/* ============================================
   METRIX LANDING PAGE — STYLES
   Premium dark theme with glassmorphism
   ============================================ */

/* ---- CSS CUSTOM PROPERTIES ---- */
:root {
  --color-bg: #06060b;
  --color-bg-alt: #0c0c14;
  --color-surface: #12121e;
  --color-surface-hover: #1a1a2e;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(255, 255, 255, 0.12);
  --color-text: #e8e8f0;
  --color-text-muted: #8888a0;
  --color-text-dim: #555568;
  --color-white: #ffffff;
  --color-primary: #6c5ce7;
  --color-primary-light: #a29bfe;
  --color-accent: #00cec9;
  --color-accent-light: #81ecec;
  --color-gradient-1: #6c5ce7;
  --color-gradient-2: #00cec9;
  --color-gradient-3: #fd79a8;
  --color-success: #00b894;
  --color-danger: #e17055;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-glow: 0 0 60px rgba(108, 92, 231, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

/* ---- RESET & BASE ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; color: inherit; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- ANIMATIONS ---- */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ---- SECTION HEADERS ---- */
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary-light);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-white);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 600px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-subtitle {
  margin: 0 auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-md);
  padding: 14px 28px;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-gradient-1), #8b7cf7);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
}

.btn--primary:hover {
  box-shadow: 0 6px 30px rgba(108, 92, 231, 0.55);
  transform: translateY(-2px);
}

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

.btn--ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.btn--lg {
  padding: 16px 32px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

.btn--xl {
  padding: 20px 40px;
  font-size: 18px;
  border-radius: var(--radius-lg);
}

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

/* ---- NAVIGATION ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}

.nav.is-scrolled {
  background: rgba(6, 6, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
}

.nav__logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 18px;
  color: var(--color-white);
}

.nav__logo-text {
  color: var(--color-white);
}

.nav__links {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav__link:hover {
  color: var(--color-white);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-gradient-1), #8b7cf7);
  color: var(--color-white);
  transition: all var(--transition);
}

.nav__cta:hover {
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
  transform: translateY(-1px);
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: orbFloat 15s ease-in-out infinite;
}

.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: var(--color-gradient-1);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: var(--color-gradient-2);
  bottom: -5%;
  left: -5%;
  animation-delay: -5s;
}

.hero__orb--3 {
  width: 300px;
  height: 300px;
  background: var(--color-gradient-3);
  top: 40%;
  left: 30%;
  opacity: 0.2;
  animation-delay: -10s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero__grid {
  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: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black, transparent);
}

.hero__container {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(108, 92, 231, 0.12);
  border: 1px solid rgba(108, 92, 231, 0.25);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary-light);
  margin-bottom: 32px;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero__title-gradient {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2), var(--color-gradient-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 40px;
}

.hero__ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  display: block;
  font-size: 42px;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}

.hero__stat-percent,
.hero__stat-unit {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary-light);
}

.hero__stat-label {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.hero__stat-divider {
  width: 1px;
  height: 50px;
  background: var(--color-border);
  align-self: center;
}

.hero__scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-line {
  width: 2px;
  height: 40px;
  background: var(--color-border);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to bottom, transparent, var(--color-primary-light));
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { top: -50%; }
  100% { top: 150%; }
}

/* ---- PROBLEMS ---- */
.problems {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.problems__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.problem-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.problem-card__number {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-dim);
  margin-bottom: 12px;
}

.problem-card__icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.problem-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.problem-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.problem-card--accent {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(0, 206, 201, 0.08));
  border-color: rgba(108, 92, 231, 0.3);
}

.problem-card__solution {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(108, 92, 231, 0.2);
}

.problem-card__solution span {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-light);
}

/* ---- THREE ERAS ---- */
.eras {
  padding: 120px 0;
}

.eras__timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}

.eras__timeline::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(to right, var(--color-text-dim), var(--color-primary), var(--color-accent));
}

.era-card {
  text-align: center;
  padding: 40px 24px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
}

.era-card:hover {
  transform: translateY(-4px);
}

.era-card--active {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.1), rgba(0, 206, 201, 0.08));
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.era-card__era {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-text-dim);
  margin-bottom: 16px;
}

.era-card--active .era-card__era {
  color: var(--color-primary-light);
}

.era-card__icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.era-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.era-card__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.era-card__role {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-dim);
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.era-card__you {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-danger);
  color: var(--color-white);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

