/* ===== wmgjx Tools - Shared Styles ===== */

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}

/* CSS Variables — aligned with root index.html */
:root{
  --bg:#f3f6fb; --bg-soft:#eaf0f8;
  --card-bg:#ffffff; --card-border:#e3e9f2; --card-shadow:0 2px 8px rgba(13,40,93,.06);
  --text:#0f1e3d; --text-2:#4b5a77; --text-3:#8896ad;
  --primary:#1d4ed8; --primary-2:#2563eb; --primary-soft:#e8efff;
  --accent:#0e9f6e; --accent-soft:#e2f7ef;
  --ocean:#0c4a6e; --ocean-grad:linear-gradient(135deg,#1e3a8a,#0e7490);
  --border:#e3e9f2;
  --input-bg:#fff; --input-border:#d5deea; --input-focus:#2563eb;
  --radius-lg:18px; --radius-md:14px; --radius-sm:10px;
  --result-bg:#eff6ff; --result-border:#bfdbfe;
  --notice-bg:#fff7ed; --notice-border:#fed7aa; --notice-text:#9a3412;
  --bar-bg:#e5ecf5;
}
.dark{
  --bg:#0b1220; --bg-soft:#0f1a2e;
  --card-bg:#16213a; --card-border:#24304d; --card-shadow:0 2px 10px rgba(0,0,0,.35);
  --text:#e8eef7; --text-2:#a9b6cd; --text-3:#6c7a96;
  --primary:#3b82f6; --primary-2:#60a5fa; --primary-soft:#16284e;
  --accent:#10b981; --accent-soft:#0f2b25;
  --border:#24304d;
  --input-bg:#0f1a2e; --input-border:#24304d; --input-focus:#3b82f6;
  --result-bg:#0f1a2e; --result-border:#1e3a5f;
  --notice-bg:#1a1508; --notice-border:#3d2a0a; --notice-text:#f59e0b;
  --bar-bg:#1e293b;
}

body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15px;line-height:1.6;color:var(--text);background:var(--bg);
  transition:background .3s,color .3s;
}

/* ===== Top Navigation Bar ===== */
.tools-topbar{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(243,246,251,.88);
  border-bottom:1px solid var(--border);
  transition:background .3s;
}
.dark .tools-topbar{background:rgba(11,18,32,.85)}
.tools-topbar .container{display:flex;align-items:center;gap:16px;height:56px}
.tools-topbar .logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:16px;color:var(--text);text-decoration:none}
.tools-topbar .logo .mark{width:32px;height:32px;border-radius:9px;background:var(--ocean-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900}
.tools-topbar .nav-links{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
.tools-topbar .nav-links::-webkit-scrollbar{display:none}
.tools-topbar .nav-links a{padding:6px 12px;border-radius:8px;font-size:13px;color:var(--text-2);white-space:nowrap;font-weight:500;text-decoration:none;transition:.2s}
.tools-topbar .nav-links a:hover,.tools-topbar .nav-links a.active{background:var(--primary-soft);color:var(--primary)}
.tools-topbar .top-right{display:flex;align-items:center;gap:8px}
.theme-btn{width:36px;height:36px;border-radius:9px;border:1px solid var(--border);background:var(--card-bg);color:var(--text-2);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.theme-btn:hover{color:var(--primary);border-color:var(--primary)}

/* ===== Common Layout ===== */
.container{max-width:860px;margin:0 auto;padding:0 24px}
.page-body{padding:24px 0 40px}

/* ===== Common Components ===== */
.back{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;margin-bottom:14px;text-decoration:none}
.back:hover{text-decoration:underline}

h1{font-size:26px;font-weight:800;margin-bottom:6px;color:var(--text)}
.sub{color:var(--text-2);font-size:14px;margin-bottom:22px}

.card{background:var(--card-bg);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--card-border);box-shadow:var(--card-shadow);transition:background .3s,border-color .3s}

label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin:14px 0 6px}
input,select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--input-border);border-radius:9px;font-size:15px;outline:none;
  background:var(--input-bg);color:var(--text);transition:border-color .2s,background .3s;
}
input:focus,select:focus,textarea:focus{border-color:var(--input-focus)}
select{
  -webkit-appearance:none;-moz-appearance:none;appearance:none;
  background-color:var(--input-bg);
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position:right 10px center;background-repeat:no-repeat;background-size:16px;
  padding-right:32px;
}
.dark select{
  background-color:var(--input-bg);
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position:right 10px center;background-repeat:no-repeat;background-size:16px;
  padding-right:32px;
}

