/*
  txtpod - Landing Page Styles
  - Gradient background: top-right (#FF4019) to bottom-left (#E69525)
  - Responsive grid: 1 col (mobile) -> 3 cols (desktop)
  - Fonts: System UI sans fallback only
*/

:root {
  --bg-start: #5940ED;
  --bg-end: #5940ED;
  --text: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.85);
  --card-bg: rgba(255, 255, 255, 0.10);
  --card-border: rgba(255, 255, 255, 0.18);
  --max-w: 1100px;
  --hairline: rgba(255, 255, 255, 0.22);
  --glass-bg: rgba(0, 0, 0, 0.14);
  --img-shadow: 10px 10px 30px rgba(0,0,0,0.5), 40px 40px 60px rgba(0,0,0,0.3);
  --btn-hover-bg: rgba(255, 255, 255, 0.18);
}

/* Dark mode: use near-black background instead of blue */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-start: #131415;
    --bg-end: #131415;
  }
}

* {
  box-sizing: border-box;
}

html, body { min-height: 100%; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg-start);
  font-family: system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-width: 370px; /* allow horizontal scroll below 370px */
}

/* Improve keyboard focus visibility */
a:focus-visible, .btn:focus-visible, button:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.9);
  outline-offset: 2px;
}

/* Global image behavior */
img {
  max-width: 100%;
  height: auto;
  box-shadow: none;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-inline: clamp(24px, 6.5vw, 96px);
}

/* Top navigation */
.top-nav {
  position: fixed; /* do not reserve space; appears over content */
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent; /* single page bg */
  border-bottom: none; /* show only when scrolled */
  opacity: 0; /* hidden until scroll */
  transform: translateY(-100%);
  pointer-events: none;
  transition: opacity 200ms ease, transform 200ms ease, background-color 180ms ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 24px; /* slightly bigger title */
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 9999px;
  color: #fff;
  text-decoration: none;
  background: var(--btn-hover-bg);
  font-weight: 400; /* regular by default */
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--hairline);
  transition: background-color 180ms ease, border-color 180ms ease, filter 180ms ease, transform 60ms ease;
}

.btn:hover { background: var(--btn-hover-bg); filter: brightness(1.05); font-weight: 700; }
.btn:active { transform: translateY(1px); }

/* Hero */
.hero {
  text-align: center;
  padding: calc(80px + env(safe-area-inset-top)) 0 28px; /* account for iOS notch area */
  position: relative;
  overflow: visible;
}

.hero-head {
  display: block;
  margin-bottom: 8px;
}

.hero-titles {
  text-align: center;
}

/* Small pill to indicate iOS 26 readiness */
.ios-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 9999px;
  background: var(--btn-hover-bg);
  border: 1px solid var(--card-border);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-weight: 700;
  font-size: 14px;
  margin: 0 0 8px;
  position: relative;
  z-index: 1;
  will-change: opacity, transform;
  transition: opacity 180ms linear;
}

/* Blur only the text inside the badge to avoid Safari's backdrop-filter + filter conflict */
.ios-badge-text {
  display: inline-block;
  will-change: filter;
  transition: filter 180ms linear;
}

.hero-image {
  /* Keep full image visible without side cropping */
  width: 100%;
  max-width: clamp(300px, 92vw, 980px);
  height: auto; /* preserve aspect ratio */
  max-height: 80vh; /* avoid exceeding viewport height */
  display: block;
  margin: 18px auto 24px; /* space between subtitle and image */
  border-radius: 20px;
  position: relative;
  z-index: 2;
  pointer-events: none;
  will-change: transform;
}

/* From ~470px and up, crop nicely */
@media (min-width: 470px) {
  .hero-image {
    width: 100%;
    max-width: 980px;
    height: 80vh;
    max-height: 80vh;
    object-fit: cover;
    object-position: top center;
  }
}

.app-title {
  margin: 12px 0 10px; /* reduced space above title */
  font-size: clamp(56px, 8vw, 100px); /* larger title */
  font-weight: 900; /* bolder title */
  line-height: 1.05;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
  will-change: opacity, filter, transform;
  transition: opacity 180ms linear, filter 180ms linear;
}

/* Ensure any h1 renders heavy */
h1 { font-weight: 900; }

.app-subtitle {
  margin: 0 0 16px;
  font-size: clamp(22px, 3vw, 30px); /* larger subtitle */
  color: var(--text); /* same color as title */
  font-weight: 600; /* bolder subtitle */
  position: relative;
  z-index: 1;
  will-change: opacity, filter, transform;
  transition: opacity 180ms linear, filter 180ms linear;
}

.cta {
  margin: 8px 0 18px;
}

.cta-desktop { display: none !important; }
.cta-mobile { display: block; }

/* Mobile: hide static badge until the floater disappears on scroll */
@media (max-width: 1023px) {
  .cta-mobile { display: none; }
  body.scrolled .cta-mobile { display: block; }
}

.hero-blurb {
  max-width: 820px;
  margin: 12px auto 0;
  font-size: clamp(16px, 2vw, 18px);
  color: var(--text-dim);
}

/* Features */
.stats { padding-block: 24px 14px; }
.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  text-align: center;
  justify-items: center; /* center columns */
}

.stat-value {
  font-weight: 800;
  letter-spacing: -0.015em;
  font-size: clamp(36px, 6vw, 64px);
}

.stat-label {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: clamp(14px, 2.2vw, 18px);
}

@media (min-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
}

.features {
  padding-block: 44px 24px; /* more separation from neighbors */
}

.features-grid {
  display: grid;
  gap: 28px; /* slightly larger gutters */
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .hero-head {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 16px;
  }
  .hero-titles { text-align: left; }
  .cta-desktop { display: inline-block !important; }
  .cta-mobile { display: none !important; }
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
  box-shadow: none;
  padding: 12px 14px; /* more breathing room so images aren't flush */
}

