/* ============================================
   DIAMOND IPTV — Global Design System
   ============================================ */

/* Google Fonts — Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ──────────────────────────────────────────
   CSS Custom Properties
   ────────────────────────────────────────── */
:root {
  /* Colors */
  --color-bg-primary: #0a0e17;
  --color-bg-secondary: #121829;
  --color-bg-tertiary: #0f1322;
  --color-bg-card: #1a1f35;
  --color-bg-card-hover: #222845;
  --color-border: #1e2540;
  --color-border-light: #2a3050;
  --color-accent: #e8192c;
  --color-accent-hover: #ff2d42;
  --color-accent-dark: #c01020;
  --color-accent-glow: rgba(232, 25, 44, 0.35);
  --color-text: #ffffff;
  --color-text-secondary: #b0b8c9;
  --color-text-muted: #6b7280;
  --color-star: #fbbf24;
  --color-success: #22c55e;
  --color-overlay: rgba(10, 14, 23, 0.85);

  /* Shorthand Aliases (for page-level CSS compatibility) */
  --bg-primary: var(--color-bg-primary);
  --bg-secondary: var(--color-bg-secondary);
  --bg-card: var(--color-bg-card);
  --border: var(--color-border);
  --border-color: var(--color-border);
  --accent: var(--color-accent);
  --text-primary: var(--color-text);
  --text-color: var(--color-text);
  --text-secondary: var(--color-text-secondary);
  --text-muted: var(--color-text-muted);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 2rem;
  --fs-4xl: 2.5rem;
  --fs-5xl: 3.25rem;
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  --fw-black: 900;

  /* Spacing */
  --sp-xs: 0.25rem;
  --sp-sm: 0.5rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-xl: 2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  --sp-4xl: 6rem;
  --sp-5xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 20px var(--color-accent-glow);
  --shadow-glow-lg: 0 0 40px var(--color-accent-glow);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);

  /* Transitions */
  --tr-fast: 0.15s ease;
  --tr-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --tr-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --tr-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ──────────────────────────────────────────
   CSS Reset
   ────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

body.nav-open {
  overflow: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

::selection {
  background: var(--color-accent);
  color: #fff;
}

/* ──────────────────────────────────────────
   Typography
   ────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: var(--fw-bold);
  color: var(--color-text);
}

h1 { font-size: var(--fs-5xl); font-weight: var(--fw-extrabold); }
h2 { font-size: var(--fs-3xl); font-weight: var(--fw-bold); }
h3 { font-size: var(--fs-2xl); font-weight: var(--fw-semibold); }
h4 { font-size: var(--fs-xl); font-weight: var(--fw-semibold); }
h5 { font-size: var(--fs-lg); font-weight: var(--fw-medium); }

p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-text); }
.text-center { text-align: center; }
.text-secondary { color: var(--color-text-secondary); }
.text-gradient { background: linear-gradient(135deg, #e8192c, #ff6b6b); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ──────────────────────────────────────────
   Layout Utilities
   ────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-xl);
}

.section {
  padding: 5rem 0;
  position: relative;
}

.section--alt {
  background-color: var(--color-bg-secondary);
}

.section__header {
  text-align: center;
  margin-bottom: var(--sp-3xl);
}

.section__header h2 {
  margin-bottom: var(--sp-md);
}

.section__header p {
  max-width: 600px;
  margin: 0 auto;
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: var(--sp-xs) var(--sp-lg);
  background: rgba(232, 25, 44, 0.1);
  border: 1px solid rgba(232, 25, 44, 0.25);
  border-radius: var(--radius-full);
  color: var(--color-accent);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-lg);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--sp-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
  align-items: center;
}

.flex-wrap { flex-wrap: wrap; }
.flex-col { flex-direction: column; }
.flex-center { justify-content: center; align-items: center; }
.gap-sm { gap: var(--sp-sm); }
.gap-md { gap: var(--sp-md); }
.gap-lg { gap: var(--sp-lg); }
.gap-xl { gap: var(--sp-xl); }

/* ──────────────────────────────────────────
   Buttons
   ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: 0.8rem 1.75rem;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  transition: all var(--tr-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-glow-lg);
  transform: translateY(-2px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(232, 25, 44, 0.08);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: var(--fs-base);
  border-radius: var(--radius-lg);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--fs-xs);
}

.btn--block {
  width: 100%;
}

/* ──────────────────────────────────────────
   Cards
   ────────────────────────────────────────── */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-xl);
  transition: all var(--tr-base);
  position: relative;
}

