/* ============================================
   ParentApproved.tv — Landing Page Styles
   Mobile-first. Clean. Trustworthy.
   ============================================ */

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

:root {
  --white: #FAFAFA;
  --bg: #FFFFFF;
  --text: #1A1A1A;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --green: #22A559;
  --green-hover: #1B8A49;
  --green-light: #F0FDF4;
  --blue: #3B82F6;
  --sage: #F0FDF4;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --card-bg: #FFFFFF;
  --section-alt: #F9FAFB;
  --beta-bg: #FFFBEB;
  --beta-text: #92400E;
  --beta-border: #FDE68A;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --max-width: 1080px;
  --section-padding: 80px 24px;
  --section-padding-mobile: 56px 20px;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  text-decoration: underline;
}

/* --- Beta Banner --- */
.beta-banner {
  background: var(--beta-bg);
  border-bottom: 1px solid var(--beta-border);
  padding: 10px 20px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--beta-text);
  position: relative;
  z-index: 100;
}

.beta-banner a {
  color: var(--beta-text);
  font-weight: 600;
  text-decoration: underline;
}

.beta-banner-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--beta-text);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  opacity: 0.6;
}

.beta-banner-close:hover {
  opacity: 1;
}

.beta-banner.hidden {
  display: none;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: var(--section-padding);
}

@media (max-width: 768px) {
  section {
    padding: var(--section-padding-mobile);
  }
}

.section-alt {
  background: var(--section-alt);
}

/* --- Typography --- */
h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 8px;
}

.section-headline {
  text-align: center;
  margin-bottom: 48px;
}

.section-headline h2 {
  margin-bottom: 0;
}

.section-headline p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 12px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  .section-headline {
    margin-bottom: 32px;
  }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--green);
  color: white;
}

.btn-primary:hover {
  background: var(--green-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  border-color: var(--text-secondary);
  background: var(--section-alt);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* --- Hero --- */
.hero {
  padding: 80px 24px 64px;
  text-align: center;
}

.hero h1 {
  max-width: 700px;
  margin: 0 auto 20px;
}

.hero .subheadline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-visual {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-visual img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 768px) {
  .hero {
    padding: 48px 20px 40px;
  }
  .hero .subheadline {
    font-size: 1.05rem;
  }
}

/* --- Problem Section --- */
.problem-intro {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto 48px;
}

.problem-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.problem-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.card-icon-infinite { background: #FEF3C7; }
.card-icon-algorithm { background: #FEE2E2; }
.card-icon-ui { background: #E0E7FF; }

.problem-card h3 {
  margin-bottom: 10px;
}

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

.problem-card .source {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-light);
}

.problem-closing {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 500;
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .problem-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .problem-intro {
    font-size: 1.05rem;
  }
}

/* --- How It Works --- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: var(--max-width);
  margin: 0 auto 48px;
}

.step {
  text-align: center;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--green);
  color: white;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-visual {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

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

.step-visual-download {
  background: var(--section-alt);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  min-height: 200px;
  gap: 12px;
}

.download-step-icon {
  color: var(--green);
}

.download-step-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.step h3 {
  margin-bottom: 8px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.steps-note {
  text-align: center;
  font-size: 1.05rem;
  margin-bottom: 24px;
  font-weight: 500;
}

.remote-callout {
  max-width: 680px;
  margin: 0 auto;
  background: var(--sage);
  border: 1px solid #D1FAE5;
  border-radius: var(--radius);
  padding: 20px 24px;
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.6;
}

.remote-callout strong {
  display: block;
  margin-bottom: 4px;
}

@media (max-width: 768px) {
  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* --- TV Experience --- */
.tv-screenshot {
  max-width: 900px;
  margin: 0 auto 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.tv-screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

.tv-features {
  max-width: 640px;
  margin: 0 auto;
}

.tv-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.tv-feature .check {
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.tv-feature .cross {
  color: #DC2626;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.tv-feature span {
  color: var(--text-secondary);
}

/* --- Dashboard --- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  max-width: var(--max-width);
  margin: 0 auto 32px;
  align-items: center;
}

.dashboard-screenshot {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--section-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.dashboard-screenshot img {
  max-width: 320px;
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

.dashboard-features {
  list-style: none;
}

.dashboard-feature {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}

.dashboard-feature:last-child {
  border-bottom: none;
}

.dashboard-feature h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.dashboard-feature p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.dashboard-note {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* --- Comparison Table --- */
.comparison-wrapper {
  max-width: 900px;
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 640px;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 16px;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--text);
}

.comparison-table td:nth-child(2) {
  background: var(--sage);
  font-weight: 500;
}

