/* ─────────────────────────────────────────
   FONTS
───────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=DM+Mono:wght@400;500&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,400&display=swap');

/* ─────────────────────────────────────────
   CSS VARIABLES
───────────────────────────────────────── */
:root {
  --ink:       #0f1923;
  --ink-mid:   #3a4a5c;
  --ink-muted: #7a8fa6;
  --paper:     #f6f4ef;
  --paper-alt: #edeae3;
  --green:     #1a5c3a;
  --green-lt:  #2a7a4f;
  --green-bg:  #eaf4ee;
  --red:       #b91c1c;
  --red-bg:    #fef2f2;
  --border:    #d4cfc6;
  --white:     #ffffff;
  --shadow:    0 1px 3px rgba(15,25,35,0.08), 0 4px 16px rgba(15,25,35,0.05);
  --radius:    6px;
  --font-head: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;
}

/* ─────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; }

/* ─────────────────────────────────────────
   UTILITY — COLLAPSE
───────────────────────────────────────── */
.is-off { display: none !important; }
.is-on  { display: block; }

/* ─────────────────────────────────────────
   LAYOUT
───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

/* ─────────────────────────────────────────
   HEADER
───────────────────────────────────────── */
.site-header {
  background: var(--ink);
  color: var(--white);
  padding: 14px 0;
  border-bottom: 3px solid var(--green);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.site-logo {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--white);
  letter-spacing: 0.01em;
}

.site-logo span {
  color: #6ee7a0;
}

.site-tagline {
  font-size: 0.78rem;
  color: #8faab8;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ─────────────────────────────────────────
   AD SLOTS (collapsed by default)
───────────────────────────────────────── */
.ad-slot {
  width: 100%;
  text-align: center;
  background: transparent;
}

.ad-slot-top,
.ad-slot-bottom {
  display: block;
}

.sponsor-bar {
  background: #fffbea;
  border: 1px solid #f0d060;
  border-radius: var(--radius);
  padding: 10px 16px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--ink-mid);
  margin: 16px 0;
}

/* ─────────────────────────────────────────
   HERO / INTRO
───────────────────────────────────────── */
.tool-hero {
  background: var(--ink);
  color: var(--white);
  padding: 48px 0 40px;
}

.tool-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.15;
  margin-bottom: 12px;
  color: var(--white);
}

.tool-hero p {
  font-size: 1rem;
  color: #9db8c8;
  max-width: 560px;
  font-weight: 300;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(110,231,160,0.12);
  border: 1px solid rgba(110,231,160,0.3);
  color: #6ee7a0;
}

/* ─────────────────────────────────────────
   CALCULATOR CARD
───────────────────────────────────────── */
.calc-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  margin: 32px 0;
}

.calc-card h2 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  margin-bottom: 24px;
  color: var(--ink);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

/* ─────────────────────────────────────────
   FORM
───────────────────────────────────────── */
.form-section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin: 24px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--paper-alt);
}

.form-section-label:first-of-type { margin-top: 0; }

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

@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
  .calc-card { padding: 20px; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field.full-width { grid-column: 1 / -1; }

label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-mid);
}

label .req {
  color: var(--green);
  margin-left: 2px;
}

label .opt {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--ink-muted);
}

input[type="text"],
select {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

select {
  font-family: var(--font-body);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a8fa6' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

input:focus, select:focus {
  border-color: var(--green-lt);
  box-shadow: 0 0 0 3px rgba(26,92,58,0.1);
  background: var(--white);
}

input.input-error, select.input-error {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(185,28,28,0.08);
}

.field-hint {
  font-size: 0.75rem;
  color: var(--ink-muted);
  line-height: 1.4;
}

.field-error {
  font-size: 0.75rem;
  color: var(--red);
  min-height: 1em;
}

/* dollar prefix wrapper */
.input-prefix {
  position: relative;
}

.input-prefix::before {
  content: "$";
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  pointer-events: none;
}

.input-prefix input {
  padding-left: 24px;
}

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.btn-row {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn-primary {
  flex: 1;
  min-width: 160px;
  background: var(--green);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 13px 24px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.15s, transform 0.1s;
}

.btn-primary:hover { background: var(--green-lt); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  background: transparent;
  color: var(--ink-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 20px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.btn-secondary:hover {
  border-color: var(--ink-mid);
  color: var(--ink);
}

/* ─────────────────────────────────────────
   RESULTS SECTION
───────────────────────────────────────── */
#results {
  margin: 0 0 32px;
}

.results-title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--ink);
  margin-bottom: 20px;
}

/* Summary cards */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.summary-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.summary-card .card-label {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.07em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.summary-card .card-value {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--ink);
}

.summary-card.highlight {
  background: var(--ink);
  border-color: var(--ink);
}

.summary-card.highlight .card-label { color: #8faab8; }
.summary-card.highlight .card-value { color: #6ee7a0; }

/* Details accordion */
.details-block {
  background: var(--paper-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}

