/* ============================================================
   Lucky Cat Puzzle — landing page styles
   Design language: warm rice-paper light theme, imperial
   cinnabar + gold accents, serif display + clean sans.
   ============================================================ */

   :root {
    --paper:      #fbf6ec;
    --paper-2:    #f4ead5;
    --paper-3:    #efe2c6;
    --ink:        #2b1d12;
    --ink-soft:   #6f5c46;
    --ink-faint:  #9c8870;
    --cinnabar:   #b8392a;
    --cinnabar-d: #962a1d;
    --gold:       #c08a2d;
    --gold-soft:  #e6c36f;
    --line:       #e7d8b8;
    --card:       #ffffff;
    --shadow-sm:  0 4px 14px rgba(43, 29, 18, .08);
    --shadow-md:  0 14px 40px rgba(43, 29, 18, .12);
    --shadow-lg:  0 30px 70px rgba(43, 29, 18, .18);
    --radius:     18px;
    --font-display: 'Fraunces', 'Georgia', serif;
    --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  }
  
  * { box-sizing: border-box; margin: 0; padding: 0; }
  
  html { scroll-behavior: smooth; overflow-x: hidden; }
  
  body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--paper);
    /* subtle paper grain */
    background-image:
      radial-gradient(circle at 20% 10%, rgba(192,138,45,.06), transparent 40%),
      radial-gradient(circle at 80% 90%, rgba(184,57,42,.05), transparent 45%);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  
  /* Prevent grid/flex blowout from long words */
  .hero-copy, .hero-visual { min-width: 0; }
  h1, h2, h3, p { overflow-wrap: break-word; }
  
  .container {
    width: min(1180px, 92%);
    margin: 0 auto;
  }
  .container.narrow { max-width: 760px; }
  
  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: .95rem;
    padding: .7rem 1.3rem;
    border-radius: 999px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
    white-space: nowrap;
  }
  .btn i { width: 18px; height: 18px; }
  .btn-lg { padding: .95rem 1.7rem; font-size: 1.02rem; }
  
  .btn-primary {
    background: var(--cinnabar);
    color: #fff8ec;
    box-shadow: 0 8px 22px rgba(184,57,42,.32);
  }
  .btn-primary:hover {
    background: var(--cinnabar-d);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(184,57,42,.4);
  }
  
  .btn-ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--ink);
  }
  .btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }
  
  .btn-dark {
    background: var(--ink);
    color: #fbf6ec;
    box-shadow: var(--shadow-sm);
  }
  .btn-dark:hover { transform: translateY(-2px); background: #17100a; box-shadow: var(--shadow-md); }
  
  /* ---------- Navbar ---------- */
  .navbar {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    padding: .9rem 0;
    transition: background .25s ease, box-shadow .25s ease, padding .25s ease;
  }
  .navbar.scrolled {
    background: rgba(251,246,236,.92);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(43,29,18,.08);
    padding: .55rem 0;
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
  }
  .brand { display: flex; align-items: center; gap: .65rem; }
  .brand-icon { width: 40px; height: 40px; border-radius: 11px; box-shadow: var(--shadow-sm); }
  .brand-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -.01em;
  }
  .brand-text em { color: var(--cinnabar); font-style: italic; }
  
  .nav-links { display: flex; align-items: center; gap: 1.6rem; }
  .nav-links a {
    font-weight: 500;
    color: var(--ink-soft);
    font-size: .95rem;
    transition: color .15s;
  }
  .nav-links a:hover { color: var(--cinnabar); }
  .nav-cta { color: #fff8ec !important; }
  
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--ink);
  }
  .nav-toggle i { width: 26px; height: 26px; }
  
  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    padding: 9rem 0 6rem;
    overflow: hidden;
  }
  .roofline {
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 90px;
    z-index: 0;
  }
  .hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 3rem;
    align-items: center;
  }
  
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--cinnabar);
    margin-bottom: 1.1rem;
  }
  .eyebrow i { width: 15px; height: 15px; }
  
