/* ==========================================================================
   styles.css — Aliquota Static Landing Page
   Design tokens, component styles, and responsive rules.
   Matches the React LandingPage.css exactly (BEM .landing-* prefix).
   No build step required — pure CSS custom properties.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens (copied from main.scss / the React design system)
   -------------------------------------------------------------------------- */

:root {
  --color-primary-900: #0F1B2D;
  --color-primary-800: #1A2942;
  --color-primary-700: #243B5C;
  --color-accent-700: #0F766E;
  --color-accent-600: #0D9488;
  --color-accent-500: #14B8A6;
  --color-accent-400: #2DD4BF;
  --color-accent-50: #F0FDFA;
  --color-accent-200: #99F6E4;
  --color-gray-900: #111827;
  --color-gray-700: #374151;
  --color-gray-500: #6B7280;
  --color-gray-300: #D1D5DB;
  --color-gray-200: #E5E7EB;
  --color-gray-100: #F3F4F6;
  --color-gray-50: #F9FAFB;
  --color-white: #FFFFFF;
  --accent-strong: #0B8277;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* --------------------------------------------------------------------------
   CSS Reset (minimal, scoped)
   -------------------------------------------------------------------------- */

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

body {
  margin: 0;
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   Base wrapper
   -------------------------------------------------------------------------- */

.landing {
  font-family: var(--font-sans);
  color: var(--color-gray-900);
  background: var(--color-white);
  overflow-x: hidden;
}

/* Shared container — max 1200px centered */
.landing__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Shared section padding */
.landing__section {
  padding: 96px 0;
}

.landing__section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--space-sm);
  text-align: center;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.landing__section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-500);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  text-align: center;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Header — sticky, navy, backdrop blur
   Special case: rgba with hardcoded alpha on primary-900 (#0F1B2D) is
   intentional because CSS cannot apply opacity to a var() color token.
   -------------------------------------------------------------------------- */

.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 27, 45, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: padding 0.25s ease, box-shadow 0.25s ease;
  padding: var(--space-md) 0;
}

.landing-header--scrolled {
  padding: var(--space-xs) 0;
  box-shadow: var(--shadow-lg);
}

.landing-header__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.landing-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  flex-shrink: 0;
}

.landing-header__logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.landing-header__brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

/* Desktop nav */
.landing-header__nav {
  flex: 1;
  display: flex;
  align-items: center;
}

.landing-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.landing-header__nav-list a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  position: relative;
  transition: color 0.15s ease;
}

.landing-header__nav-list a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-500);
  transition: width 0.2s ease;
}

.landing-header__nav-list a:hover {
  color: var(--color-white);
}

.landing-header__nav-list a:hover::after {
  width: 100%;
}

/* Header action buttons */
.landing-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
  flex-shrink: 0;
}

.landing-header__lang-toggle {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.landing-header__lang-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-white);
}

.landing-header__login {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  padding: 8px var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}

.landing-header__login:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.landing-header__register {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 9px var(--space-md);
  border-radius: var(--radius-sm);
  text-decoration: none;
  background: var(--color-accent-600);
  color: var(--color-white);
  transition: background 0.15s ease, transform 0.15s ease;
  display: inline-flex;
  align-items: center;
}

.landing-header__register:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

/* Mobile-only elements (hidden on desktop) */
.landing-header__mobile-actions {
  display: none;
}

.landing-header__mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.landing-header__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
  transform-origin: center;
}

/* Hamburger to X transformation when open */
.landing-header__mobile-toggle--open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.landing-header__mobile-toggle--open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.landing-header__mobile-toggle--open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Hero — full viewport, navy gradient
   -------------------------------------------------------------------------- */

.landing-hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

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

.landing-hero__gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--color-primary-900) 0%,
    var(--color-primary-800) 50%,
    var(--color-primary-700) 100%
  );
}

/* Dot pattern overlay */
.landing-hero__pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(13, 148, 136, 0.15) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.7;
}

/* Architectural skyline */
.landing-hero__skyline {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40%;
  z-index: 0;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 0, 0, 0.3) 25%,
    rgba(0, 0, 0, 0.8) 50%,
    black 70%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 0, 0, 0.3) 25%,
    rgba(0, 0, 0, 0.8) 50%,
    black 70%
  );
}

.landing-hero__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px var(--space-lg) var(--space-3xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  width: 100%;
}

.landing-hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.landing-hero__title {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0;
}

.landing-hero__highlight {
  color: var(--color-accent-500);
  font-style: italic;
}