.era-card__metrix {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  color: var(--color-white);
  font-size: 12px;
  font-weight: 800;
  padding: 6px 16px;
  border-radius: 100px;
  white-space: nowrap;
  letter-spacing: 1px;
}

/* ---- FEATURES ---- */
.features {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

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

.feature-card__glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(108, 92, 231, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.feature-card--large {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 48px;
}

.feature-card__icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 92, 231, 0.12);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.feature-card__icon-wrap svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary-light);
}

.feature-card__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.feature-card__tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-accent);
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid rgba(0, 206, 201, 0.3);
  white-space: nowrap;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.feature-card--large .feature-card__title {
  font-size: 24px;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Chat Demo */
.feature-card__demo {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  padding: 16px 20px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  max-width: 90%;
}

.chat-bubble--user {
  background: rgba(108, 92, 231, 0.15);
  border: 1px solid rgba(108, 92, 231, 0.25);
  border-bottom-right-radius: 4px;
  align-self: flex-end;
  color: var(--color-text);
}

.chat-bubble--bot {
  background: rgba(0, 206, 201, 0.1);
  border: 1px solid rgba(0, 206, 201, 0.2);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  color: var(--color-text);
}

.chat-bubble__voice {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.voice-wave {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 24px;
}

.voice-wave span {
  display: block;
  width: 3px;
  border-radius: 3px;
  background: var(--color-primary-light);
  animation: wave 1.4s ease-in-out infinite;
}

.voice-wave span:nth-child(1) { height: 8px; animation-delay: 0s; }
.voice-wave span:nth-child(2) { height: 16px; animation-delay: 0.1s; }
.voice-wave span:nth-child(3) { height: 12px; animation-delay: 0.2s; }
.voice-wave span:nth-child(4) { height: 20px; animation-delay: 0.3s; }
.voice-wave span:nth-child(5) { height: 14px; animation-delay: 0.4s; }
.voice-wave span:nth-child(6) { height: 10px; animation-delay: 0.5s; }
.voice-wave span:nth-child(7) { height: 6px; animation-delay: 0.6s; }

@keyframes wave {
  0%, 100% { transform: scaleY(0.4); }
  50% { transform: scaleY(1); }
}

/* ---- DAY TIMELINE ---- */
.day {
  padding: 120px 0;
}

.day__timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.day__line {
  position: absolute;
  left: 80px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), var(--color-gradient-3));
  opacity: 0.3;
}

.day__item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 48px;
  position: relative;
}

.day__item:last-child {
  margin-bottom: 0;
}

.day__time {
  flex-shrink: 0;
  width: 65px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary-light);
  text-align: right;
  padding-top: 16px;
}

.day__dot {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 3px solid var(--color-primary);
  margin-top: 18px;
  position: relative;
  z-index: 1;
}

.day__dot--accent {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(0, 206, 201, 0.4);
}

.day__content {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}

.day__content:hover {
  border-color: var(--color-border-hover);
  transform: translateX(4px);
}

.day__content--accent {
  background: linear-gradient(135deg, rgba(0, 206, 201, 0.08), rgba(108, 92, 231, 0.06));
  border-color: rgba(0, 206, 201, 0.2);
}

.day__emoji {
  font-size: 28px;
  margin-bottom: 12px;
}

.day__content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.day__content p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---- CASE STUDY ---- */
.case {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.case__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.case__header {
  padding: 48px;
  text-align: center;
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.08), rgba(0, 206, 201, 0.05));
  border-bottom: 1px solid var(--color-border);
}

.case__header .section-title {
  margin-bottom: 8px;
}

.case__subtitle {
  font-size: 16px;
  color: var(--color-text-muted);
}

.case__details {
  padding: 48px;
}

.case__info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.case__info-item {
  text-align: center;
}

.case__info-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-dim);
  margin-bottom: 4px;
}

.case__info-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
}

.case__story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.case__before,
.case__after {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.case__before {
  background: rgba(225, 112, 85, 0.06);
  border: 1px solid rgba(225, 112, 85, 0.15);
}

.case__after {
  background: rgba(0, 184, 148, 0.06);
  border: 1px solid rgba(0, 184, 148, 0.15);
}

.case__before h4,
.case__after h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.case__before li,
.case__after li {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 6px 0;
  padding-left: 16px;
  position: relative;
}

.case__before li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--color-danger);
}

