/* ==========================================================================
   盛發省事貸 · A-Fu Design System v3 (Responsive: mobile + tablet + desktop)
   Tokens 對齊 Designer Handoff v1.0 + 加入 md/lg/xl 斷點
   ========================================================================== */
:root {
  /* Colors */
  --shiba-orange: #E8935A;
  --caramel:      #B86B3C;
  --shiba-cream:  #FBF4EA;
  --cream-2:      #F5E9D4;
  --scarf-navy:   #2E3E5C;
  --scarf-deep:   #1E2A44;
  --wax-red:      #C24D3F;
  --gold:         #C89B4A;
  --ink:          #2A241C;
  --ink-2:        #5B4E3F;
  --ink-3:        #9A8F7F;
  --paper:        #FBF7F0;
  --paper-2:      #F3EBDD;
  --line:         #E8DECB;

  /* Product accent colors */
  --p-motorcycle: #F5C542;   /* 機車:溫暖黃 */
  --p-car:        #D14A3B;   /* 汽車:紅 */
  --p-goods:      #E7A6B8;   /* 商品:柔粉 */

  /* Shadows */
  --sh-card:  0 6px 20px rgba(46,62,92,0.08);
  --sh-cta:   0 12px 24px rgba(46,62,92,0.25);
  --sh-shiba: 0 12px 30px rgba(46,62,92,0.15);
  --sh-wax:   0 4px 10px rgba(194,77,63,0.35);
  --sh-hero:  0 30px 80px -20px rgba(46,62,92,0.35);

  /* Breakpoints (JS 可讀) */
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1440px;

  /* Layout width caps */
  --container-lg: 1120px;
  --container-xl: 1280px;
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
body {
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

/* Typography helpers */
.serif  { font-family: "Noto Serif TC", "Songti TC", serif; }
.mono   { font-family: "JetBrains Mono", ui-monospace, monospace; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px; letter-spacing: 3px;
  color: var(--caramel); text-transform: uppercase;
}
.eyebrow-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--shiba-orange); }
.sec-title {
  font-family: "Noto Serif TC", serif;
  font-weight: 900; font-size: 28px; line-height: 1.3;
  color: var(--ink); letter-spacing: 1px;
  margin-bottom: 24px;
}
.sec-title em { font-style: normal; color: var(--caramel); }
.sec-sub {
  font-size: 14px; color: var(--ink-2); line-height: 1.8;
  margin: -12px 0 20px; max-width: 480px;
}

/* ============================================================
   MOBILE-FIRST PHONE FRAME
   桌面時 .phone 會展開變成 .container-lg
   ============================================================ */
.phone {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  background: var(--paper);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
@media (min-width: 480px) and (max-width: 767px) {
  body { background: #E8E1D3; padding: 20px 0; }
  .phone {
    box-shadow: 0 24px 70px rgba(0,0,0,0.12);
    border-radius: 24px;
  }
}
/* Desktop: 破除 phone 寬度限制 */
@media (min-width: 768px) {
  .phone {
    max-width: 100%;
    box-shadow: none; border-radius: 0;
  }
  body { background: var(--paper); padding: 0; }
}

/* Container helpers (桌面用) */
.container {
  width: 100%; margin: 0 auto;
  padding: 0 24px;
}
@media (min-width: 768px)  { .container { max-width: 720px;  padding: 0 32px; } }
@media (min-width: 1024px) { .container { max-width: 992px;  padding: 0 40px; } }
@media (min-width: 1280px) { .container { max-width: 1200px; padding: 0 48px; } }

/* Show/hide helpers */
.only-mobile  { display: block; }
.only-tablet-up { display: none; }
.only-desktop { display: none; }
@media (min-width: 768px) {
  .only-mobile  { display: none; }
  .only-tablet-up { display: block; }
}
@media (min-width: 1024px) {
  .only-desktop { display: block; }
}

