@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Design tokens — aligned with frontend/src/index.css */
:root {
  --bg: #0f1115;
  --surface: #151922;
  --surface-elevated: #1b2130;
  --sidebar: #0c0f14;
  --border: #252b38;
  --border-soft: #1d2330;
  --text: #f9fafb;
  --text-secondary: #c5cdd9;
  --text-muted: #9aa3b2;
  --accent: #7c8cff;
  --accent-hover: #6e7cff;
  --accent-soft: rgb(124 140 255 / 0.1);
  --accent-ring: rgb(124 140 255 / 0.12);
  --hover: rgb(255 255 255 / 0.04);
  --hover-subtle: rgb(255 255 255 / 0.02);
  --active: rgb(255 255 255 / 0.06);
  --success: #6ee7b7;
  --success-bg: rgb(16 185 129 / 0.08);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --max: 1200px;
  --motion: 160ms ease;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body.landing-page {
  margin: 0;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-secondary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* subtle grid */
.landing-page::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgb(255 255 255 / 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
}

/* Header */
.lp-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border-soft);
  background: rgb(15 17 21 / 0.8);
  backdrop-filter: blur(16px);
}

.lp-header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.lp-logo {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.lp-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.lp-nav a {
  display: none;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--motion), background var(--motion);
}

.lp-nav a:hover {
  color: var(--text);
  background: var(--hover-subtle);
}

.lp-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lp-user-chip {
  display: none;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 10px;
  height: 36px;
  line-height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
}

@media (min-width: 640px) {
  .lp-user-chip { display: inline-block; }
}

@media (min-width: 768px) {
  .lp-nav a { display: inline-flex; }
}

/* Buttons */
.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background var(--motion), border-color var(--motion), color var(--motion);
}

.lp-btn-ghost {
  color: var(--text-secondary);
  border-color: var(--border);
  background: transparent;
}

.lp-btn-ghost:hover {
  color: var(--text);
  background: var(--hover-subtle);
  border-color: #323a4a;
}

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

.lp-btn-primary:hover {
  background: var(--accent-hover);
}

.lp-btn-lg {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

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

.lp-eyebrow {
  display: inline-flex;
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.lp-title {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
}

.lp-lead {
  margin: 16px 0 0;
  max-width: 520px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-secondary);
}

.lp-section {
  padding: 96px 0;
  border-top: 1px solid var(--border-soft);
}

.lp-section-head {
  margin-bottom: 48px;
}

.lp-section-head.center {
  text-align: center;
}

.lp-section-head.center .lp-lead {
  margin-left: auto;
  margin-right: auto;
}

.lp-h2 {
  margin: 0;
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* Hero */
.lp-hero {
  position: relative;
  padding: 72px 0 48px;
}

.lp-hero::after {
  content: '';
  position: absolute;
  top: -140px;
  left: 50%;
  width: 880px;
  height: 520px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgb(124 140 255 / 0.2), rgb(124 140 255 / 0.04) 45%, transparent 72%);
  pointer-events: none;
}

.lp-hero-grid {
  position: relative;
  display: grid;
  gap: 48px;
  align-items: center;
}

@media (min-width: 960px) {
  .lp-hero-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 56px;
  }
}

.lp-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.lp-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
}

.lp-metric strong {
  display: block;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.lp-metric span {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Screenshots — отделение от фона */
.lp-shot-stage {
  position: relative;
  isolation: isolate;
}

.lp-shot-stage::before {
  content: '';
  position: absolute;
  inset: 4% -14% -22%;
  background: radial-gradient(ellipse 88% 72% at 50% 38%, rgb(124 140 255 / 0.32), rgb(124 140 255 / 0.08) 42%, transparent 76%);
  pointer-events: none;
  z-index: -1;
  filter: blur(2px);
}

.lp-shot-stage::after {
  content: '';
  position: absolute;
  inset: 18% 0 -8%;
  background: radial-gradient(ellipse 70% 50% at 50% 100%, rgb(255 255 255 / 0.06), transparent 68%);
  pointer-events: none;
  z-index: -1;
}

.lp-frame {
  border: 1px solid rgb(255 255 255 / 0.16);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgb(0 0 0 / 0.45) inset,
    0 36px 72px -28px rgb(0 0 0 / 0.85),
    0 0 56px -12px rgb(124 140 255 / 0.28),
    0 0 0 1px rgb(124 140 255 / 0.18);
}

.lp-frame-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--sidebar);
}

.lp-frame-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgb(255 255 255 / 0.1);
}

.lp-shot-well {
  padding: 12px;
  background: linear-gradient(180deg, #0d1016 0%, #05070a 100%);
  border-top: 1px solid rgb(255 255 255 / 0.06);
}

