:root {
  --navy-950: #000814;
  --navy-900: #001d3d;
  --navy-800: #003566;
  --navy-700: #0a2c52;
  --gold-500: #ffc300;
  --gold-400: #ffd60a;
  --text: #eaf0f8;
  --muted: #9db2ce;
  --dim: #62789a;
  --line: rgba(159, 184, 222, 0.2);
  --line-strong: rgba(159, 184, 222, 0.36);
  --danger: #ff8d8d;
  --success: #72d8ad;
  --radius: 14px;
  color-scheme: dark;
  font-family: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--navy-950); }
body { margin: 0; color: var(--text); background: var(--navy-950); font-size: 16px; line-height: 1.55; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, summary { -webkit-tap-highlight-color: transparent; }

.auth-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 195, 0, 0.13), transparent 32rem),
    linear-gradient(145deg, var(--navy-950), var(--navy-900));
}

.auth-shell {
  width: min(100% - 40px, 520px);
  min-height: 100vh;
  margin-inline: auto;
  padding: clamp(40px, 8vh, 88px) 0;
  display: grid;
  align-content: center;
  gap: 24px;
}

.auth-brand, .app-brand { display: inline-flex; flex-direction: column; text-decoration: none; width: fit-content; }
.brand-name { color: var(--text); font-weight: 750; letter-spacing: -0.02em; }
.brand-subtitle, .eyebrow {
  color: var(--gold-500);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.brand-subtitle { margin-top: 2px; font-size: 0.64rem; letter-spacing: 0.28em; }

.auth-card, .panel, .status-card {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(0, 53, 102, 0.34), rgba(0, 8, 20, 0.88));
}
.auth-card { padding: clamp(28px, 6vw, 48px); box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28); }
.auth-back { width: fit-content; color: var(--muted); font-size: 0.9rem; text-decoration: none; }
.auth-back:hover { color: var(--gold-500); }

.card-heading h1, .page-heading h1 { margin: 8px 0 10px; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.05; letter-spacing: -0.035em; }
.card-heading p, .page-heading p, .section-heading p, .status-card p { color: var(--muted); margin: 0; }
.card-heading { margin-bottom: 28px; }

.form-stack { display: grid; gap: 18px; }
.form-stack label, .form-grid label { display: grid; gap: 7px; }
.form-stack label > span, .form-grid label > span { color: var(--muted); font-size: 0.88rem; font-weight: 650; }
input, select, textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  padding: 10px 13px;
  color: var(--text);
  background: var(--navy-950);
  outline: none;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--gold-500); box-shadow: 0 0 0 3px rgba(255, 195, 0, 0.13); }
.form-meta { display: flex; justify-content: flex-end; margin-top: -7px; }
.form-meta a { color: var(--muted); font-size: 0.9rem; text-underline-offset: 3px; }
.form-meta a:hover { color: var(--gold-500); }

.button {
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 10px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text);
  background: transparent;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}
.button:hover { border-color: var(--gold-500); color: var(--gold-500); }
.button--primary { border-color: var(--gold-500); color: var(--navy-950); background: var(--gold-500); }
.button--primary:hover { color: var(--navy-950); background: var(--gold-400); }
.button--secondary { width: 100%; }
.button--small { min-height: 34px; padding: 5px 11px; font-size: 0.78rem; }
.button:disabled, button[aria-busy="true"] { opacity: 0.68; cursor: wait; }
.button.is-loading::before { content: ""; width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 0.7s linear infinite; }

.notice { margin-bottom: 20px; border: 1px solid var(--line-strong); border-radius: 9px; padding: 12px 14px; color: var(--muted); background: rgba(0, 8, 20, 0.8); }
.notice--error { border-color: rgba(255, 141, 141, 0.5); color: #ffd2d2; }
.notice--success { border-color: rgba(114, 216, 173, 0.5); color: #bff3dc; }
.notice--warning { border-color: rgba(255, 195, 0, 0.45); color: #ffe792; }
.notice ul { margin: 8px 0 0; padding-left: 20px; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 280px minmax(0, 1fr); }
.sidebar { min-height: 100vh; padding: 30px 24px; border-right: 1px solid var(--line); background: var(--navy-950); }
.app-brand { margin: 2px 8px 34px; }
.app-nav { display: flex; flex-direction: column; gap: 4px; }
.app-nav a, .nav-pending, .nav-primary { min-height: 40px; padding: 8px 12px; border-radius: 8px; display: flex; align-items: center; color: var(--muted); text-decoration: none; }
.app-nav a:hover { color: var(--text); background: rgba(0, 53, 102, 0.45); }
.app-nav .nav-primary { color: var(--navy-950); background: var(--gold-500); font-weight: 750; }
.nav-heading { margin: 22px 12px 5px; color: var(--dim); font: 600 0.68rem/1.2 "JetBrains Mono", ui-monospace, monospace; letter-spacing: 0.16em; text-transform: uppercase; }
.nav-pending { color: #526784; cursor: not-allowed; }

