/* ============================================
   waddle huddle landing page - styles
   quiet, cozy, and mindful design
   ============================================ */

/* ============================================
   css variables - theme colors from theme.config.js
   ============================================ */
:root {
  /* Core colors - Snow White background, Soft Charcoal text */
  --color-primary: #111111;
  --color-background: #fafafa;
  --color-surface: #f5f5f5;
  --color-foreground: #2b2b2b;
  --color-muted: #687076;
  --color-border: #e5e7eb;

  /* Accent colors (used sparingly) */
  --color-ice-blue: #e6f4fe;
  --color-blush-pink: #ffe4e6;
  --color-aurora-green: #d1fae5;

  /* Status colors */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Helvetica Neue", sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;

  /* Transitions */
  --transition-smooth: all 0.3s ease-in-out;
}

/* ============================================
   reset and base styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  font-size: var(--font-size-base);
  overflow-x: hidden;
}

/* ============================================
   typography - lowercase aesthetic
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-foreground);
  text-transform: lowercase;
  letter-spacing: -0.5px;
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  color: var(--color-muted);
  line-height: 1.7;
  font-weight: 400;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--color-foreground);
}

/* ============================================
   layout container
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ============================================
   header
   ============================================ */
.header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(
    135deg,
    rgba(230, 244, 254, 0.4) 0%,
    rgba(209, 250, 229, 0.4) 100%
  );
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  gap: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 400;
  color: var(--color-primary);
  justify-self: center;
  grid-column: 2;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.footer-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.logo-text {
  letter-spacing: -0.5px;
  text-transform: lowercase;
}

/* ============================================
   hero section
   ============================================ */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  padding: var(--spacing-4xl) var(--spacing-md);
  min-height: 600px;
  background: linear-gradient(
    135deg,
    rgba(230, 244, 254, 0.3) 0%,
    rgba(255, 228, 230, 0.3) 50%,
    rgba(209, 250, 229, 0.3) 100%
  );
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--spacing-lg);
}

.hero-title {
  font-size: var(--font-size-3xl);
  line-height: 1.1;
  color: var(--color-primary);
  font-weight: 500;
  letter-spacing: -1.5px;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-muted);
  line-height: 1.6;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

.cta-button {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 12px;
  font-size: var(--font-size-base);
  font-weight: 500;
  text-transform: lowercase;
  transition: var(--transition-smooth);
  border: 2px solid transparent;
  cursor: pointer;
}

.cta-button.primary {
  background-color: var(--color-primary);
  color: var(--color-background);
  border: 2px solid var(--color-primary);
}

.cta-button.primary:hover {
  background-color: var(--color-foreground);
  border: 2px solid var(--color-foreground);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(17, 17, 17, 0.2);
}

.cta-button.secondary {
  background-color: var(--color-background);
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

.cta-button.secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(17, 17, 17, 0.1);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.feature-image {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(17, 17, 17, 0.08);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ============================================
   how it works section
   ============================================ */
.how-it-works {
  padding: var(--spacing-4xl) var(--spacing-md);
  background-color: var(--color-background);
}

.how-it-works h2 {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  font-size: var(--font-size-2xl);
  font-weight: 500;
  color: var(--color-foreground);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-2xl);
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-background);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(17, 17, 17, 0.15);
}

.step-image {
  width: 100%;
  max-width: 280px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(17, 17, 17, 0.08);
  transition: var(--transition-smooth);
  border: 1px solid var(--color-border);
}

.step-image:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(17, 17, 17, 0.12);
  border-color: var(--color-primary);
}

.step-image img {
  width: 100%;
  height: auto;
  display: block;
}

.step h3 {
  margin-top: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-foreground);
}

.step p {
  font-size: var(--font-size-sm);
  max-width: 280px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ============================================
   cta section (download)
   ============================================ */
.cta-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl) var(--spacing-md);
  text-align: center;
  background: linear-gradient(
    135deg,
    rgba(209, 250, 229, 0.3) 0%,
    rgba(230, 244, 254, 0.3) 100%
  );
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta-section h2 {
  margin-bottom: var(--spacing-md);
  color: var(--color-foreground);
  font-size: var(--font-size-2xl);
  font-weight: 500;
}

