/* Design tokens — Dropbox-inspired system */
:root {
  --dbx-blue: #0061FE;
  --dbx-blue-hover: #004DC7;
  --dbx-blue-light: #B4D1FF;
  --dbx-blue-wash: #F2F7FF;
  --dbx-canvas: #F7F5F2;
  --dbx-canvas-white: #FFFFFF;
  --dbx-ink: #1E1919;
  --dbx-ink-soft: #44403D;
  --dbx-muted: #736C64;
  --dbx-muted-strong: #5B5650;
  --dbx-surface: #FFFFFF;
  --dbx-surface-soft: #EBE9E6;
  --dbx-surface-dark: #1E1919;
  --dbx-surface-dark-elevated: #2D2B29;
  --dbx-border: #D3CEC9;
  --dbx-border-soft: #EBE9E6;
  --dbx-yellow: #FAD24B;
  --dbx-lime: #B4DC19;
  --dbx-orange: #FA551E;
  --dbx-pink: #C0154C;
  --dbx-purple: #C8AFF0;
  --dbx-success: #0F503C;

  --font-display: "Sharp Grotesk", SharpGrotesk, "Atlas Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Atlas Grotesk Web", "Atlas Grotesk", AtlasGrotesk, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 9999px;

  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-section: 96px;
  --space-hero: 128px;

  --container-max: 1200px;
  --header-height: 64px;

  --shadow-mockup: 0 24px 48px rgba(30, 25, 25, 0.12), 0 8px 16px rgba(30, 25, 25, 0.06);
  --shadow-mobile: 0 16px 32px rgba(30, 25, 25, 0.14);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--dbx-ink);
  background-color: var(--dbx-canvas);
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

:focus-visible {
  outline: 2px solid var(--dbx-blue);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 200;
  padding: var(--space-sm) var(--space-md);
  background: var(--dbx-blue);
  color: var(--dbx-canvas);
  border-radius: var(--r-sm);
  font-weight: 500;
}

.skip-link:focus {
  top: var(--space-md);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--dbx-canvas-white);
  border-bottom: 1px solid var(--dbx-border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  color: var(--dbx-ink);
}

.logo-mark {
  width: 28px;
  height: 24px;
  background: var(--dbx-blue);
  border-radius: 6px 6px 6px 2px;
  position: relative;
}

.logo-mark::after {
  content: "";
  position: absolute;
  inset: 5px 6px;
  border: 2px solid var(--dbx-canvas-white);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--r-sm);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--dbx-ink);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-list a {
  font-size: 16px;
  color: var(--dbx-ink);
  transition: color 0.15s;
}

.nav-list a:hover {
  color: var(--dbx-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
  border-radius: var(--r-lg);
  border: none;
  cursor: pointer;
  transition: background-color 0.15s, transform 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.btn-primary {
  padding: 16px 24px;
  background: var(--dbx-blue);
  color: var(--dbx-canvas);
}

.btn-primary:hover {
  background: var(--dbx-blue-hover);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  padding: 14px 22px;
  background: transparent;
  color: var(--dbx-ink);
  border: 1px solid var(--dbx-border);
}

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

.btn-on-dark {
  padding: 14px 22px;
  background: transparent;
  color: var(--dbx-canvas);
  border: 1px solid rgba(247, 245, 242, 0.35);
}

.btn-on-dark:hover {
  background: rgba(247, 245, 242, 0.08);
  border-color: rgba(247, 245, 242, 0.55);
}

.btn-lg {
  padding: 18px 28px;
  font-size: 17px;
}

.btn-arrow {
  flex-shrink: 0;
}

/* Hero */
.hero {
  padding: var(--space-xxl) 0 var(--space-section);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl);
  align-items: center;
}

.hero-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--dbx-muted);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--dbx-ink);
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: clamp(18px, 2.5vw, 20px);
  line-height: 1.5;
  color: var(--dbx-muted-strong);
  max-width: 540px;
  margin-bottom: var(--space-xl);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero-meta {
  font-size: 13px;
  font-weight: 500;
  color: var(--dbx-muted);
}

/* Product mockup */
.mockup-stack {
  position: relative;
  padding: var(--space-lg) var(--space-lg) var(--space-xxl);
}

