:root {
  color-scheme: light;
  --bg: #f6f2ec;
  --bg-2: #efe7dd;
  --ink: #151310;
  --muted: #5f564c;
  --accent: #d8583a;
  --accent-2: #3b6ea5;
  --card: #ffffff;
  --line: rgba(17, 14, 10, 0.12);
  --shadow: 0 22px 60px rgba(30, 24, 18, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: "Manrope", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 600px at 15% -10%, #fce9d4, transparent),
    radial-gradient(900px 500px at 90% 0%, #e3f1ff, transparent),
    var(--bg);
  min-height: 100%;
}

body {
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: "Fraunces", "Times New Roman", serif;
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}

p {
  margin: 0 0 16px;
  color: var(--muted);
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: conic-gradient(from 120deg, #f7b267, #f79d65, #e9724c, #f7b267);
  display: grid;
  place-items: center;
  color: #231b12;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fffaf6;
  box-shadow: 0 14px 30px rgba(216, 88, 58, 0.32);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--card);
  border-color: var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 36px;
  align-items: center;
  margin-top: 44px;
}

.hero-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--accent-2);
  font-weight: 700;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.feature {
  background: var(--card);
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  min-height: 140px;
}

.panel {
  background: var(--card);
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  max-width: 620px;
  margin: 32px auto 0;
}

.form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  color: var(--ink);
}

input, textarea, select {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
}

textarea {
  min-height: 90px;
  resize: vertical;
}

.app-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
}

.sidebar {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 18px;
  height: fit-content;
}

.sidebar a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 6px;
  color: var(--muted);
}

.sidebar a.active,
.sidebar a:hover {
  background: rgba(216, 88, 58, 0.08);
  color: var(--ink);
}

.card {
  background: var(--card);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 18px;
}

.invoice-list {
  display: grid;
  gap: 12px;
}

.invoice-row {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.7fr 0.7fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(59, 110, 165, 0.12);
  color: #274c73;
  font-size: 0.8rem;
  font-weight: 600;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.items-table {
  display: grid;
  gap: 10px;
}

.item-row {
  display: grid;
  grid-template-columns: 1.6fr 0.6fr 0.6fr 0.6fr auto;
  gap: 8px;
  align-items: center;
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.notice {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(216, 88, 58, 0.25);
  background: rgba(216, 88, 58, 0.08);
  color: #6f2d1d;
}

.success {
  border-color: rgba(35, 125, 70, 0.3);
  background: rgba(35, 125, 70, 0.08);
  color: #1f5a35;
}

.footer {
  text-align: center;
  margin-top: 60px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .app-shell {
    grid-template-columns: 1fr;
  }
  .invoice-row {
    grid-template-columns: 1fr 1fr;
  }
  .item-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-links {
    flex-wrap: wrap;
  }
  .hero-card {
    padding: 20px;
  }
}