/* Savannah Basin Digital — site-wide stylesheet.
   Single source of truth for the theme: every page uses these tokens.
   Self-contained: system fonts, no external requests. */

/* ---------- tokens ---------- */
:root {
  /* color */
  --ink: #16232b;          /* primary text */
  --ink-soft: #45606e;     /* secondary text (6.6:1 on white, 5.8:1 on sand) */
  --river: #0e6e8c;        /* brand teal — buttons, accents (5.8:1 on white) */
  --river-dark: #0a4f66;   /* hover, links, dark band bg (9:1 on white) */
  --sand: #f5f1e8;         /* alt band background */
  --paper: #ffffff;
  --line: #dde6ea;         /* decorative borders only */
  --line-strong: #6f8c9b;  /* essential control borders (3.6:1 on white, 3.2:1 on sand) */
  --mist: #e5eef2;         /* hero gradient end */
  --foam: #d7e6ec;         /* body text on dark bands (7:1 on river-dark) */
  --tint-hover: #ecf3f6;   /* ghost button hover (8:1 with river-dark text) */
  --tint-active: #d9e8ed;  /* ghost button active (7.2:1) */
  --dark-tint-hover: #276478;   /* ghost hover on dark band (6.6:1 with white) */
  --dark-tint-active: #3b7285;  /* ghost active on dark band (5.3:1) */

  /* footer (on --ink) */
  --footer-text: #c3d2da;       /* 10.4:1 on ink */
  --footer-link: #dbe7ec;       /* 12.7:1 on ink */
  --footer-muted: #8fa8b4;      /* 6.4:1 on ink */
  --footer-line: #2c3d47;
  --footer-accent: #6fb9d1;

  /* form feedback */
  --ok-text: #1d4a17;  --ok-bg: #e8f3e6;  --ok-line: #b9d8b3;   /* 9:1 */
  --err-text: #7c1a1a; --err-bg: #fbeaea; --err-line: #e6bcbc;  /* 8.9:1 */

  /* type */
  --font-head: Georgia, "Times New Roman", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu,
    "Helvetica Neue", Arial, sans-serif;

  /* spacing (4px base) */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px; --s-5: 20px;
  --s-6: 24px; --s-8: 32px; --s-10: 40px; --s-12: 48px; --s-16: 64px;
  --s-20: 80px;

  /* shape + motion */
  --radius: 10px;
  --radius-sm: 6px;
  --fast: 150ms ease-out;
}

/* ---------- base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font-body);
  color: var(--ink);
  line-height: 1.6;
  background: var(--paper);
}

img { max-width: 100%; height: auto; display: block; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 var(--s-6); }
.narrow { max-width: 720px; }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.55rem, 3vw, 2rem); margin-bottom: var(--s-5); }
h3 { font-size: 1.17rem; }

p + p { margin-top: var(--s-4); }

a { color: var(--river-dark); }
a:hover { color: var(--ink); }

::selection { background: var(--river); color: var(--paper); }

:focus-visible {
  outline: 3px solid var(--river);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--paper); color: var(--river-dark);
  padding: var(--s-3) var(--s-5); border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

.kicker {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--river);
  margin-bottom: var(--s-3);
}
.band-dark .kicker { color: var(--foam); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  background: var(--river);
  color: var(--paper) !important;
  padding: 13px 24px;
  border: 0;
  border-radius: var(--radius);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--fast);
}
.btn:hover { background: var(--river-dark); }
.btn:active { background: var(--ink); }
.btn:disabled { opacity: 0.5; pointer-events: none; }
.btn-small { padding: 9px 18px; font-size: 0.9rem; }
.btn-ghost {
  background: transparent;
  color: var(--river-dark) !important;
  box-shadow: inset 0 0 0 2px var(--river);
}
.btn-ghost:hover { background: var(--tint-hover); }
.btn-ghost:active { background: var(--tint-active); }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: var(--s-4);
}
.brand {
  font-family: var(--font-head);
  font-weight: 700; font-size: 1.12rem;
  color: var(--ink); text-decoration: none;
  white-space: nowrap;
}
.brand em { font-style: normal; color: var(--river); }

.nav-links {
  display: flex; gap: var(--s-6); align-items: center; list-style: none;
}
.nav-links a:not(.btn) {
  text-decoration: none; color: var(--ink-soft); font-size: 0.95rem;
  padding: var(--s-2) 0;
}
.nav-links a:not(.btn):hover { color: var(--river-dark); }
.nav-links a:not(.btn)[aria-current="page"] {
  color: var(--river-dark);
  box-shadow: 0 2px 0 0 var(--river);
}

