/* ==========================================
   Sherit Website Styles
   iOS-inspired static product site
   ========================================== */

:root {
  --primary: #007aff;
  --primary-light: #b9e8ff;
  --primary-dark: #005fcb;
  --mint: #30d158;
  --teal: #00c7be;
  --orange: #ff9500;
  --purple: #af52de;
  --red: #ff3b30;

  --bg-primary: #f2f2f7;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f9fafb;
  --text-primary: #101114;
  --text-secondary: #6e6e73;
  --text-tertiary: #a1a1aa;
  --border-color: rgba(60, 60, 67, 0.12);
  --divider: rgba(60, 60, 67, 0.12);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 20px 54px rgba(15, 23, 42, 0.16);

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-tertiary: #636366;
    --border-color: rgba(84, 84, 88, 0.58);
    --divider: rgba(84, 84, 88, 0.5);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.38);
    --shadow-lg: 0 20px 54px rgba(0, 0, 0, 0.45);
  }
}

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

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

body {
  min-height: 100vh;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

img[data-optional-image]:not(.screenshot-loaded) {
  display: none;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: 2.75rem;
  letter-spacing: 0;
}

h2 {
  font-size: 2rem;
  letter-spacing: 0;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  max-width: 720px;
  margin: 0 auto var(--spacing-2xl);
  text-align: center;
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p,
.text-secondary {
  color: var(--text-secondary);
}

.text-small {
  font-size: 0.875rem;
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.navbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  background: color-mix(in srgb, var(--bg-secondary) 92%, transparent);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  height: 64px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 700;
}

.logo-mark {
  position: relative;
  display: grid;
  width: 32px;
  height: 32px;
  overflow: hidden;
  place-items: center;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--mint));
  box-shadow: 0 8px 20px rgba(0, 122, 255, 0.25);
  color: white;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-fallback {
  position: absolute;
  color: white;
  font-size: 1rem;
  font-weight: 800;
}

.logo-mark.has-image {
  background: transparent;
  box-shadow: none;
}

.logo-mark.has-image .logo-fallback {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-links a {
  position: relative;
  padding: var(--spacing-sm) 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 600;
}

.nav-links a::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  content: "";
  transition: width var(--transition-normal);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.navbar-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-fast);
}

.language-selector {
  position: relative;
}

.language-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: max-content;
  min-width: 112px;
  min-height: 36px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
}

.current-lang {
  display: inline-block;
  white-space: nowrap;
}

.language-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.language-selector.open .lang-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  width: 100%;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px var(--spacing-md);
  border: 0;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  text-align: left;
  white-space: nowrap;
}

.lang-option:hover,
.lang-option.active {
  background: var(--bg-tertiary);
}

.hero {
  padding-top: calc(64px + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  align-items: center;
  gap: var(--spacing-3xl);
}

.hero-content {
  max-width: 720px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 700;
}

.hero-kicker::before {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--mint);
  content: "";
  box-shadow: 0 0 0 5px rgba(48, 209, 88, 0.16);
}

.hero h1 {
  max-width: 760px;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  max-width: 660px;
  margin-bottom: var(--spacing-xl);
  color: var(--text-secondary);
  font-size: 1.25rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.proof-pill {
  padding: 7px 11px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  min-height: 48px;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 0;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn svg {
  width: 20px;
  height: 20px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: white;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.phone-frame {
  position: relative;
  width: min(100%, 360px);
  aspect-ratio: 9 / 19.5;
  margin: 0 auto;
  border: 10px solid #111;
  border-radius: 42px;
  background: #111;
  box-shadow: var(--shadow-lg);
}

.phone-frame::before {
  position: absolute;
  top: 10px;
  left: 50%;
  z-index: 3;
  width: 86px;
  height: 24px;
  border-radius: 999px;
  background: #111;
  content: "";
  transform: translateX(-50%);
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 31px;
  background: linear-gradient(180deg, #eef8ff 0%, #ffffff 55%, #ecfff4 100%);
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background:
    radial-gradient(circle at 50% 20%, rgba(0, 122, 255, 0.18), transparent 34%),
    linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);
}

@media (prefers-color-scheme: dark) {
  .placeholder {
    background:
      radial-gradient(circle at 50% 20%, rgba(0, 122, 255, 0.3), transparent 34%),
      linear-gradient(180deg, #1c1c1e 0%, #111113 100%);
  }
}

.placeholder-top {
  height: 96px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--primary), var(--teal));
}

.placeholder-lines {
  display: grid;
  gap: 12px;
}

.placeholder-lines span {
  display: block;
  height: 14px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 20%, var(--bg-secondary));
}

.placeholder-lines span:nth-child(2) {
  width: 78%;
  background: color-mix(in srgb, var(--mint) 22%, var(--bg-secondary));
}