  .hero h1 {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.3rem, 5.2vw, 4.1rem);
    line-height: 1.04;
    letter-spacing: -.02em;
    margin-bottom: 1.3rem;
  }
  .gold-script {
    font-style: italic;
    font-weight: 600;
    background: linear-gradient(120deg, var(--cinnabar) 0%, var(--gold) 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
  }
  .lede {
    font-size: 1.12rem;
    color: var(--ink-soft);
    max-width: 520px;
    margin-bottom: 1.8rem;
  }
  
  .hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 1.8rem; }
  
  .hero-meta {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1.4rem;
    color: var(--ink-faint);
    font-size: .9rem;
  }
  .hero-meta li { display: flex; align-items: center; gap: .4rem; }
  .hero-meta i { width: 15px; height: 15px; color: var(--gold); }
  
  /* Phone mockup */
  .hero-visual { position: relative; display: flex; justify-content: center; }
  .phone-frame {
    width: min(320px, 80%);
    aspect-ratio: 9 / 19.4;
    border-radius: 42px;
    padding: 10px;
    background: var(--ink);
    box-shadow: var(--shadow-lg), inset 0 0 0 2px rgba(255,255,255,.08);
    position: relative;
  }
  .phone-frame img {
    width: 100%; height: 100%;
    object-fit: cover;
    border-radius: 34px;
  }
  .badge-float {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    background: var(--card);
    border: 1px solid var(--line);
    padding: .5rem .9rem;
    border-radius: 999px;
    font-size: .85rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
  }
  .badge-float i { width: 15px; height: 15px; color: var(--gold); }
  .badge-1 { top: 8%; left: -4%; animation: floaty 4s ease-in-out infinite; }
  .badge-2 { bottom: 12%; right: -4%; animation: floaty 4s ease-in-out infinite 1.2s; }
  
  @keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
  }
  
  /* ---------- Sections ---------- */
  .section { padding: 6rem 0; }
  .section-head { text-align: center; max-width: 680px; margin: 0 auto 3rem; }
  .section-head h2, .download-card h2, .faq h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.9rem, 3.6vw, 2.7rem);
    line-height: 1.1;
    letter-spacing: -.01em;
    margin-bottom: .9rem;
  }
  .section-head h2 em, .download-card h2 em, .faq h2 em {
    font-style: italic;
    color: var(--cinnabar);
  }
  .section-head p { color: var(--ink-soft); }
  
  /* ---------- Features ---------- */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.3rem;
  }
  .feature-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.8rem 1.4rem;
    position: relative;
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s;
  }
  .feature-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--cinnabar), var(--gold));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
  }
  .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
  .feature-card:hover::before { transform: scaleX(1); }
  .feature-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    background: var(--paper-2);
    color: var(--cinnabar);
    display: grid;
    place-items: center;
    margin-bottom: 1.1rem;
  }
  .feature-icon i { width: 24px; height: 24px; }
  .feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.18rem;
    margin-bottom: .55rem;
  }
  .feature-card p { color: var(--ink-soft); font-size: .93rem; }
  
  /* ---------- Showcase ---------- */
  .showcase { background: var(--paper-2); }
  .shot-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    align-items: stretch;
  }
  .shot {
    background: var(--card);
    border-radius: var(--radius);
    padding: .7rem .7rem .9rem;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: transform .25s ease, box-shadow .25s;
  }
  .shot:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
  .shot img {
    width: 100%;
    aspect-ratio: 9 / 19.5;       /* preserve phone screenshot ratio */
    object-fit: cover;
    border-radius: 12px;
    background: var(--paper-3);
  }
  .shot-tall img { aspect-ratio: 9 / 19.5; }
  .shot figcaption {
    margin-top: .7rem;
    text-align: center;
    font-size: .85rem;
    color: var(--ink-faint);
  }
  
  /* ---------- Download ---------- */
  .download-card {
    background:
      radial-gradient(circle at 15% 20%, rgba(230,195,111,.35), transparent 45%),
      radial-gradient(circle at 85% 80%, rgba(184,57,42,.12), transparent 45%),
      var(--card);
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
  }
  .download-icon {
    width: 84px; height: 84px;
    margin: 0 auto 1.4rem;
    border-radius: 22px;
    box-shadow: var(--shadow-md);
  }
  .download-card p { color: var(--ink-soft); max-width: 520px; margin: 0 auto 1.8rem; }
  .download-buttons { display: flex; flex-wrap: wrap; gap: .9rem; justify-content: center; }
  .download-note {
    display: inline-flex; align-items: center; gap: .4rem;
    margin-top: 1.3rem; color: var(--ink-faint);
  }
  .download-note i { width: 14px; height: 14px; }
  
