/* PicTake Landing Page — Theme tokens */

:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --primary: #1a3a5c;
  --accent: #4a90d9;
  --accent-hover: #5fa3e8;
  --text: #ffffff;
  --text-muted: #8b9bb4;
  --text-on-accent: #ffffff;
  --border: #21262d;
  --header-bg: rgba(13, 17, 23, 0.85);
  --hero-glow: rgba(74, 144, 217, 0.12);
  --section-gradient: linear-gradient(180deg, var(--bg) 0%, rgba(26, 58, 92, 0.15) 50%, var(--bg) 100%);
  --download-gradient: linear-gradient(180deg, var(--bg) 0%, rgba(26, 58, 92, 0.12) 50%, var(--bg) 100%);
  --card-hover-border: rgba(74, 144, 217, 0.4);
  --input-focus-ring: rgba(74, 144, 217, 0.15);
  --input-error-border: rgba(248, 81, 73, 0.5);
  --note-card-border: rgba(74, 144, 217, 0.3);
  --note-card-bg: rgba(74, 144, 217, 0.06);
  --step-number-bg: var(--primary);
  --step-number-color: var(--accent);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --max-width: 1100px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-brand: "Plus Jakarta Sans", var(--font);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f8fc;
  --bg-card: #ffffff;
  --primary: #1a3a5c;
  --accent: #2b6cb0;
  --accent-hover: #1e5a96;
  --text: #1a202c;
  --text-muted: #5a6578;
  --text-on-accent: #ffffff;
  --border: #e2e8f0;
  --header-bg: rgba(246, 248, 252, 0.9);
  --hero-glow: rgba(43, 108, 176, 0.08);
  --section-gradient: linear-gradient(180deg, var(--bg) 0%, rgba(43, 108, 176, 0.06) 50%, var(--bg) 100%);
  --download-gradient: linear-gradient(180deg, var(--bg) 0%, rgba(43, 108, 176, 0.05) 50%, var(--bg) 100%);
  --card-hover-border: rgba(43, 108, 176, 0.35);
  --input-focus-ring: rgba(43, 108, 176, 0.15);
  --input-error-border: rgba(220, 38, 38, 0.5);
  --note-card-border: rgba(43, 108, 176, 0.25);
  --note-card-bg: rgba(43, 108, 176, 0.05);
  --step-number-bg: #d4e6f7;
  --step-number-color: #2b6cb0;
  --shadow: 0 8px 32px rgba(26, 58, 92, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s, color 0.2s;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  gap: 1rem;
}

.site-header nav {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.25rem;
}

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

.logo-link .brand-name {
  color: var(--accent);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
}

.logo-link img,
.hero-logo {
  border-radius: 22%;
  object-fit: cover;
}

.logo-link img {
  width: 32px;
  height: 32px;
}

.logo-link svg {
  width: 36px;
  height: 36px;
}

.brand-name {
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--accent);
}

.brand-accent {
  color: inherit;
}

.brand-name--hero {
  font-weight: 700;
  font-size: clamp(1.9rem, 5vw, 2.75rem);
  letter-spacing: -0.03em;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.125rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

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

.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

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

.theme-toggle__icon {
  position: absolute;
  width: 18px;
  height: 18px;
  transition: opacity 0.15s ease;
}

.theme-toggle__icon--sun {
  opacity: 0;
}

.theme-toggle__icon--moon {
  opacity: 1;
}

html[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
}

html[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 0;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 0.25rem;
}

/* App Store Badge */
.app-store-badge {
  display: inline-block;
  transition: transform 0.2s, opacity 0.2s;
}

.app-store-badge:hover {
  transform: scale(1.03);
  opacity: 0.9;
}

.app-store-badge img {
  height: 40px;
  width: auto;
}

.app-store-badge--lg img {
  height: 48px;
}

/* Hero */
.hero {
  padding: 1.75rem 0 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 0.65rem;
}

.hero h1,
.hero .brand-name--hero {
  margin-bottom: 0.35rem;
}

.hero-tagline {
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  color: var(--text-muted);
  max-width: 440px;
  margin: 0 auto 1.125rem;
  line-height: 1.4;
}