.mockup-window {
  background: var(--dbx-surface);
  border-radius: var(--r-xl);
  border: 1px solid var(--dbx-border-soft);
  box-shadow: var(--shadow-mockup);
  overflow: hidden;
}

.mockup-desktop {
  width: 100%;
}

.mockup-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: var(--dbx-surface-soft);
  border-bottom: 1px solid var(--dbx-border-soft);
}

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

.mockup-dot--red { background: #FF5F57; }
.mockup-dot--yellow { background: #FFBD2E; }
.mockup-dot--green { background: #28CA41; }

.mockup-toolbar-title {
  margin-left: var(--space-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--dbx-muted);
}

.mockup-body {
  display: flex;
  min-height: 260px;
}

.mockup-sidebar {
  width: 140px;
  padding: var(--space-md);
  background: var(--dbx-blue-wash);
  border-right: 1px solid var(--dbx-border-soft);
  flex-shrink: 0;
}

.mockup-nav-item {
  padding: 8px 10px;
  font-size: 12px;
  color: var(--dbx-muted);
  border-radius: var(--r-sm);
  margin-bottom: 4px;
}

.mockup-nav-item--active {
  background: var(--dbx-blue-light);
  color: var(--dbx-ink);
  font-weight: 500;
}

.mockup-content {
  flex: 1;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.play-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 12px;
  background: var(--dbx-canvas);
  border-radius: var(--r-md);
  border: 1px solid var(--dbx-border-soft);
}

.play-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  flex-shrink: 0;
}

.play-icon--win {
  background: var(--dbx-blue-light);
}

.play-icon--pending {
  background: var(--dbx-yellow);
}

.play-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.play-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--dbx-ink);
}

.play-meta {
  font-size: 11px;
  color: var(--dbx-muted);
}

.play-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--r-pill);
  background: var(--dbx-surface-soft);
  color: var(--dbx-muted-strong);
  flex-shrink: 0;
}

.play-badge--live {
  background: var(--dbx-blue);
  color: var(--dbx-canvas);
}

.play-badge--hit {
  background: var(--dbx-success);
  color: var(--dbx-canvas);
}

.mockup-mobile {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 200px;
  box-shadow: var(--shadow-mobile);
}

.mockup-mobile-header {
  padding: 10px 14px;
  background: var(--dbx-blue);
  color: var(--dbx-canvas);
}

.mockup-mobile-title {
  font-size: 12px;
  font-weight: 500;
}

.mockup-mobile-body {
  padding: 14px;
}

.mockup-alert-label {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--dbx-blue);
  margin-bottom: 6px;
}

.mockup-alert-text {
  font-size: 12px;
  line-height: 1.4;
  color: var(--dbx-ink-soft);
}

/* Trust strip */
.trust-strip {
  padding: var(--space-xl) 0;
  background: var(--dbx-canvas-white);
  border-top: 1px solid var(--dbx-border-soft);
  border-bottom: 1px solid var(--dbx-border-soft);
}

.trust-inner {
  text-align: center;
}

.trust-statement {
  font-size: 15px;
  color: var(--dbx-muted);
  margin-bottom: var(--space-lg);
}

.trust-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.trust-chip {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--dbx-muted-strong);
  background: var(--dbx-surface-soft);
  border-radius: var(--r-pill);
  border: 1px solid var(--dbx-border-soft);
}

/* Sections */
.section {
  padding: var(--space-section) 0;
}

.section-header {
  max-width: 640px;
  margin-bottom: var(--space-xxl);
}

.section-label {
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--dbx-blue);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--dbx-ink);
  margin-bottom: var(--space-md);
}

.section-lead {
  font-size: 18px;
  line-height: 1.5;
  color: var(--dbx-muted-strong);
}

/* Benefit cards */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.product-card {
  background: var(--dbx-surface);
  border: 1px solid var(--dbx-border-soft);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
}

.card-icon--blue { background: var(--dbx-blue-wash); color: var(--dbx-blue); }
.card-icon--lime { background: rgba(180, 220, 25, 0.15); color: #6B8A00; }
.card-icon--orange { background: rgba(250, 85, 30, 0.12); color: var(--dbx-orange); }

.card-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--dbx-ink);
}

.card-text {
  font-size: 16px;
  line-height: 1.5;
  color: var(--dbx-muted-strong);
  flex: 1;
}