.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}

.btn{
  width:100%;margin-top:20px;padding:13px;border:none;border-radius:11px;
  background:var(--ocean-grad);color:#fff;font-size:16px;font-weight:700;cursor:pointer;transition:.2s;
}
.btn:hover{opacity:.9}

/* Result / Notice */
.result{margin-top:18px;padding:16px;background:var(--result-bg);border:1px solid var(--result-border);border-radius:12px;text-align:center;transition:background .3s,border-color .3s}
.result .big{font-size:28px;font-weight:800;color:var(--primary)}
.result .hint{font-size:13px;color:var(--text-2);margin-top:4px}

.notice{margin-top:16px;padding:12px 14px;background:var(--notice-bg);border:1px solid var(--notice-border);border-radius:10px;font-size:13px;color:var(--notice-text);transition:background .3s,border-color .3s}
.notice b{color:var(--notice-text)}

/* Progress bar */
.bar{height:10px;background:var(--bar-bg);border-radius:6px;overflow:hidden;margin-top:8px;transition:background .3s}
.fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:6px;transition:width .4s}

/* Result card (container-calc) */
.rcard{border:1px solid var(--card-border);border-radius:12px;padding:16px;background:var(--bg-soft);transition:background .3s,border-color .3s}
.rcard h3{font-size:16px;font-weight:700;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.rcard .n{font-size:24px;font-weight:800;color:var(--primary)}
.rcard .pn{font-size:14px;color:var(--text-2)}
.results{margin-top:20px;display:grid;gap:14px}

/* Holiday list item */
.list .h{margin:8px 0;padding:10px 14px;background:var(--primary-soft);border-left:4px solid var(--primary);border-radius:8px;transition:background .3s}
.list .h b{font-size:15px}
.list .h span{display:block;font-size:13px;color:var(--text-2);margin-top:2px}

/* Timezone */
.cur{text-align:center;padding:10px 0 4px;font-size:20px;font-weight:800;color:var(--primary)}
.line{font-size:13px;color:var(--text-2);text-align:center;margin:4px 0}
.diff{font-size:15px;font-weight:700;color:var(--accent);text-align:center;margin-top:8px}

/* Chip / Tag */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:var(--card-bg);font-size:13px;cursor:pointer;color:var(--text-2);transition:.2s}
.chip:hover{color:var(--primary);border-color:var(--primary)}

/* HS Code list item */
.item{background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:background .3s,border-color .3s}
.item .t{font-weight:600;font-size:15px}
.item .c{font-size:14px;color:var(--primary);font-weight:700;white-space:nowrap}
.item .tax{font-size:12px;color:var(--text-3);margin-top:4px}

/* Footer */
.tools-footer{margin-top:40px;border-top:1px solid var(--border);padding:20px 0 12px;color:var(--text-3);font-size:13px;text-align:center;transition:border-color .3s}

/* Footer Navigation */
.footer-nav{margin-top:40px;padding:16px 0;border-top:1px solid var(--border)}
.footer-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:860px;margin:0 auto;padding:0 24px}
.footer-nav a{display:flex;align-items:center;gap:6px;padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;text-decoration:none;transition:all .2s}
.footer-prev{background:var(--bg-soft);color:var(--text-2);border:1px solid var(--card-border)}
.footer-prev:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.footer-next{background:var(--primary);color:#fff;border:1px solid var(--primary)}
.footer-next:hover{background:var(--primary-2)}
.footer-home{background:var(--bg-soft);color:var(--text-2);border:1px solid var(--card-border)}
.footer-home:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.footer-disabled{background:var(--bg-soft);color:var(--text-3);border:1px solid var(--card-border);cursor:not-allowed;opacity:.5}
.footer-links{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:18px;margin-bottom:8px;padding:0 16px}
.footer-links a{font-size:13px;color:var(--text-2);text-decoration:none;transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-copy{font-size:12px;color:var(--text-3);text-align:center;padding:0 16px}
@media(max-width:720px){
  .footer-nav-inner{flex-direction:column;gap:8px}
  .footer-nav a,.footer-disabled{width:100%;justify-content:center;font-size:13px;padding:8px 14px}
}

/* Responsive */
@media(max-width:720px){
  .tools-topbar .container{gap:10px}
  .tools-topbar .nav-links a{padding:5px 8px;font-size:12px}
  h1{font-size:22px}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .row{grid-template-columns:1fr}
}