.app-main { min-width: 0; background: linear-gradient(145deg, rgba(0, 53, 102, 0.18), transparent 32rem), var(--navy-900); }
.app-topbar { min-height: 76px; padding: 14px clamp(20px, 4vw, 52px); display: flex; justify-content: space-between; align-items: center; gap: 20px; border-bottom: 1px solid var(--line); background: rgba(0, 8, 20, 0.72); }
.app-topbar > div { display: flex; flex-direction: column; }
.app-topbar strong { font-size: 1.05rem; }

.user-menu { position: relative; }
.user-menu summary { min-width: 180px; padding: 7px 10px; display: grid; cursor: pointer; list-style: none; text-align: right; }
.user-menu summary::-webkit-details-marker { display: none; }
.user-menu summary span { font-weight: 700; }
.user-menu summary small { color: var(--gold-500); }
.user-menu__panel { position: absolute; z-index: 10; top: calc(100% + 8px); right: 0; width: 210px; padding: 8px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--navy-950); box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35); }
.user-menu__panel a, .user-menu__panel button { width: 100%; min-height: 38px; padding: 8px 10px; display: flex; align-items: center; border: 0; border-radius: 6px; color: var(--muted); background: transparent; text-decoration: none; cursor: pointer; }
.user-menu__panel a:hover, .user-menu__panel button:hover { color: var(--gold-500); background: var(--navy-900); }

.content-shell { width: min(100%, 1380px); margin-inline: auto; padding: clamp(32px, 5vw, 68px); }
.page-heading { max-width: 820px; margin-bottom: 42px; }
.page-heading--compact h1 { font-size: clamp(2rem, 4vw, 2.7rem); }
.status-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.status-card { min-height: 200px; padding: 24px; display: flex; flex-direction: column; }
.status-card__label { color: var(--gold-500); font: 600 0.7rem/1.2 "JetBrains Mono", ui-monospace, monospace; letter-spacing: 0.14em; text-transform: uppercase; }
.status-card strong { margin: auto 0 9px; font-size: 1.3rem; }
.quick-actions { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 12px; }
.heading-with-action { max-width: none; display: flex; justify-content: space-between; align-items: end; gap: 24px; }
.heading-with-action h1 { margin-bottom: 10px; }