.feature-card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: transparent;
  border-radius: 14px; /* soften image edges without a card */
}

.feature-card h3 {
  margin: 14px 16px 8px;
  font-size: 20px;
}

.feature-card p {
  margin: 0 16px 16px;
  color: var(--text-dim);
  font-size: 15px;
}

/* Why section */
.why {
  padding-block: 40px 56px; /* more vertical rhythm */
  background: transparent; /* ensure single background */
}

/* Reviews */
.reviews {
  padding-block: 24px 64px;
}

.reviews h2 {
  margin: 0 0 6px;
  font-size: clamp(26px, 3.5vw, 34px);
}

.reviews-sub {
  margin: 0 0 18px;
  color: var(--text-dim);
  font-size: 16px;
}

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 720px) {
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 14px 16px 16px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.stars {
  letter-spacing: 1px;
  font-size: 14px;
  margin-bottom: 8px;
}

.review-title {
  margin: 0 0 8px;
  font-size: 18px;
}

.reviewer {
  margin: 10px 0 0;
  color: var(--text-dim);
}

/* FAQ */
.faq {
  padding-block: 24px 72px;
}

.faq h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3.5vw, 34px);
}

.faq-list {
  display: grid;
  grid-template-columns: 1fr; /* always single column */
  gap: 12px;
}

.faq-item { background: transparent; border: 0; border-radius: 0; padding: 0; }
.faq-item + .faq-item { border-top: 1px solid var(--card-border); padding-top: 12px; }

.faq-item summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; align-items: center; justify-content: space-between; padding: 8px 0; }
.faq-item summary::after { content: "+"; color: var(--text); margin-left: 12px; font-weight: 700; }
.faq-item[open] summary::after { content: "×"; }

.faq-item summary::-webkit-details-marker { display: none; }

.faq-body {
  margin-top: 8px;
  color: var(--text-dim);
}

/* Make FAQ links white (not default blue) */
.faq-body a,
.faq-body a:visited {
  color: var(--text);
}

.faq-body ol {
  margin: 0 0 8px 18px;
}

.why h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3.5vw, 34px);
}

.why p {
  margin: 0;
  color: var(--text-dim);
  font-size: 16px;
  max-width: 900px;
}

/* Footer */
.site-footer { /* keep gradient continuous; single background */
  border-top: 1px solid var(--hairline); /* thin divider */
  background: transparent;
}

/* On scroll, strengthen nav readability with blur + subtle tint */
body.scrolled .top-nav {
  /* background: var(--glass-bg); */
  /* -webkit-backdrop-filter: saturate(160%) blur(12px); */
  /* backdrop-filter: saturate(160%) blur(12px); */
  /* border-bottom: 1px solid var(--hairline); */
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px 20px; /* keep container's horizontal padding */
  font-size: 14px;
}

.sitemap {
  border-top: 1px solid var(--hairline);
  padding-block: 10px 6px;
  font-size: 14px;
}
.sitemap a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.9;
  margin: 0 10px;
}
.sitemap a:first-of-type { margin-left: 0; }
.sitemap a:hover { opacity: 1; text-decoration: none; font-weight: 700; }

/* Floating App Store badge that hides once user scrolls */
.appstore-floater { display: none; position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom) + 12px); transform: translateX(-50%); z-index: 1001; opacity: 1; transition: opacity 220ms ease, transform 220ms ease; }
.appstore-floater img { display: block; width: clamp(160px, 40vw, 245px); height: auto; }
@media (max-width: 1023px) { .appstore-floater { display: block; } }
body.scrolled .appstore-floater { opacity: 0; transform: translate(-50%, 16px); pointer-events: none; }

.footer-links a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.9;
  margin-left: 14px;
}

.footer-links a:hover { opacity: 1; text-decoration: none; font-weight: 700; }

/* Global link hover: bold instead of underline */
a:hover { text-decoration: none; font-weight: 700; }

/* Prefer reduced motion */
@media (prefers-reduced-motion: no-preference) {
  .hero-image {
    transition: transform 400ms ease;
  }
  .hero-image:hover {
    transform: translateY(-2px);
  }
}
.seo-intro { padding-block: 20px 14px; }
.seo-intro h2 { margin: 0 0 8px; font-size: clamp(24px, 3.5vw, 32px); }
.seo-intro p { color: var(--text-dim); margin: 8px 0; }

.use-cases { padding-block: 28px 18px; }
.use-cases h2 { margin: 0 0 10px; font-size: clamp(24px, 3.5vw, 32px); }
.use-cases-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 720px) { .use-cases-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .use-cases-grid { grid-template-columns: repeat(3, 1fr); } }
.use-cases article { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 14px; padding: 14px 16px 16px; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.use-cases article h3 { margin: 0 0 8px; font-size: 18px; }
.use-cases article p { margin: 0; color: var(--text-dim); }
.alternatives { padding-block: 24px 16px; }
.alternatives h2 { margin: 0 0 8px; font-size: clamp(24px, 3.5vw, 32px); }
.alternatives p { margin: 8px 0; color: var(--text-dim); }
.aso-highlights { padding-block: 24px 16px; }
.aso-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 1024px) { .aso-grid { grid-template-columns: repeat(2, 1fr); } }
.aso-col h2 { margin: 0 0 10px; font-size: clamp(22px, 3.2vw, 28px); }
.checklist { margin: 0; padding-left: 0; color: var(--text-dim); list-style: none; }
.checklist li { margin: 6px 0; position: relative; padding-left: 16px; }
.checklist li::before { content: "-"; position: absolute; left: 0; color: var(--text); opacity: 0.95; }