/* ============================================
   sawan888 — Design System
   Theme: Deep Indigo + Bright Violet + Sky Cyan
   Niche: Slots (สล็อตเว็บตรง)
   "สวรรค์" = Heaven — Celestial/Mystical theme
   ============================================ */

:root {
  /* Base Palette */
  --color-primary: #0A0E2E;
  --color-secondary: #7C4DFF;
  --color-accent: #00E5FF;
  --color-bg: #070A20;
  --color-surface: rgba(10, 14, 46, 0.6);
  --color-text: #FFFFFF;

  /* Extended Tokens */
  --bg-footer: #060818;
  --bg-card-solid: #0F1338;
  --bg-card-dark: #0B0D28;
  --bg-heading-block: rgba(10, 14, 46, 0.5);
  --bg-ticker: #0D1030;
  --text-heading: #D4C6F9;
  --text-heading-alt: #C0B0F0;
  --text-nav-hover: #00E5FF;
  --text-link: #A07EFF;
  --text-keyword: #B08FFF;
  --text-footer-brand: #7C4DFF;
  --border-header: rgba(124, 77, 255, 0.3);
  --border-section: #7C4DFF;
  --border-footer: #7C4DFF;
  --border-faq: #0F1338;
  --border-divider: rgba(124, 77, 255, 0.2);

  /* Gradients */
  --gradient-btn-primary: linear-gradient(180deg, #7C4DFF 0%, #5635B2 100%);
  --gradient-btn-secondary: linear-gradient(180deg, #A07EFF 0%, #7C4DFF 100%);
  --gradient-btn-mobile: linear-gradient(180deg, #7C4DFF 0%, #5635B2 100%);
  --gradient-provider: linear-gradient(135deg, #0F1338 0%, #161A48 100%);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 60px;
  --space-3xl: 80px;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Kanit', sans-serif;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: radial-gradient(ellipse at 50% 0%, rgba(124,77,255,0.06) 0%, transparent 60%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body:not(.js-ready) .fade-in {
  opacity: 1 !important;
  transform: none !important;
}

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

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ============================================
   Typography
   ============================================ */

h1 {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-heading);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: 25px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-heading);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-heading-alt);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
}

/* ============================================
   Header
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-primary);
  border-bottom: 1px solid var(--border-header);
  height: 72px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.logo img {
  height: 56px;
  width: auto;
}

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
}

.main-nav {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.main-nav a {
  color: var(--color-text);
  font-size: 16px;
  font-weight: 700;
  transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-nav-hover);
}

.cta-header-nav {
  background: var(--gradient-btn-primary);
  color: #FFFFFF !important;
  padding: 10px 24px;
  border-radius: 25px;
  font-weight: 500;
  font-size: 16px;
  border: none;
  text-shadow: 0 0 10px rgba(0,0,0,0.3);
  transition: transform 0.2s ease;
  cursor: pointer;
}

.cta-header-nav:hover {
  transform: scale(0.96);
  color: #FFFFFF !important;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 28px;
  cursor: pointer;
  padding: 8px;
}

/* ============================================
   Mobile Nav
   ============================================ */

.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--color-primary);
  border-bottom: 1px solid var(--border-header);
  padding: var(--space-md);
  z-index: 999;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  color: var(--color-text);
  font-size: 18px;
  font-weight: 500;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-divider);
}

.mobile-nav a:hover {
  color: var(--text-nav-hover);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  padding: var(--space-2xl) 0;
  text-align: center;
}

.hero-image {
  border-radius: 10px;
  margin-bottom: var(--space-lg);
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 {
  font-size: 36px;
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: 18px;
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  opacity: 0.9;
}

/* ============================================
   CTA Buttons
   ============================================ */

.cta-button {
  display: inline-block;
  background: var(--gradient-btn-primary);
  color: #FFFFFF;
  padding: 14px 32px;
  border-radius: 25px;
  font-weight: 500;
  font-size: 16px;
  font-family: 'Kanit', sans-serif;
  border: none;
  text-shadow: 0 0 10px rgba(0,0,0,0.3);
  transition: transform 0.2s ease;
  cursor: pointer;
  text-decoration: none;
}

.cta-button:hover {
  transform: scale(0.96);
  color: #FFFFFF;
}

.cta-button-secondary {
  background: var(--gradient-btn-secondary);
  border: 1px solid rgba(255,255,255,0.9);
}

