@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400..700;1,400..700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- Theme Variables & Foundations --- */
:root {
  --bg-base: #f4f5f6;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #fafafa;

  --text-primary: #18181b;
  --text-secondary: #52525b;
  --text-muted: #71717a;

  /* Defaults to PeakTask Teal (Pastel) */
  --accent: #56b4ab;
  --accent-text: #0d9488;
  --accent-glow: rgba(86, 180, 171, 0.12);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Instrument Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --transition-speed: 0.25s;
}

/* PeakTask Theme Override (Pastel Teal) */
[data-theme="peaktask"] {
  --accent: #6dbcb4;
  --accent-text: #0d9488;
  --accent-glow: rgba(109, 188, 180, 0.15);
}

/* Daylines Theme Override (Black/White Monochromatic) */
[data-theme="daylines"] {
  --accent: #18181b;
  --accent-text: #18181b;
  --accent-glow: rgba(24, 24, 27, 0.08);
}

html[data-color-mode="dark"] [data-theme="daylines"] {
  --accent: #ffffff;
  --accent-text: #ffffff;
  --accent-glow: rgba(255, 255, 255, 0.12);
}

/* GainNotes Theme Override (Pastel Salmon) */
[data-theme="gainnotes"] {
  --accent: #ffa3a5;
  --accent-text: #dc2626;
  --accent-glow: rgba(255, 163, 165, 0.15);
}

/* --- Dark Mode Variable Shifts --- */
html[data-color-mode="dark"] {
  --bg-base: #0c0d0f;
  --bg-surface: #131418;
  --bg-surface-elevated: #1a1b21;

  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
}

/* --- Base Resets & Layout --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* We suppress ALL native borders globally, then add back ones we need */
* {
  border: none;
  outline: none;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.1;
}

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

/* --- Navigation Header --- */
header.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background-color: rgba(244, 245, 246, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  transition: background-color var(--transition-speed) ease;
}

html[data-color-mode="dark"] header.app-header {
  background-color: rgba(12, 13, 15, 0.85);
}

.header-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand-logo .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent);
  transition: background-color var(--transition-speed) ease;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

/* Dark Mode Toggle — pill with crescent moon */
.dark-mode-toggle {
  background: var(--text-primary);
  color: var(--bg-base);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
  white-space: nowrap;
}

.dark-mode-toggle:hover {
  transform: scale(1.03);
}

html[data-color-mode="dark"] .dark-mode-toggle {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.moon-icon-btn,
.sun-icon-btn {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.moon-icon-btn {
  fill: currentColor;
}

.sun-icon-btn {
  display: none;
}

html[data-color-mode="dark"] .moon-icon-btn {
  display: none;
}

html[data-color-mode="dark"] .sun-icon-btn {
  display: block;
}

/* --- App Switcher / Tabs --- */
.tab-container {
  display: flex;
  justify-content: center;
  padding-top: 120px;
  padding-bottom: 0;
  padding-left: 24px;
  padding-right: 24px;
  margin-bottom: 48px;
  position: relative;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.tab-list {
  display: flex;
  background-color: var(--bg-surface);
  border-radius: 100px;
  padding: 4px;
  position: relative;
  width: 100%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

html[data-color-mode="dark"] .tab-list {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.tab-btn {
  flex: 1;
  background: none;
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 16px;
  border-radius: 100px;
  cursor: pointer;
  z-index: 2;
  position: relative;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--text-primary);
}

/* Sliding tab indicator */
.tab-indicator {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: var(--tab-left, 4px);
  width: var(--tab-width, 33.333%);
  background-color: var(--bg-base);
  border-radius: 100px;
  z-index: 1;
  transition: left 0.3s cubic-bezier(0.25, 1, 0.5, 1), width 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: none;
}

/* --- Main Showcase Grid --- */
.showcase-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px 24px;
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 900px) {
  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .showcase-mockup {
    order: -1;
  }
}

/* Left Showcase Panel */
.showcase-info {
  display: flex;
  flex-direction: column;
}

.app-meta-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 6px 14px;
  background-color: var(--bg-surface);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  margin-bottom: 24px;
  transition: color var(--transition-speed) ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.app-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

@media (max-width: 640px) {
  .app-title {
    font-size: 2rem;
  }
}

.app-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.app-description.expanded {
  display: block;
  overflow: visible;
  -webkit-line-clamp: unset;
}

