/* ============================================================
   5G Internet Experience & Data Usage Guide
   Main Stylesheet — Modern / Experiential Design
   Colors: Gradient Blue + Cyan + White
   ============================================================ */

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

/* ── CSS Variables ── */
:root {
  --primary:       #0057FF;
  --primary-dark:  #003DBD;
  --cyan:          #00C6FF;
  --cyan-light:    #7EEDFF;
  --cyan-dark:     #0099CC;
  --white:         #FFFFFF;
  --off-white:     #F4F9FF;
  --light-gray:    #E8F1FF;
  --mid-gray:      #8A9BBE;
  --dark:          #0A1628;
  --dark-soft:     #0F2040;
  --text-body:     #1E2D4E;
  --text-muted:    #5A6E8C;

  --grad-hero:     linear-gradient(135deg, #0A1628 0%, #0F2A60 40%, #0057FF 80%, #00C6FF 100%);
  --grad-section:  linear-gradient(135deg, #0057FF 0%, #00C6FF 100%);
  --grad-card:     linear-gradient(145deg, #ffffff 0%, #eaf4ff 100%);
  --grad-cta:      linear-gradient(90deg, #0057FF, #00C6FF);
  --grad-subtle:   linear-gradient(180deg, #F4F9FF 0%, #E8F1FF 100%);

  --shadow-sm:     0 2px 12px rgba(0, 87, 255, 0.08);
  --shadow-md:     0 8px 32px rgba(0, 87, 255, 0.15);
  --shadow-lg:     0 20px 60px rgba(0, 87, 255, 0.2);
  --shadow-glow:   0 0 40px rgba(0, 198, 255, 0.3);

  --radius-sm:     8px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --radius-xl:     40px;
  --radius-pill:   999px;

  --font-primary:  'Space Grotesk', 'Inter', sans-serif;
  --font-body:     'Inter', sans-serif;

  --transition:    all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text-body);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ── Utility ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--wide {
  max-width: 1400px;
}

.container--narrow {
  max-width: 800px;
}

.section-pad {
  padding: 100px 0;
}

.section-pad--lg {
  padding: 140px 0;
}

.section-pad--sm {
  padding: 60px 0;
}

.text-center { text-align: center; }
.text-white  { color: var(--white) !important; }
.text-cyan   { color: var(--cyan) !important; }
.text-primary{ color: var(--primary) !important; }

.bg-dark      { background: var(--dark); }
.bg-dark-soft { background: var(--dark-soft); }
.bg-white     { background: var(--white); }
.bg-subtle    { background: var(--grad-subtle); }
.bg-grad      { background: var(--grad-section); }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm       { gap: 12px; }
.gap-md       { gap: 24px; }
.gap-lg       { gap: 40px; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  line-height: 1.2;
  font-weight: 700;
  color: var(--dark);
}

.display-1 {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.display-2 {
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 600;
}

.h4 {
  font-size: 1.2rem;
  font-weight: 600;
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 400;
  line-height: 1.75;
  color: var(--text-muted);
}

.lead--white {
  color: rgba(255,255,255,0.8);
}

.label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.label--dark {
  color: var(--primary);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: var(--transition);
}

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

.btn-primary {
  background: var(--grad-cta);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0, 87, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 87, 255, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-outline--dark {
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline--dark:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border-color: rgba(255,255,255,0.15);
  backdrop-filter: blur(12px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 44px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.9rem;
}

.btn-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: var(--transition);
}

.nav--scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 32px;
  max-width: 1400px;
  margin: 0 auto;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  text-decoration: none;
}

.nav__logo-icon {
  width: 38px;
  height: 38px;
  background: var(--grad-cta);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 2px 12px rgba(0, 198, 255, 0.3);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  padding: 8px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile nav */
@media (max-width: 960px) {
  .nav__links,
  .nav__cta .btn-outline {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px 24px 28px;
    border-top: 1px solid rgba(255,255,255,0.08);
  }

  .nav__mobile.open {
    display: block;
  }

  .nav__mobile .nav__link {
    display: block;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 1rem;
  }

  .nav__mobile .btn {
    margin-top: 16px;
    width: 100%;
    justify-content: center;
  }
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--grad-hero);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,198,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,198,255,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  from { transform: translate(0, 0); }
  to   { transform: translate(60px, 60px); }
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
}

.hero__orb--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,87,255,0.35) 0%, transparent 70%);
  top: -200px; right: -100px;
  animation-delay: 0s;
}

.hero__orb--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,198,255,0.25) 0%, transparent 70%);
  bottom: -100px; left: 10%;
  animation-delay: -3s;
}

.hero__orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,198,255,0.2) 0%, transparent 70%);
  top: 40%; left: 40%;
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -20px) scale(1.05); }
  66%       { transform: translate(-20px, 15px) scale(0.97); }
}

