/**
 * PH444 Design Stylesheet
 * All classes use vb19- prefix for namespace isolation
 * Color palette: #4DB6AC | #0F0F23 | #FFC0CB | #008B8B | #FFB74D
 * Mobile-first design, max-width 430px
 */

/* Root variables */
:root {
  --vb19-primary: #4DB6AC;
  --vb19-bg: #0F0F23;
  --vb19-text: #FFC0CB;
  --vb19-dark-teal: #008B8B;
  --vb19-warm-orange: #FFB74D;
  --vb19-card-bg: #1A1A3E;
  --vb19-border: #2A2A5A;
  --vb19-white: #FFFFFF;
  --vb19-light-gray: #B0B0D0;
  --vb19-radius: 8px;
  --vb19-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

/* Base reset and root font */
html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--vb19-bg);
  color: var(--vb19-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  max-width: 430px;
  margin: 0 auto;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--vb19-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--vb19-warm-orange);
}

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

/* ========== HEADER ========== */
.vb19-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: 52px;
  background: linear-gradient(135deg, #0a0a1a 0%, #1A1A3E 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  z-index: 1000;
  border-bottom: 1px solid var(--vb19-border);
}

.vb19-logo-area {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.vb19-logo-area img {
  width: 28px;
  height: 28px;
  border-radius: 4px;
}

.vb19-logo-area span {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--vb19-primary);
  letter-spacing: 0.5px;
}

.vb19-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.vb19-btn-register,
.vb19-btn-login {
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  font-size: 1.2rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.vb19-btn-register {
  background: linear-gradient(135deg, var(--vb19-primary), var(--vb19-dark-teal));
  color: var(--vb19-white);
}

.vb19-btn-register:hover {
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(77, 182, 172, 0.4);
}

.vb19-btn-login {
  background: transparent;
  color: var(--vb19-primary);
  border: 1.5px solid var(--vb19-primary);
}

.vb19-btn-login:hover {
  background: rgba(77, 182, 172, 0.1);
}

.vb19-menu-btn {
  background: none;
  border: none;
  color: var(--vb19-primary);
  font-size: 2.2rem;
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========== MOBILE SLIDE MENU ========== */
.vb19-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9998;
}

.vb19-mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 75%;
  max-width: 300px;
  height: 100vh;
  background: linear-gradient(180deg, #0a0a1a 0%, #1A1A3E 100%);
  z-index: 9999;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  padding: 2rem 1.5rem;
}

.vb19-menu-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--vb19-border);
}

.vb19-menu-header img {
  width: 36px;
  height: 36px;
  border-radius: 6px;
}

.vb19-menu-header span {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--vb19-primary);
}

.vb19-menu-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--vb19-light-gray);
  font-size: 2rem;
  cursor: pointer;
}

.vb19-menu-nav {
  list-style: none;
}

.vb19-menu-nav li {
  margin-bottom: 0.3rem;
}

.vb19-menu-nav a {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  color: var(--vb19-light-gray);
  font-size: 1.4rem;
  border-radius: var(--vb19-radius);
  transition: all 0.2s ease;
}

.vb19-menu-nav a:hover {
  background: rgba(77, 182, 172, 0.1);
  color: var(--vb19-primary);
}

.vb19-menu-nav a i,
.vb19-menu-nav a .material-icons {
  font-size: 2rem;
  width: 24px;
  text-align: center;
}

/* ========== MAIN CONTENT ========== */
.vb19-main {
  padding-top: 52px;
  padding-bottom: 1rem;
}

.vb19-container {
  padding: 0 1rem;
}

/* ========== CAROUSEL ========== */
.vb19-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 0 0 var(--vb19-radius) var(--vb19-radius);
  margin-bottom: 1.5rem;
}

.vb19-slides-wrapper {
  position: relative;
  width: 100%;
}

.vb19-slide {
  display: none;
  width: 100%;
  cursor: pointer;
}

.vb19-slide-active {
  display: block;
}

.vb19-slide img {
  width: 100%;
  height: auto;
  min-height: 180px;
  object-fit: cover;
}

.vb19-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
}

.vb19-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.2s ease;
}

.vb19-dot-active {
  background: var(--vb19-primary);
  transform: scale(1.3);
}

/* ========== SECTION TITLES ========== */
.vb19-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--vb19-white);
  margin: 2rem 0 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--vb19-primary);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.vb19-section-title i,
.vb19-section-title .material-icons {
  color: var(--vb19-warm-orange);
  font-size: 2rem;
}

/* ========== GAME GRID ========== */
.vb19-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.vb19-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s ease;
  text-align: center;
}

.vb19-game-item:hover {
  transform: translateY(-3px);
}

.vb19-game-item:active {
  transform: scale(0.95);
}

.vb19-game-icon {
  width: 70px;
  height: 70px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 0.4rem;
  border: 2px solid var(--vb19-border);
  transition: border-color 0.2s ease;
}