.case__after li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.case__results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case__result {
  text-align: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.case__result-number {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.case__result-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ---- DIFFERENTIATORS ---- */
.diff {
  padding: 120px 0;
}

.diff__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.diff__card {
  text-align: center;
  padding: 48px 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.diff__card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.diff__icon {
  font-size: 40px;
  margin-bottom: 20px;
}

.diff__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.diff__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---- PRICING ---- */
.pricing {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.pricing__comparison {
  max-width: 700px;
  margin: 0 auto 64px;
}

.pricing__cost {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing__cost-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.pricing__cost-label {
  font-size: 14px;
  color: var(--color-text-muted);
}

.pricing__cost-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-danger);
}

.pricing__cost-value--green {
  color: var(--color-success);
}

.pricing__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  transition: all var(--transition);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card--popular {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.02);
}

.pricing-card--popular:hover {
  transform: scale(1.02) translateY(-4px);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  color: var(--color-white);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-card__header {
  text-align: center;
  margin-bottom: 32px;
}

.pricing-card__name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.pricing-card__currency {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
}

.pricing-card__amount {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}

.pricing-card__period {
  font-size: 14px;
  color: var(--color-text-dim);
  display: block;
  margin-top: 4px;
}

.pricing-card__features {
  margin-bottom: 32px;
}

.pricing-card__features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-card__features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
}

.pricing-card__features li:last-child {
  border-bottom: none;
}

.pricing-card__note {
  text-align: center;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
}

/* ---- FAQ ---- */
.faq {
  padding: 120px 0;
}

.faq__list {
  max-width: 750px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 24px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  text-align: left;
  transition: color var(--transition);
}

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

.faq__chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-text-dim);
  transition: transform var(--transition);
}

.faq__item.is-open .faq__chevron {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq__item.is-open .faq__answer {
  max-height: 300px;
}

.faq__answer p {
  padding-bottom: 24px;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---- CTA ---- */
.cta {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.cta__card {
  position: relative;
  text-align: center;
  padding: 80px 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.cta__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  pointer-events: none;
}

.cta__orb--1 {
  width: 400px;
  height: 400px;
  background: var(--color-gradient-1);
  top: -30%;
  right: -10%;
}

.cta__orb--2 {
  width: 300px;
  height: 300px;
  background: var(--color-gradient-2);
  bottom: -20%;
  left: -5%;
}

.cta__title {
  position: relative;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.2;
}

.cta__subtitle {
  position: relative;
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto 32px;
}

.cta__buttons {
  position: relative;
  margin-bottom: 24px;
}

.cta__trust {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ---- FOOTER ---- */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.footer__desc {
  font-size: 14px;
  color: var(--color-text-dim);
  margin-top: 12px;
  line-height: 1.5;
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary-light);
}

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.footer__bottom p {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: 1fr 1fr; }
  .feature-card--large { grid-template-columns: 1fr; }
  .eras__timeline { grid-template-columns: 1fr; gap: 16px; }
  .eras__timeline::before { display: none; }
  .case__info { grid-template-columns: repeat(2, 1fr); }
  .case__story { grid-template-columns: 1fr; }
  .diff__grid { grid-template-columns: 1fr; }
  .pricing__cards { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .pricing-card--popular { transform: none; }
  .pricing-card--popular:hover { transform: translateY(-4px); }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
  
  .nav__links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6, 6, 11, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .hero { padding: 100px 24px 60px; }
  .hero__stats { gap: 20px; }
  .hero__stat-divider { display: none; }
  .hero__stat-number { font-size: 32px; }
  
  .problems,
  .eras,
  .features,
  .day,
  .case,
  .diff,
  .pricing,
  .faq,
  .cta { padding: 80px 0; }

  .problems__grid { grid-template-columns: 1fr; }
  .features__grid { grid-template-columns: 1fr; }
  .case__details { padding: 24px; }
  .case__header { padding: 32px 24px; }
  .case__results { grid-template-columns: 1fr; }
  .cta__card { padding: 48px 24px; }
  .cta__trust { flex-direction: column; align-items: center; gap: 8px; }

  .day__line { left: 30px; }
  .day__time { width: 30px; font-size: 11px; }
  .day__item { gap: 12px; }

  .footer__content { flex-direction: column; align-items: flex-start; gap: 24px; }
  .footer__links { flex-direction: column; gap: 12px; }

