/* ============================================
   MAIN STYLES - Reusable Components
   Keep minimal, use CSS variables from variables.css
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

/* Custom Styled Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-primary);
}

/* ============================================
   TYPOGRAPHY & UTILITIES
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
}

h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--color-accent-pink);
  text-shadow: 0 0 8px rgba(255, 51, 102, 0.3);
}

/* ============================================
   LAYOUT - Container & Sections
   ============================================ */

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

.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

.section-title {
  text-align: center;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ffffff 30%, var(--color-accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Asymmetric background shapes */
.section::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.05) 0%, transparent 70%);
  top: 10%;
  left: -150px;
  pointer-events: none;
  z-index: 1;
}

.section:nth-child(even)::before {
  left: auto;
  right: -150px;
  background: radial-gradient(circle, rgba(255, 51, 102, 0.04) 0%, transparent 70%);
}

/* ============================================
   COMPONENTS - Header & Navigation
   ============================================ */

header {
  background-color: rgba(6, 8, 10, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition-normal);
}

header.scrolled {
  padding: var(--spacing-xs) 0;
  background-color: rgba(6, 8, 10, 0.9);
  box-shadow: var(--shadow-md);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.logo-image {
  width: 50px;
  height: 50px;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.logo:hover .logo-image {
  transform: rotate(10deg) scale(1.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-title {
  font-family: 'Outfit', sans-serif;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: 1.5px;
  color: var(--text-primary);
}

.logo-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-sm);
}

nav a {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  border-bottom: none;
}

nav a:hover,
nav a.active {
  color: var(--color-accent-cyan);
  background-color: rgba(255, 255, 255, 0.05);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
}

.hamburger span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-normal);
  transform-origin: left;
}

/* Hamburger animations when menu is active */
.hamburger.active span:first-child {
  transform: rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:last-child {
  transform: rotate(-45deg);
}

/* ============================================
   COMPONENTS - Hero Section
   ============================================ */

.hero {
  position: relative;
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  text-align: center;
  background: radial-gradient(circle at center, rgba(16, 24, 32, 0.8) 0%, var(--color-bg) 100%);
  overflow: hidden;
}

/* Cyber grid background */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center;
  mask-image: radial-gradient(circle, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle, black 30%, transparent 80%);
  opacity: 0.8;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

.hero-video {
  margin: var(--spacing-xl) auto 0;
  max-width: 1000px;
  position: relative;
  border-radius: var(--radius-xl);
  padding: 6px;
  background: linear-gradient(135deg, var(--color-accent-cyan) 0%, var(--color-accent-pink) 100%);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.25);
}

.hero-video video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: calc(var(--radius-xl) - 4px);
  display: block;
  object-fit: cover;
  background-color: #000;
}

.video-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(6, 8, 10, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 1px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.video-tag::before {
  content: '';
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-green);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

/* ============================================
   COMPONENTS - Buttons & Tags
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  border-radius: var(--radius-pill);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  z-index: -1;
  transition: opacity var(--transition-normal);
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-secondary);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4), 0 0 40px rgba(255, 51, 102, 0.2);
  color: #fff;
}

.btn:hover::after {
  opacity: 1;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary::before,
.btn-secondary::after {
  display: none;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--gradient-secondary);
  color: #fff;
}

.btn-accent::before {
  background: var(--gradient-secondary);
}

.btn-accent::after {
  background: var(--gradient-primary);
}

.btn-accent:hover {
  box-shadow: 0 8px 20px rgba(255, 51, 102, 0.35);
}

.btn-shopee {
  background: #ffffff;
  color: #06080a;
  border: 1px solid #ffffff;
}

.btn-shopee::before,
.btn-shopee::after {
  display: none;
}

.btn-shopee:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.6);
  color: #06080a;
  transform: translateY(-2px);
}

.btn-tiktok {
  background: #000000;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-tiktok::before,
.btn-tiktok::after {
  display: none;
}

.btn-tiktok:hover {
  background: #111111;
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.45), 0 0 20px rgba(255, 51, 102, 0.45);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--spacing-xs);
  object-fit: contain;
}

.tag-pill {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   COMPONENTS - Glass Cards
   ============================================ */

.card {
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 2;
}

/* Glowing top border on hover */
.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  background: var(--color-surface-hover);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-md), 0 0 25px rgba(0, 240, 255, 0.1), 0 0 15px rgba(255, 51, 102, 0.1);
}

.card:hover::after {
  opacity: 1;
}

.card-dark {
  background: rgba(10, 12, 16, 0.85);
  border-color: rgba(255, 255, 255, 0.05);
}

.card-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

/* Custom premium list items */
.card ul {
  list-style: none;
  padding-left: 0;
  margin-top: var(--spacing-md);
  display: grid;
  gap: var(--spacing-xs);
}

.card li {
  position: relative;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

.card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-cyan);
  box-shadow: 0 0 8px var(--color-accent-cyan);
}

