:root {
  color-scheme: light;
  --navy: #082d5c;
  --hero: #062b5b;
  --accent: #008f87;
  --accent-dark: #00756f;
  --surface: #ffffff;
  --bg: #f3f7f4;
  --text: #1c2938;
  --muted: #607086;
  --line: #d9e4dc;
  --input-bg: #ffffff;
  --soft: #f7faf8;
  --button-bg: #ffffff;
  --button-hover: #f2f7f4;
  --button-border: #b9c9be;
  --danger: #b42318;
  --danger-hover: #8f1b13;
  --danger-bg: #fff1f0;
  --danger-border: #f5c1bd;
  --success: #16794b;
  --success-bg: #ecfdf3;
  --success-border: #b7ebcf;
  --focus: rgba(47, 133, 84, .24);
  --glow: rgba(0, 176, 165, .2);
  --radius: 14px;
  --shadow: 0 20px 54px rgba(6, 43, 91, .17);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --navy: #eef7f1;
  --hero: #041a35;
  --accent: #35c8bf;
  --accent-dark: #55d8cf;
  --surface: #101e2c;
  --bg: #07111e;
  --text: #e8eef5;
  --muted: #a9b7c7;
  --line: #273b4e;
  --input-bg: #0a1724;
  --soft: #142638;
  --button-bg: #142536;
  --button-hover: #1b3044;
  --button-border: #3b5267;
  --danger: #ff8b82;
  --danger-hover: #ffaaa3;
  --danger-bg: #351b1a;
  --danger-border: #71312d;
  --success: #78d8a1;
  --success-bg: #102b1e;
  --success-border: #275b3f;
  --focus: rgba(53, 200, 191, .3);
  --glow: rgba(26, 126, 166, .27);
  --shadow: 0 20px 60px rgba(0, 0, 0, .38);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --navy: #eef7f1;
    --hero: #041a35;
    --accent: #35c8bf;
    --accent-dark: #55d8cf;
    --surface: #101e2c;
    --bg: #07111e;
    --text: #e8eef5;
    --muted: #a9b7c7;
    --line: #273b4e;
    --input-bg: #0a1724;
    --soft: #142638;
    --button-bg: #142536;
    --button-hover: #1b3044;
    --button-border: #3b5267;
    --danger: #ff8b82;
    --danger-hover: #ffaaa3;
    --danger-bg: #351b1a;
    --danger-border: #71312d;
    --success: #78d8a1;
    --success-bg: #102b1e;
    --success-border: #275b3f;
    --focus: rgba(53, 200, 191, .3);
    --glow: rgba(26, 126, 166, .27);
    --shadow: 0 20px 60px rgba(0, 0, 0, .38);
  }
}

* { box-sizing: border-box; }

html {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 76% 4%, var(--glow) 0, transparent 30rem),
    linear-gradient(180deg, var(--hero) 0 270px, var(--bg) 270px);
  transition: background-color .2s ease, color .2s ease;
}

.shell {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 48px;
}

.topbar {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(3, 27, 57, .12);
  padding: 7px 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  border-radius: 10px;
}

.brand:focus-visible,
.theme-toggle:focus-visible,
.button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.brand-logo-frame {
  display: block;
  width: 112px;
  height: 41px;
  overflow: hidden;
}

.brand-logo {
  display: block;
  width: 112px;
  height: 112px;
  transform: translateY(-37px);
}

.theme-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-width: 92px;
  border: 1px solid var(--button-border);
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--text);
  padding: 9px 13px;
  font: inherit;
  font-size: .88rem;
  font-weight: 750;
  cursor: pointer;
}

.theme-ready .theme-toggle { display: inline-flex; }
.theme-toggle:hover { background: var(--button-hover); }
.theme-icon { width: 1.1rem; font-size: 1.08rem; line-height: 1; text-align: center; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