  .section-header { margin-bottom: 40px; }

  .register__content { grid-template-columns: 1fr; }
  .register__card { padding: 32px 20px; }
  .register__program { display: none; }
  .speakers__grid { grid-template-columns: 1fr; }
  .qualify__grid { grid-template-columns: 1fr; }
}

/* ---- URGENCY BADGES ---- */
.hero__urgency {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.urgency-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-muted);
}

.urgency-badge__icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary-light);
}

.urgency-badge--hot {
  background: rgba(225, 112, 85, 0.1);
  border-color: rgba(225, 112, 85, 0.3);
  color: var(--color-danger);
}

.urgency-badge--hot strong {
  color: var(--color-danger);
}

/* ---- QUALIFICATION ---- */
.qualify {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.qualify__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 700px;
  margin: 0 auto;
}

.qualify__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.qualify__item:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.qualify__check {
  font-size: 20px;
  flex-shrink: 0;
}

.qualify__item p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.qualify__item strong {
  color: var(--color-white);
}

/* ---- MID-PAGE CTA ---- */
.mid-cta {
  text-align: center;
  margin-top: 64px;
}

/* ---- REGISTRATION FORM ---- */
.register {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.register__card {
  position: relative;
  padding: 56px 48px;
  background: var(--color-surface);
  border: 1px solid rgba(108, 92, 231, 0.25);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 0 80px rgba(108, 92, 231, 0.1);
}

.register__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
}

.register__orb--1 {
  width: 400px;
  height: 400px;
  background: var(--color-gradient-1);
  top: -30%;
  right: -10%;
}

.register__orb--2 {
  width: 300px;
  height: 300px;
  background: var(--color-gradient-2);
  bottom: -20%;
  left: -5%;
}

.register__content {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.register__title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.2;
}

.register__desc {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.register__program h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.register__program li {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 4px 0 4px 20px;
  position: relative;
}

.register__program li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary-light);
}

.register__form-wrap {
  position: relative;
}

.register__form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.register__urgency {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.register__urgency svg { color: var(--color-primary-light); flex-shrink: 0; }

.register__spots {
  margin-left: auto;
  color: var(--color-danger);
  font-weight: 600;
}

.form-group input {
  width: 100%;
  padding: 16px 20px;
  font-size: 16px;
  font-family: var(--font-family);
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition);
}

.form-group input::placeholder {
  color: var(--color-text-dim);
}

.form-group input:focus {
  border-color: var(--color-primary);
  background: rgba(108, 92, 231, 0.06);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.register__trust {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 13px;
  color: var(--color-text-dim);
}

/* Success state */
.register__success {
  text-align: center;
  padding: 40px 24px;
}

.register__success-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.register__success h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.register__success p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.register__success-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ---- SPEAKERS ---- */
.speakers {
  padding: 100px 0;
}

.speakers__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.speaker-card {
  text-align: center;
  padding: 40px 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

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

.speaker-card__avatar {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: 50%;
}

.speaker-card__name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.speaker-card__role {
  font-size: 13px;
  color: var(--color-primary-light);
  font-weight: 500;
  margin-bottom: 12px;
}

.speaker-card__bio {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---- Updated problem solution link ---- */
.problem-card__solution a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-light);
  transition: color var(--transition);
}

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

/* ---- Inline speaker in register form ---- */
.register__speaker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.register__speaker-avatar {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: 50%;
  flex-shrink: 0;
}

.register__speaker strong {
  display: block;
  font-size: 15px;
  color: var(--color-white);
}

.register__speaker span {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ---- COMPACT PROBLEMS GRID (2x2) ---- */
.problems__grid--compact {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .problems__grid--compact {
    grid-template-columns: 1fr;
  }
}

/* ---- FEATURE PILLS ---- */
.feature-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.feature-pill {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.feature-pill:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.feature-pill__icon {
  font-size: 24px;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}

.feature-pill strong {
  display: block;
  font-size: 15px;
  color: var(--color-white);
  margin-bottom: 4px;
}

.feature-pill span {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .feature-pills {
    grid-template-columns: 1fr;
  }
}

/* ---- CASE STATS INLINE ---- */
.register__case {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.register__case-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.register__case-number {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}

.register__case-stat span {
  font-size: 12px;
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .register__case {
    justify-content: space-between;
  }
}

/* ---- FAQ INLINE CTA ---- */
.faq__cta {
  text-align: center;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.faq__cta p {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}