.card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.card--glass {
  background: rgba(26, 31, 53, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.card--accent {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.card--accent:hover {
  box-shadow: var(--shadow-glow-lg);
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 25, 44, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: var(--sp-lg);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-sm);
}

.card__text {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

/* ──────────────────────────────────────────
   Icons & Stats
   ────────────────────────────────────────── */
.glow-number {
  color: var(--color-accent);
  font-weight: 800;
  text-shadow: 0 0 20px rgba(232, 25, 44, 0.4);
}

.icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: all var(--tr-base);
}
.icon-circle--red { background: rgba(232, 25, 44, 0.12); color: var(--color-accent); border: 1px solid rgba(232, 25, 44, 0.2); }
.icon-circle--blue { background: rgba(59, 130, 246, 0.12); color: #3b82f6; border: 1px solid rgba(59, 130, 246, 0.2); }
.icon-circle--green { background: rgba(34, 197, 94, 0.12); color: #22c55e; border: 1px solid rgba(34, 197, 94, 0.2); }
.icon-circle--purple { background: rgba(168, 85, 247, 0.12); color: #a855f7; border: 1px solid rgba(168, 85, 247, 0.2); }
.icon-circle--orange { background: rgba(249, 115, 22, 0.12); color: #f97316; border: 1px solid rgba(249, 115, 22, 0.2); }
.icon-circle--cyan { background: rgba(6, 182, 212, 0.12); color: #06b6d4; border: 1px solid rgba(6, 182, 212, 0.2); }

/* ──────────────────────────────────────────
   Trust Bar
   ────────────────────────────────────────── */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  padding: 1.5rem 0;
}
.trust-bar__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}
.trust-bar__item svg, .trust-bar__item i {
  color: var(--color-accent);
  font-size: 1.1rem;
}

/* ──────────────────────────────────────────
   Badges
   ────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-xs);
  padding: 0.25rem 0.75rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge--accent {
  background: var(--color-accent);
  color: #fff;
}

.badge--outline {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.badge--success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

/* ──────────────────────────────────────────
   Star Rating
   ────────────────────────────────────────── */
.stars {
  display: inline-flex;
  gap: 2px;
  color: var(--color-star);
}

.stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ──────────────────────────────────────────
   Dividers & Decorations
   ────────────────────────────────────────── */
.divider {
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  margin: var(--sp-lg) auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-accent), #ff6b7a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow-line {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-accent-glow),
    transparent
  );
}

/* ──────────────────────────────────────────
   Form Elements
   ────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--sp-lg);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1.15rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--fs-base);
  transition: border-color var(--tr-fast), box-shadow var(--tr-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(232, 25, 44, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

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

/* ──────────────────────────────────────────
   FAQ Accordion
   ────────────────────────────────────────── */
.faq__item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-md);
  overflow: hidden;
  transition: border-color var(--tr-base);
}

.faq__item.active {
  border-color: var(--color-accent);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-lg) var(--sp-xl);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  transition: color var(--tr-fast);
}

.faq__question:hover {
  color: var(--color-accent);
}

.faq__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--tr-base);
  color: var(--color-text-muted);
}

.faq__item.active .faq__icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--tr-slow), padding var(--tr-slow);
}

.faq__item.active .faq__answer {
  max-height: 500px;
  padding: 0 var(--sp-xl) var(--sp-lg);
}

.faq__answer p {
  font-size: var(--fs-sm);
  line-height: 1.7;
}

/* ──────────────────────────────────────────
   Keyframe Animations
   ────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px var(--color-accent-glow); }
  50% { box-shadow: 0 0 40px var(--color-accent-glow), 0 0 60px rgba(232, 25, 44, 0.15); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Reveal Animation Classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered reveal delays */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ──────────────────────────────────────────
   Background Patterns
   ────────────────────────────────────────── */
.bg-pattern {
  position: relative;
}

.bg-pattern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(232, 25, 44, 0.06), transparent),
    radial-gradient(ellipse 500px 300px at 80% 20%, rgba(30, 40, 80, 0.4), transparent);
  pointer-events: none;
  z-index: 0;
}

.bg-pattern > * {
  position: relative;
  z-index: 1;
}

/* ──────────────────────────────────────────
   Scrollbar Styling
   ────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ──────────────────────────────────────────
   Accessibility
   ────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ──────────────────────────────────────────
   Mobile Overlay
   ────────────────────────────────────────── */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--tr-base);
  backdrop-filter: blur(4px);
}

.mobile-overlay.active {
  display: block;
  opacity: 1;
}