.placeholder-lines span:nth-child(3) {
  width: 58%;
}

.placeholder-label {
  align-self: flex-start;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.screenshot-loaded + .placeholder,
.logo-loaded + .logo-fallback {
  display: none;
}

.screenshots {
  background: var(--bg-primary);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-lg);
  align-items: start;
}

.screenshot-item {
  display: grid;
  gap: var(--spacing-md);
  justify-items: center;
}

.screenshot-shell {
  position: relative;
  width: min(100%, 280px);
  aspect-ratio: 9 / 19.5;
  overflow: hidden;
  border: 8px solid #111;
  border-radius: 36px;
  background: #111;
  box-shadow: var(--shadow-md);
}

.screenshot-shell::before {
  position: absolute;
  top: 8px;
  left: 50%;
  z-index: 2;
  width: 66px;
  height: 18px;
  border-radius: 999px;
  background: #111;
  content: "";
  transform: translateX(-50%);
}

.screenshot-shell img {
  width: 100%;
  height: 100%;
  border-radius: 27px;
  object-fit: cover;
}

.screenshot-label {
  color: var(--text-secondary);
  font-weight: 700;
  text-align: center;
}

.features {
  background: var(--bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.card {
  min-height: 224px;
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-icon {
  display: flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-md);
  color: white;
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card-icon.blue { background: var(--primary); }
.card-icon.green { background: var(--mint); }
.card-icon.teal { background: var(--teal); }
.card-icon.orange { background: var(--orange); }
.card-icon.purple { background: var(--purple); }
.card-icon.red { background: var(--red); }

.card h3 {
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

.download {
  background: linear-gradient(135deg, rgba(0, 122, 255, 0.18) 0%, var(--bg-primary) 50%, rgba(48, 209, 88, 0.16) 100%);
}

.download-options {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-md);
  max-width: 980px;
  margin: 0 auto;
}

.download-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-height: 88px;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
  color: var(--text-primary);
}

.download-card.is-disabled {
  cursor: default;
}

.download-card svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: var(--primary);
}

.download-card strong,
.download-card span {
  display: block;
}

.download-card span {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
}

.footer {
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--divider);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.legal-page {
  min-height: 100vh;
  padding-top: calc(64px + var(--spacing-2xl));
  padding-bottom: var(--spacing-3xl);
}

.legal-container {
  max-width: 840px;
  margin: 0 auto;
}

.legal-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}

.legal-header h1 {
  margin-bottom: var(--spacing-sm);
}

.legal-content {
  padding: var(--spacing-2xl);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
}

.legal-content h2 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--divider);
  font-size: 1.5rem;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  line-height: 1.75;
}

.legal-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
  list-style: disc;
}

.legal-content li::marker {
  color: var(--primary);
}

.highlight-box {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--primary) 12%, var(--bg-secondary));
}

.contact-box {
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.contact-box > svg {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  color: var(--primary);
}

.contact-box h3 {
  margin-bottom: var(--spacing-sm);
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  background: var(--primary);
  color: white;
  font-weight: 700;
}

.contact-email:hover {
  color: white;
  background: var(--primary-dark);
}

.faq-item {
  border-bottom: 1px solid var(--divider);
  padding: var(--spacing-md) 0;
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 700;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-item.active .faq-answer {
  max-height: 560px;
  padding-top: var(--spacing-md);
}

.faq-answer p:last-child,
.faq-answer ul:last-child {
  margin-bottom: 0;
}

.fade-in {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .navbar .container {
    gap: var(--spacing-sm);
  }

  .nav-links {
    gap: var(--spacing-lg);
  }

  .nav-links a {
    font-size: 0.875rem;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content,
  .hero-subtitle {
    margin-right: auto;
    margin-left: auto;
  }

  .hero-buttons,
  .hero-proof {
    justify-content: center;
  }

  .screenshots-grid,
  .download-options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.1rem;
  }

  h2 {
    font-size: 1.7rem;
  }

  .navbar .container {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-100%);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
  }

  .nav-links.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links a {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--divider);
  }

  .nav-links a::after {
    display: none;
  }

  .navbar-right {
    position: fixed;
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    justify-content: flex-start;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
  }

  .navbar-right.active {
    display: flex;
  }

  .language-selector,
  .language-btn {
    width: 100%;
  }

  .lang-dropdown {
    right: auto;
    left: 0;
    width: 100%;
  }

  .hero {
    padding-top: calc(64px + var(--spacing-2xl));
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .phone-frame {
    max-width: 310px;
  }

  .screenshots-grid,
  .download-options {
    grid-template-columns: 1fr;
  }

  .download-card {
    max-width: 360px;
    width: 100%;
    margin: 0 auto;
  }

  .legal-content,
  .contact-box {
    padding: var(--spacing-lg);
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}