/* ============================================================
   Liberkyma SPA — styles.css
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --color-bg: #09090f;
  --color-bg-card: #111118;
  --color-bg-card2: #16161f;
  --color-border: rgba(255, 255, 255, 0.07);
  --color-primary: #6c63ff;
  --color-primary-lt: #8b85ff;
  --color-accent: #ff6b6b;
  --color-accent2: #4ecdc4;
  --color-text: #e8e8f0;
  --color-text-muted: #888899;
  --color-white: #ffffff;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --shadow-card: 0 4px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 48px rgba(108, 99, 255, 0.18);
  --transition: 0.25s cubic-bezier(.4, 0, .2, 1);
  --nav-height: 68px;
}

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

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

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

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul,
ol {
  list-style: none;
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section--sm {
  padding: 64px 0;
}

/* ---------- Typography ---------- */
.display-1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.display-2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-lt);
  background: rgba(108, 99, 255, 0.12);
  border: 1px solid rgba(108, 99, 255, 0.25);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-top: 12px;
  line-height: 1.7;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-lt) 0%, var(--color-accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 24px rgba(108, 99, 255, 0.35);
}

.btn--primary:hover {
  background: var(--color-primary-lt);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(108, 99, 255, 0.45);
}

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

.btn--outline:hover {
  border-color: rgba(108, 99, 255, 0.4);
  background: rgba(108, 99, 255, 0.08);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1rem;
  border-radius: 14px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

/* Ensure the container fills the nav's full width so space-between works */
.nav>.container {
  flex: 1;
  min-width: 0;
}

.nav.nav--scrolled {
  background: rgba(9, 9, 15, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  width: 100%;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.nav__logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  cursor: pointer;
}

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

.nav__cta {
  margin-left: 8px;
}

/* ============================================================
   LANGUAGE SELECTOR
   ============================================================ */
.lang-selector {
  position: relative;
}

.lang-selector__trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
  transition: var(--transition);
  white-space: nowrap;
}

.lang-selector__trigger:hover {
  color: var(--color-white);
  border-color: rgba(108, 99, 255, 0.4);
  background: rgba(108, 99, 255, 0.08);
}

.lang-selector__flag {
  font-size: 1rem;
  line-height: 1;
}

.lang-selector__chevron {
  font-size: 0.7rem;
  transition: transform var(--transition);
}

.lang-selector.open .lang-selector__chevron {
  transform: rotate(180deg);
}

.lang-selector__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: var(--color-bg-card2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  z-index: 200;
}

.lang-selector.open .lang-selector__dropdown {
  display: block;
}

.lang-selector__option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.lang-selector__option:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.lang-selector__option.active {
  color: var(--color-white);
  background: rgba(108, 99, 255, 0.12);
}

/* Mobile variant — inside .nav__mobile */
.lang-selector--mobile {
  width: 100%;
  margin-top: 4px;
}

.lang-selector--mobile .lang-selector__trigger {
  width: 100%;
  justify-content: space-between;
  border: none;
  border-radius: 8px;
  background: transparent;
  padding: 12px 8px;
}

.lang-selector--mobile .lang-selector__trigger:hover {
  background: rgba(255, 255, 255, 0.04);
  border: none;
}

.lang-selector--mobile .lang-selector__dropdown {
  position: static;
  box-shadow: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-top: 4px;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  margin-left: auto;
}

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

/* Mobile nav */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(9, 9, 15, 0.97);
  backdrop-filter: blur(16px);
  padding: 20px 24px 28px;
  border-bottom: 1px solid var(--color-border);
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile-link {
  padding: 12px 8px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: 8px;
  transition: var(--transition);
}

.nav__mobile-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.04);
}

.nav__mobile-cta {
  margin-top: 12px;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

/* Radial gradient backdrop */
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.28;
}

.hero__bg-blob--1 {
  width: 700px;
  height: 700px;
  background: var(--color-primary);
  top: -200px;
  left: -200px;
}

.hero__bg-blob--2 {
  width: 500px;
  height: 500px;
  background: var(--color-accent2);
  bottom: -100px;
  right: -100px;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__eyebrow {
  margin-bottom: 24px;
}

.hero__title {
  margin-bottom: 28px;
}

#hero-typed {
  display: block;
  min-height: 2.4em;
  /* 2 lines × line-height 1.1 + buffer; em scales with clamp font-size */
  text-align: center;
  /* keeps text anchored horizontally whether 1 or 2 lines wrap */
  overflow: hidden;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.hero__desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 40px;
}

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

.hero__social-proof {
  margin-top: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero__stat {
  text-align: center;
}