/* ============ NAV ============ */
.sf-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px 12px;
  position: sticky; top: 0; z-index: 30;
  background: rgba(251,247,240,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}
@media (min-width: 768px) {
  .sf-nav {
    padding: 18px 40px;
    border-bottom-color: rgba(232,222,203,.5);
  }
}
.sf-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: "Noto Serif TC", serif;
  font-weight: 900; font-size: 20px;
  color: var(--scarf-navy); letter-spacing: 1px;
}
.sf-logo-mark {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--scarf-navy); color: var(--gold);
  display: grid; place-items: center;
  font-size: 16px; font-weight: 900;
}
@media (min-width: 768px) {
  .sf-logo { font-size: 22px; }
  .sf-logo-mark { width: 38px; height: 38px; font-size: 18px; }
}
.sf-nav-menu {
  width: 40px; height: 40px; border-radius: 12px;
  background: rgba(46,62,92,0.06);
  display: flex; flex-direction: column; gap: 4px;
  align-items: center; justify-content: center;
}
.sf-nav-menu span { width: 16px; height: 1.5px; background: var(--scarf-navy); border-radius: 1px; }
/* Desktop nav: 藏漢堡改成 inline menu */
.sf-nav-desktop {
  display: none;
  align-items: center; gap: 4px;
}
@media (min-width: 768px) {
  .sf-nav-menu { display: none; }
  .sf-nav-desktop { display: flex; }
}
.sf-nav-desktop a {
  padding: 10px 16px; border-radius: 12px;
  font-size: 14px; font-weight: 700; color: var(--ink-2);
  transition: background .2s, color .2s;
}
.sf-nav-desktop a:hover { background: var(--paper-2); color: var(--scarf-navy); }
.sf-nav-desktop a.cta {
  background: var(--scarf-navy); color: var(--shiba-cream);
  box-shadow: var(--sh-cta); margin-left: 12px;
}

/* ============ Buttons ============ */
.sf-btn {
  width: 100%; min-height: 56px; padding: 0 20px;
  border-radius: 18px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-size: 16px; font-weight: 700; letter-spacing: 2px;
  transition: transform .15s ease, box-shadow .2s ease, opacity .2s;
}
.sf-btn:active { transform: scale(.98); }
.sf-btn:hover { transform: translateY(-1px); }
.sf-btn:disabled { opacity: .5; cursor: not-allowed; }
.sf-btn-primary   { background: var(--scarf-navy); color: var(--shiba-cream); box-shadow: var(--sh-cta); }
.sf-btn-secondary { background: transparent; color: var(--scarf-navy); border: 1.5px solid var(--scarf-navy); }
.sf-btn-ghost     { background: rgba(46,62,92,.06); color: var(--scarf-navy); }
.sf-btn-gold      { background: var(--gold); color: var(--scarf-deep); box-shadow: 0 12px 24px rgba(200,155,74,.28); }
.sf-btn-inline    { width: auto; padding: 0 24px; min-height: 48px; font-size: 15px; }
.sf-btn svg       { width: 18px; height: 18px; }

/* Pills */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 20px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px; letter-spacing: 2px;
}
.pill-orange { background: rgba(232,147,90,0.14); color: var(--caramel); }
.pill-orange::before { content: ""; width: 6px; height: 6px; background: var(--shiba-orange); border-radius: 50%; }
.pill-live {
  background: rgba(30,42,68,0.85); color: var(--shiba-cream);
  backdrop-filter: blur(10px);
}
.pill-live::before {
  content: ""; width: 6px; height: 6px; background: #7ED4A0; border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(126,212,160,0.3);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 3px rgba(126,212,160,0.3); }
  50%     { box-shadow: 0 0 0 6px rgba(126,212,160,0.1); }
}

/* Cards */
.sf-card {
  background: #fff; border-radius: 20px;
  border: 1px solid var(--line); padding: 20px;
}
.sf-card-lg { border-radius: 24px; padding: 24px; }
@media (min-width: 768px) { .sf-card { padding: 28px; } .sf-card-lg { padding: 40px; } }
.sf-card-flat { background: var(--paper); border-radius: 16px; border: 1px solid var(--line); padding: 16px; }