.hero__particles {
  position: absolute;
  inset: 0;
}

.hero__particle {
  position: absolute;
  width: 3px; height: 3px;
  background: var(--cyan);
  border-radius: 50%;
  animation: particleFloat linear infinite;
  opacity: 0.5;
}

@keyframes particleFloat {
  from { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.4; }
  to   { transform: translateY(-100px) scale(1); opacity: 0; }
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 120px 0 80px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(0, 198, 255, 0.12);
  border: 1px solid rgba(0, 198, 255, 0.3);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cyan-light);
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}

.hero__tag-dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.5); opacity: 0.6; }
}

.hero__title {
  color: var(--white);
  margin-bottom: 24px;
}

.hero__title .highlight {
  background: linear-gradient(90deg, var(--cyan), var(--cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 520px;
}

.hero__stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero__stat-value {
  font-family: var(--font-primary);
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  background: linear-gradient(90deg, var(--white), var(--cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
  margin-top: 2px;
}

.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 5G Signal Visualization */
.signal-viz {
  position: relative;
  width: 420px;
  height: 420px;
}

.signal-viz__core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 100px; height: 100px;
  background: var(--grad-cta);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  box-shadow: 0 0 40px rgba(0,198,255,0.5), 0 0 80px rgba(0,87,255,0.3);
  z-index: 3;
}

.signal-viz__ring {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1.5px solid;
  animation: ringExpand 3s ease-out infinite;
}

.signal-viz__ring--1 {
  width: 160px; height: 160px;
  border-color: rgba(0,198,255,0.5);
  animation-delay: 0s;
}

.signal-viz__ring--2 {
  width: 240px; height: 240px;
  border-color: rgba(0,198,255,0.35);
  animation-delay: 0.6s;
}

.signal-viz__ring--3 {
  width: 320px; height: 320px;
  border-color: rgba(0,198,255,0.2);
  animation-delay: 1.2s;
}

.signal-viz__ring--4 {
  width: 400px; height: 400px;
  border-color: rgba(0,198,255,0.1);
  animation-delay: 1.8s;
}

@keyframes ringExpand {
  0%   { transform: translate(-50%, -50%) scale(0.8); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(1.1); opacity: 0; }
}

.signal-viz__dot {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan);
  animation: dotOrbit 4s linear infinite;
}

@keyframes dotOrbit {
  from { transform: rotate(0deg) translateX(160px) rotate(0deg); }
  to   { transform: rotate(360deg) translateX(160px) rotate(-360deg); }
}

.signal-viz__dot--2 {
  animation-duration: 6s;
  animation-delay: -2s;
  width: 8px; height: 8px;
  background: var(--primary);
}

.signal-viz__card {
  position: absolute;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  white-space: nowrap;
}

.signal-viz__card--1 {
  top: 40px; right: -20px;
  animation: floatCard 5s ease-in-out infinite;
}

.signal-viz__card--2 {
  bottom: 60px; left: -30px;
  animation: floatCard 5s ease-in-out infinite;
  animation-delay: -2.5s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

.signal-viz__card-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
  margin-bottom: 3px;
}

.signal-viz__card-value {
  font-family: var(--font-primary);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}

.signal-viz__card-bar {
  width: 80px;
  height: 4px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  margin-top: 8px;
  overflow: hidden;
}

.signal-viz__card-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--primary));
  border-radius: 2px;
  animation: fillGrow 3s ease-in-out infinite;
}

@keyframes fillGrow {
  0%, 100% { width: 80%; }
  50%       { width: 95%; }
}

/* ── Section Headers ── */
.section-header {
  margin-bottom: 64px;
}

.section-header--center {
  text-align: center;
}

.section-header .label {
  display: block;
  margin-bottom: 16px;
}

.section-header .h2 {
  margin-bottom: 20px;
}

.section-header .lead {
  max-width: 640px;
}

.section-header--center .lead {
  margin: 0 auto;
}

/* ── Feature Cards ── */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,87,255,0.06);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-cta);
  opacity: 0;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,87,255,0.12);
}

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

.card__icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, rgba(0,87,255,0.1), rgba(0,198,255,0.15));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

.card:hover .card__icon {
  background: var(--grad-cta);
  box-shadow: 0 8px 24px rgba(0,87,255,0.3);
}

.card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.card__body {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 0.95rem;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.card__link:hover {
  gap: 12px;
  color: var(--cyan-dark);
}

/* Card dark variant */
.card--dark {
  background: var(--dark-soft);
  border-color: rgba(0,198,255,0.1);
  color: var(--white);
}