.hero__stat-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
}

.hero__stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.hero__divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* ============================================================
   WHAT IS LIBERKYMA
   ============================================================ */
#about {
  background: var(--color-bg);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about__visual {
  position: relative;
}

.about__mockup {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.about__mockup::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent2));
}

.mockup__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.mockup__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup__dot--r {
  background: #ff5f57;
}

.mockup__dot--y {
  background: #febc2e;
}

.mockup__dot--g {
  background: #28c840;
}

.mockup__title {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-left: auto;
}

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

.mockup__step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--color-bg-card2);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 0.82rem;
  transition: var(--transition);
}

.mockup__step:hover {
  border-color: rgba(108, 99, 255, 0.3);
  background: rgba(108, 99, 255, 0.06);
}

.mockup__step-num {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mockup__step--done .mockup__step-num {
  background: var(--color-accent2);
}

.mockup__step--active .mockup__step-num {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent2));
  box-shadow: 0 2px 12px rgba(108, 99, 255, 0.45);
}

.mockup__step-name {
  font-weight: 500;
  color: var(--color-text);
}

.mockup__step-pct {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.mockup__progress {
  flex: 1;
  height: 4px;
  background: var(--color-bg);
  border-radius: 2px;
  overflow: hidden;
  margin-left: 4px;
}

.mockup__progress-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent2));
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 36px;
}

.about__feat {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about__feat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(108, 99, 255, 0.12);
  border: 1px solid rgba(108, 99, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.about__feat-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.about__feat-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   STEPS SECTION
   ============================================================ */
#steps {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.steps__header .section-sub {
  margin: 12px auto 0;
}

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

.step-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.step-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.08), rgba(78, 205, 196, 0.05));
  transition: opacity var(--transition);
}

.step-card:hover {
  border-color: rgba(108, 99, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(108, 99, 255, 0.15);
}

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

.step-card__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.step-card__num {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
}

.step-card__label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.step-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-top: 2px;
}

.step-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

.step-card__arrow {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(108, 99, 255, 0.12);
  border: 1px solid rgba(108, 99, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: var(--transition);
}

.step-card:hover .step-card__arrow {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateX(3px);
}

/* Step color accents */
.step-card[data-step="1"] .step-card__num {
  background: linear-gradient(135deg, #6c63ff, #9b8fff);
}

.step-card[data-step="2"] .step-card__num {
  background: linear-gradient(135deg, #ff6b6b, #ff9a9e);
}

.step-card[data-step="3"] .step-card__num {
  background: linear-gradient(135deg, #4ecdc4, #44b8b0);
}

.step-card[data-step="4"] .step-card__num {
  background: linear-gradient(135deg, #ffd93d, #f5b800);
}

.step-card[data-step="5"] .step-card__num {
  background: linear-gradient(135deg, #6bcb77, #4da95a);
}

.step-card[data-step="6"] .step-card__num {
  background: linear-gradient(135deg, #ff9a3c, #e67e22);
}

.step-card[data-step="7"] .step-card__num {
  background: linear-gradient(135deg, #a855f7, #7c3aed);
}

/* ============================================================
   AI-NATIVE SECTION
   ============================================================ */
#ai {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

#ai::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(108, 99, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.ai__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.ai__chat {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.ai__chat-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-bg-card2);
}

.ai__chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.ai__chat-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.ai__chat-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--color-accent2);
}

.ai__chat-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent2);
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.3;
  }
}

.ai__chat-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-msg {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  max-width: 85%;
}

.chat-msg--ai {
  align-self: flex-start;
}

.chat-msg--user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-msg__bubble {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.85rem;
  line-height: 1.55;
}

.chat-msg--ai .chat-msg__bubble {
  background: var(--color-bg-card2);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 4px;
}

.chat-msg--user .chat-msg__bubble {
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-msg__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.chat-msg--ai .chat-msg__avatar {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent2));
}

.chat-msg--user .chat-msg__avatar {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--color-border);
}

.ai__chat-input {
  padding: 16px;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--color-bg-card2);
}

.ai__chat-input-field {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.ai__chat-send {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: #fff;
}

.ai__features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.ai__feat-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.ai__feat-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 6px;
}

.ai__feat-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   KEY SURFACES
   ============================================================ */
#surfaces {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.surfaces__header {
  text-align: center;
  margin-bottom: 60px;
}

.surfaces__header .section-sub {
  margin: 12px auto 0;
}

.surfaces__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.surface-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.surface-card:hover {
  border-color: rgba(108, 99, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.surface-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 18px;
  transition: var(--transition);
}

.surface-card:hover .surface-card__icon {
  background: rgba(108, 99, 255, 0.18);
  border-color: rgba(108, 99, 255, 0.4);
  transform: scale(1.08);
}

