/* ==========================================================================
   Syciot Studio & My Clock World - Global Design System & Styles
   Clean, Accessible, Modern Responsive CSS
   ========================================================================== */

:root {
  /* Brand Palette (Child-friendly, Elegant, Modern) */
  --color-primary: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #eff6ff;

  --color-accent-amber: #f59e0b;
  --color-accent-coral: #f43f5e;
  --color-accent-emerald: #10b981;
  --color-accent-purple: #8b5cf6;
  --color-accent-cyan: #06b6d4;

  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-card: #ffffff;

  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-light: #94a3b8;

  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;

  /* Elevation */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md:
    0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg:
    0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --shadow-xl:
    0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.06);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans:
    system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Max Widths */
  --max-width-content: 1120px;
  --max-width-narrow: 800px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.65;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition:
    color 0.15s ease,
    opacity 0.15s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  background: var(--color-primary-dark);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 1000;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--max-width-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: box-shadow 0.2s ease;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
}

.brand-logo:hover {
  color: var(--color-primary);
}

.brand-logo svg {
  width: 34px;
  height: 34px;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

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

.btn-nav {
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.25);
  transition:
    background-color 0.15s ease,
    transform 0.15s ease;
}

.btn-nav:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.28);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg);
  border-color: var(--color-border-hover);
  color: var(--color-primary);
  transform: translateY(-1px);
}

/* Store Badge Buttons */
.store-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background-color: #0f172a;
  color: #ffffff;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: all 0.15s ease;
  text-decoration: none;
}

.store-btn:hover {
  background-color: #1e293b;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.store-btn svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.store-btn-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.store-btn-subtitle {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
}

.store-btn-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.store-badge-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  margin-left: 6px;
  vertical-align: middle;
}

/* Hero Section */
.hero {
  padding: 4rem 0 4rem;
  text-align: center;
}

.hero-logo-wrap {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
}

.hero-app-logo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  box-shadow:
    0 12px 30px rgba(0, 200, 210, 0.28),
    0 4px 12px rgba(0, 0, 0, 0.08);
  border: 4px solid #ffffff;
  transition:
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.3s ease;
}

.hero-app-logo:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow:
    0 18px 36px rgba(0, 200, 210, 0.38),
    0 6px 16px rgba(0, 0, 0, 0.12);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.hero-title {
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title .app-main-title {
  display: block;
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 900;
  color: var(--color-text-main);
  margin-bottom: 0.35rem;
}

.hero-title .hero-tagline {
  display: block;
  font-size: clamp(1.4rem, 3.2vw, 2.2rem);
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-accent-purple) 100%
  );
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header App Brand Link */
.brand-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-divider {
  color: var(--color-border);
  font-weight: 300;
  font-size: 1.2rem;
}

.app-brand-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-main);
  transition: color 0.15s ease;
}

.app-brand-link:hover {
  color: var(--color-primary);
}

.header-app-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto 2.25rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* Clock / Graphic Interactive Showcase */
.clock-showcase-wrap {
  display: flex;
  justify-content: center;
  margin: 2rem auto 3rem;
}

.clock-preview-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  max-width: 420px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.clock-svg-dial {
  width: 260px;
  height: 260px;
  filter: drop-shadow(0 8px 16px rgba(15, 23, 42, 0.08));
}

.clock-caption {
  margin-top: 1.25rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Features & Cards */
.section {
  padding: 4.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}

.section-tag {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  margin-bottom: 1rem;
}

.section-description {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-hover);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.6rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  color: var(--color-text-main);
  letter-spacing: -0.01em;
}

.card-text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Feature Mode Colors */
.icon-toyclock {
  background-color: #fef3c7;
  color: #d97706;
}
.icon-practice {
  background-color: #dbeafe;
  color: #2563eb;
}
.icon-quiz {
  background-color: #ede9fe;
  color: #7c3aed;
}
.icon-sensory {
  background-color: #fce7f3;
  color: #db2777;
}
.icon-safe {
  background-color: #d1fae5;
  color: #059669;
}
.icon-gear {
  background-color: #e0f2fe;
  color: #0284c7;
}

/* Privacy / Trust Pill Group */
.trust-banner {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 3rem 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .trust-banner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.trust-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #166534;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.trust-desc {
  font-size: 0.92rem;
  color: #15803d;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.trust-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #ffffff;
  color: #166534;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid #86efac;
  box-shadow: var(--shadow-sm);
}

/* Document & Policy Article Layout */
.doc-article {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-top: 2rem;
  margin-bottom: 4rem;
  box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
  .doc-article {
    padding: 3.5rem;
  }
}

.doc-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1.75rem;
  margin-bottom: 2.25rem;
}

.doc-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.doc-meta {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.doc-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 2.5rem;
  margin-bottom: 0.85rem;
  color: var(--color-text-main);
  border-left: 4px solid var(--color-primary);
  padding-left: 0.75rem;
}

.doc-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-main);
}

.doc-content p {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.doc-content ul,
.doc-content ol {
  color: var(--color-text-muted);
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.doc-content li {
  margin-bottom: 0.4rem;
}

.callout-box {
  background-color: var(--color-primary-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.callout-box strong {
  color: var(--color-primary-dark);
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.faq-item:hover {
  border-color: var(--color-border-hover);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  font-size: 1.08rem;
  font-weight: 700;
  text-align: left;
  background: none;
  border: none;
  color: var(--color-text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* Contact Details Box */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-top: 2rem;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.contact-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.contact-card p {
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto 1.5rem;
}

.email-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(59, 130, 246, 0.3);
  text-decoration: none;
  transition: all 0.15s ease;
}

.email-pill:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

/* Footer */
.site-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 4rem 0 2rem;
  margin-top: 5rem;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(auto-fit, minmax(160px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.3rem;
  color: #ffffff;
}

.footer-logo svg {
  width: 32px;
  height: 32px;
}

.footer-desc {
  max-width: 340px;
  line-height: 1.6;
  color: #94a3b8;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .nav-menu {
    gap: 1.25rem;
  }
  .nav-link {
    font-size: 0.88rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}