.card-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--dbx-blue);
  transition: color 0.15s;
}

.card-link:hover {
  color: var(--dbx-blue-hover);
}

/* Feature story */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl);
  align-items: center;
}

.feature-text {
  font-size: 18px;
  line-height: 1.5;
  color: var(--dbx-muted-strong);
  margin-bottom: var(--space-xl);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  counter-reset: steps;
}

.step-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 40px;
  position: relative;
  counter-increment: steps;
}

.step-list li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
  background: var(--dbx-blue);
  color: var(--dbx-canvas);
  border-radius: 50%;
}

.step-list strong {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--dbx-ink);
}

.step-list span {
  font-size: 15px;
  color: var(--dbx-muted-strong);
}

/* Folder grid mockup */
.folder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.folder-tile {
  padding: var(--space-lg);
  border-radius: var(--r-lg);
  border: 1px solid var(--dbx-border-soft);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-height: 120px;
}

.folder-tile--yellow { background: rgba(250, 210, 75, 0.2); }
.folder-tile--blue { background: var(--dbx-blue-wash); }
.folder-tile--lime { background: rgba(180, 220, 25, 0.15); }
.folder-tile--pink { background: rgba(192, 21, 76, 0.08); }

.folder-label {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--dbx-ink);
}

.folder-count {
  font-size: 13px;
  color: var(--dbx-muted);
}

/* Security / dark panel */
.security-panel {
  background: var(--dbx-surface-dark);
  color: var(--dbx-canvas);
}

.security-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xxl);
  align-items: start;
}

.security-icon {
  color: var(--dbx-blue-light);
  margin-bottom: var(--space-lg);
}

.security-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.security-text {
  font-size: 18px;
  line-height: 1.5;
  color: rgba(247, 245, 242, 0.78);
  margin-bottom: var(--space-xl);
  max-width: 480px;
}

.testimonial-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.testimonial-card {
  background: var(--dbx-surface-dark-elevated);
  border-radius: var(--r-xl);
  padding: var(--space-lg);
  border: 1px solid rgba(247, 245, 242, 0.08);
  margin: 0;
}

.testimonial-quote {
  font-size: 16px;
  line-height: 1.5;
  color: rgba(247, 245, 242, 0.9);
  margin-bottom: var(--space-md);
}

.testimonial-author {
  font-size: 13px;
  font-weight: 500;
  color: var(--dbx-muted);
}

/* Final CTA */
.final-cta {
  background: var(--dbx-blue-wash);
}

.final-cta-inner {
  text-align: center;
  max-width: 640px;
}

.final-cta-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--dbx-ink);
  margin-bottom: var(--space-md);
}

.final-cta-text {
  font-size: 18px;
  line-height: 1.5;
  color: var(--dbx-muted-strong);
  margin-bottom: var(--space-xl);
}

/* Footer */
.site-footer {
  background: var(--dbx-surface-dark);
  color: var(--dbx-canvas);
  padding: var(--space-xxl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xxl);
  padding-bottom: var(--space-xxl);
  border-bottom: 1px solid rgba(247, 245, 242, 0.12);
}

.logo--footer .logo-text {
  color: var(--dbx-canvas);
}

.footer-tagline {
  margin-top: var(--space-md);
  font-size: 15px;
  line-height: 1.5;
  color: rgba(247, 245, 242, 0.65);
  max-width: 320px;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: var(--space-md);
  color: var(--dbx-canvas);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-nav a {
  font-size: 15px;
  color: rgba(247, 245, 242, 0.65);
  transition: color 0.15s;
}

.footer-nav a:hover {
  color: var(--dbx-canvas);
}

.footer-bottom {
  padding-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer-copy,
.footer-disclaimer {
  font-size: 13px;
  color: rgba(247, 245, 242, 0.45);
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .feature-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-media {
    order: -1;
  }

  .mockup-stack {
    padding: 0;
    max-width: 480px;
    margin: 0 auto;
  }

  .mockup-mobile {
    width: 160px;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 72px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--dbx-canvas-white);
    border-top: 1px solid var(--dbx-border-soft);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list a {
    display: block;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--dbx-border-soft);
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .mockup-sidebar {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
}