.comparison-table th:nth-child(2) {
  background: var(--sage);
  color: var(--green);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

@media (max-width: 768px) {
  .comparison-wrapper {
    margin: 0 -20px;
    padding: 0 20px;
  }
}

/* --- Differentiators --- */
.differentiators {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.differentiator {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.differentiator h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.differentiator p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.differentiator a {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .differentiators {
    grid-template-columns: 1fr;
  }
}

/* --- For You / Not For You --- */
.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.fit-column h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.fit-column.for-you h3 {
  color: var(--green);
}

.fit-column.not-for-you h3 {
  color: var(--text-secondary);
}

.fit-list {
  list-style: none;
}

.fit-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.fit-list .icon {
  flex-shrink: 0;
  margin-top: 2px;
  font-weight: 700;
}

.for-you .icon { color: var(--green); }
.not-for-you .icon { color: #9CA3AF; }

@media (max-width: 768px) {
  .fit-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* --- Download Section --- */
.download-section {
  background: var(--text);
  color: white;
  padding: 80px 24px;
}

.download-card {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}

.download-card h2 {
  color: white;
  margin-bottom: 8px;
}

.download-card .version-info {
  color: #9CA3AF;
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.before-you-start {
  text-align: left;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 28px;
}

.before-you-start h3 {
  color: #D1D5DB;
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.before-you-start ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.before-you-start li {
  color: #9CA3AF;
  font-size: 0.9rem;
  padding: 4px 0;
  line-height: 1.5;
}

.download-card .btn-primary {
  font-size: 1.1rem;
  padding: 18px 40px;
  width: 100%;
  max-width: 320px;
  margin-bottom: 20px;
}

.download-card .btn-primary:hover {
  background: #2BD468;
}

.download-meta {
  color: #9CA3AF;
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.download-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #374151;
}

.download-links a {
  color: #9CA3AF;
  font-size: 0.9rem;
}

.download-links a:hover {
  color: white;
}

.sideload-note {
  margin-top: 24px;
  font-size: 0.9rem;
  color: #9CA3AF;
  line-height: 1.6;
}

.sideload-note strong {
  color: #D1D5DB;
}

/* --- Prelaunch Form --- */
.prelaunch-form {
  display: flex;
  gap: 8px;
  max-width: 420px;
  margin: 0 auto 24px;
}

.prelaunch-form input[type="email"] {
  flex: 1;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.08);
  color: white;
}

.prelaunch-form input[type="email"]::placeholder {
  color: #9CA3AF;
}

.prelaunch-form input[type="email"]:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(34, 165, 89, 0.25);
}

.prelaunch-form .btn-primary {
  padding: 16px 28px;
  white-space: nowrap;
  font-size: 1rem;
  width: auto;
  max-width: none;
  margin-bottom: 0;
}

@media (max-width: 480px) {
  .prelaunch-form {
    flex-direction: column;
  }
  .prelaunch-form .btn-primary {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .download-section {
    padding: var(--section-padding-mobile);
  }
}

/* --- FAQ --- */
.faq-list {
  max-width: 740px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  line-height: 1.4;
}

.faq-question:hover {
  color: var(--green);
}

.faq-arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease;
  color: var(--text-light);
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding-bottom: 20px;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- Email Signup --- */
.email-section {
  text-align: center;
  padding: 64px 24px;
  background: var(--sage);
}

.email-section h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.email-section p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.email-form {
  display: flex;
  gap: 8px;
  max-width: 420px;
  margin: 0 auto;
}

.email-form input[type="email"] {
  flex: 1;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  background: white;
  color: var(--text);
}

.email-form input[type="email"]::placeholder {
  color: var(--text-light);
}

.email-form input[type="email"]:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(34, 165, 89, 0.15);
}

.email-form button {
  padding: 14px 24px;
  white-space: nowrap;
}

@media (max-width: 480px) {
  .email-form {
    flex-direction: column;
  }
  .email-form button {
    width: 100%;
  }
}

/* --- Footer --- */
.site-footer {
  background: var(--text);
  color: #9CA3AF;
  padding: 48px 24px;
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer-brand p {
  margin-top: 12px;
  max-width: 360px;
}

.footer-links h4,
.footer-project h4 {
  color: #D1D5DB;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.footer-links ul,
.footer-project ul {
  list-style: none;
}

.footer-links li,
.footer-project li {
  margin-bottom: 6px;
}

.footer-links a,
.footer-project a {
  color: #9CA3AF;
  text-decoration: none;
}

.footer-links a:hover,
.footer-project a:hover {
  color: white;
  text-decoration: none;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid #374151;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.8rem;
}

.footer-bottom .trademark {
  color: #6B7280;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}