.details-toggle {
  width: 100%;
  background: none;
  border: none;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-mid);
  text-align: left;
}

.details-toggle .toggle-icon {
  font-size: 0.8rem;
  transition: transform 0.2s;
  color: var(--ink-muted);
}

.details-toggle[aria-expanded="true"] .toggle-icon { transform: rotate(180deg); }

.details-body {
  padding: 0 16px 16px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.85rem;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.detail-row:last-child { border-bottom: none; }

.detail-row .d-label { color: var(--ink-mid); }
.detail-row .d-value {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
}

/* Quarterly table */
.quarterly-table-wrap {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.quarterly-table-wrap h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  padding: 14px 16px;
  background: var(--ink);
  color: var(--white);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead th {
  background: var(--paper-alt);
  padding: 10px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.07em;
  color: var(--ink-muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

tbody tr { border-bottom: 1px solid var(--paper-alt); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--paper); }

td {
  padding: 12px 16px;
  color: var(--ink);
}

td.amount {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--green);
  text-align: right;
}

.dates-note {
  font-size: 0.75rem;
  color: var(--ink-muted);
  padding: 8px 16px 12px;
  font-style: italic;
}

/* Includes/Excludes box */
.scope-box {
  background: var(--green-bg);
  border: 1px solid #b2d9c0;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
}

@media (max-width: 480px) {
  .scope-box { grid-template-columns: 1fr; }
}

.scope-box h4 {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.scope-box .inc h4 { color: var(--green); }
.scope-box .exc h4 { color: var(--ink-muted); }

.scope-box ul {
  list-style: none;
  padding: 0;
}

.scope-box ul li {
  font-size: 0.82rem;
  color: var(--ink-mid);
  padding: 2px 0 2px 14px;
  position: relative;
}

.scope-box .inc ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.75rem;
}

.scope-box .exc ul li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: var(--ink-muted);
  font-size: 0.75rem;
}

/* Disclaimer */
.disclaimer {
  font-size: 0.8rem;
  color: var(--ink-muted);
  background: var(--paper-alt);
  border-left: 3px solid var(--border);
  padding: 10px 14px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
}

/* ─────────────────────────────────────────
   INFO SECTIONS (FAQ, Privacy, etc.)
───────────────────────────────────────── */
.info-hero {
  background: var(--ink);
  color: var(--white);
  padding: 40px 0 32px;
}

.info-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--white);
  margin-bottom: 8px;
}

.info-hero p {
  color: #9db8c8;
  font-size: 0.95rem;
  font-weight: 300;
}

.info-body {
  padding: 40px 0;
}

.info-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.info-card h2 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: var(--ink);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.info-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 18px 0 8px;
  color: var(--ink);
}

.info-card p {
  font-size: 0.9rem;
  color: var(--ink-mid);
  margin-bottom: 12px;
  line-height: 1.7;
}

.info-card p:last-child { margin-bottom: 0; }

.info-card ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 12px;
}

.info-card ul li {
  font-size: 0.9rem;
  color: var(--ink-mid);
  margin-bottom: 6px;
  line-height: 1.6;
}

.info-card a { color: var(--green); }
.info-card a:hover { text-decoration: underline; }

/* FAQ specific */
.faq-item {
  border-bottom: 1px solid var(--paper-alt);
  padding: 16px 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-item h3 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  margin-top: 0;
}

.faq-item p {
  margin-bottom: 0;
}

/* Contact form */
.contact-form { display: grid; gap: 16px; }

.contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  resize: vertical;
  min-height: 100px;
  transition: border-color 0.15s;
}

.contact-form textarea:focus {
  border-color: var(--green-lt);
  box-shadow: 0 0 0 3px rgba(26,92,58,0.1);
  background: var(--white);
}

.contact-note {
  font-size: 0.82rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

.contact-email-block {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--green-bg);
  border: 1px solid #b2d9c0;
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 20px;
}

.contact-email-block .email-label {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.contact-email-block a {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--green);
  font-weight: 500;
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.site-footer {
  background: var(--ink);
  color: #8faab8;
  padding: 40px 0 24px;
  margin-top: 48px;
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #4a6680;
  margin-bottom: 12px;
}

.footer-col a {
  display: block;
  color: #8faab8;
  margin-bottom: 7px;
  font-size: 0.85rem;
  transition: color 0.15s;
}

.footer-col a:hover { color: #6ee7a0; text-decoration: none; }

.footer-col p { line-height: 1.6; }

#network-links a {
  display: block;
  color: #8faab8;
  margin-bottom: 7px;
  font-size: 0.82rem;
  transition: color 0.15s;
}

#network-links a:hover { color: #6ee7a0; text-decoration: none; }

.footer-bottom {
  border-top: 1px solid #1e3244;
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: #4a6680;
}

.footer-bottom a { color: #4a6680; }
.footer-bottom a:hover { color: #8faab8; text-decoration: none; }

.partnerships-link {
  font-family: var(--font-mono);
  color: #4a6680;
}