/* ---------- Design tokens ---------- */
:root {
  --color-accent: #0F6CBD;
  --color-accent-hover: #0b5aa0;
  --color-accent-tint: #EAF3FB;
  --color-accent-contrast: #ffffff;

  --color-bg: #ffffff;
  --color-surface: #fafafa;
  --color-surface-hover: #f5f5f5;
  --color-text-primary: #171717;
  --color-text-secondary: #737373;
  --color-text-tertiary: #a3a3a3;
  --color-border: #e5e5e5;

  --color-danger: #b3261e;
  --color-success: #1e7a34;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-full: 999px;

  --shadow-overlay: 0 16px 48px rgba(0, 0, 0, 0.22);

  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container-width: 1120px;
}

:root[data-theme="dark"] {
  --color-bg: #121212;
  --color-surface: #1c1c1c;
  --color-surface-hover: #262626;
  --color-text-primary: #ededed;
  --color-text-secondary: #a3a3a3;
  --color-text-tertiary: #7a7a7a;
  --color-border: #2e2e2e;
  --color-accent-tint: #16324a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #121212;
    --color-surface: #1c1c1c;
    --color-surface-hover: #262626;
    --color-text-primary: #ededed;
    --color-text-secondary: #a3a3a3;
    --color-text-tertiary: #7a7a7a;
    --color-border: #2e2e2e;
    --color-accent-tint: #16324a;
  }
}

/* ---------- Reset ---------- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

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

h1, h2, h3, p {
  margin: 0;
}

button {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

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

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

.btn-secondary:hover {
  background: var(--color-surface-hover);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
}

.btn-icon:hover {
  background: var(--color-surface-hover);
}

/* ---------- Icons (outline style) ---------- */
.icon {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
}

.brand img {
  width: 32px;
  height: 32px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.main-nav a:hover {
  color: var(--color-text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 80px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--color-accent-tint);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 44px;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero .lede {
  margin-top: 20px;
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 46ch;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.hero-proof {
  margin-top: 28px;
  display: flex;
  gap: 24px;
  color: var(--color-text-tertiary);
  font-size: 13.5px;
}

.hero-proof strong {
  color: var(--color-text-primary);
  font-size: 15px;
  display: block;
}

.hero-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.hero-visual-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.hero-visual-row + .hero-visual-row {
  margin-top: 12px;
}

.platform-dot {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}

.hero-visual-row .status {
  margin-left: auto;
  font-size: 13px;
  color: var(--color-success);
  font-weight: 600;
}

/* ---------- Sections ---------- */
section {
  padding: 80px 0;
  scroll-margin-top: 84px;
}

/* ---------- Scroll-reveal (cascade) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

.feature-grid [data-reveal]:nth-child(2) { transition-delay: 0.08s; }
.feature-grid [data-reveal]:nth-child(3) { transition-delay: 0.16s; }
.feature-grid [data-reveal]:nth-child(4) { transition-delay: 0.24s; }
.feature-grid [data-reveal]:nth-child(5) { transition-delay: 0.32s; }
.feature-grid [data-reveal]:nth-child(6) { transition-delay: 0.4s; }

.steps [data-reveal]:nth-child(2) { transition-delay: 0.12s; }
.steps [data-reveal]:nth-child(3) { transition-delay: 0.24s; }

.pricing-grid [data-reveal]:nth-child(2) { transition-delay: 0.12s; }

.section-head {
  max-width: 620px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head .eyebrow {
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-head p {
  margin-top: 14px;
  color: var(--color-text-secondary);
  font-size: 16px;
}

.alt-surface {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
}

.feature-card .icon-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-tint);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 14.5px;
  line-height: 1.6;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 8px;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 18px;
}

.step h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  color: var(--color-text-secondary);
  font-size: 14.5px;
  line-height: 1.6;
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

.price-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.price-card .badge {
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-accent-tint);
  color: var(--color-accent);
  font-size: 12.5px;
  font-weight: 700;
  margin-bottom: 14px;
}

.price-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.price-card .price {
  margin-top: 10px;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.price-card .price span {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.price-card .price-note {
  margin-top: 4px;
  font-size: 13.5px;
  color: var(--color-text-tertiary);
}

.price-card ul {
  list-style: none;
  padding: 0;
  margin: 24px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.price-card li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  color: var(--color-text-secondary);
}

.price-card li .icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.price-card .btn {
  margin-top: auto;
}

/* ---------- Download ---------- */
.download-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 32px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 48px;
}

.download-panel h2 {
  font-size: 28px;
  font-weight: 700;
}

.download-panel p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 46ch;
}

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

.download-panel .btn-primary:hover {
  background: #f2f2f2;
}

.download-meta {
  margin-top: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.footer-brand img {
  width: 22px;
  height: 22px;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

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

/* ---------- Modal / popup overlays ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0s linear 0.25s;
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s ease, visibility 0s linear 0s;
}

.modal {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-overlay);
  width: 100%;
  max-width: 400px;
  padding: 32px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

.modal-backdrop.open .modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
}

.modal h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.modal .modal-subtitle {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

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

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0;
  color: var(--color-text-tertiary);
  font-size: 13px;
}

.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.form-field {
  margin-bottom: 16px;
}

.form-field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-field input {
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-size: 14.5px;
  font-family: inherit;
}

.form-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-tint);
}

.form-error {
  display: none;
  background: color-mix(in srgb, var(--color-danger) 10%, transparent);
  color: var(--color-danger);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13.5px;
  margin-bottom: 16px;
}

.form-error.visible {
  display: block;
}

.modal-switch {
  margin-top: 22px;
  text-align: center;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.modal-switch button {
  background: none;
  border: none;
  color: var(--color-accent);
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  padding: 0;
}

/* ---------- Account menu ---------- */
.account-menu {
  position: relative;
}

.account-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 6px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
}

.account-avatar {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.account-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-overlay);
  padding: 6px;
  display: none;
}

.account-dropdown.open {
  display: block;
}

.account-dropdown button, .account-dropdown a {
  display: block;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border-radius: 6px;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 14px;
  color: var(--color-text-primary);
  cursor: pointer;
}

.account-dropdown button:hover, .account-dropdown a:hover {
  background: var(--color-surface-hover);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-text-primary);
  color: var(--color-bg);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 200;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .main-nav, .hero-proof {
    display: none;
  }

  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 34px;
  }

  .feature-grid, .steps {
    grid-template-columns: 1fr;
  }

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

  .download-panel {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 36px 24px;
  }

  .download-panel .btn {
    width: 100%;
  }

  section {
    padding: 56px 0;
  }

  .hero {
    padding: 56px 0 48px;
  }

  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }
}