:root {
  --bg-color: #ffffff;
  --text-color: #000000;
  --text-secondary: #555555;
  --border-color: #cccccc;
  --border-hover: #000000;
  --bg-alt: #f8f8f8;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 120px 40px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 500;
  margin-top: 0;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 400;
}

h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 60px;
  margin-bottom: 40px;
  color: var(--text-color);
}

p {
  margin-top: 0;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

a {
  color: var(--text-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Forms */
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 16px 0;
  font-family: var(--font-family);
  font-size: 1.1rem;
  border: none;
  border-bottom: 1px solid var(--border-color);
  background-color: transparent;
  color: var(--text-color);
  box-sizing: border-box;
  margin-bottom: 40px;
  border-radius: 0;
  appearance: none;
  -webkit-appearance: none;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-bottom-color: var(--text-color);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.helper-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: -16px;
  margin-bottom: 24px;
  display: block;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--text-color);
  background-color: var(--bg-color);
  color: var(--text-color);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: all 0.2s ease;
  border-radius: 0;
}

.btn:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--text-color);
  color: var(--bg-color);
}

.btn-primary:hover {
  background-color: var(--bg-color);
  color: var(--text-color);
}

.btn-outline {
  border-color: var(--border-color);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--text-color);
  color: var(--text-color);
  background-color: transparent;
}

.btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

/* Form layout */
.form-group {
  margin-bottom: 100px;
  padding-bottom: 60px;
}

.form-group:not(:last-child) {
  border-bottom: 1px solid var(--border-color);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

/* Lists */
.dynamic-list {
  margin-bottom: 24px;
}

.list-item {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.list-item input {
  margin-bottom: 0;
}

.btn-remove {
  padding: 0 16px;
  border: 1px solid var(--border-color);
  background: transparent;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.btn-remove:hover {
  border-color: var(--text-color);
  color: var(--text-color);
}

.btn-add {
  margin-top: 8px;
  font-size: 0.85rem;
  padding: 8px 16px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-color);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  max-width: 600px;
  width: 100%;
  padding: 40px;
}

.modal-content h2 {
  color: var(--text-color);
  font-weight: 500;
  margin-bottom: 40px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.modal-content ul {
  padding-left: 0;
  list-style-type: none;
  margin-bottom: 60px;
  color: var(--text-color);
}

.modal-content li {
  margin-bottom: 16px;
  font-size: 1.1rem;
  padding-left: 24px;
  position: relative;
}

.modal-content li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--text-secondary);
}

/* Utilities */
.text-center {
  text-align: center;
}

.mt-80 {
  margin-top: 80px;
}

.mb-40 {
  margin-bottom: 40px;
}

.divider {
  border-top: 1px solid var(--border-color);
  margin: 40px 0;
}

/* Document Style */
.document-header {
  border: 1px solid var(--text-color);
  padding: 40px;
  margin-bottom: 80px;
}

.document-header h1 {
  font-size: 2rem;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.document-header p {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

.document-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  font-family: monospace;
  font-size: 1rem;
  color: var(--text-color);
  border-top: 1px solid var(--text-color);
  border-bottom: 1px solid var(--text-color);
  padding: 24px 0;
  margin-bottom: 80px;
}

.section-content {
  font-size: 1.1rem;
  line-height: 1.8;
}

.determination {
  font-size: 1.5rem;
  font-weight: 500;
  text-align: center;
  text-transform: uppercase;
  padding: 40px;
  border: 2px solid var(--text-color);
  margin: 80px 0;
  letter-spacing: 0.1em;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 32px;
}

.tab {
  padding: 12px 24px;
  cursor: pointer;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tab.active {
  color: var(--text-color);
  border-bottom-color: var(--text-color);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Plan card */
.plan-card {
  border: 1px solid var(--border-color);
  padding: 40px;
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--text-color);
}

.plan-features {
  color: var(--text-secondary);
}