-font);
    font-size: 2rem;
    color: var(--accent-gold);
    margin-bottom: 1rem;
    padding: 0 2.5rem;
}

.info-card p {
    font-size: 1.1rem;
    margin-bottom: 0;
    padding: 0 2.5rem;
}

/* Special styles for cards without images */
.info-card.no-img {
    padding: 2.5rem;
    border-top: 5px solid var(--accent-gold);
}

.info-card.no-img h3 {
    padding: 0;
}

.info-card.no-img p {
    padding: 0;
}

/* Main Visual Image for Wi-Fi Slide */
.main-visual-image {
    width: 100%;
    max-width: 900px;
    margin: 0 auto 3rem auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.main-visual-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-luxury);
}

.main-visual-image:hover img {
    transform: scale(1.02);
}

/* Comparison Table */
.comparison-table {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    background: transparent;
    margin-top: 3rem;
    border-top: 1px solid var(--accent-gold);
    border-bottom: 1px solid var(--accent-gold);
}

.table-header {
    color: var(--text-dark);
    padding: 1.5rem;
    font-family: var(--header-font);
    font-size: 1.2rem;
    text-align: center;
    border-bottom: 1px solid rgba(26, 26, 26, 0.2);
    font-weight: 500;
}

.table-cell {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(26, 26, 26, 0.1);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 300;
}

.table-cell:nth-last-child(-n+3) {
    border-bottom: none;
}

.table-cell.gold {
    color: var(--accent-gold);
    font-weight: 500;
}

/* Modern List */
.modern-list {
    list-style: none;
    text-align: left;
    display: inline-block;
    font-size: 1.3rem;
}

.modern-list li {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    position: relative;
}

.modern-list li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--accent-gold);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    padding: 0 0 3rem 0;
    background: var(--white);
    border-radius: 20px;
    text-align: left;
    border-bottom: 4px solid var(--accent-gold);
    overflow: hidden;
}

.feature-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 1.5rem;
    transition: var(--transition-luxury);
}

.feature-item:hover img {
    transform: scale(1.05);
}

.feature-item h3 {
    font-family: var(--header-font);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    padding: 0 2rem;
}

.feature-item p {
    padding: 0 2rem;
}

/* Impact Boxes */
.impact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.impact-box {
    padding: 0 0 2.5rem 0;
    background: var(--white);
    border-radius: 20px;
    text-align: center;
    border: 1px solid #EEE;
    transition: var(--transition-luxury);
    overflow: hidden;
}

.impact-box img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 1.5rem;
    transition: var(--transition-luxury);
}

.impact-box:hover img {
    transform: scale(1.05);
}

.impact-box strong {
    display: block;
    font-family: var(--header-font);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-gold);
}

.impact-box p {
    padding: 0 2rem;
}

.summary-list {
    text-align: left;
    display: inline-block;
    font-size: 1.4rem;
    margin-top: 2rem;
}

.summary-list p {
    text-align: left;
    margin-left: 0;
    color: var(--text-dark);
}

/* Final Slide */
.thank-you {
    font-family: var(--header-font);
    font-size: 3.5rem;
    margin-top: 3rem;
    color: var(--accent-gold);
}

/* Custom Cursor Styles */
.cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border: 1px solid var(--accent-gold);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s, background-color 0.3s, border-color 0.3s;
}
.cursor.hovering {
    width: 70px;
    height: 70px;
    background-color: rgba(181, 147, 91, 0.1);
    border-color: transparent;
}
.cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    background-color: var(--text-dark);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-layout, .split-layout, .info-grid, .feature-grid, .impact-cards {
        grid-template-columns: 1fr;
    }
    .hero-text, .split-text {
        text-align: center;
    }
    .hero-text h1, .hero-text p, .split-text h2, .split-text p {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    body, a, button, .fab, .timeline-dot { cursor: auto; }
    .cursor, .cursor-dot { display: none; }
}