/* ==========================================================================
   Davis Fish Farms — Design System
   Aesthetic: refined Southern outdoor / heritage. Deep water-teal + charcoal
   pulled from the logo. Serif display (Fraunces) + clean sans body (Outfit).
   Everything themeable from the :root tokens below.
   ========================================================================== */

:root {
  /* ---- Palette ---- */
  --teal-900: #0c2e2c;
  --teal-700: #11423d;
  --teal-500: #1f7a6f;
  --teal-400: #2f9b8c;
  --teal-300: #5cc0b1;   /* logo accent */
  --teal-100: #d4ece7;

  --charcoal-900: #13201f;
  --charcoal-800: #1b2b29;
  --charcoal-600: #38484616;

  --sand-100: #f6f3ec;   /* warm paper base */
  --sand-200: #ece6da;
  --sand-300: #ddd4c4;

  --ink: #16211f;        /* primary text */
  --ink-soft: #45524f;   /* secondary text */
  --line: #d9d2c5;       /* hairline */

  --white: #ffffff;
  --success: #2f9b6f;
  --error: #c0492f;
  --info: #1f7a6f;

  /* ---- Semantic ---- */
  --bg: var(--sand-100);
  --bg-alt: var(--white);
  --surface: var(--white);
  --accent: var(--teal-500);
  --accent-bright: var(--teal-300);

  /* ---- Type ---- */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* ---- Spacing scale (8px base) ---- */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4rem;
  --sp-7: 6rem;
  --sp-8: 8rem;

  /* ---- Radii / shadows / motion ---- */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(19, 32, 31, 0.08);
  --shadow: 0 8px 30px rgba(19, 32, 31, 0.10);
  --shadow-lg: 0 24px 60px rgba(12, 46, 44, 0.18);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 160ms var(--ease);
  --t: 240ms var(--ease);

  --container: 1280px;
  --header-h: 84px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 1rem); -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
:focus-visible { outline: 3px solid var(--teal-400); outline-offset: 3px; border-radius: 4px; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink);
}
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 600; }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
p { max-width: 65ch; }

.display-soft { font-variation-settings: "SOFT" 40, "WONK" 0; font-style: italic; }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}
.section { padding-block: clamp(3.5rem, 8vw, 7rem); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.bg-alt { background: var(--bg-alt); }
.bg-deep { background: var(--teal-900); color: var(--sand-100); }
.bg-deep h1, .bg-deep h2, .bg-deep h3 { color: var(--white); }

/* ---- Eyebrow label ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-500);
  margin-bottom: var(--sp-2);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--teal-300);
}
.bg-deep .eyebrow { color: var(--teal-300); }
.bg-deep .eyebrow::before { background: var(--teal-300); }

.section-lead {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 56ch;
}
.bg-deep .section-lead { color: var(--teal-100); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  padding: 0.95rem 1.6rem;
  border-radius: var(--radius-sm);
  min-height: 48px;
  transition: transform var(--t-fast), background var(--t), box-shadow var(--t), color var(--t);
  will-change: transform;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--teal-500); color: var(--white); box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--teal-700); box-shadow: var(--shadow); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn--ghost:hover { border-color: var(--teal-500); color: var(--teal-700); transform: translateY(-2px); }
.btn--light { background: var(--white); color: var(--teal-900); }
.btn--light:hover { background: var(--teal-100); transform: translateY(-2px); }
.btn--on-dark { border: 1.5px solid rgba(255,255,255,0.35); color: var(--white); }
.btn--on-dark:hover { border-color: var(--teal-300); background: rgba(255,255,255,0.06); transform: translateY(-2px); }
.btn .arrow { transition: transform var(--t); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---- Reveal animation (Intersection Observer) ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   HEADER / NAV
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--t), box-shadow var(--t), height var(--t);
}
.site-header.scrolled {
  background: var(--teal-900);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
  height: 70px;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}
.brand { display: flex; align-items: center; gap: 0.7rem; z-index: 2; }
.brand img { height: 42px; width: auto; transition: height var(--t); }
.site-header.scrolled .brand img { height: 36px; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.1rem); }
.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--white);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--t);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--teal-300);
  transition: width var(--t);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav a[aria-current="page"] { color: var(--teal-300); }

/* header on pages with light hero needs solid bg from the start */
.site-header.solid {
  background: var(--teal-900);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav-cta { margin-left: 0.5rem; }
.nav-cta.btn { padding: 0.7rem 1.25rem; min-height: 44px; }

