/* ============================================
   Cronoprice Apps – style.css
   Clean, mobile-first, light/dark mode support
   ============================================ */

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

:root {
  --color-bg: #ffffff;
  --color-surface: #f5f7fa;
  --color-text: #1a1a2e;
  --color-text-secondary: #555;
  --color-primary: #4361ee;
  --color-primary-hover: #3a56d4;
  --color-border: #e0e0e0;
  --color-card-shadow: rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --max-width: 960px;
  --transition: 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f0f1a;
    --color-surface: #1a1a2e;
    --color-text: #e8e8f0;
    --color-text-secondary: #a0a0b8;
    --color-primary: #5e7cff;
    --color-primary-hover: #7b94ff;
    --color-border: #2a2a40;
    --color-card-shadow: rgba(0, 0, 0, 0.3);
  }
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover,
a:focus-visible {
  text-decoration: underline;
}

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

/* ---------- Skip Link (a11y) ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus {
  top: 0;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}
.site-logo:hover {
  text-decoration: none;
  color: var(--color-primary);
}

.site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.25rem 0;
  position: relative;
}
.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  width: 100%;
}
.site-nav a:hover,
.site-nav a:focus-visible {
  text-decoration: none;
}

/* ---------- Main ---------- */
main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem;
  width: 100%;
}

/* ---------- Section Intro ---------- */
.intro {
  text-align: center;
  margin-bottom: 2.5rem;
}
.intro h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}
.intro p {
  color: var(--color-text-secondary);
  max-width: 540px;
  margin: 0 auto;
}

/* ---------- App Grid ---------- */
.app-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 600px) {
  .app-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 900px) {
  .app-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- App Card ---------- */
.app-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.app-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--color-card-shadow);
}

.app-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.app-card__name {
  font-size: 1.15rem;
  font-weight: 600;
}

.app-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  flex: 1;
}

.app-card__version {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

.app-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
}
.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-primary-hover);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--secondary:hover,
.btn--secondary:focus-visible {
  background: var(--color-primary);
  color: #fff;
}

.btn--small {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
}

.btn--icon-only {
  padding: 0.5rem;
}

/* ---------- Page Content (Privacy / Contact) ---------- */
.page-content {
  max-width: 700px;
}
.page-content h1 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
}
.page-content h2 {
  font-size: 1.2rem;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}
.page-content p,
.page-content ul {
  margin-bottom: 0.75rem;
  color: var(--color-text-secondary);
}
.page-content ul {
  padding-left: 1.25rem;
}

/* ---------- Contact Form ---------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 480px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
}
.form-group input,
.form-group textarea {
  padding: 0.6rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}
.form-group .error-msg {
  font-size: 0.8rem;
  color: #e74c3c;
  display: none;
}
.form-group.has-error .error-msg {
  display: block;
}
.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #e74c3c;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.notice-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--color-text);
  color: var(--color-bg);
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 200;
  pointer-events: none;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 1.5rem 1.25rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border);
}

/* ---------- Utilities ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}