.landing-hero__subtitle {
  font-size: 1.25rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  max-width: 520px;
}

.landing-hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-xs);
}

.landing-hero__cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px var(--space-xl);
  background: var(--color-accent-600);
  color: var(--color-white);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: var(--shadow-md);
  min-height: 44px;
  font-family: var(--font-sans);
}

.landing-hero__cta-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.landing-hero__cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px var(--space-xl);
  background: transparent;
  color: var(--color-white);
  font-weight: 600;
  font-size: 1rem;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
  font-family: var(--font-sans);
}

.landing-hero__cta-secondary:hover {
  background: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-primary-900);
}

/* Hero visual — pulsing logo with rotating dashed ring */
.landing-hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.landing-hero__icon-container {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Pulsing background circle */
.landing-hero__icon-container::before {
  content: '';
  position: absolute;
  inset: -20px;
  border-radius: var(--radius-full);
  background: rgba(13, 148, 136, 0.12);
  animation: landing-pulse 3s ease-in-out infinite;
}

/* Rotating dashed ring */
.landing-hero__icon-container::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: var(--radius-full);
  border: 2px dashed rgba(13, 148, 136, 0.4);
  animation: landing-rotate 12s linear infinite;
}

.landing-hero__icon {
  width: 150px;
  height: 150px;
  object-fit: contain;
  border-radius: var(--radius-lg);
  position: relative;
  z-index: 1;
}

/* Teal accent line at bottom of hero */
.landing-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent-600);
  z-index: 2;
}

/* Scroll indicator */
.landing-hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
  animation: landing-fade-bob 2s ease-in-out infinite;
}

.landing-hero__scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.35), transparent);
}

/* --------------------------------------------------------------------------
   Problem / About section — light background
   -------------------------------------------------------------------------- */

.landing-problem {
  background: var(--color-white);
}

.landing-problem__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.landing-problem__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xl);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-gray-50);
  text-align: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.landing-problem__stat:hover {
  border-color: var(--color-accent-600);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.landing-problem__stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent-600);
  line-height: 1;
  letter-spacing: -0.02em;
}

.landing-problem__stat-label {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  font-weight: 500;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Features — dark navy background, 2-column grid of 6 cards
   -------------------------------------------------------------------------- */

.landing-features {
  background: var(--color-primary-900);
}

.landing-features .landing__section-title {
  color: var(--color-white);
}

.landing-features .landing__section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.landing-features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.landing-feature-card {
  background: var(--color-primary-900);
  border: 1px solid rgba(13, 148, 136, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

/* Top accent bar — revealed on hover via scaleX animation */
.landing-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent-600);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.landing-feature-card:hover {
  border-color: rgba(13, 148, 136, 0.45);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.landing-feature-card:hover::before {
  transform: scaleX(1);
}

.landing-feature-card__icon {
  font-size: 2.5rem;
  line-height: 1;
  color: var(--color-accent-500);
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 148, 136, 0.1);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.landing-feature-card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent-500);
  stroke: currentColor;
  fill: none;
}

.landing-feature-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-white);
  margin: 0;
  line-height: 1.3;
}

.landing-feature-card__description {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.landing-feature-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  margin-top: var(--space-xs);
}

.landing-feature-card__tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-400);
  background: rgba(13, 148, 136, 0.12);
  border: 1px solid rgba(13, 148, 136, 0.2);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   Pricing — light gray background, 4-column card grid
   -------------------------------------------------------------------------- */

.landing-pricing {
  background: var(--color-gray-50);
}

/* Monthly / Annual billing toggle */
.landing-pricing__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-500);
  font-family: var(--font-sans);
}

.landing-pricing__toggle span.active {
  color: var(--color-gray-900);
  font-weight: 600;
}

/* Toggle switch button */
.landing-pricing__switch {
  position: relative;
  width: 48px;
  height: 26px;
  background: var(--color-gray-200);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.landing-pricing__switch--active {
  background: var(--color-accent-600);
}

.landing-pricing__switch-knob {
  position: absolute;
  top: 3px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: left 0.2s ease;
}

.landing-pricing__switch--active .landing-pricing__switch-knob {
  left: 26px;
}

.landing-pricing__badge {
  font-size: 0.6875rem;
  font-weight: 700;
  background: var(--color-accent-600);
  color: var(--color-white);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: var(--space-2xs);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Pricing card grid */
.landing-pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  align-items: start;
}

.landing-pricing-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  box-shadow: var(--shadow-sm);
}

.landing-pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--color-accent-600);
}

