/* ============================================
   coffeeinside — Mobile-first responsive CSS
   Dark/light mode via data-theme attribute
   ============================================ */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #ffffff;
  --color-surface: #f5f5f5;
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-accent: #e8692a;
  --color-accent-hover: #d45a1f;
  --color-accent-soft: #fef3ec;
  --color-border: #e0e0e0;
  --radius: 12px;
  --max-width: 800px;
}

[data-theme="dark"] {
  --color-bg: #121212;
  --color-surface: #1e1e1e;
  --color-text: #e8e8e8;
  --color-text-muted: #999999;
  --color-accent: #e8792a;
  --color-accent-hover: #f09050;
  --color-accent-soft: #2a1f15;
  --color-border: #2a2a2a;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s, color 0.3s;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

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

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

main {
  flex: 1;
}

/* --- Header --- */
.site-header {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background-color: var(--color-bg);
  z-index: 100;
  transition: background-color 0.3s;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-icon {
  width: 26px;
  height: 26px;
}

h1.brand {
  margin: 0;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.35rem 0.55rem;
  cursor: pointer;
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color 0.2s;
}

.theme-toggle:hover {
  border-color: var(--color-accent);
}

.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: inline;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}

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

.btn--large {
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
}

.btn--outline {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

.link-subtle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.link-subtle:hover {
  color: var(--color-accent);
}

/* --- Section Titles --- */
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;
}

/* --- Hero --- */
.hero {
  padding: 3.5rem 0 3rem;
}

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

.hero-app-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  padding: 0.4rem 1rem 0.4rem 0.4rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50px;
}

.hero-app-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.hero-app-name {
  font-weight: 700;
  font-size: 1rem;
}

.hero h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin-bottom: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 2rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

/* --- Features --- */
.features {
  padding: 3rem 0;
  background-color: var(--color-surface);
  transition: background-color 0.3s;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.feature-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: background-color 0.3s, border-color 0.3s;
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* --- How It Works --- */
.how-it-works {
  padding: 3rem 0;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.step {
  text-align: center;
  max-width: 280px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.step h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.step-arrow {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  transform: rotate(90deg);
}

/* --- Pricing --- */
.pricing {
  padding: 3rem 0;
  background-color: var(--color-surface);
  transition: background-color 0.3s;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 560px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-align: center;
  position: relative;
  transition: background-color 0.3s, border-color 0.3s;
}

.pricing-card--premium {
  border-color: var(--color-accent);
  border-width: 2px;
}

.pricing-badge {
  position: absolute;
  top: -0.7rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.75rem;
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 2rem;
  font-weight: 800;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-period {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 1rem;
}

.pricing-features li {
  padding: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.pricing-features li::before {
  content: "\2713 ";
  color: var(--color-accent);
  font-weight: 700;
  margin-right: 0.4rem;
}

.pricing-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Platforms / CTA --- */
.platforms {
  padding: 3rem 0;
  text-align: center;
}

.platforms-sub {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: -1rem auto 2rem;
}

/* --- Prose (Privacy page) --- */
.prose {
  padding: 2.5rem 0 3rem;
}

.prose h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.prose .meta {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}

.prose h2 {
  font-size: 1.15rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

.prose p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

.prose a {
  text-decoration: underline;
}

/* --- 404 --- */
.not-found {
  text-align: center;
  padding: 5rem 0;
}

.not-found h1 {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.not-found p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

/* --- Footer --- */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

.footer-copy {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* --- Responsive --- */
@media (min-width: 600px) {
  .hero {
    padding: 5rem 0 4rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-sub {
    font-size: 1.1rem;
  }

  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }

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

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

  .steps {
    flex-direction: row;
    justify-content: center;
    gap: 1rem;
  }

  .step-arrow {
    transform: none;
    align-self: center;
    margin-top: -1.5rem;
  }

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

  .prose h1 {
    font-size: 2rem;
  }
}

@media (min-width: 900px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}