.card--dark .card__title {
  color: var(--white);
}

.card--dark .card__body {
  color: rgba(255,255,255,0.65);
}

.card--dark .card__icon {
  background: rgba(0,198,255,0.12);
}

.card--dark:hover .card__icon {
  background: var(--grad-cta);
}

/* Card gradient variant */
.card--grad {
  background: var(--grad-cta);
  border: none;
  color: var(--white);
}

.card--grad .card__title,
.card--grad .card__body {
  color: var(--white);
}

.card--grad .card__icon {
  background: rgba(255,255,255,0.15);
}

/* ── Grid Layouts ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-3,
  .grid-2,
  .grid-4 { grid-template-columns: 1fr; }
}

/* ── Split Sections ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.split--reverse .split__visual {
  order: -1;
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .split--reverse .split__visual {
    order: unset;
  }
}

.split__content .label {
  display: block;
  margin-bottom: 16px;
}

.split__content .h2 {
  margin-bottom: 20px;
}

.split__content .lead {
  margin-bottom: 32px;
}

.split__visual {
  position: relative;
}

.split__img-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.split__img-wrap img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* ── Feature List ── */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.feature-item__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, rgba(0,87,255,0.1), rgba(0,198,255,0.15));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.feature-item__title {
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
  font-size: 1rem;
}

.feature-item__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Stats Section ── */
.stats-band {
  background: var(--dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.stats-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-hero);
  opacity: 0.7;
}

.stats-band__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item__value {
  font-family: var(--font-primary);
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--white), var(--cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-item__label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

.stat-item__sub {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  margin-top: 4px;
}

@media (max-width: 768px) {
  .stats-band__inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Scroll Story Blocks ── */
.story-block {
  position: relative;
  padding: 120px 0;
}

.story-block__number {
  position: absolute;
  top: 40px; left: 0;
  font-family: var(--font-primary);
  font-size: 8rem;
  font-weight: 900;
  color: rgba(0,87,255,0.04);
  line-height: 1;
  user-select: none;
  pointer-events: none;
}

/* ── CTA Section ── */
.cta-section {
  position: relative;
  padding: 120px 0;
  background: var(--dark);
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, rgba(0,87,255,0.3) 0%, transparent 70%),
              radial-gradient(ellipse at center bottom, rgba(0,198,255,0.15) 0%, transparent 70%);
}

.cta-section__inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.cta-section__title {
  color: var(--white);
  margin-bottom: 20px;
}

.cta-section__desc {
  color: rgba(255,255,255,0.7);
  font-size: 1.15rem;
  margin-bottom: 40px;
  line-height: 1.8;
}

/* ── Blog Cards ── */
.blog-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,87,255,0.06);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.blog-card__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.blog-card__img-placeholder {
  width: 100%;
  height: 220px;
  background: var(--grad-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.blog-card__content {
  padding: 28px;
}

.blog-card__tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0,87,255,0.08);
  color: var(--primary);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.blog-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  margin-bottom: 12px;
}

.blog-card__excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-card__read-more {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
}

.blog-card__read-more:hover {
  color: var(--cyan-dark);
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: var(--grad-hero);
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,198,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,198,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}

.page-hero__breadcrumb a {
  color: rgba(255,255,255,0.55);
}

.page-hero__breadcrumb a:hover {
  color: var(--cyan);
}

.page-hero__breadcrumb .sep {
  opacity: 0.4;
}

.page-hero__title {
  color: var(--white);
  margin-bottom: 20px;
}

.page-hero__desc {
  color: rgba(255,255,255,0.75);
  font-size: 1.15rem;
  line-height: 1.8;
  max-width: 640px;
}

/* ── Tabs ── */
.tabs {
  margin-bottom: 48px;
}

.tabs__list {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--light-gray);
  padding-bottom: 0;
  flex-wrap: wrap;
}

.tabs__btn {
  padding: 12px 24px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: var(--transition);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tabs__btn:hover {
  color: var(--primary);
  background: rgba(0,87,255,0.04);
}

.tabs__btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tabs__panel {
  display: none;
}

.tabs__panel.active {
  display: block;
}

/* ── Accordion ── */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion__item {
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.accordion__item.open {
  box-shadow: var(--shadow-md);
  border-color: rgba(0,87,255,0.15);
}

.accordion__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  transition: var(--transition);
}

.accordion__btn:hover {
  color: var(--primary);
}

.accordion__icon {
  font-size: 1.2rem;
  transition: var(--transition);
  color: var(--primary);
  flex-shrink: 0;
  margin-left: 16px;
}

.accordion__item.open .accordion__icon {
  transform: rotate(45deg);
}

.accordion__content {
  display: none;
  padding: 0 28px 24px;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

.accordion__item.open .accordion__content {
  display: block;
}

/* ── Progress Bars ── */
.progress-item {
  margin-bottom: 24px;
}

.progress-item__header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.progress-item__label {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--dark);
}