.cta-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
  text-transform: lowercase;
}

.download-buttons {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 12px;
  font-weight: 500;
  font-size: var(--font-size-base);
  transition: var(--transition-smooth);
  text-transform: lowercase;
}

.app-store,
.play-store {
  background-color: var(--color-primary);
  color: var(--color-background);
  border: 2px solid var(--color-primary);
}

.app-store:hover,
.play-store:hover {
  background-color: var(--color-foreground);
  border: 2px solid var(--color-foreground);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(17, 17, 17, 0.2);
}

.download-btn svg {
  width: 20px;
  height: 20px;
  color: var(--color-background);
}

.cta-note {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: var(--spacing-md);
  text-transform: lowercase;
}

/* ============================================
   footer
   ============================================ */
.footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-3xl) var(--spacing-md);
  border-top: 1px solid var(--color-border);
  background: linear-gradient(
    135deg,
    rgba(230, 244, 254, 0.3) 0%,
    rgba(209, 250, 229, 0.3) 100%
  );
  backdrop-filter: blur(10px);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  text-transform: lowercase;
}

.footer-nav {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: var(--font-size-sm);
  color: var(--color-foreground);
  text-transform: lowercase;
  font-weight: 500;
}

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

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  text-align: center;
  text-transform: lowercase;
}

/* ============================================
   responsive design - tablet
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 36px;
    --font-size-2xl: 28px;
    --spacing-4xl: 64px;
    --spacing-3xl: 40px;
    --spacing-2xl: 32px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-2xl) var(--spacing-md);
    min-height: auto;
  }

  .hero-content {
    text-align: center;
    align-items: center;
  }

  .hero-cta {
    justify-content: center;
  }

  .feature-image {
    max-width: 350px;
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }

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

  .footer-nav {
    justify-content: center;
  }
}

/* ============================================
   responsive design - mobile
   ============================================ */
@media (max-width: 480px) {
  :root {
    --font-size-3xl: 28px;
    --font-size-2xl: 24px;
    --font-size-xl: 20px;
    --spacing-4xl: 48px;
    --spacing-3xl: 32px;
    --spacing-2xl: 24px;
    --spacing-xl: 16px;
  }

  .header {
    padding: var(--spacing-lg) var(--spacing-md);
    grid-template-columns: auto 1fr auto;
  }

  .logo {
    gap: var(--spacing-xs);
    font-size: var(--font-size-lg);
  }

  .theme-toggle {
    grid-column: 3;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
  }

  .hero {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .cta-button {
    width: 100%;
    justify-content: center;
  }

  .feature-image {
    max-width: 100%;
  }

  .how-it-works {
    padding: var(--spacing-3xl) var(--spacing-md);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .step-image {
    max-width: 100%;
  }

  .step p {
    max-width: 100%;
  }

  .cta-section {
    padding: var(--spacing-3xl) var(--spacing-md);
  }

  .download-buttons {
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
  }

  .download-btn {
    width: 100%;
    justify-content: center;
  }

  .footer {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .footer-nav {
    gap: var(--spacing-md);
  }
}

/* ============================================
   accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   theme toggle button
   ============================================ */
.theme-toggle {
  background: none;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-xs);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  color: var(--color-foreground);
  justify-self: end;
  grid-column: 3;
}

.theme-toggle:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
  display: none;
}

/* ============================================
   dark mode - manual toggle & system preference
   ============================================ */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary: #ecedee;
    --color-background: #151718;
    --color-surface: #1e2022;
    --color-foreground: #ecedee;
    --color-muted: #9ba1a6;
    --color-border: #334155;
    --color-ice-blue: #1a3a4a;
    --color-blush-pink: #4a2a2e;
    --color-aurora-green: #1a4a3a;
    --color-success: #4ade80;
    --color-warning: #fbbf24;
    --color-error: #f87171;
  }
}