/* ============================================
   GRID SYSTEM
   ============================================ */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   COMPONENTS - Image Carousel
   ============================================ */

.carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.carousel-viewport {
  overflow: hidden;
  width: 100%;
  max-width: 1000px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.carousel-track {
  display: flex;
  transition: transform var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-item {
  min-width: 100%;
  flex: 0 0 100%;
  position: relative;
}

.carousel-item img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.carousel-button {
  background-color: rgba(6, 8, 10, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  color: var(--text-primary);
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 3;
}

.carousel-button:hover {
  background-color: var(--color-accent-cyan);
  color: var(--color-bg);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
  transform: scale(1.05);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: var(--spacing-md);
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--text-muted);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.carousel-dot.active {
  width: 28px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent-cyan);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

/* ============================================
   COMPONENTS - Marquee Customer Review Carousel
   ============================================ */

.review-carousel {
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: hidden;
  padding: var(--spacing-md) 0;
  pointer-events: auto;
  cursor: grab;
}

.review-carousel:active {
  cursor: grabbing;
}

.review-card {
  min-width: 340px;
  max-width: 360px;
  flex: 0 0 auto;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.review-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  font-size: 0.95rem;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
}

.review-meta {
  display: flex;
  flex-direction: column;
}

.review-name {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

.review-rating {
  color: #ffb800;
  font-size: 0.8rem;
  letter-spacing: 1px;
}

.review-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  font-style: italic;
}

/* Rating Overview Grid for reviews page */
.rating-overview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.rating-big-number {
  text-align: center;
}

.rating-big-number h2 {
  font-size: 4rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.rating-bars {
  flex-grow: 1;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rating-bar-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.rating-bar-bg {
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-pill);
  flex-grow: 1;
  overflow: hidden;
}

.rating-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-pill);
}

/* ============================================
   COMPONENTS - FAQ Accordions
   ============================================ */

.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

details.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-normal);
}

details.faq-item[open] {
  background: var(--color-surface-hover);
  border-color: var(--color-border-glow);
  box-shadow: var(--shadow-glow-cyan);
}

details.faq-item summary {
  list-style: none;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-xs) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary::after {
  content: '+';
  font-size: var(--font-size-lg);
  color: var(--color-accent-cyan);
  transition: transform var(--transition-normal);
}

details.faq-item[open] summary::after {
  transform: rotate(45deg);
  content: '+';
}

details.faq-item p {
  padding-top: var(--spacing-sm);
  margin-bottom: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: var(--font-size-sm);
}

/* ============================================
   COMPONENTS - Footer
   ============================================ */

footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-2xl);
  position: relative;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--text-primary);
  font-family: var(--font-family-heading);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.footer-section h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 40px;
  height: 2.5px;
  background: var(--gradient-primary);
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section a {
  color: var(--text-secondary);
}

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

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.social-links a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.social-links a:hover {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ============================================
   COMPONENTS - Contact forms
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

input,
textarea,
select {
  width: 100%;
  padding: 12px var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  transition: all var(--transition-normal);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.25);
}

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

/* ============================================
   MOTION & ANIMATIONS
   ============================================ */

/* Scroll Reveal Classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

@keyframes pulse {
  0% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(0, 255, 102, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(0, 255, 102, 0);
  }
  100% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(0, 255, 102, 0);
  }
}

/* ============================================
   FLOATING PROGRESS SCROLL TO TOP
   ============================================ */

.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: -60px; /* Hidden initially */
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(6, 8, 10, 0.85);
  border: 1px solid var(--color-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
}

.scroll-top-btn.visible {
  right: 30px;
}

.scroll-top-btn:hover {
  transform: scale(1.05);
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

.scroll-top-btn svg.progress-ring {
  position: absolute;
  top: -1px;
  left: -1px;
  transform: rotate(-90deg);
}

.scroll-top-btn svg.progress-ring circle {
  fill: transparent;
  stroke: var(--color-accent-cyan);
  stroke-width: 2.5;
  stroke-dasharray: 141; /* Circumference of circle 2 * pi * r = 2 * 3.14 * 22.5 */
  stroke-dashoffset: 141;
  transition: stroke-dashoffset 10ms linear;
}

.scroll-top-btn span.arrow {
  color: var(--color-accent-cyan);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
}

/* Background grid styling for map HUD screen */
.map-hud-frame {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 8px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(255, 51, 102, 0.15) 100%);
  box-shadow: var(--shadow-md), 0 0 25px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--color-border);
}

.map-hud-frame::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 15px;
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--color-accent-cyan);
  border-left: 2px solid var(--color-accent-cyan);
  pointer-events: none;
}

.map-hud-frame::after {
  content: '';
  position: absolute;
  bottom: 15px;
  right: 15px;
  width: 10px;
  height: 10px;
  border-bottom: 2px solid var(--color-accent-pink);
  border-right: 2px solid var(--color-accent-pink);
  pointer-events: none;
}