.landing-pricing-card--popular {
  border: 2px solid var(--color-accent-600);
  transform: scale(1.02);
}

.landing-pricing-card--popular:hover {
  transform: scale(1.02) translateY(-2px);
}

.landing-pricing-card__popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent-600);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.landing-pricing-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gray-700);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

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

.landing-pricing-card__amount {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-gray-900);
  line-height: 1;
  letter-spacing: -0.03em;
}

.landing-pricing-card__period {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

.landing-pricing-card__annual-note {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin: 0;
  margin-top: -8px;
}

.landing-pricing-card__save-hint {
  color: var(--color-accent-700);
  font-weight: 600;
}

.landing-pricing-card__limit {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  font-weight: 500;
  margin: 0;
  padding: var(--space-xs) 0;
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
}

.landing-pricing-card__features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1;
}

.landing-pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-gray-700);
  line-height: 1.4;
}

.landing-pricing-card__features li svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent-600);
  flex-shrink: 0;
  margin-top: 1px;
  stroke: currentColor;
  fill: none;
}

/* CTA button inside pricing card */
.landing-pricing-card__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
  border: 1.5px solid var(--color-gray-300);
  color: var(--color-gray-700);
  background: transparent;
  min-height: 44px;
  font-family: var(--font-sans);
}

.landing-pricing-card__cta:hover {
  border-color: var(--color-accent-600);
  color: var(--color-accent-600);
}

.landing-pricing-card__cta--primary {
  background: var(--color-accent-600);
  border-color: var(--color-accent-600);
  color: var(--color-white);
}

.landing-pricing-card__cta--primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Guarantee badge shown on paid plan cards */
.landing-pricing-card__guarantee {
  font-size: 0.75rem;
  color: var(--color-accent-700);
  background: var(--color-accent-50);
  border: 1px solid var(--color-accent-200);
  border-radius: var(--radius-full);
  padding: 4px var(--space-sm);
  text-align: center;
  font-weight: 600;
  margin: 0;
}

/* "Contact Us" price display on enterprise card */
.landing-pricing-card__amount--custom {
  font-size: 1.5rem;
  color: var(--color-gray-700);
}

/* Annual note — hidden by default, shown when annual is active */
.landing-pricing-card__annual-note {
  display: none;
}

.landing-pricing--annual .landing-pricing-card__annual-note {
  display: block;
}

/* --------------------------------------------------------------------------
   Footer — navy background, 3-column grid
   -------------------------------------------------------------------------- */

.landing-footer {
  background: var(--color-primary-900);
  position: relative;
}

/* 3px teal accent line at top of footer */
.landing-footer__accent {
  height: 3px;
  background: var(--color-accent-600);
  width: 100%;
}

.landing-footer .landing__container {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
}

.landing-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-xl);
}

.landing-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.landing-footer__logo-row {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.landing-footer__logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.landing-footer__brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.landing-footer__tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.45);
  margin: 0;
  line-height: 1.5;
  max-width: 260px;
}

.landing-footer__links h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.35);
  margin: 0 0 var(--space-md);
}

.landing-footer__links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.landing-footer__links a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: color 0.15s ease;
}

.landing-footer__links a:hover {
  color: var(--color-accent-400);
}

.landing-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
}

.landing-footer__bottom p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
  margin: 0;
}

.landing-footer__made-in {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.3);
}

/* --------------------------------------------------------------------------
   Keyframe Animations
   -------------------------------------------------------------------------- */

@keyframes landing-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@keyframes landing-rotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes landing-fade-bob {
  0%, 100% {
    opacity: 0.45;
    transform: translateX(-50%) translateY(0);
  }
  50% {
    opacity: 0.7;
    transform: translateX(-50%) translateY(-6px);
  }
}

/* --------------------------------------------------------------------------
   Responsive — 1024px (tablet)
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .landing-hero__skyline {
    height: 35%;
  }

  .landing-pricing__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .landing-pricing-card--popular {
    transform: none;
  }

  .landing-pricing-card--popular:hover {
    transform: translateY(-2px);
  }

  .landing-hero__title {
    font-size: 2.75rem;
  }

  .landing-features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Responsive — 768px (mobile)
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
  .landing-hero__skyline {
    height: 28%;
    opacity: 0.7;
  }

  /* Header — show hamburger, hide desktop nav */
  .landing-header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary-900);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--space-md) var(--space-lg) var(--space-lg);
    box-shadow: var(--shadow-lg);
  }

