/* ========== RESET & THEME ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --sky:#eaf6ff;
  --sky-2:#d6ecff;
  --blue:#2b8cff;
  --blue-dark:#1a6ed8;
  --ink:#0f2138;
  --muted:#5b7290;
  --card:#ffffff;
  --line:#dceaf7;
  --shadow:0 2px 10px rgba(43,140,255,.08);
  --radius:14px;
  --nav-h:56px;
  --cat-h:52px;
  --bottom-h:64px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  background:linear-gradient(180deg,var(--sky) 0%,#ffffff 40%);
  color:var(--ink);
  line-height:1.55;
  padding-top:calc(var(--nav-h) + var(--cat-h));
  padding-bottom:calc(var(--bottom-h) + 16px);
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--blue-dark);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}

/* ========== NAVBAR ========== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  height:var(--nav-h);
  max-width:1100px;margin:0 auto;padding:0 16px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{
  display:flex;align-items:center;gap:8px;
  font-weight:800;font-size:1.12rem;letter-spacing:.2px;
  color:var(--ink);
}
.brand:hover{text-decoration:none}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),#7cc2ff);
  box-shadow:0 0 0 4px rgba(43,140,255,.15);
}
.menu-btn{
  width:42px;height:42px;border-radius:10px;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  background:var(--sky);
}
.menu-btn span{
  display:block;width:20px;height:2px;border-radius:2px;
  background:var(--ink);transition:.25s;
}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:absolute;top:var(--nav-h);right:12px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 8px 24px rgba(15,33,56,.12);
  padding:8px;min-width:190px;
  display:flex;flex-direction:column;
  animation:fadeDown .18s ease;
}
.drawer[hidden]{display:none}
.drawer a{
  padding:10px 12px;border-radius:8px;color:var(--ink);
  font-size:.95rem;font-weight:500;
}
.drawer a:hover{background:var(--sky);text-decoration:none}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ========== CATEGORY BAR ========== */
.catbar{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:45;
  background:rgba(234,246,255,.95);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  height:var(--cat-h);
  display:flex;align-items:center;gap:10px;
  padding:0 12px;
}
.cat-current{
  display:flex;align-items:center;gap:6px;
  font-size:.82rem;font-weight:700;color:var(--blue-dark);
  white-space:nowrap;flex-shrink:0;
  background:#fff;border:1px solid var(--line);
  padding:4px 10px;border-radius:999px;
}
.pulse{
  width:7px;height:7px;border-radius:50%;background:var(--blue);
  animation:pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
.cat-scroll{
  display:flex;gap:8px;overflow-x:auto;scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  padding:4px 2px;
  flex:1;
}
.cat-scroll::-webkit-scrollbar{display:none}
.cat-chip{
  flex-shrink:0;
  padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:.85rem;font-weight:600;color:var(--muted);
  white-space:nowrap;transition:.2s;
}
.cat-chip:hover{color:var(--blue-dark);border-color:var(--blue)}
.cat-chip.active{
  background:var(--blue);color:#fff;border-color:var(--blue);
  box-shadow:0 3px 10px rgba(43,140,255,.3);
}

/* ========== MAIN ========== */
main{max-width:900px;margin:0 auto;padding:16px 14px 0}

.hero{
  text-align:center;padding:18px 8px 22px;
}
.hero h1{
  font-size:clamp(1.5rem,5vw,2.1rem);
  font-weight:800;letter-spacing:-.5px;line-height:1.2;
  color:var(--ink);
}
.hero h1 span{
  background:linear-gradient(135deg,var(--blue),#7cc2ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{
  margin-top:8px;font-size:.92rem;color:var(--muted);
  max-width:520px;margin-left:auto;margin-right:auto;
}

/* ========== SECTION TITLES ========== */
.sec-title{
  font-size:1.1rem;font-weight:800;color:var(--ink);
  margin:22px 0 12px;padding-left:10px;
  border-left:4px solid var(--blue);line-height:1.2;
}