.login-card { width: min(460px, 100%); margin: clamp(12px, 2.5vh, 26px) auto 0; }
.wide-card { width: 100%; }
.confirm-card { width: min(620px, 100%); margin: 6vh auto 0; }

h1 {
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  line-height: 1.15;
  margin: .2rem 0 1rem;
  color: var(--navy);
  overflow-wrap: anywhere;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.intro { color: var(--muted); line-height: 1.65; margin-bottom: 24px; }
.form-stack { display: grid; gap: 18px; }

label { display: grid; gap: 7px; font-size: .92rem; font-weight: 700; }

input {
  width: 100%;
  border: 1px solid var(--button-border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text);
  padding: 12px 13px;
  font: inherit;
}

input:focus { border-color: var(--accent); outline: 3px solid var(--focus); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid var(--button-border);
  border-radius: 10px;
  background: var(--button-bg);
  color: var(--navy);
  padding: 10px 15px;
  font: inherit;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.button:hover { background: var(--button-hover); }
.button:disabled { cursor: not-allowed; opacity: .58; }
.button-primary { border-color: var(--accent); background: var(--accent); color: #fff; }
.button-primary:hover { background: var(--accent-dark); }
.button-danger { border-color: var(--danger); background: var(--danger); color: #fff; }
.button-danger:hover { background: var(--danger-hover); }
.button-danger-outline { border-color: var(--danger-border); color: var(--danger); }
.button-small { padding: 7px 10px; font-size: .82rem; }

.alert { margin: 18px 0; border-radius: 10px; padding: 12px 14px; line-height: 1.45; }
.alert-error { border: 1px solid var(--danger-border); background: var(--danger-bg); color: var(--danger); }
.alert-success { border: 1px solid var(--success-border); background: var(--success-bg); color: var(--success); }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.toolbar, .confirm-actions, .actions { display: flex; align-items: center; gap: 9px; }
.toolbar form, .confirm-actions form { margin: 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { border-bottom: 1px solid var(--line); padding: 13px 12px; text-align: left; vertical-align: top; }
th { background: var(--soft); color: var(--muted); font-size: .76rem; letter-spacing: .05em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
.subject { min-width: 180px; overflow-wrap: anywhere; }
.empty { border: 1px dashed var(--button-border); border-radius: 12px; padding: 38px; color: var(--muted); text-align: center; }

dl {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 10px 16px;
  margin: 24px 0;
  border-radius: 12px;
  background: var(--soft);
  padding: 18px;
}

dt { color: var(--muted); font-weight: 750; }
dd { margin: 0; overflow-wrap: anywhere; }
.confirm-actions { justify-content: flex-end; margin-top: 24px; }
.magic-status { margin: 15px 0 0; color: var(--muted); font-size: .84rem; line-height: 1.5; }
.manual-login { margin: 18px 0 0; font-size: .88rem; text-align: center; }
.manual-login a { color: var(--accent); font-weight: 700; }

@media (max-width: 760px) {
  .shell { width: min(100% - 20px, 1040px); padding-top: 12px; }
  .topbar { margin-bottom: 10px; }
  .brand-logo-frame { width: 104px; height: 38px; }
  .brand-logo { width: 104px; height: 104px; transform: translateY(-34px); }
  .theme-toggle { min-width: 0; }
  .card { padding: 22px; }
  .login-card, .confirm-card { margin-top: 10px; }
  .page-head { display: grid; }
  .toolbar { width: 100%; flex-wrap: wrap; }
  .table-wrap { overflow: visible; border: 0; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  tr { margin-bottom: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); padding: 8px; }
  td { display: grid; grid-template-columns: 92px 1fr; gap: 10px; border: 0; padding: 7px 8px; }
  td::before { content: attr(data-label); color: var(--muted); font-size: .76rem; font-weight: 800; text-transform: uppercase; }
  .actions { align-items: flex-start; flex-wrap: wrap; }
  .actions::before { width: 82px; }
  dl { grid-template-columns: 72px 1fr; }
  .confirm-actions { flex-wrap: wrap; justify-content: stretch; }
  .confirm-actions > * { flex: 1; }
  .confirm-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}