[data-theme="dark"] {
  --color-primary: #ecedee;
  --color-background: #151718;
  --color-surface: #1e2022;
  --color-foreground: #ecedee;
  --color-muted: #9ba1a6;
  --color-border: #334155;
  --color-ice-blue: #1a3a4a;
  --color-blush-pink: #4a2a2e;
  --color-aurora-green: #1a4a3a;
  --color-success: #4ade80;
  --color-warning: #fbbf24;
  --color-error: #f87171;
}

[data-theme="dark"] .header {
  background: linear-gradient(
    135deg,
    rgba(26, 58, 74, 0.4) 0%,
    rgba(26, 74, 58, 0.4) 100%
  );
}

[data-theme="dark"] .hero {
  background: linear-gradient(
    135deg,
    rgba(26, 58, 74, 0.3) 0%,
    rgba(74, 42, 46, 0.3) 50%,
    rgba(26, 74, 58, 0.3) 100%
  );
}

[data-theme="dark"] .cta-section {
  background: linear-gradient(
    135deg,
    rgba(26, 74, 58, 0.3) 0%,
    rgba(26, 58, 74, 0.3) 100%
  );
}

[data-theme="dark"] .footer {
  background: linear-gradient(
    135deg,
    rgba(26, 58, 74, 0.3) 0%,
    rgba(26, 74, 58, 0.3) 100%
  );
}

[data-theme="dark"] .cta-button.primary {
  background-color: var(--color-primary);
  color: var(--color-background);
  border: 2px solid var(--color-primary);
}

[data-theme="dark"] .cta-button.primary:hover {
  background-color: var(--color-muted);
  border-color: var(--color-muted);
}

[data-theme="dark"] .cta-button.secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

[data-theme="dark"] .app-store,
[data-theme="dark"] .play-store {
  background-color: var(--color-primary);
  color: var(--color-background);
  border: 2px solid var(--color-primary);
}

[data-theme="dark"] .app-store:hover,
[data-theme="dark"] .play-store:hover {
  background-color: var(--color-muted);
  border-color: var(--color-muted);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .header {
    background: linear-gradient(
      135deg,
      rgba(26, 58, 74, 0.4) 0%,
      rgba(26, 74, 58, 0.4) 100%
    );
  }

  :root:not([data-theme="light"]) .hero {
    background: linear-gradient(
      135deg,
      rgba(26, 58, 74, 0.3) 0%,
      rgba(74, 42, 46, 0.3) 50%,
      rgba(26, 74, 58, 0.3) 100%
    );
  }

  :root:not([data-theme="light"]) .cta-section {
    background: linear-gradient(
      135deg,
      rgba(26, 74, 58, 0.3) 0%,
      rgba(26, 58, 74, 0.3) 100%
    );
  }

  :root:not([data-theme="light"]) .footer {
    background: linear-gradient(
      135deg,
      rgba(26, 58, 74, 0.3) 0%,
      rgba(26, 74, 58, 0.3) 100%
    );
  }

  :root:not([data-theme="light"]) .cta-button.primary {
    background-color: var(--color-primary);
    color: var(--color-background);
    border: 2px solid var(--color-primary);
  }

  :root:not([data-theme="light"]) .cta-button.primary:hover {
    background-color: var(--color-muted);
    border-color: var(--color-muted);
  }

  :root:not([data-theme="light"]) .cta-button.secondary {
    background-color: var(--color-surface);
    color: var(--color-primary);
    border: 2px solid var(--color-border);
  }

  :root:not([data-theme="light"]) .app-store,
  :root:not([data-theme="light"]) .play-store {
    background-color: var(--color-primary);
    color: var(--color-background);
    border: 2px solid var(--color-primary);
  }

  :root:not([data-theme="light"]) .app-store:hover,
  :root:not([data-theme="light"]) .play-store:hover {
    background-color: var(--color-muted);
    border-color: var(--color-muted);
  }
}