.mobile-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  color: var(--ink);
  padding: var(--s-2);
  min-width: 44px; min-height: 44px;
  align-items: center; justify-content: center;
}
.mobile-toggle svg { width: 24px; height: 24px; }
.mobile-toggle .icon-close { display: none; }
.mobile-toggle[aria-expanded="true"] .icon-open { display: none; }
.mobile-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (max-width: 760px) {
  .mobile-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: var(--s-2) var(--s-6) var(--s-5);
  }
  .nav-links.nav-open { display: flex; }
  .nav-links a:not(.btn) { padding: var(--s-3) 0; font-size: 1.05rem; }
  .nav-links a:not(.btn)[aria-current="page"] {
    box-shadow: none; font-weight: 600;
  }
  .nav-links .btn { margin-top: var(--s-3); text-align: center; }
}

/* ---------- hero ---------- */
.hero {
  background:
    linear-gradient(160deg, var(--sand) 55%, var(--mist) 100%);
  position: relative;
  overflow: hidden;
  padding: var(--s-20) 0 72px;
}
.hero::after {
  /* basin contour lines, decorative */
  content: "";
  position: absolute; inset: auto -5% -38% -5%;
  height: 75%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 900 300' preserveAspectRatio='none'%3E%3Cg fill='none' stroke='%230e6e8c' stroke-width='1.5' opacity='0.16'%3E%3Cpath d='M0 60 C 180 20, 320 110, 480 70 S 780 30, 900 80'/%3E%3Cpath d='M0 120 C 200 80, 340 170, 500 130 S 800 90, 900 140'/%3E%3Cpath d='M0 180 C 220 140, 360 230, 520 190 S 820 150, 900 200'/%3E%3Cpath d='M0 240 C 240 200, 380 290, 540 250 S 840 210, 900 260'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 100% 100%;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 720px; margin-bottom: var(--s-4); }
.hl { color: var(--river); }
.lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 620px; }
.hero-cta { margin: var(--s-8) 0 var(--s-4); display: flex; gap: var(--s-4); flex-wrap: wrap; }
.hero-note { font-size: 0.95rem; color: var(--ink-soft); max-width: 560px; }

/* page heroes (inner pages) */
.page-hero {
  background: linear-gradient(160deg, var(--sand) 55%, var(--mist) 100%);
  padding: var(--s-16) 0 var(--s-12);
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: var(--s-3); }
.page-hero .lede { font-size: 1.1rem; }

/* ---------- bands ---------- */
.band { padding: 72px 0; }
.band-alt { background: var(--sand); }
.band-dark { background: var(--river-dark); color: var(--paper); }
.band-dark h2, .band-dark h3 { color: var(--paper); }
.band-dark p, .band-dark li { color: var(--foam); }
.band-dark a:not(.btn) { color: var(--paper); }
.band-dark .btn { background: var(--paper); color: var(--river-dark) !important; }
.band-dark .btn:hover { background: var(--sand); }
.band-dark .btn-ghost {
  background: transparent; color: var(--paper) !important;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.75);
}
.band-dark .btn-ghost:hover { background: var(--dark-tint-hover); }
.band-dark .btn-ghost:active { background: var(--dark-tint-active); }

/* ---------- cards ---------- */
.cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-5);
}
@media (min-width: 640px) {
  /* the card sets on this site come in fours: keep them a balanced 2x2 */
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--s-6);
  background: var(--paper);
  transition: border-color var(--fast);
}
.card h3 { margin-bottom: var(--s-2); color: var(--river-dark); }
.card p { color: var(--ink-soft); font-size: 0.97rem; }
a.card { display: block; text-decoration: none; color: inherit; }
a.card:hover { border-color: var(--river); }
.card .card-more {
  display: inline-block; margin-top: var(--s-3);
  color: var(--river-dark); font-weight: 600; font-size: 0.92rem;
}

/* ---------- process steps ---------- */
.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr));
  gap: var(--s-5);
}
.steps li {
  counter-increment: step;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--s-6);
}
.steps li::before {
  content: counter(step);
  display: inline-flex;
  width: 34px; height: 34px;
  align-items: center; justify-content: center;
  background: var(--river);
  color: var(--paper);
  border-radius: 50%;
  font-weight: 700;
  font-family: var(--font-body);
  margin-bottom: var(--s-3);
}
.steps h3 { font-size: 1.05rem; margin-bottom: var(--s-2); }
.steps p { color: var(--ink-soft); font-size: 0.95rem; }

/* readable measure: body text never runs past ~65ch */
.prose p, .prose li, .narrow p, .narrow li { max-width: 65ch; }

/* ---------- prose sections (service pages, pricing, about) ---------- */
.prose h2 { margin-top: var(--s-10); }
.prose h2:first-child { margin-top: 0; }
.prose ul { margin: var(--s-4) 0 0 1.2em; }
.prose li { margin-top: var(--s-2); color: var(--ink); }
.prose li::marker { color: var(--river); }

