:root {
  color-scheme: light dark;
  --bg: #09111f;
  --bg-soft: #0f1730;
  --panel: rgba(12, 21, 40, 0.82);
  --panel-strong: rgba(15, 24, 43, 0.96);
  --panel-border: rgba(140, 160, 210, 0.16);
  --text: #ecf1ff;
  --muted: #a7b2cf;
  --input: #121c33;
  --line: rgba(167, 178, 207, 0.14);
  --accent: #7c9cff;
  --accent-strong: #97abff;
  --accent-soft: rgba(124, 156, 255, 0.18);
  --success: #62d7aa;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(124, 156, 255, 0.22), transparent 26%),
    radial-gradient(circle at right, rgba(98, 215, 170, 0.1), transparent 18%),
    linear-gradient(180deg, #07101c, #0d1528 55%, #08111f);
  color: var(--text);
}

body.modal-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.security-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(5, 10, 20, 0.76);
  backdrop-filter: blur(10px);
}

.security-modal[hidden] {
  display: none;
}

.security-dialog {
  width: min(720px, 100%);
  padding: 32px;
  border: 1px solid var(--panel-border);
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(18, 26, 49, 0.98), rgba(10, 16, 31, 0.98));
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.security-title,
.section-title,
.sidebar-title,
.hero-title,
.auth-title {
  margin: 0;
}

.security-title {
  font-size: clamp(28px, 5vw, 42px);
}

.security-copy,
.security-detail,
.auth-copy,
.history-copy,
.auth-user,
.history-empty,
.lede,
.preview-copy,
.preview-note,
.section-subvalue,
.hero-meta,
.metric-copy,
.nav-caption {
  color: var(--muted);
  line-height: 1.6;
}

.security-copy {
  margin: 12px 0 0;
  max-width: 58ch;
}

.security-detail {
  margin: 12px 0 0;
  font-size: 13px;
}

.modal-auth-form {
  margin-top: 24px;
}

.shell {
  width: min(1440px, calc(100% - 32px));
  margin: 20px auto;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 30px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.sidebar {
  position: sticky;
  top: 20px;
  height: fit-content;
  padding: 24px;
  background: linear-gradient(180deg, rgba(13, 23, 43, 0.98), rgba(10, 16, 30, 0.92));
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--success));
  color: #08111f;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.sidebar-title {
  font-size: 22px;
}

.eyebrow,
.auth-eyebrow,
.metric-label {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sidebar-nav {
  margin-top: 28px;
  display: grid;
  gap: 10px;
}

.nav-item {
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
  transition: 140ms ease;
}

.nav-item:hover,
.nav-item.active {
  color: var(--text);
  border-color: rgba(124, 156, 255, 0.18);
  background: rgba(124, 156, 255, 0.1);
}

.sidebar-card,
.auth-card,
.history-card,
.form-card,
.preview-panel,
.hero-card {
  padding: 24px;
}

.sidebar-card {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.02);
}

.sidebar-actions,
.auth-actions {
  margin-top: 18px;
}

.sidebar-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.sidebar-list li + li {
  margin-top: 10px;
}

.dashboard {
  display: grid;
  gap: 24px;
}

.hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.85fr);
  gap: 22px;
  background:
    radial-gradient(circle at top right, rgba(124, 156, 255, 0.2), transparent 28%),
    linear-gradient(180deg, rgba(14, 23, 43, 0.96), rgba(11, 17, 31, 0.96));
}

.hero-title {
  margin-top: 4px;
  max-width: 16ch;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 0.98;
}

.lede {
  margin: 14px 0 0;
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 26px;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  font-weight: 700;
}

.hero-link.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #08111f;
  border-color: transparent;
}

.hero-link.secondary {
  background: rgba(255, 255, 255, 0.04);
}

.hero-stats {
  display: grid;
  gap: 14px;
}

.metric-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.03);
}

.metric-value {
  display: block;
  font-size: 24px;
  line-height: 1.1;
}

.metric-copy {
  display: block;
  margin-top: 8px;
  font-size: 14px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.82fr);
  gap: 24px;
}

.main-column,
.side-column {
  display: grid;
  gap: 24px;
  align-content: start;
}

.panel-header h1,
.preview-panel h2 {
  margin: 0;
}

.section-title {
  margin-top: 4px;
  font-size: 28px;
}

.auth-title {
  font-size: 24px;
}

.auth-copy {
  margin: 8px 0 0;
}

.auth-user {
  margin: 10px 0 0;
}

#access-summary {
  font-weight: 700;
}

.receipt-form {
  margin-top: 26px;
}

.receipt-form.is-locked {
  opacity: 0.58;
}

.grid {
  display: grid;
  gap: 16px;
  margin-bottom: 16px;
}

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  display: block;
}

label span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 14px;
}

input,
select,
button {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line);
  font: inherit;
}

input,
select {
  padding: 14px 16px;
  background: var(--input);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(124, 156, 255, 0.15);
}

.actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

button {
  max-width: 240px;
  padding: 15px 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #0c1223;
  font-weight: 800;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
  box-shadow: 0 10px 24px rgba(124, 156, 255, 0.28);
}

button:hover {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

.ghost-button {
  background: transparent;
  color: var(--text);
  box-shadow: none;
}

.status-message {
  margin: 0;
  color: var(--muted);
}

.history-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.history-copy {
  margin: 0;
  max-width: 34ch;
  text-align: right;
}

.history-empty {
  margin-top: 18px;
}

.history-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.history-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.history-item strong,
.history-item span {
  display: block;
}

.history-item strong {
  font-size: 14px;
}

.history-item span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.history-meta {
  text-align: right;
}

.preview-panel {
  background:
    linear-gradient(180deg, rgba(15, 24, 43, 0.98), rgba(10, 16, 29, 0.96));
}

.preview-header {
  margin-bottom: 20px;
}

.phone-frame {
  width: min(100%, 430px);
  margin: 0 auto;
  padding: 18px;
  border-radius: 40px;
  background: #050914;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.email-card {
  padding: 30px 24px 28px;
  border-radius: 28px;
  background: linear-gradient(180deg, #131b31, #0f1528);
  text-align: center;
}

.preview-badge {
  display: inline-block;
  max-width: 240px;
  padding: 12px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  color: #11141d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.preview-logo {
  width: 140px;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 18px auto 0;
  border-radius: 16px;
  background: #fff;
  padding: 12px;
}

.preview-title {
  margin: 28px auto 12px;
  max-width: 260px;
  font-size: clamp(28px, 6vw, 42px);
  line-height: 0.98;
}

.preview-copy {
  margin: 0 auto;
  max-width: 260px;
}

.receipt-block {
  margin-top: 34px;
}

.receipt-block.compact {
  margin-top: 32px;
}

.section-label {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
}

.section-value,
.section-subvalue,
.hero-meta {
  margin: 0;
}

.section-value {
  font-size: 15px;
  color: var(--text);
  line-height: 1.45;
}

.section-subvalue {
  margin-top: 2px;
}

.hero-amount {
  display: block;
  margin-top: 26px;
  font-size: clamp(38px, 8vw, 58px);
  font-weight: 800;
  line-height: 1;
}

.hero-meta {
  margin-top: 10px;
  font-size: 15px;
}

.details-list {
  margin: 34px 0 0;
  text-align: left;
}

.details-list div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.details-list dt {
  color: var(--muted);
}

.details-list dd {
  margin: 0;
  text-align: right;
}

.preview-note {
  margin: 22px 0 0;
  text-align: left;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #eef2f8;
    --bg-soft: #ffffff;
    --panel: rgba(255, 255, 255, 0.84);
    --panel-strong: rgba(255, 255, 255, 0.96);
    --panel-border: rgba(77, 97, 142, 0.12);
    --text: #152035;
    --muted: #5d6985;
    --input: #f8faff;
    --line: rgba(93, 105, 133, 0.16);
    --accent-soft: rgba(124, 156, 255, 0.12);
    --shadow: 0 24px 60px rgba(34, 54, 92, 0.14);
  }

  body {
    background:
      radial-gradient(circle at top left, rgba(124, 156, 255, 0.18), transparent 26%),
      linear-gradient(180deg, #f5f8fd, #e9eef8 58%, #eef3fa);
  }

  .security-dialog,
  .sidebar,
  .hero-card,
  .preview-panel {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 245, 252, 0.98));
  }

  .sidebar-card,
  .metric-card {
    background: rgba(21, 32, 53, 0.02);
  }

  .phone-frame {
    background: #d8deea;
    border-color: rgba(21, 32, 53, 0.08);
  }

  .email-card {
    background: linear-gradient(180deg, #ffffff, #f4f7fc);
  }

  .preview-badge {
    background: #11141d;
    color: #f5f7fb;
  }
}

@media (max-width: 1180px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .hero-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 1440px);
    margin: 10px auto 20px;
  }

  .security-dialog,
  .sidebar,
  .hero-card,
  .form-card,
  .auth-card,
  .history-card,
  .preview-panel {
    padding: 18px;
  }

  .two-up,
  .three-up {
    grid-template-columns: 1fr;
  }

  .actions,
  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .history-header,
  .history-item {
    flex-direction: column;
  }

  .history-copy,
  .history-meta {
    text-align: left;
  }

  button,
  .hero-link {
    max-width: none;
  }
}