  /* ---------- FAQ ---------- */
  .faq-list { display: flex; flex-direction: column; gap: .9rem; }
  .faq-list details {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1.1rem 1.3rem;
  }
  .faq-list summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-family: var(--font-display);
    font-size: 1.05rem;
  }
  .faq-list summary::-webkit-details-marker { display: none; }
  .faq-list summary i { width: 18px; height: 18px; color: var(--cinnabar); transition: transform .2s; }
  .faq-list details[open] summary i { transform: rotate(45deg); }
  .faq-list details p { margin-top: .7rem; color: var(--ink-soft); font-size: .95rem; }
  
  /* ---------- Footer ---------- */
  .footer {
    background: var(--ink);
    color: #e9dcc4;
    padding: 2.2rem 0;
    margin-top: 2rem;
  }
  .footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    align-items: center;
    justify-content: space-between;
  }
  .footer-brand { display: flex; align-items: center; gap: .8rem; font-size: .9rem; color: #c9b89a; }
  .footer-brand .brand-icon { width: 32px; height: 32px; border-radius: 8px; }
  .footer-links { display: flex; flex-wrap: wrap; gap: 1.5rem; font-size: .9rem; }
  .footer-links a { color: #e9dcc4; transition: color .15s; }
  .footer-links a:hover { color: var(--gold-soft); }
  
  /* ---------- Modal ---------- */
  .modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; }
  .modal[hidden] { display: none; }
  .modal-backdrop {
    position: absolute; inset: 0;
    background: rgba(28,18,10,.55);
    backdrop-filter: blur(4px);
  }
  .modal-panel {
    position: relative;
    background: var(--paper);
    border-radius: 22px;
    padding: 2.4rem 2rem 2rem;
    width: min(420px, 90%);
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: pop .25s ease;
  }
  @keyframes pop { from { transform: scale(.92); opacity: 0; } to { transform: scale(1); opacity: 1; } }
  .modal-close {
    position: absolute; top: .9rem; right: .9rem;
    background: none; border: none; cursor: pointer; color: var(--ink-faint);
  }
  .modal-icon { width: 64px; height: 64px; margin: 0 auto 1rem; border-radius: 16px; }
  .modal-panel h3 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: .6rem; }
  .modal-panel p { color: var(--ink-soft); font-size: .95rem; margin-bottom: 1.3rem; }
  
  /* ---------- Responsive ---------- */
  @media (max-width: 960px) {
    .hero { padding: 7.5rem 0 4rem; }
    .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .hero-visual { order: -1; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .shot-grid { grid-template-columns: repeat(2, 1fr); }
  }
  
  @media (max-width: 680px) {
    .nav-toggle { display: inline-flex; }
    .nav-links {
      position: absolute;
      top: 100%; left: 0; right: 0;
      background: var(--paper);
      flex-direction: column;
      padding: 1.2rem 1.5rem 1.6rem;
      gap: 1.1rem;
      border-bottom: 1px solid var(--line);
      box-shadow: var(--shadow-md);
      display: none;
    }
    .nav-links.open { display: flex; }
  
    .feature-grid { grid-template-columns: 1fr; }
    .shot-grid { grid-template-columns: 1fr; }
    .shot img { aspect-ratio: 9 / 16; }   /* slightly tighter on mobile */
    .section { padding: 4rem 0; }
    .download-card { padding: 2.8rem 1.4rem; }
    .footer-inner { flex-direction: column; text-align: center; }
  
    /* Tighten hero on phones */
    .hero { padding: 6.5rem 0 3.5rem; }
    .hero-grid { gap: 2rem; }
    .phone-frame { width: min(230px, 68%); }
    .badge-float { display: none; }
    .hero h1 { font-size: clamp(1.8rem, 8vw, 2.3rem); line-height: 1.08; }
  }