:root {
  --vivi-green: #1f500d;
  --vivi-green-deep: #16380a;
  --vivi-green-soft: #eef4ea;
  --vivi-ink: #121212;
  --vivi-text: rgba(18, 18, 18, 0.75);
  --vivi-muted: rgba(18, 18, 18, 0.5);
  --vivi-white: #ffffff;
  --vivi-canvas: #f1f1f1;
  --vivi-line: rgba(18, 18, 18, 0.12);
  --font: "Lato", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--vivi-text);
  background: var(--vivi-canvas);
}

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

button,
input {
  font: inherit;
}

.utility-bar {
  background: var(--vivi-green);
  color: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: 10px 16px;
}

.site-header {
  background: var(--vivi-white);
  border-bottom: 1px solid var(--vivi-line);
}

.header-inner,
.page-wrap {
  width: calc(100% - 48px);
  max-width: none;
  margin: 0 auto;
}

.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-name {
  color: var(--vivi-ink);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.28em;
}

.brand-tag {
  color: var(--vivi-green);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
}

.user-chip {
  color: var(--vivi-ink);
}

.user-chip span {
  display: block;
  color: var(--vivi-muted);
  font-size: 12px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--vivi-line);
  background: var(--vivi-white);
  color: var(--vivi-ink);
  border-radius: 6px;
}

a.icon-btn {
  color: var(--vivi-ink);
}

.icon-btn:hover {
  border-color: var(--vivi-green);
  color: var(--vivi-green);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid var(--vivi-ink);
  background: var(--vivi-white);
  color: var(--vivi-ink);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  background: var(--vivi-ink);
  color: var(--vivi-white);
}

.btn-primary {
  background: var(--vivi-green);
  border-color: var(--vivi-green);
  color: var(--vivi-white);
}

.btn-primary:hover {
  background: var(--vivi-green-deep);
  border-color: var(--vivi-green-deep);
  color: var(--vivi-white);
}

.btn-ghost {
  min-height: 36px;
  padding: 0 14px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
  margin-top: 8px;
}

.page {
  padding: 36px 0 64px;
}

.page-title {
  margin: 0 0 6px;
  color: var(--vivi-ink);
  font-size: 32px;
  font-weight: 700;
}

.page-sub {
  margin: 0 0 28px;
  max-width: 720px;
}

.card {
  background: var(--vivi-white);
  border: 1px solid var(--vivi-line);
  padding: 24px;
  margin: 0 0 16px;
}

.card h2 {
  margin: 0 0 12px;
  color: var(--vivi-ink);
  font-size: 22px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
}

.muted {
  color: var(--vivi-muted);
  font-size: 14px;
  margin: 0;
}

.steps,
.card ul {
  margin: 0;
  padding-left: 20px;
}

.steps li,
.card ul li {
  margin: 10px 0;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.grid .card {
  margin: 0;
}

code {
  color: var(--vivi-green-deep);
  font-size: 0.95em;
}

.alert {
  margin-bottom: 18px;
  padding: 12px 14px;
  border: 1px solid var(--vivi-line);
  background: #fafafa;
  color: var(--vivi-ink);
  font-size: 14px;
}

.alert-error {
  border-color: #e0b4b4;
  background: #fdf4f4;
  color: #7a1f1f;
}

.login-page {
  min-height: calc(100vh - 130px);
  display: flex;
  flex-direction: column;
}

.login-main {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 48px 0;
}

.login-card {
  width: min(440px, calc(100% - 40px));
  background: var(--vivi-white);
  border: 1px solid var(--vivi-line);
  padding: 44px 40px 40px;
}

.login-card h1 {
  margin: 18px 0 8px;
  color: var(--vivi-ink);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.login-card p.lead {
  margin: 0 0 28px;
  font-size: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.field label {
  color: var(--vivi-ink);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(18, 18, 18, 0.28);
  background: var(--vivi-white);
  color: var(--vivi-ink);
}

.field input:focus {
  outline: none;
  border-color: var(--vivi-green);
}

@media (max-width: 720px) {
  .header-inner,
  .page-wrap {
    width: calc(100% - 32px);
  }

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

  .header-inner {
    min-height: 72px;
    gap: 12px;
  }

  .login-card {
    padding: 32px 22px;
  }
}