.vb19-game-item:hover .vb19-game-icon {
  border-color: var(--vb19-primary);
}

.vb19-game-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.vb19-game-name {
  font-size: 1rem;
  color: var(--vb19-light-gray);
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

/* ========== CATEGORY TABS ========== */
.vb19-category-label {
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 1.1rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--vb19-dark-teal), var(--vb19-primary));
  color: var(--vb19-white);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ========== CONTENT CARDS ========== */
.vb19-card {
  background: var(--vb19-card-bg);
  border-radius: var(--vb19-radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--vb19-border);
}

.vb19-card h3 {
  font-size: 1.5rem;
  color: var(--vb19-primary);
  margin-bottom: 0.8rem;
}

.vb19-card p {
  font-size: 1.3rem;
  color: var(--vb19-light-gray);
  line-height: 1.8rem;
  margin-bottom: 0.8rem;
}

/* ========== PROMO BUTTONS ========== */
.vb19-promo-btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--vb19-primary), var(--vb19-dark-teal));
  color: var(--vb19-white);
  border-radius: 25px;
  font-size: 1.4rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-align: center;
  transition: all 0.2s ease;
  box-shadow: 0 3px 10px rgba(77, 182, 172, 0.3);
}

.vb19-promo-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(77, 182, 172, 0.5);
}

.vb19-promo-btn:active {
  transform: scale(0.97);
}

.vb19-promo-btn-orange {
  background: linear-gradient(135deg, var(--vb19-warm-orange), #FF8A65);
}

.vb19-promo-link {
  color: var(--vb19-primary);
  font-weight: 600;
  cursor: pointer;
  border-bottom: 1px dashed var(--vb19-primary);
}

.vb19-promo-link:hover {
  color: var(--vb19-warm-orange);
  border-bottom-color: var(--vb19-warm-orange);
}

/* ========== STEPS ========== */
.vb19-steps {
  counter-reset: vb19-step;
}

.vb19-step {
  position: relative;
  padding: 1.2rem 1.2rem 1.2rem 3.5rem;
  background: var(--vb19-card-bg);
  border-radius: var(--vb19-radius);
  margin-bottom: 0.8rem;
  border-left: 3px solid var(--vb19-primary);
}

.vb19-step::before {
  counter-increment: vb19-step;
  content: counter(vb19-step);
  position: absolute;
  left: 0.8rem;
  top: 1.2rem;
  width: 2rem;
  height: 2rem;
  background: var(--vb19-primary);
  color: var(--vb19-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.vb19-step h4 {
  font-size: 1.3rem;
  color: var(--vb19-white);
  margin-bottom: 0.3rem;
}

.vb19-step p {
  font-size: 1.2rem;
  color: var(--vb19-light-gray);
}

/* ========== FAQ ========== */
.vb19-faq-item {
  background: var(--vb19-card-bg);
  border-radius: var(--vb19-radius);
  margin-bottom: 0.8rem;
  overflow: hidden;
  border: 1px solid var(--vb19-border);
}

.vb19-faq-q {
  padding: 1.2rem;
  font-weight: 600;
  color: var(--vb19-white);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.vb19-faq-q i {
  color: var(--vb19-warm-orange);
}

.vb19-faq-a {
  padding: 0 1.2rem 1.2rem;
  color: var(--vb19-light-gray);
  font-size: 1.2rem;
  line-height: 1.6rem;
}

/* ========== FEATURES GRID ========== */
.vb19-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.vb19-feature-card {
  background: var(--vb19-card-bg);
  border-radius: var(--vb19-radius);
  padding: 1.2rem;
  text-align: center;
  border: 1px solid var(--vb19-border);
  transition: border-color 0.2s ease;
}

.vb19-feature-card:hover {
  border-color: var(--vb19-primary);
}

.vb19-feature-card i,
.vb19-feature-card .material-icons {
  font-size: 2.8rem;
  color: var(--vb19-primary);
  margin-bottom: 0.8rem;
}

.vb19-feature-card h4 {
  font-size: 1.2rem;
  color: var(--vb19-white);
  margin-bottom: 0.4rem;
}

.vb19-feature-card p {
  font-size: 1.1rem;
  color: var(--vb19-light-gray);
}

/* ========== TESTIMONIALS ========== */
.vb19-testimonial {
  background: var(--vb19-card-bg);
  border-radius: var(--vb19-radius);
  padding: 1.2rem;
  margin-bottom: 1rem;
  border-left: 3px solid var(--vb19-warm-orange);
}

.vb19-testimonial-text {
  font-size: 1.2rem;
  color: var(--vb19-light-gray);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.vb19-testimonial-author {
  font-size: 1.1rem;
  color: var(--vb19-primary);
  font-weight: 600;
}

/* ========== WINNERS SHOWCASE ========== */
.vb19-winner-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem;
  background: var(--vb19-card-bg);
  border-radius: var(--vb19-radius);
  margin-bottom: 0.6rem;
}