.surface-card__name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.surface-card__desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   HOW IT WORKS (CTA / JOURNEY STRIP)
   ============================================================ */
#how {
  background: var(--color-bg);
}

.how__inner {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.how__inner::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.how__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.how__step {
  display: flex;
  gap: 20px;
  position: relative;
}

.how__step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 19px;
  top: 44px;
  width: 2px;
  bottom: -20px;
  background: linear-gradient(180deg, rgba(108, 99, 255, 0.4), rgba(108, 99, 255, 0.1));
}

.how__step-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-card2);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-primary);
  flex-shrink: 0;
  z-index: 1;
}

.how__step-body {
  padding-bottom: 28px;
}

.how__step-title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.how__step-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
#cta {
  background: var(--color-bg);
  padding-bottom: 120px;
}

.cta__card {
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.15) 0%, rgba(78, 205, 196, 0.08) 100%);
  border: 1px solid rgba(108, 99, 255, 0.25);
  border-radius: var(--radius-xl);
  padding: 80px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent2), var(--color-accent));
}

.cta__title {
  margin-bottom: 16px;
}

.cta__desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.cta__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.cta__bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.2;
  pointer-events: none;
}

.cta__bg-orb--1 {
  width: 400px;
  height: 400px;
  background: var(--color-primary);
  top: -150px;
  left: -100px;
}

.cta__bg-orb--2 {
  width: 350px;
  height: 350px;
  background: var(--color-accent2);
  bottom: -100px;
  right: -80px;
}

/* ============================================================
   WAITLIST FORM
   ============================================================ */
.waitlist-form {
  max-width: 620px;
  margin: 0 auto;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.waitlist-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.waitlist-form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.waitlist-form__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.waitlist-form__input {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
  font-family: var(--font-sans);
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.waitlist-form__input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

.waitlist-form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.18);
}

.waitlist-form__input.invalid {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.15);
}

.waitlist-form__textarea {
  resize: vertical;
  min-height: 90px;
}

.waitlist-form__error {
  font-size: 0.78rem;
  color: var(--color-accent);
  min-height: 1.1em;
}

.waitlist-form__status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
}

.waitlist-form__status[hidden] {
  display: none;
}

.waitlist-form__status--success {
  background: rgba(78, 205, 196, 0.1);
  border: 1px solid rgba(78, 205, 196, 0.3);
  color: var(--color-accent2);
}

.waitlist-form__status--error {
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.3);
  color: var(--color-accent);
}

.waitlist-form__footer {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.waitlist-form__submit {
  flex-shrink: 0;
}

.waitlist-form__submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn--ghost {
  background: none;
  color: var(--color-text-muted);
  border: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  cursor: pointer;
  padding: 0;
}

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

@media (max-width: 600px) {
  .waitlist-form__row {
    grid-template-columns: 1fr;
  }

  .waitlist-form__footer {
    justify-content: center;
    flex-direction: column;
  }

  .waitlist-form__footer .btn--ghost {
    text-align: center;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0 32px;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-muted);
}

.footer__links {
  display: flex;
  gap: 28px;
}

.footer__link {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
  cursor: pointer;
}

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

.footer__copy {
  width: 100%;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.footer__build {
  width: 100%;
  text-align: center;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  opacity: 0.5;
  margin-top: 6px;
  font-family: monospace;
  letter-spacing: 0.03em;
}

/* ============================================================
   MODAL (Step Detail)
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(9, 9, 15, 0.82);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition);
  position: relative;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

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

.modal__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 20px;
}

.modal__step-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.modal__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.modal__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 24px;
}

.modal__outputs-label {
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: 10px;
  color: var(--color-text);
}

.modal__outputs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal__output-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.modal__output-item::before {
  content: '✓';
  width: 18px;
  height: 18px;
  background: rgba(78, 205, 196, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--color-accent2);
  flex-shrink: 0;
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 {
  transition-delay: 0.1s;
}

.fade-up-delay-2 {
  transition-delay: 0.2s;
}

.fade-up-delay-3 {
  transition-delay: 0.3s;
}

.fade-up-delay-4 {
  transition-delay: 0.4s;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {

  .about__grid,
  .ai__grid,
  .how__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .how__inner {
    padding: 40px 28px;
  }

  .cta__card {
    padding: 48px 28px;
  }

  .nav__right {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 72px 0;
  }

  .steps__grid {
    grid-template-columns: 1fr;
  }

  .surfaces__grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero__social-proof {
    gap: 16px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 380px) {
  .surfaces__grid {
    grid-template-columns: 1fr;
  }
}