.lp-shot-well img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
  border-radius: var(--radius-sm);
  border: 1px solid rgb(255 255 255 / 0.16);
  box-shadow:
    0 24px 52px -18px rgb(0 0 0 / 0.92),
    0 0 40px -10px rgb(124 140 255 / 0.22);
}

/* Features */
.lp-features {
  display: grid;
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--border);
}

@media (min-width: 768px) {
  .lp-features { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .lp-features { grid-template-columns: repeat(3, 1fr); }
}

.lp-feature {
  padding: 24px;
  background: var(--surface);
  transition: background var(--motion);
}

.lp-feature:hover {
  background: var(--surface-elevated);
}

.lp-feature svg {
  width: 18px;
  height: 18px;
  stroke: var(--text-secondary);
  fill: none;
  stroke-width: 1.75;
}

.lp-feature h3 {
  margin: 14px 0 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.lp-feature p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Workflow */
.lp-workflow {
  display: grid;
  gap: 16px;
}

@media (min-width: 768px) {
  .lp-workflow { grid-template-columns: repeat(4, 1fr); }
}

.lp-step {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.lp-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-bottom: 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgb(124 140 255 / 0.2);
  border-radius: 6px;
  background: var(--accent-soft);
}

.lp-step h3 {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.lp-step p {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* Screenshots gallery */
#interface {
  background: linear-gradient(180deg, var(--bg) 0%, #10131c 38%, #0c0f17 62%, var(--bg) 100%);
}

.lp-screens {
  display: grid;
  gap: 20px;
}

@media (min-width: 768px) {
  .lp-screens { grid-template-columns: repeat(2, 1fr); }
}

.lp-screen {
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
  overflow: hidden;
  transition: border-color var(--motion), box-shadow var(--motion);
  box-shadow:
    0 22px 48px -30px rgb(0 0 0 / 0.7),
    0 0 48px -28px rgb(124 140 255 / 0.14);
}

.lp-screen:hover {
  border-color: rgb(124 140 255 / 0.32);
  box-shadow:
    0 28px 56px -26px rgb(0 0 0 / 0.75),
    0 0 56px -20px rgb(124 140 255 / 0.24),
    0 0 0 1px rgb(124 140 255 / 0.1);
}

.lp-screen-thumb {
  position: relative;
  padding: 14px 14px 0;
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(180deg, #10141c 0%, #07090d 100%);
}

.lp-screen-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 90% 70% at 50% 0%, rgb(124 140 255 / 0.16), transparent 72%);
  pointer-events: none;
}

.lp-screen-thumb .lp-shot-well {
  position: relative;
  z-index: 1;
  aspect-ratio: 16 / 10;
  padding: 0;
  background: #05070a;
  overflow: hidden;
}

.lp-screen-thumb .lp-shot-well img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border: 1px solid rgb(255 255 255 / 0.15);
  border-bottom: none;
  box-shadow: 0 0 28px -8px rgb(124 140 255 / 0.2);
}

.lp-screen-body {
  padding: 16px 18px 18px;
}

.lp-screen-body h3 {
  margin: 0 0 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.lp-screen-body p {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* Pricing */
.lp-pricing {
  display: grid;
  gap: 12px;
}

@media (min-width: 900px) {
  .lp-pricing { grid-template-columns: repeat(3, 1fr); }
}

.lp-plan {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.lp-plan.featured {
  border-color: rgb(124 140 255 / 0.35);
  background: var(--surface-elevated);
}

.lp-plan-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.lp-plan-price {
  margin: 8px 0 20px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
}

.lp-plan-price small {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
}

.lp-plan ul {
  flex: 1;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.lp-plan li {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.lp-plan li::before {
  content: '—';
  flex-shrink: 0;
  color: var(--text-muted);
}

.lp-plan li.muted {
  color: var(--text-muted);
  opacity: 0.85;
}

.lp-plan .lp-btn {
  width: 100%;
}

/* CTA */
.lp-cta {
  padding: 72px 0;
  border-top: 1px solid var(--border-soft);
}

.lp-cta-box {
  padding: 40px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
}

.lp-cta-box .lp-lead {
  margin: 12px auto 24px;
}

.lp-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

/* Footer */
.lp-footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border-soft);
}

.lp-footer-grid {
  display: grid;
  gap: 32px;
  margin-bottom: 40px;
}

@media (min-width: 640px) {
  .lp-footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.lp-footer h4 {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.lp-footer p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.lp-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.lp-footer li { margin-bottom: 8px; }

.lp-footer a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--motion);
}

.lp-footer a:hover { color: var(--text); }

.lp-footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}