/* ========== CATEGORY SECTION ========== */
.cat-section{padding:4px 0 12px;scroll-margin-top:calc(var(--nav-h) + var(--cat-h) + 8px)}
.cat-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;margin-bottom:12px;
}
.cat-head h2{
  font-size:1.15rem;font-weight:800;color:var(--ink);
  display:flex;align-items:center;gap:8px;
}
.cat-head h2 .emoji{font-size:1.2rem}
.cat-count{
  font-size:.75rem;font-weight:600;color:var(--muted);
  background:var(--sky);padding:3px 10px;border-radius:999px;
}

/* ========== STYLE GRID ========== */
.style-grid{
  display:grid;grid-template-columns:1fr;gap:10px;
}
.style-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:12px 12px 10px;
  box-shadow:var(--shadow);
  transition:.18s;
  animation:fadeUp .3s ease both;
}
.style-card:hover{border-color:#b9dcff;transform:translateY(-1px)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.style-text{
  font-size:1.05rem;line-height:1.5;
  word-break:break-word;overflow-wrap:anywhere;
  color:var(--ink);
  padding:8px 10px;border-radius:10px;
  background:linear-gradient(135deg,#f7fbff,#eef7ff);
  border:1px dashed #cfe5fb;
  min-height:44px;
  display:flex;align-items:center;
  user-select:all;
  -webkit-user-select:all;
}
.style-actions{
  display:flex;gap:8px;margin-top:9px;
}
.act-btn{
  flex:1;
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  padding:8px 10px;border-radius:9px;
  font-size:.82rem;font-weight:700;
  background:var(--sky);color:var(--blue-dark);
  border:1px solid var(--line);
  transition:.15s;
}
.act-btn:hover{background:var(--sky-2)}
.act-btn.copied{background:#d9f7e3;color:#0f8a3c;border-color:#b7ebc8}
.act-btn.fav{flex:0 0 auto;padding:8px 12px}
.act-btn.fav.on{background:#ffe6ee;color:#e0336e;border-color:#ffc8d8}

/* ========== MORE BUTTON ========== */
.more-wrap{text-align:center;margin-top:12px}
.more-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 22px;border-radius:999px;
  background:var(--blue);color:#fff;
  font-size:.85rem;font-weight:700;
  box-shadow:0 4px 12px rgba(43,140,255,.3);
  transition:.18s;
}
.more-btn:hover{background:var(--blue-dark);transform:translateY(-1px)}
.more-btn.less{background:#fff;color:var(--blue-dark);border:1px solid var(--blue);box-shadow:none}

/* ========== TRENDING ========== */
.trend-wrap{margin-top:16px}
.trend-title{
  font-size:.9rem;font-weight:800;color:var(--muted);
  text-transform:uppercase;letter-spacing:.6px;
  margin-bottom:8px;display:flex;align-items:center;gap:6px;
}
.trend-grid{display:grid;grid-template-columns:1fr;gap:8px}
.trend-item{
  background:#fff;border:1px solid var(--line);border-radius:11px;
  padding:10px 12px;font-size:.95rem;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  word-break:break-word;overflow-wrap:anywhere;
  animation:fadeUp .3s ease both;
}
.trend-item .t-txt{flex:1;user-select:all;-webkit-user-select:all}
.trend-item .t-copy{
  flex-shrink:0;width:34px;height:34px;border-radius:9px;
  background:var(--sky);color:var(--blue-dark);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.9rem;transition:.15s;
}
.trend-item .t-copy:hover{background:var(--sky-2)}
.trend-item .t-copy.copied{background:#d9f7e3;color:#0f8a3c}

/* ========== FAVORITES ========== */
.fav-wrap{margin-top:8px}
.fav-wrap[hidden]{display:none}