  .landing-header__nav--open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .landing-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    width: 100%;
  }

  .landing-header__nav-list a {
    font-size: 1.0625rem;
    padding: var(--space-xs) 0;
    display: block;
    width: 100%;
  }

  .landing-header__mobile-toggle {
    display: flex;
  }

  .landing-header__login,
  .landing-header__register {
    display: none;
  }

  /* Mobile auth links inside dropdown */
  .landing-header__mobile-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    width: 100%;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .landing-header__mobile-login {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.0625rem;
    font-weight: 500;
    text-decoration: none;
    padding: var(--space-xs) 0;
  }

  .landing-header__mobile-login:hover {
    color: var(--color-white);
  }

  .landing-header__mobile-register {
    display: inline-block;
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 10px var(--space-md);
    border-radius: var(--radius-sm);
    text-decoration: none;
    background: var(--color-accent-600);
    color: var(--color-white);
    text-align: center;
    transition: background 0.15s ease;
  }

  .landing-header__mobile-register:hover {
    background: var(--accent-strong);
  }

  .landing-header__container {
    gap: var(--space-sm);
  }

  /* Hero — single column, text centered */
  .landing-hero__container {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 100px;
    gap: var(--space-2xl);
  }

  .landing-hero__title {
    font-size: 2.25rem;
  }

  .landing-hero__subtitle {
    font-size: 1.0625rem;
    margin-left: auto;
    margin-right: auto;
  }

  .landing-hero__actions {
    justify-content: center;
  }

  .landing-hero__visual {
    order: -1;
  }

  .landing-hero__icon-container {
    width: 160px;
    height: 160px;
    margin: 0 auto;
  }

  .landing-hero__icon {
    width: 110px;
    height: 110px;
  }

  .landing-hero__scroll-indicator {
    display: none;
  }

  /* Sections */
  .landing__section {
    padding: 64px 0;
  }

  .landing__section-title {
    font-size: 2rem;
  }

  /* Problem stats — stack */
  .landing-problem__stats {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  /* Feature cards — single column */
  .landing-features__grid {
    grid-template-columns: 1fr;
  }

  /* Pricing grid — single column */
  .landing-pricing__grid {
    grid-template-columns: 1fr;
  }

  .landing-pricing-card--popular {
    transform: none;
  }

  /* Footer grid — single column */
  .landing-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .landing-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
}

/* --------------------------------------------------------------------------
   Responsive — 480px (small mobile)
   -------------------------------------------------------------------------- */

@media (max-width: 480px) {
  .landing-hero__skyline {
    height: 22%;
    opacity: 0.5;
  }

  .landing__section {
    padding: 48px 0;
  }

  .landing__section-title {
    font-size: 1.75rem;
  }

  .landing__section-subtitle {
    font-size: 1rem;
    margin-bottom: var(--space-xl);
  }

  .landing-hero__title {
    font-size: 2rem;
  }

  .landing-hero__subtitle {
    font-size: 1rem;
  }

  .landing-hero__actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }

  .landing-hero__cta-primary,
  .landing-hero__cta-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .landing-hero__container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .landing__container {
    padding: 0 var(--space-md);
  }

  .landing-problem__stat-number {
    font-size: 2rem;
  }

  .landing-pricing-card__amount {
    font-size: 2.5rem;
  }

  .landing-header__brand-name {
    font-size: 18px;
  }

  .landing-footer__tagline {
    max-width: 100%;
  }
}

/* --------------------------------------------------------------------------
   Focus styles — WCAG 2.4.7 compliance
   -------------------------------------------------------------------------- */

.landing-header__nav-list a:focus-visible,
.landing-header__lang-toggle:focus-visible,
.landing-header__login:focus-visible,
.landing-header__register:focus-visible,
.landing-header__mobile-toggle:focus-visible,
.landing-hero__cta-primary:focus-visible,
.landing-hero__cta-secondary:focus-visible,
.landing-pricing__switch:focus-visible,
.landing-pricing-card__cta:focus-visible,
.landing-footer__links a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.35);
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Reduced motion support
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .landing-hero__icon-container::before,
  .landing-hero__icon-container::after,
  .landing-hero__scroll-indicator {
    animation: none;
  }

  .landing-feature-card,
  .landing-problem__stat,
  .landing-pricing-card,
  .landing-hero__cta-primary,
  .landing-hero__cta-secondary {
    transition: none;
  }

  .landing-feature-card:hover,
  .landing-problem__stat:hover,
  .landing-pricing-card:hover {
    transform: none;
  }
}