/* Sections */
.sf-sec { padding: 40px 24px; background: var(--paper); }
.sf-sec-alt { background: var(--paper-2); }
.sf-sec-tight { padding-top: 8px; }
@media (min-width: 768px) {
  .sf-sec { padding: 72px 40px; }
}
@media (min-width: 1024px) {
  .sf-sec { padding: 96px 0; }
}

/* Form controls */
.sf-input, .sf-select {
  width: 100%; padding: 14px 16px;
  border-radius: 14px; border: 1.5px solid var(--line);
  background: #fff; font-size: 15px; color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.sf-input:focus, .sf-select:focus {
  outline: 0; border-color: var(--scarf-navy);
  box-shadow: 0 0 0 3px rgba(46,62,92,.12);
}
.sf-input.otp {
  text-align: center; letter-spacing: .6em;
  font-family: "JetBrains Mono", monospace;
  font-size: 22px; font-weight: 700;
}
.sf-label {
  display: block; font-size: 12px; color: var(--ink-3);
  font-family: "JetBrains Mono", monospace; letter-spacing: 1.5px;
  margin-bottom: 6px; text-transform: uppercase;
}

/* Slider */
.sf-range {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; border-radius: 3px;
  background: rgba(46,62,92,0.15); outline: none;
}
.sf-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--scarf-navy);
  box-shadow: 0 4px 8px rgba(0,0,0,.1); cursor: pointer;
}
.sf-range::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--scarf-navy);
  box-shadow: 0 4px 8px rgba(0,0,0,.1); cursor: pointer;
}

/* Mascot animations */
@keyframes float-y { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.mascot-float { animation: float-y 3.5s ease-in-out infinite; }

@keyframes fade-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fade-up .5s ease-out both; }

@keyframes tilt {
  0%,100% { transform: rotate(-3deg); }
  50%     { transform: rotate(3deg); }
}
.mascot-tilt { animation: tilt 6s ease-in-out infinite; }

/* Toast */
.toast-wrap { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 8px; width: min(360px, calc(100% - 32px)); }
.toast {
  padding: 14px 18px; border-radius: 14px;
  background: #fff; box-shadow: var(--sh-card);
  font-size: 14px; font-weight: 600;
  border-left: 4px solid var(--scarf-navy);
  animation: fade-up .3s ease-out;
}
.toast.ok  { border-left-color: #4a9d6f; color: #2a5c43; }
.toast.err { border-left-color: var(--wax-red); color: #7a2e26; }

/* Home indicator (mobile 專用) */
.home-indicator {
  height: 34px; background: var(--scarf-deep);
  display: flex; align-items: center; justify-content: center;
}
.home-indicator span {
  width: 134px; height: 5px; background: var(--shiba-cream);
  border-radius: 3px; opacity: 0.4;
}
@media (min-width: 768px) {
  .home-indicator { display: none; }
}

/* ============================================================
   Grid helpers 桌面用
   ============================================================ */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 20px; }
.grid-4 { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; gap: 32px; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (min-width: 1024px) {
  .grid-2 { gap: 56px; }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Product accent tint */
.tint-motorcycle { background: linear-gradient(160deg, #FFF6DA 0%, #FCE7A1 100%); }
.tint-car        { background: linear-gradient(160deg, #FBDDD8 0%, #F5B5AB 100%); }
.tint-goods      { background: linear-gradient(160deg, #FAD9E4 0%, #F1B9CE 100%); }

/* Desktop-only utility */
@media (min-width: 768px) {
  .md\:hidden { display: none; }
  .md\:block  { display: block; }
  .md\:flex   { display: flex; }
}
@media (min-width: 1024px) {
  .lg\:hidden { display: none; }
  .lg\:block  { display: block; }
}