/* ============================================
   Floating CTA
   ============================================ */

.floating-cta {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 900;
  background: var(--gradient-btn-primary);
  color: #FFFFFF;
  padding: 14px 28px;
  border-radius: 25px;
  font-weight: 600;
  font-size: 16px;
  font-family: 'Kanit', sans-serif;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(124,77,255,0.4);
  transition: transform 0.2s ease;
  animation: pulse-glow 2s ease-in-out infinite;
}

.floating-cta:hover {
  transform: scale(0.96);
  color: #FFFFFF;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 4px 20px rgba(124,77,255,0.4); }
  50% { box-shadow: 0 4px 30px rgba(124,77,255,0.7); }
}

/* ============================================
   Content Sections
   ============================================ */

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

.section-card {
  background: var(--color-surface);
  border: 2px solid var(--border-section);
  border-radius: 10px;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.section-card:hover {
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.two-col.reverse {
  direction: rtl;
}

.two-col.reverse > * {
  direction: ltr;
}

.section-image {
  border-radius: 10px;
  width: 100%;
  transition: filter 0.3s ease;
}

.section-image:hover {
  filter: brightness(132%) contrast(121%) saturate(116%);
}

/* ============================================
   Heading Block
   ============================================ */

.heading-block {
  background: var(--bg-heading-block);
  padding: var(--space-md) var(--space-lg);
  border-radius: 8px;
  margin-bottom: var(--space-md);
}

/* ============================================
   Feature / USP Lists
   ============================================ */

.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-lg);
  position: relative;
  border-bottom: 1px solid var(--border-divider);
}

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

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

/* ============================================
   TOC (Table of Contents)
   ============================================ */

.toc-container {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-section);
  border-radius: 10px;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.toc-container h2 {
  font-size: 20px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.toc-list {
  list-style: none;
  padding: 0;
  counter-reset: toc-counter;
}

.toc-list li {
  counter-increment: toc-counter;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-divider);
}

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

.toc-list li a {
  color: var(--text-link);
  font-size: 16px;
}

.toc-list li a::before {
  content: counter(toc-counter) '. ';
  color: var(--color-accent);
  font-weight: 600;
}

.toc-list li a:hover {
  color: var(--color-accent);
}

/* ============================================
   Ticker / Announcement Bar
   ============================================ */

.ticker {
  background: var(--bg-ticker);
  border-radius: 20px;
  padding: var(--space-sm) var(--space-lg);
  margin: var(--space-lg) 0;
  overflow: hidden;
  white-space: nowrap;
}

.ticker-content {
  display: inline-block;
  animation: ticker-scroll 20s linear infinite;
  color: var(--color-accent);
  font-size: 14px;
}

@keyframes ticker-scroll {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-section {
  background: var(--bg-card-dark);
  border-radius: 20px;
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.faq-grid {
  display: grid;
  gap: var(--space-md);
}

.faq-card {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-faq);
  border-radius: 20px;
  padding: 35px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.faq-card:hover {
  transform: translate3d(0, -8px, 0) scale(1.02);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.faq-card h3 {
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  font-size: 18px;
}

.faq-card p {
  opacity: 0.9;
  line-height: 1.7;
}

/* ============================================
   Promotion Cards
   ============================================ */

.promo-card {
  background: var(--color-surface);
  border: 2px solid var(--border-section);
  border-radius: 10px;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.promo-card img {
  border-radius: 8px;
  margin-bottom: var(--space-md);
  max-width: 600px;
  width: 100%;
}

.promo-steps {
  list-style: decimal;
  padding-left: var(--space-lg);
  margin: var(--space-md) 0;
}

.promo-steps li {
  padding: var(--space-xs) 0;
}

/* ============================================
   Login Form
   ============================================ */

.login-form-container {
  max-width: 480px;
  margin: 0 auto var(--space-xl);
  background: var(--color-surface);
  border: 2px solid var(--border-section);
  border-radius: 10px;
  padding: var(--space-xl);
}

.login-form h3 {
  text-align: center;
  margin-bottom: var(--space-lg);
  color: var(--color-accent);
}

.login-form label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: 15px;
  opacity: 0.9;
}

.login-form input {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  height: 48px;
  padding: 0 var(--space-md);
  color: var(--color-text);
  font-family: 'Kanit', sans-serif;
  font-size: 16px;
  margin-bottom: var(--space-md);
  transition: border-color 0.2s ease;
}

