:root {
  --bg: #0e1420;
  --bg-grad: radial-gradient(1200px 600px at 80% -10%, rgba(37, 99, 235, 0.14), transparent 60%);
  --panel: #161d2c;
  --panel-2: #1d2637;
  --border: #26304a;
  --text: #e6ebf5;
  --muted: #8b97b3;
  --accent: #3b82f6;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  --hover: rgba(59, 130, 246, 0.08);
}

html[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-grad: radial-gradient(1200px 600px at 80% -10%, rgba(37, 99, 235, 0.08), transparent 60%);
  --panel: #ffffff;
  --panel-2: #f0f3f9;
  --border: #dbe2ee;
  --text: #182034;
  --muted: #5c6b85;
  --accent: #2563eb;
  --accent-2: #16a34a;
  --danger: #dc2626;
  --warn: #d97706;
  --shadow: 0 8px 30px rgba(30, 41, 70, 0.12);
  --hover: rgba(37, 99, 235, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scrollbar-color: var(--border) transparent; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  transition: background-color 0.25s, color 0.25s;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(8px);
}

.brand { font-size: 19px; font-weight: 800; letter-spacing: 0.4px; white-space: nowrap; display: flex; align-items: center; gap: 8px; }
.brand span { color: var(--accent); }
.brand-logo { height: 32px; width: auto; max-width: 120px; object-fit: contain; display: none; border-radius: 4px; }

.tabs { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.tab {
  background: none;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  transition: all 0.15s;
  white-space: nowrap;
}
.tab:hover { color: var(--text); background: var(--panel-2); }
.tab.active { color: var(--accent); background: var(--hover); border-color: var(--border); }

.hamburger, .theme-toggle {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 9px;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
}
.hamburger:hover, .theme-toggle:hover { border-color: var(--accent); }
.theme-toggle { display: inline-flex; }

main { padding: 24px; max-width: 1440px; margin: 0 auto; }

.view-title { font-size: 22px; font-weight: 800; margin-bottom: 4px; }
.view-sub { color: var(--muted); font-size: 13px; margin-bottom: 20px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}

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

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.stat .label { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.6px; font-weight: 700; }
.stat .value { font-size: 24px; font-weight: 800; margin-top: 6px; }
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 700; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.5px; background: var(--panel-2); }
tbody tr { transition: background 0.12s; }
tbody tr:hover { background: var(--hover); }

.section-label {
  font-weight: 800;
  font-size: 14px;
  color: var(--accent);
  margin: 18px 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label::before { content: ""; width: 4px; height: 16px; background: var(--accent); border-radius: 2px; }

button.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.15s, transform 0.05s;
  font-family: inherit;
}
button.btn:hover { filter: brightness(1.1); }
button.btn:active { transform: scale(0.98); }
button.btn:disabled { opacity: 0.5; cursor: not-allowed; }
button.btn.ghost { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
button.btn.danger { background: var(--danger); }
button.btn.small { padding: 4px 10px; font-size: 12px; }
button.btn.success { background: var(--accent-2); color: #06230f; }
html[data-theme="light"] button.btn.success { color: #05330f; }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }

input, select, textarea {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 9px;
  font-size: 13px;
  font-family: inherit;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
input.num, td input { text-align: right; }

label.field { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--muted); font-weight: 600; }
label.field input, label.field select { font-size: 13px; color: var(--text); }

.badge { padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.badge.ok { background: rgba(34,197,94,0.15); color: var(--accent-2); }
.badge.warn { background: rgba(245,158,11,0.15); color: var(--warn); }
.badge.danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge.info { background: rgba(59,130,246,0.15); color: var(--accent); }
.badge.muted { background: var(--panel-2); color: var(--muted); }

.empty { color: var(--muted); text-align: center; padding: 32px; font-size: 14px; }

.mut { color: var(--muted); }
.right { text-align: right; }
.money { font-variant-numeric: tabular-nums; }
.green { color: var(--accent-2); }
.red { color: var(--danger); }
.warnc { color: var(--warn); }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(5,8,15,0.55);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px; z-index: 100; overflow-y: auto;
  animation: fadeIn 0.15s;
}
.modal {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; padding: 24px; width: 100%; max-width: 720px;
  box-shadow: 0 24px 70px rgba(0,0,0,0.4);
  animation: slideUp 0.18s;
}
.modal.wide { max-width: 1100px; }
.modal h3 { font-size: 17px; font-weight: 800; margin-bottom: 16px; }
.modal .actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }

/* Spreadsheet editing */
.editable input, .editable select {
  width: 100%; background: transparent; border: 1px solid transparent;
  padding: 6px; border-radius: 6px;
}
.editable input:hover, .editable select:hover { border-color: var(--border); }
.editable input:focus, .editable select:focus { border-color: var(--accent); background: var(--panel-2); }

/* Tracking timeline */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.tl-item { position: relative; padding: 8px 0 8px 8px; }
.tl-item::before {
  content: ""; position: absolute; left: -23px; top: 12px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--panel); border: 2px solid var(--accent);
}
.tl-item .tl-time { font-size: 12px; color: var(--muted); }
.tl-item .tl-status { font-weight: 700; font-size: 13px; }
.tl-item .tl-desc { font-size: 13px; color: var(--muted); margin-top: 2px; }

.toast {
  position: fixed; bottom: 20px; right: 20px; background: var(--panel-2);
  border: 1px solid var(--border); border-left: 4px solid var(--accent);
  padding: 12px 16px; border-radius: 11px; font-size: 13px; z-index: 200;
  box-shadow: var(--shadow); max-width: 360px;
  animation: slideUp 0.18s;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--accent-2); }

.ship-card { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.ship-meta { flex: 1; min-width: 260px; }

.detail-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.pos-rel { position: relative; }

.footer-note { color: var(--muted); font-size: 12px; margin-top: 12px; line-height: 1.5; }

.clickable { cursor: pointer; }
.clickable:hover { color: var(--accent); }

.user-chip { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.chip-logo { height: 44px; width: auto; max-width: 110px; object-fit: contain; border-radius: 8px; }
.chip-name { font-size: 13px; font-weight: 700; }
.chip-role { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); background: var(--hover); border: 1px solid var(--border); padding: 2px 8px; border-radius: 20px; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 70vh; }
.login-card { width: 100%; max-width: 380px; margin: 0 auto; }
.login-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; margin-bottom: 22px; }
.login-brand .brand-logo { height: 34px; }
.login-brand .login-proc { color: var(--accent); }
.login-card h2 { font-size: 20px; }

.stars { color: var(--warn); letter-spacing: 1px; font-size: 13px; }
.star-btn { background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; padding: 0 2px; }
.star-btn.on { color: var(--warn); }
.star-btn:hover { color: var(--warn); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* Mobile */
html { -webkit-tap-highlight-color: transparent; }

@media (max-width: 900px) {
  .topbar { gap: 8px; padding: 8px 12px; position: relative; }
  .brand { font-size: 16px; position: absolute; left: 50%; transform: translateX(-50%); }
  .brand span { display: none; }
  .brand-logo { height: 28px; max-width: 90px; }
  .hamburger { display: inline-flex; order: 1; }
  .user-chip { order: 3; margin-left: auto; }
  .theme-toggle { margin-left: 2px; order: 4; }
  .tabs {
    display: none;
    position: fixed; top: 58px; left: 8px; right: 8px;
    flex-direction: column; gap: 2px; padding: 8px;
    background: var(--panel); border: 1px solid var(--border);
    border-radius: 14px; box-shadow: var(--shadow); z-index: 59;
  }
  .tabs.open { display: flex; }
  .tab { text-align: left; padding: 12px 14px; font-size: 14px; }

  .user-chip { gap: 6px; }
  .chip-logo { height: 38px; max-width: 90px; }
  .chip-name { font-size: 12px; max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .chip-role { display: none; }

  main { padding: 12px; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .card { padding: 12px; overflow-x: auto; }
  table { min-width: 100%; }
  th, td { white-space: nowrap; }
  .view-title { font-size: 19px; }
  .view-sub { font-size: 12px; margin-bottom: 14px; }
  .section-label { font-size: 13px; }

  .toolbar { gap: 8px; }
  .toolbar .btn { flex: 1 1 auto; }
  .detail-row { gap: 6px; }

  .modal-backdrop { padding: 0; align-items: stretch; }
  .modal {
    max-width: 100%;
    border-radius: 16px 16px 0 0;
    padding: 18px;
    margin-top: auto;
    max-height: 92vh;
    overflow-y: auto;
  }
  .stat { padding: 14px; }
  .stat .value { font-size: 20px; }

  .login-card { margin: 20px auto; }
  .timeline { padding-left: 24px; }
}

@media (max-width: 480px) {
  .brand { font-size: 14px; }
  .grid-4 { grid-template-columns: 1fr; }
  .hamburger, .theme-toggle { width: 38px; height: 38px; }
  .toast { left: 12px; right: 12px; bottom: 12px; max-width: none; }
  .detail-row { gap: 5px; }
  .detail-row .btn { padding: 6px 9px; font-size: 11.5px; }
}