.hero-cta {
  margin-top: 0.25rem;
}

/* Section shared */
section {
  padding: 2.25rem 0;
}

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.section-title {
  font-size: clamp(1.5rem, 3.5vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 520px;
  margin-bottom: 1.25rem;
  line-height: 1.45;
}

.section-header {
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-header .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* How it works */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.125rem;
  text-align: center;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--step-number-bg);
  color: var(--step-number-color);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50%;
  margin-bottom: 0.65rem;
}

.step-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  line-height: 1.25;
}

.step-card p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.4;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.125rem;
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
}

.feature-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
  line-height: 1.25;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.825rem;
  line-height: 1.4;
}

/* Checkmark colors demo */
.checkmarks-demo {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.check-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.check-dot--gray { background: #6e7681; }
.check-dot--blue { background: #4a90d9; }
.check-dot--red { background: #f85149; }
.check-dot--green { background: #3fb950; }

/* Pricing */
.pricing-section {
  background: var(--section-gradient);
}

.pricing-group {
  margin-bottom: 1.5rem;
}

.pricing-group-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
  text-align: center;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.125rem 1rem;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.pricing-card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
}

.pricing-card--featured {
  border-color: var(--accent);
  position: relative;
}

.pricing-card--featured::before {
  content: "Popular";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--text-on-accent);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-name {
  font-size: 0.925rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.pricing-gens {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
}

.pricing-price span {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Download */
.download-section {
  text-align: center;
  padding: 2.25rem 0;
}

.download-section .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.download-availability {
  margin-top: 0.65rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Contact */
.contact-section {
  background: var(--download-gradient);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.125rem;
  max-width: 900px;
  margin: 0 auto;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.125rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.form-group {
  margin-bottom: 0.875rem;
}

.form-group label {
  display: block;
  font-size: 0.825rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: var(--input-error-border);
}

.form-group textarea {
  resize: vertical;
  min-height: 88px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  pointer-events: none;
}

.form-actions {
  margin-top: 0.5rem;
}

.btn-submit {
  width: 100%;
  padding: 0.7rem 1.25rem;
  background: var(--accent);
  color: var(--text-on-accent);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.925rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, opacity 0.2s;
}

.btn-submit:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-status {
  margin-top: 0.65rem;
  font-size: 0.85rem;
  min-height: 1.25em;
}

.form-status--success {
  color: #3fb950;
}

.form-status--error {
  color: #f85149;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
}

.contact-info-card h3 {
  font-size: 0.925rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.contact-info-card p {
  color: var(--text-muted);
  font-size: 0.825rem;
  margin-bottom: 0.35rem;
  line-height: 1.4;
}

.contact-info-card--note {
  border-color: var(--note-card-border);
  background: var(--note-card-bg);
}

.contact-info-card--note p {
  margin-bottom: 0;
  font-size: 0.85rem;
}

.contact-info-card--note strong {
  color: var(--text);
}

.contact-info-card--note code {
  font-size: 0.8rem;
  background: var(--bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  color: var(--accent);
}

.contact-email-link {
  font-size: 0.9rem;
  font-weight: 500;
  word-break: break-all;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.125rem;
  list-style: none;
}

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

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

.footer-contact {
  color: var(--text-muted);
  font-size: 0.825rem;
}

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

.footer-copy {
  color: var(--text-muted);
  font-size: 0.8rem;
  opacity: 0.7;
}

/* Legal pages */
.legal-page {
  padding: 3rem 0 5rem;
}

.legal-page h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.legal-updated {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 2.5rem;
}

.legal-page h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--text);
}

.legal-page p,
.legal-page li {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.legal-page ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-page a {
  color: var(--accent);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

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

/* Responsive */
@media (min-width: 640px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .hero {
    padding: 2.25rem 0 2.5rem;
  }

  section {
    padding: 2.75rem 0;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-card--wide {
    grid-column: span 2;
  }

  .contact-layout {
    grid-template-columns: 1.4fr 1fr;
    max-width: var(--max-width);
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .btn-submit {
    width: auto;
    min-width: 180px;
  }
}

@media (max-width: 639px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem;
    gap: 0.75rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .site-header {
    position: relative;
  }
}