/* ========== PAGE BLOCKS ========== */
.page-block{
  margin-top:26px;
  scroll-margin-top:calc(var(--nav-h) + var(--cat-h) + 8px);
}
.prose{font-size:.93rem;color:var(--muted);line-height:1.7}
.prose p{margin-bottom:10px}
.prose strong{color:var(--ink)}

/* ========== FAQ ========== */
.faq-list{display:flex;flex-direction:column;gap:9px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;box-shadow:var(--shadow);
}
.faq-q{
  width:100%;text-align:left;
  padding:13px 14px;font-size:.92rem;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.faq-q .arrow{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--sky);color:var(--blue-dark);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.75rem;transition:.25s;
}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease,padding .28s ease;
  font-size:.88rem;color:var(--muted);
  padding:0 14px;
}
.faq-item.open .faq-a{max-height:320px;padding:0 14px 13px}

/* ========== WHY GRID ========== */
.why-grid{display:grid;grid-template-columns:1fr;gap:10px}
.why-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:13px 14px;box-shadow:var(--shadow);
}
.why-card h3{font-size:.95rem;font-weight:800;margin-bottom:4px;color:var(--ink)}
.why-card p{font-size:.85rem;color:var(--muted)}

/* ========== TIPS ========== */
.tip-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.tip-list li{
  background:#fff;border:1px solid var(--line);border-radius:11px;
  padding:11px 13px;font-size:.88rem;color:var(--muted);
  display:flex;gap:9px;align-items:flex-start;
}
.tip-list li::before{content:"✓";color:var(--blue);font-weight:800;flex-shrink:0}

/* ========== SHARE ========== */
.share-row{display:flex;flex-wrap:wrap;gap:9px}
.share-btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 16px;border-radius:999px;
  font-size:.85rem;font-weight:700;color:#fff;
  background:var(--blue);
  transition:.18s;
}
.share-btn:hover{transform:translateY(-1px);text-decoration:none}
.share-btn.fb{background:#1877f2}
.share-btn.wa{background:#25d366}
.share-btn.tw{background:#0f1419}
.share-btn.ig{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888)}
.share-btn.cp{background:#5b7290}

/* ========== FOOTER ========== */
.footer{
  margin-top:36px;
  padding:22px 16px 26px;
  text-align:center;
  border-top:1px solid var(--line);
  background:#fff;
  font-size:.83rem;color:var(--muted);
}
.footer strong{color:var(--ink)}
.foot-links{margin-top:6px}
.foot-links a{color:var(--blue-dark)}

/* ========== FLOATING BUTTONS ========== */
.fab{
  position:fixed;right:14px;z-index:40;
  width:46px;height:46px;border-radius:50%;
  background:var(--blue);color:#fff;
  font-size:1.15rem;font-weight:700;
  box-shadow:0 6px 18px rgba(43,140,255,.4);
  display:flex;align-items:center;justify-content:center;
  transition:.2s;
}
.fab:hover{transform:translateY(-2px);background:var(--blue-dark)}
.fab-top{bottom:calc(var(--bottom-h) + 74px);opacity:0;pointer-events:none}
.fab-top.show{opacity:1;pointer-events:auto}
.fab-add{bottom:calc(var(--bottom-h) + 20px)}