.read-more-btn {
  background: none;
  color: var(--accent-text);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  align-self: flex-start;
  margin-bottom: 32px;
  transition: color 0.2s ease;
}

.read-more-btn:hover {
  color: var(--text-primary);
}

/* Download Buttons */
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}

.app-store-badge-btn, .play-store-badge-btn {
  background-color: var(--accent);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow var(--transition-speed) ease;
  box-shadow: 0 6px 20px var(--accent-glow);
}

[data-theme="daylines"] .app-store-badge-btn,
[data-theme="daylines"] .play-store-badge-btn {
  color: #ffffff !important;
}

html[data-color-mode="dark"] [data-theme="daylines"] .app-store-badge-btn,
html[data-color-mode="dark"] [data-theme="daylines"] .play-store-badge-btn {
  color: #000000 !important;
}

.app-store-badge-btn:hover, .play-store-badge-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--accent-glow);
}

.app-store-badge-btn svg, .play-store-badge-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex-shrink: 0;
}

.app-store-badge-btn .sub-text, .play-store-badge-btn .sub-text {
  font-size: 0.7rem;
  font-weight: 500;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  line-height: 1;
  margin-bottom: 2px;
}

.app-store-badge-btn .main-text, .play-store-badge-btn .main-text {
  font-size: 1.05rem;
  line-height: 1;
  display: block;
}

/* Play Store — secondary style */
.play-store-badge-btn {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

html[data-color-mode="dark"] .play-store-badge-btn {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.play-store-badge-btn:hover {
  background-color: var(--bg-surface-elevated);
}

.play-store-badge-btn.hidden {
  display: none !important;
}

/* Metadata Card */
.app-meta-card {
  background-color: var(--bg-surface);
  border-radius: 20px;
  padding: 28px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
}

html[data-color-mode="dark"] .app-meta-card {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.meta-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

.meta-item-full {
  grid-column: 1 / -1;
  padding-top: 16px;
  /* subtle separator — very faint, not a border per se */
  box-shadow: inset 0 1px 0 rgba(0, 0, 0, 0.04);
}

html[data-color-mode="dark"] .meta-item-full {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.release-notes-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  margin-top: 4px;
}

/* --- Screenshot Mockup --- */
.showcase-mockup {
  display: flex;
  justify-content: center;
  align-items: center;
}

.mockup-screenshot-container {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 9 / 19.5;
  background-color: var(--bg-surface);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.07);
  position: relative;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

html[data-color-mode="dark"] .mockup-screenshot-container {
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.mockup-screenshot-container:hover {
  transform: translateY(-4px) scale(1.01);
}

.mockup-screenshot-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(0.97);
  transition: opacity 0.35s ease, transform 0.35s ease;
  display: block;
}

.mockup-screenshot-container img.loaded {
  opacity: 1;
  transform: scale(1);
}

/* Skeleton loader while image loads */
.mockup-screenshot-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    var(--bg-surface) 30%,
    var(--bg-surface-elevated) 50%,
    var(--bg-surface) 70%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
  opacity: 1;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.mockup-screenshot-container.img-loaded::before {
  opacity: 0;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Footer --- */
footer.app-footer {
  margin-top: 64px;
  padding: 48px 24px;
  text-align: center;
  background-color: var(--bg-surface);
  box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.04);
}

html[data-color-mode="dark"] footer.app-footer {
  box-shadow: 0 -1px 0 rgba(255, 255, 255, 0.04);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-links a {
  transition: color 0.15s ease;
}

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

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

/* --- Visitor Tracker --- */
.visitor-tracker {
  position: fixed;
  bottom: 12px;
  right: 12px;
  padding: 6px 10px;
  background-color: var(--bg-surface-elevated);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: 6px;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: auto;
  z-index: 2000;
  border: 1px solid transparent;
}

.visitor-tracker:hover {
  opacity: 1;
  transform: translateY(-2px);
  border-color: var(--accent-glow);
}

/* --- Responsive mobile --- */
@media (max-width: 480px) {
  .nav-links {
    gap: 12px;
  }

  .dark-mode-toggle {
    padding: 7px 12px;
    font-size: 0.8rem;
  }

  .download-actions {
    flex-direction: column;
  }

  .app-store-badge-btn, .play-store-badge-btn {
    justify-content: center;
    width: 100%;
  }

  .app-meta-card {
    grid-template-columns: 1fr;
  }

  .meta-item-full {
    grid-column: 1;
  }
}