/* about layout */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
  gap: var(--s-12);
  align-items: start;
}
@media (max-width: 760px) {
  .about-grid { grid-template-columns: minmax(0, 1fr); }
  .portrait { max-width: 300px; }
}
.portrait { margin: 0; }
.portrait img,
.portrait-placeholder {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  object-fit: cover;
}
.portrait-placeholder {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--mist), var(--sand));
  border: 1px solid var(--line);
  color: var(--river-dark);
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
}
.portrait figcaption {
  margin-top: var(--s-3);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; }
.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  margin-top: var(--s-4);
}
.faq-list summary {
  list-style: none;
  cursor: pointer;
  padding: var(--s-5) var(--s-12) var(--s-5) var(--s-6);
  font-weight: 600;
  font-size: 1.02rem;
  position: relative;
  border-radius: var(--radius);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  /* chevron, drawn with borders */
  content: "";
  position: absolute; right: var(--s-6); top: 50%;
  width: 9px; height: 9px;
  border-right: 2px solid var(--river-dark);
  border-bottom: 2px solid var(--river-dark);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--fast);
}
.faq-list details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}
.faq-list summary:hover { color: var(--river-dark); }
.faq-list details > div {
  padding: 0 var(--s-6) var(--s-5);
  color: var(--ink-soft);
}

/* ---------- forms ---------- */
.form-wrap { max-width: 560px; }
.field { margin-top: var(--s-5); }
.field label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: var(--s-2);
}
.field .hint { font-weight: 400; color: var(--ink-soft); }
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}
.field input:focus-visible,
.field textarea:focus-visible,
.field select:focus-visible {
  outline: 3px solid var(--river);
  outline-offset: 0;
  border-color: var(--river);
}
.field textarea { min-height: 120px; resize: vertical; }
form .btn { margin-top: var(--s-6); }
.botcheck { position: absolute; left: -9999px; }
.form-success, .form-error {
  margin-top: var(--s-5);
  padding: var(--s-4) var(--s-5);
  border-radius: var(--radius-sm);
  font-size: 0.97rem;
}
.form-success {
  background: var(--ok-bg);
  color: var(--ok-text);
  border: 1px solid var(--ok-line);
}
.form-error {
  background: var(--err-bg);
  color: var(--err-text);
  border: 1px solid var(--err-line);
}

/* contact blocks */
.contact-lines { margin-top: var(--s-6); display: flex; gap: var(--s-4); flex-wrap: wrap; }
.contact-meta { margin-top: var(--s-5); font-size: 0.95rem; color: var(--ink-soft); }

/* ---------- footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--footer-text);
  padding: var(--s-12) 0 var(--s-8);
  font-size: 0.93rem;
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: var(--s-8);
}
.site-footer h3 {
  font-family: var(--font-body);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--footer-muted);
  margin-bottom: var(--s-3);
}
.site-footer ul { list-style: none; }
.site-footer li { margin-top: var(--s-2); }
.site-footer a { color: var(--footer-link); text-decoration: none; }
.site-footer a:hover { color: var(--paper); text-decoration: underline; }
.site-footer .footer-brand {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--paper);
}
.site-footer .footer-brand em { font-style: normal; color: var(--footer-accent); }
.site-footer .footer-note { margin-top: var(--s-3); max-width: 300px; }
.site-footer .footer-legal {
  margin-top: var(--s-10);
  padding-top: var(--s-5);
  border-top: 1px solid var(--footer-line);
  color: var(--footer-muted);
  max-width: 65ch;
}

/* ---------- misc ---------- */
.cta-row { margin-top: var(--s-8); display: flex; gap: var(--s-4); flex-wrap: wrap; }
.after-list { margin-top: var(--s-6); }

.checklist { list-style: none; margin-top: var(--s-4); }
.checklist li {
  position: relative;
  padding-left: 30px;
  margin-top: var(--s-3);
  color: var(--ink);
}
.checklist li::before {
  /* checkmark, drawn with borders */
  content: "";
  position: absolute; left: 4px; top: 7px;
  width: 12px; height: 6px;
  border-left: 2.5px solid var(--river);
  border-bottom: 2.5px solid var(--river);
  transform: rotate(-45deg);
}

@media (max-width: 640px) {
  .hero { padding: var(--s-12) 0 var(--s-10); }
  .band { padding: var(--s-12) 0; }
  .page-hero { padding: var(--s-10) 0 var(--s-8); }
}

@media (max-width: 380px) {
  .topbar .wrap { padding: 0 var(--s-4); gap: var(--s-2); }
  .brand { font-size: 0.92rem; }
}