/* ========== BOTTOM BAR ========== */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding:9px 12px calc(9px + env(safe-area-inset-bottom));
  box-shadow:0 -4px 20px rgba(15,33,56,.06);
}
.bb-inner{
  max-width:900px;margin:0 auto;
  display:flex;gap:9px;align-items:center;
}
.bb-input{
  flex:1;display:flex;align-items:center;gap:8px;
  background:var(--sky);
  border:1.5px solid var(--line);
  border-radius:12px;
  padding:0 10px;height:46px;
  transition:.2s;
}
.bb-input:focus-within{
  border-color:var(--blue);
  background:#fff;
  box-shadow:0 0 0 3px rgba(43,140,255,.12);
}
.bb-icon{font-size:.95rem;color:var(--blue);flex-shrink:0}
.bb-input input{
  flex:1;border:none;background:transparent;outline:none;
  font-size:1rem;color:var(--ink);min-width:0;
  font-weight:600;
}
.bb-input input::placeholder{color:#8aa4c0;font-weight:500}
.bb-clear{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:#cfe2f5;color:#4a6c8f;
  font-size:.7rem;display:none;
  align-items:center;justify-content:center;
}
.bb-input.has-value .bb-clear{display:inline-flex}
.bb-btn{
  flex-shrink:0;height:46px;padding:0 20px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--blue),#4aa3ff);
  color:#fff;font-size:.92rem;font-weight:800;
  box-shadow:0 4px 14px rgba(43,140,255,.35);
  transition:.18s;
}
.bb-btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(43,140,255,.45)}
.bb-btn:active{transform:translateY(0)}

/* ========== TOAST ========== */
.toast{
  position:fixed;left:50%;bottom:calc(var(--bottom-h) + 20px);
  transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;
  padding:10px 20px;border-radius:999px;
  font-size:.85rem;font-weight:600;
  z-index:80;opacity:0;pointer-events:none;
  transition:.28s;
  box-shadow:0 8px 24px rgba(15,33,56,.3);
  white-space:nowrap;max-width:90vw;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ========== TABLET ========== */
@media(min-width:600px){
  .style-grid{grid-template-columns:1fr 1fr}
  .trend-grid{grid-template-columns:1fr 1fr}
  .why-grid{grid-template-columns:1fr 1fr}
  .hero p{font-size:1rem}
}

/* ========== DESKTOP ========== */
@media(min-width:900px){
  main{padding:20px 20px 0}
  .style-grid{grid-template-columns:1fr 1fr 1fr}
  .hero{padding:32px 8px 30px}
  .fab{right:calc(50% - 470px)}
}
@media(min-width:1100px){
  .fab{right:calc(50% - 560px)}
}


/* ========== PAGE STYLES (about, contact, privacy, terms) ========== */
.page-body {
  padding-top: var(--nav-h);
  padding-bottom: 0;
}
.page-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 18px 40px;
}
.back-link {
  display: inline-block;
  font-size: .88rem;
  font-weight: 600;
  color: var(--blue-dark);
  margin-bottom: 18px;
}
.back-link:hover { text-decoration: none; opacity: .8; }

.page-title {
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 6px;
  letter-spacing: -.4px;
}
.page-sub {
  font-size: .92rem;
  color: var(--muted);
  margin-bottom: 24px;
}
.page-prose {
  font-size: .95rem;
  line-height: 1.75;
  color: #33465c;
}
.page-prose h2 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink);
  margin: 26px 0 8px;
  padding-left: 10px;
  border-left: 4px solid var(--blue);
}
.page-prose h2:first-child { margin-top: 0; }
.page-prose p { margin-bottom: 12px; }
.page-prose a { color: var(--blue-dark); font-weight: 600; }
.page-prose strong { color: var(--ink); }

.prose-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.prose-list li {
  position: relative;
  padding-left: 22px;
  font-size: .92rem;
  color: #33465c;
}
.prose-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 800;
}

/* Contact cards */
.contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 18px 0 24px;
}
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: .2s;
}
.contact-card:hover {
  transform: translateY(-2px);
  border-color: #b9dcff;
}
.contact-icon {
  font-size: 1.6rem;
  margin-bottom: 6px;
}
.contact-card h3 {
  font-size: .98rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 4px;
}
.contact-card p {
  font-size: .86rem;
  color: var(--muted);
  margin: 0;
}
.contact-card a { color: var(--blue-dark); font-weight: 600; }

@media (min-width: 600px) {
  .contact-cards { grid-template-columns: 1fr 1fr 1fr; }
  .page-wrap { padding: 32px 20px 50px; }
}