/* Mobile menu */
.menu-toggle {
  display: none;
  width: 46px; height: 46px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  z-index: 110;
}
.menu-toggle span {
  width: 26px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--teal-900);
  z-index: 105;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--sp-3);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t), visibility var(--t);
}
.mobile-nav.open { opacity: 1; visibility: visible; }
.mobile-nav__close {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2;
}
.mobile-nav__close span {
  position: absolute;
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
}
.mobile-nav__close span:nth-child(1) { transform: rotate(45deg); }
.mobile-nav__close span:nth-child(2) { transform: rotate(-45deg); }
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--white);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--t), transform var(--t);
}
.mobile-nav.open a { opacity: 1; transform: none; }
.mobile-nav.open a:nth-of-type(1) { transition-delay: 60ms; }
.mobile-nav.open a:nth-of-type(2) { transition-delay: 100ms; }
.mobile-nav.open a:nth-of-type(3) { transition-delay: 140ms; }
.mobile-nav.open a:nth-of-type(4) { transition-delay: 180ms; }
.mobile-nav.open a:nth-of-type(5) { transition-delay: 220ms; }
.mobile-nav.open a:nth-of-type(6) { transition-delay: 260ms; }
.mobile-nav.open a:nth-of-type(7) { transition-delay: 300ms; }
.mobile-nav.open a:nth-of-type(8) { transition-delay: 340ms; }
.mobile-nav a[aria-current="page"] { color: var(--teal-300); }
.mobile-nav__sub {
  font-family: var(--font-body) !important;
  font-size: 0.95rem !important;
  color: var(--teal-200, #8fd4c7) !important;
  letter-spacing: 0.03em;
  border: 1px solid rgba(255,255,255,0.18);
  padding: 0.6rem 1.4rem;
  border-radius: 100px;
  margin-top: var(--sp-1);
}
.mobile-nav .btn { margin-top: var(--sp-2); font-family: var(--font-body); font-size: 1rem; }

@media (max-width: 940px) {
  .nav, .nav-cta--desktop { display: none; }
  .menu-toggle { display: flex; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--teal-900);
  color: var(--teal-100);
  padding-block: var(--sp-6) var(--sp-4);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: var(--sp-5);
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand img { height: 50px; margin-bottom: var(--sp-2); }
.footer-brand p { font-size: 0.95rem; color: var(--teal-100); opacity: 0.85; max-width: 34ch; }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-300);
  margin-bottom: var(--sp-2);
}
.footer-col a, .footer-col p { font-size: 0.95rem; color: var(--teal-100); opacity: 0.88; display: block; margin-bottom: 0.55rem; transition: opacity var(--t), color var(--t); }
.footer-col a:hover { opacity: 1; color: var(--white); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  padding-top: var(--sp-3);
  font-size: 0.85rem;
  opacity: 0.7;
}
.footer-bottom a { text-decoration: underline; }
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   MODAL + TOAST  (custom — no native dialogs)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 28, 27, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-3);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t), visibility var(--t);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 460px;
  width: 100%;
  padding: var(--sp-5) var(--sp-4) var(--sp-4);
  text-align: center;
  transform: translateY(18px) scale(0.97);
  transition: transform var(--t);
  position: relative;
}
.modal-overlay.open .modal { transform: none; }
.modal-icon {
  width: 64px; height: 64px;
  margin: 0 auto var(--sp-2);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--teal-100);
  color: var(--teal-700);
}
.modal-icon svg { width: 32px; height: 32px; }
.modal h3 { margin-bottom: 0.5rem; }
.modal p { margin: 0 auto var(--sp-3); color: var(--ink-soft); }
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-soft);
  transition: background var(--t);
}
.modal-close:hover { background: var(--sand-200); }

.toast-region {
  position: fixed;
  bottom: var(--sp-3);
  right: var(--sp-3);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  max-width: 360px;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  background: var(--charcoal-900);
  color: var(--white);
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-size: 0.92rem;
  transform: translateX(120%);
  transition: transform 360ms var(--ease);
  border-left: 4px solid var(--teal-300);
}
.toast.show { transform: none; }
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
.toast.info { border-left-color: var(--info); }
.toast-icon { flex-shrink: 0; margin-top: 1px; }
.toast-icon svg { width: 20px; height: 20px; }
.toast strong { display: block; font-weight: 600; margin-bottom: 1px; }
.toast span { opacity: 0.85; }
@media (max-width: 480px) {
  .toast-region { left: var(--sp-2); right: var(--sp-2); bottom: var(--sp-2); max-width: none; }
}

body.modal-open, body.menu-open { overflow: hidden; }