.progress-item__value {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--primary);
}

.progress-track {
  height: 8px;
  background: var(--light-gray);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--grad-cta);
  border-radius: var(--radius-pill);
  transition: width 1.5s cubic-bezier(0.4,0,0.2,1);
  width: 0;
}

/* ── Timeline ── */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--cyan));
}

.timeline__item {
  position: relative;
  margin-bottom: 40px;
}

.timeline__dot {
  position: absolute;
  left: -34px; top: 4px;
  width: 16px; height: 16px;
  background: var(--white);
  border: 3px solid var(--primary);
  border-radius: 50%;
}

.timeline__dot::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
}

.timeline__title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--dark);
  margin-bottom: 6px;
}

.timeline__desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ── Callout Box ── */
.callout {
  padding: 28px 32px;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary);
  background: rgba(0,87,255,0.04);
  margin: 32px 0;
}

.callout--cyan {
  border-color: var(--cyan);
  background: rgba(0,198,255,0.05);
}

.callout--success {
  border-color: #00C896;
  background: rgba(0,200,150,0.05);
}

.callout__title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.callout__body {
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ── Badge / Tag ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.badge--blue {
  background: rgba(0,87,255,0.1);
  color: var(--primary);
}

.badge--cyan {
  background: rgba(0,198,255,0.1);
  color: var(--cyan-dark);
}

.badge--light {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

/* ── Footer ── */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 80px 0 0;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__brand-desc {
  color: rgba(255,255,255,0.55);
  font-size: 0.92rem;
  line-height: 1.8;
  margin: 20px 0 28px;
  max-width: 320px;
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
}

.footer__contact-icon {
  width: 32px; height: 32px;
  background: rgba(0,198,255,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.footer__heading {
  font-family: var(--font-primary);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__link {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer__link:hover {
  color: var(--cyan);
  gap: 12px;
}

.footer__disclaimer {
  background: rgba(0,0,0,0.2);
  padding: 24px 0;
  text-align: center;
}

.footer__disclaimer p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-wrap: wrap;
  gap: 16px;
}

.footer__bottom p {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.35);
}

.footer__legal-links {
  display: flex;
  gap: 24px;
}

.footer__legal-link {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
}

.footer__legal-link:hover {
  color: var(--cyan);
}

@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 640px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Scroll Reveal Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.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; }

/* ── Responsive Hero ── */
@media (max-width: 960px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }
  .hero__desc { max-width: 100%; }
  .hero__stats { justify-content: center; }
  .hero__visual { display: none; }
  .section-pad { padding: 70px 0; }
  .section-pad--lg { padding: 90px 0; }
}

@media (max-width: 640px) {
  .hero__stats {
    flex-direction: column;
    gap: 24px;
    align-items: center;
  }
  .btn-group {
    justify-content: center;
  }
  .container {
    padding: 0 16px;
  }
  .card { padding: 28px; }
  .section-pad { padding: 50px 0; }
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--light-gray), transparent);
  margin: 0;
}

/* ── Icon circles ── */
.icon-circle {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.icon-circle--blue {
  background: rgba(0,87,255,0.1);
  color: var(--primary);
}

.icon-circle--cyan {
  background: rgba(0,198,255,0.1);
  color: var(--cyan-dark);
}

/* ── Number Highlight ── */
.num-highlight {
  font-family: var(--font-primary);
  font-size: 4rem;
  font-weight: 900;
  background: var(--grad-cta);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

/* ── Table styles ── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--light-gray);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

thead {
  background: var(--grad-section);
  color: var(--white);
}

th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--light-gray);
  color: var(--text-body);
}

tr:last-child td {
  border-bottom: none;
}

tr:nth-child(even) td {
  background: rgba(0,87,255,0.02);
}

/* ── Notification Banner ── */
.notice-banner {
  background: linear-gradient(90deg, rgba(0,87,255,0.06), rgba(0,198,255,0.08));
  border: 1px solid rgba(0,198,255,0.2);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.notice-banner__icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.notice-banner__title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--dark);
  margin-bottom: 4px;
}

.notice-banner__body {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Legal page ── */
.legal-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 80px 24px;
}

.legal-content h2 {
  font-size: 1.5rem;
  color: var(--dark);
  margin: 48px 0 16px;
  padding-top: 48px;
  border-top: 1px solid var(--light-gray);
}

.legal-content h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.legal-content p {
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.85;
  font-size: 0.96rem;
}

.legal-content ul {
  list-style: disc;
  margin: 0 0 16px 24px;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 0.96rem;
}

.legal-content ul li {
  margin-bottom: 8px;
}

/* ── Print ── */
@media print {
  .nav, .cta-section, .footer { display: none; }
}