.login-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.login-form .cta-button {
  width: 100%;
  text-align: center;
  margin-bottom: var(--space-md);
}

.form-links {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

/* ============================================
   Archive / Blog Cards
   ============================================ */

.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.blog-card {
  background: var(--color-surface);
  border: 2px solid var(--border-section);
  border-radius: 10px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-card-body {
  padding: var(--space-md);
}

.blog-card-body h3 {
  font-size: 18px;
  margin-bottom: var(--space-sm);
}

.blog-card-body h3 a {
  color: var(--text-heading);
}

.blog-card-body h3 a:hover {
  color: var(--color-accent);
}

.blog-card-meta {
  font-size: 13px;
  opacity: 0.6;
  margin-bottom: var(--space-sm);
}

.blog-card-excerpt {
  font-size: 15px;
  opacity: 0.85;
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  color: var(--color-accent);
  font-weight: 500;
  font-size: 15px;
}

/* ============================================
   Blog Post
   ============================================ */

.blog-post {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.blog-post .featured-image {
  width: 100%;
  border-radius: 10px;
  margin-bottom: var(--space-lg);
}

.blog-meta {
  font-size: 14px;
  opacity: 0.6;
  margin-bottom: var(--space-lg);
}

.blog-post h1 {
  margin-bottom: var(--space-md);
}

.blog-post h2 {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-divider);
}

.blog-post p {
  line-height: 1.8;
}

.blog-post ul, .blog-post ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.blog-post li {
  padding: var(--space-xs) 0;
  line-height: 1.7;
}

.cross-links {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-section);
  border-radius: 10px;
  padding: var(--space-lg);
  margin-top: var(--space-xl);
}

.cross-links h3 {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.cross-links ul {
  list-style: none;
  padding: 0;
}

.cross-links li {
  padding: var(--space-sm) 0;
}

/* ============================================
   Label Bars
   ============================================ */

.label-bar {
  background: var(--gradient-provider);
  border: 1px solid var(--border-section);
  border-radius: 7px;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

/* ============================================
   Registration Steps
   ============================================ */

.reg-steps {
  list-style: decimal;
  padding-left: var(--space-lg);
  margin: var(--space-md) 0 var(--space-lg);
}

.reg-steps li {
  padding: var(--space-sm) 0;
  line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: var(--bg-footer);
  border-top: 2px solid var(--border-footer);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.footer-brand {
  color: var(--text-footer-brand);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.footer-col h4 {
  color: var(--text-heading);
  margin-bottom: var(--space-md);
  font-size: 18px;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.7);
  padding: var(--space-xs) 0;
  font-size: 15px;
}

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

.footer-cta {
  margin-top: var(--space-md);
}

.footer-cta .cta-button-secondary {
  display: inline-block;
}

.copyright {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-divider);
  font-size: 14px;
  opacity: 0.6;
}

/* ============================================
   Scroll Fade Animation
   ============================================ */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Back to Top
   ============================================ */

.back-to-top {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 800;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-section);
  color: var(--color-accent);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Responsive — Tablet (768-1024px)
   ============================================ */

@media (max-width: 1023px) {
  h1 { font-size: 25px; }
  h2 { font-size: 21px; }
  h3 { font-size: 19px; }
  body { font-size: 16px; }

  .main-nav { display: none; }
  .cta-header-nav { display: none; }
  .hamburger { display: block; }

  .two-col {
    grid-template-columns: 1fr;
  }

  .two-col.reverse {
    direction: ltr;
  }

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

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

/* ============================================
   Responsive — Mobile (<767px)
   ============================================ */

@media (max-width: 767px) {
  h1 { font-size: 20px; }
  h2 { font-size: 19px; }
  h3 { font-size: 17px; }
  body { font-size: 15px; }

  .hero h1 { font-size: 22px; }

  .hero {
    padding: var(--space-xl) 0;
  }

  .content-section {
    padding: var(--space-lg) 0;
  }

  .section-card {
    padding: var(--space-md);
  }

  .cta-button {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
    min-height: 48px;
  }

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

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

  .floating-cta {
    bottom: 10px;
    right: 10px;
    left: 10px;
    text-align: center;
    border-radius: 15px;
  }

  .faq-card {
    padding: var(--space-lg);
  }

  .promo-card img {
    max-width: 100%;
  }
}