.section-block { padding: clamp(22px, 3vw, 34px); margin-bottom: 24px; }
.section-heading { margin-bottom: 24px; display: flex; justify-content: space-between; align-items: end; gap: 24px; }
.section-heading h2 { margin: 5px 0 0; font-size: 1.45rem; }
.section-heading p { max-width: 620px; }
.form-grid { display: grid; grid-template-columns: 1fr 1.2fr 150px auto; gap: 16px; align-items: end; }
.form-grid__action { display: flex; padding-bottom: 1px; }
.form-narrow { max-width: 680px; padding: 28px; }
.form-details label, .invoice-item label, .payment-form label { display: grid; gap: 7px; }
.form-details label > span, .invoice-item label > span, .payment-form label > span { color: var(--muted); font-size: 0.88rem; font-weight: 650; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.field-span-2 { grid-column: span 2; }
.form-actions { margin-top: 22px; display: flex; justify-content: flex-end; gap: 12px; }
.form-actions--inline { margin-top: 0; align-items: center; }
.filter-tabs { margin: -18px 0 22px; display: flex; flex-wrap: wrap; gap: 7px; }
.filter-tabs a { padding: 7px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); text-decoration: none; }
.filter-tabs a:hover, .filter-tabs .is-active { border-color: var(--gold-500); color: var(--gold-500); }
.empty-state { padding: 45px 20px; text-align: center; }
.empty-state h3 { margin: 0 0 6px; }
.empty-state p, .muted { margin: 0; color: var(--muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 1020px; }
th, td { padding: 15px 12px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--dim); font: 600 0.68rem/1.2 "JetBrains Mono", ui-monospace, monospace; letter-spacing: 0.1em; text-transform: uppercase; }
td { color: var(--muted); font-size: 0.88rem; }
td strong, td small { display: block; }
td strong { color: var(--text); }
td small { margin-top: 3px; color: var(--dim); }
.badge { margin: 0 5px 5px 0; padding: 3px 8px; display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 0.72rem; }
.badge--success { border-color: rgba(114, 216, 173, 0.4); color: var(--success); }
.badge--warning { border-color: rgba(255, 195, 0, 0.45); color: var(--gold-500); }
.badge--muted { color: var(--dim); }
.inline-form { display: flex; gap: 6px; }
.inline-form select { min-height: 34px; width: 96px; padding: 4px 8px; font-size: 0.78rem; }
.action-list { display: grid; gap: 5px; }
.link-button { border: 0; padding: 0; color: var(--muted); background: transparent; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; text-align: left; }
.link-button:hover { color: var(--gold-500); }
.action-list a { color: var(--muted); text-underline-offset: 3px; }
.action-list a:hover, .table-link:hover { color: var(--gold-500); }
.table-link { color: var(--text); font-weight: 750; text-underline-offset: 3px; }
.align-right { text-align: right; }
.badge--draft { color: var(--muted); }
.badge--open { border-color: rgba(255, 195, 0, 0.45); color: var(--gold-500); }
.badge--paid { border-color: rgba(114, 216, 173, 0.4); color: var(--success); }
.badge--cancelled { color: var(--danger); }
.badge--large { padding: 7px 13px; font-size: 0.82rem; }
.invoice-form { display: grid; }
.invoice-items { display: grid; gap: 12px; }
.invoice-item { padding: 16px; display: grid; grid-template-columns: minmax(240px, 2fr) 100px 100px 150px 100px 38px; gap: 10px; align-items: end; border: 1px solid var(--line); border-radius: 10px; background: rgba(0, 8, 20, 0.35); }
.item-remove { width: 38px; height: 46px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); background: transparent; cursor: pointer; font-size: 1.35rem; }
.item-remove:hover { border-color: var(--danger); color: var(--danger); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.key-values { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.key-values div { display: grid; gap: 3px; }
.key-values span, .invoice-totals span { color: var(--muted); font-size: 0.84rem; }
.invoice-totals { width: min(100%, 390px); margin: 25px 0 0 auto; display: grid; gap: 8px; }
.invoice-totals div { display: flex; justify-content: space-between; gap: 24px; }
.invoice-totals .invoice-total { margin-top: 7px; padding-top: 12px; border-top: 1px solid var(--line-strong); font-size: 1.2rem; }
.action-panel { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.action-panel h2 { margin: 0 0 4px; }
.action-panel p { margin: 0; color: var(--muted); }
.payment-form { display: grid; grid-template-columns: 220px minmax(240px, 1fr) auto; align-items: end; gap: 14px; }
.upload-panel { max-width: 760px; display: grid; gap: 24px; }
.file-field { min-height: 190px; padding: 28px; display: grid; place-content: center; gap: 10px; border: 1px dashed var(--line-strong); border-radius: 12px; text-align: center; }
.file-field input { padding: 9px; background: rgba(0, 8, 20, 0.65); }
.file-field small { color: var(--muted); }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
fieldset:disabled { opacity: 0.82; }
.year-select { min-width: 170px; display: flex; align-items: end; gap: 8px; }
.year-select label { flex: 1; }
.year-select label { display: grid; gap: 4px; }
.year-select span { color: var(--muted); font-size: 0.78rem; }
.eur-categories { margin-top: 24px; }
.legal-note { color: var(--dim); font-size: 0.82rem; }
.field-help { color: var(--dim); font-size: 0.78rem; }
.checkbox-field { grid-template-columns: 22px 1fr; align-items: start; }
.checkbox-field input { width: 20px; min-height: 20px; margin-top: 2px; }
.checkbox-field span { color: var(--text); }
.inline-edit { display: grid; grid-template-columns: minmax(150px, .8fr) minmax(240px, 1.2fr) auto; gap: 8px; }

@media (max-width: 1080px) {
  .app-shell { grid-template-columns: 230px minmax(0, 1fr); }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .field-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .invoice-item { grid-template-columns: minmax(200px, 2fr) 90px 90px 135px 90px 38px; overflow-x: auto; }
  .form-grid__action { align-self: end; }
  .status-grid { grid-template-columns: 1fr; }
  .status-card { min-height: 150px; }
}

@media (max-width: 760px) {
  .app-shell { display: block; }
  .sidebar { min-height: auto; padding: 20px; border-right: 0; border-bottom: 1px solid var(--line); }
  .app-brand { margin-bottom: 18px; }
  .app-nav { display: grid; grid-template-columns: 1fr 1fr; }
  .app-nav .nav-heading, .app-nav .nav-pending { display: none; }
  .app-topbar { padding: 12px 20px; }
  .app-topbar .eyebrow { display: none; }
  .user-menu summary { min-width: 0; }
  .content-shell { padding: 30px 20px 50px; }
  .section-heading { display: block; }
  .section-heading p { margin-top: 10px; }
  .form-grid { grid-template-columns: 1fr; }
  .field-grid, .field-grid--3, .detail-grid { grid-template-columns: 1fr; }
  .field-span-2 { grid-column: auto; }
  .heading-with-action, .action-panel { align-items: stretch; flex-direction: column; }
  .heading-with-action .button { width: 100%; }
  .payment-form { grid-template-columns: 1fr; }
  .invoice-item { grid-template-columns: 1fr 1fr; }
  .invoice-item .item-description { grid-column: span 2; }
  .item-remove { width: 100%; }
  .form-grid__action .button { width: 100%; }
}

@media (max-width: 520px) {
  .auth-shell { width: min(100% - 28px, 520px); }
  .auth-card { padding: 24px 20px; }
  .app-topbar strong { font-size: 0.92rem; }
  .user-menu summary span { max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

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

@keyframes spin { to { transform: rotate(360deg); } }