.vb19-winner-item img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--vb19-warm-orange);
}

.vb19-winner-info {
  flex: 1;
}

.vb19-winner-name {
  font-size: 1.2rem;
  color: var(--vb19-white);
  font-weight: 600;
}

.vb19-winner-amount {
  font-size: 1.3rem;
  color: var(--vb19-warm-orange);
  font-weight: 700;
}

.vb19-winner-game {
  font-size: 1rem;
  color: var(--vb19-light-gray);
}

/* ========== FOOTER ========== */
.vb19-footer {
  background: linear-gradient(180deg, var(--vb19-card-bg) 0%, #0a0a1a 100%);
  padding: 2rem 1rem 6rem;
  margin-top: 2rem;
  border-top: 1px solid var(--vb19-border);
}

.vb19-footer-brand {
  text-align: center;
  margin-bottom: 1.5rem;
}

.vb19-footer-brand p {
  font-size: 1.2rem;
  color: var(--vb19-light-gray);
  line-height: 1.6rem;
  max-width: 350px;
  margin: 0 auto;
}

.vb19-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.vb19-footer-links a {
  padding: 0.5rem 1rem;
  background: rgba(77, 182, 172, 0.1);
  border-radius: 15px;
  font-size: 1.1rem;
  color: var(--vb19-primary);
  transition: all 0.2s ease;
}

.vb19-footer-links a:hover {
  background: rgba(77, 182, 172, 0.2);
}

.vb19-footer-copyright {
  text-align: center;
  font-size: 1rem;
  color: rgba(176, 176, 208, 0.5);
}

/* ========== BOTTOM NAV ========== */
.vb19-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: 60px;
  background: linear-gradient(135deg, #0a0a1a 0%, #1A1A3E 100%);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  border-top: 1px solid var(--vb19-border);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

.vb19-bottom-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 52px;
  background: none;
  border: none;
  color: var(--vb19-light-gray);
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0.4rem;
  border-radius: 8px;
}

.vb19-bottom-btn:hover,
.vb19-bottom-btn:active {
  color: var(--vb19-primary);
  background: rgba(77, 182, 172, 0.1);
}

.vb19-bottom-btn i,
.vb19-bottom-btn .material-icons {
  font-size: 22px;
  margin-bottom: 2px;
}

.vb19-bottom-btn span {
  font-size: 1rem;
  white-space: nowrap;
}

.vb19-bottom-btn-active {
  color: var(--vb19-primary);
}

.vb19-bottom-btn-active i,
.vb19-bottom-btn-active .material-icons {
  color: var(--vb19-warm-orange);
}

/* ========== UTILITIES ========== */
.vb19-text-center {
  text-align: center;
}

.vb19-mt-1 { margin-top: 1rem; }
.vb19-mt-2 { margin-top: 2rem; }
.vb19-mb-1 { margin-bottom: 1rem; }
.vb19-mb-2 { margin-bottom: 2rem; }

.vb19-highlight {
  color: var(--vb19-warm-orange);
  font-weight: 600;
}

.vb19-divider {
  height: 1px;
  background: var(--vb19-border);
  margin: 1.5rem 0;
}

/* ========== RESPONSIVE ========== */
@media (min-width: 769px) {
  .vb19-bottom-nav {
    display: none;
  }
  .vb19-footer {
    padding-bottom: 2rem;
  }
}

@media (max-width: 768px) {
  .vb19-main {
    padding-bottom: 80px;
  }
}

/* ========== PAGE-SPECIFIC: HELP PAGES ========== */
.vb19-help-hero {
  background: linear-gradient(135deg, var(--vb19-dark-teal) 0%, var(--vb19-bg) 100%);
  padding: 2rem 1rem;
  text-align: center;
  border-radius: 0 0 var(--vb19-radius) var(--vb19-radius);
  margin-bottom: 1.5rem;
}

.vb19-help-hero h1 {
  font-size: 2rem;
  color: var(--vb19-white);
  margin-bottom: 0.5rem;
}

.vb19-help-hero p {
  font-size: 1.3rem;
  color: var(--vb19-light-gray);
}

/* ========== BADGE ========== */
.vb19-badge {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
}

.vb19-badge-hot {
  background: linear-gradient(135deg, #FF5252, #FF1744);
  color: white;
}

.vb19-badge-new {
  background: linear-gradient(135deg, var(--vb19-primary), var(--vb19-dark-teal));
  color: white;
}

/* ========== CTA SECTION ========== */
.vb19-cta-section {
  background: linear-gradient(135deg, var(--vb19-dark-teal), var(--vb19-primary));
  padding: 2rem 1.5rem;
  border-radius: var(--vb19-radius);
  text-align: center;
  margin: 2rem 0;
}

.vb19-cta-section h3 {
  font-size: 1.6rem;
  color: var(--vb19-white);
  margin-bottom: 0.8rem;
}

.vb19-cta-section p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1.2rem;
}