/* ============================================================
   Saltwater Science — shared stylesheet
   Clean & minimal · ocean palette
   ============================================================ */

:root {
  /* Brand palette (approved) */
  --ink:        #1f3f4a;   /* Deep Ocean — primary text / dark sections */
  --ink-soft:   #466069;   /* secondary text */
  --teal:       #3f7f8c;   /* Teal — primary accent */
  --teal-dark:  #2d5f6b;   /* darker teal for hover */
  --teal-tint:  #e9f1f1;   /* pale seafoam wash */
  --seafoam:    #a8c7c5;
  --light-ocean:#8fb9c6;
  --sky:        #6fa7b3;
  --coral:      #e58c7c;   /* warm accent (now primary) */
  --coral-dark: #cf6e5b;   /* coral hover */
  --soft-coral: #f1b39c;
  --peach:      #f3b27f;
  --blush:      #fbece6;   /* warm pale wash for section bg / chips */
  --sand:       #f7efe1;   /* soft sand wash for section bg */
  --sand-solid: #f2d6b3;
  --paper:      #ffffff;
  --line:       #e8e2d6;   /* warm hairline borders */

  /* Type */
  --serif: "Lora", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --maxw: 1140px;
  --gap: clamp(1.25rem, 4vw, 3rem);
  --radius: 4px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- typography ---------- */
h1, h2, h3, h4, .statement, .footer-brand, .num, .amount, .pub h3 {
  font-feature-settings: "liga" 0, "dlig" 0, "calt" 0;
  font-variation-settings: "WONK" 0;
}
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.12;
  color: var(--ink);
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2.4vw, 1.55rem); }
p { margin: 0 0 1.1em; }
.lead { font-size: clamp(1.15rem, 2.2vw, 1.4rem); color: var(--ink-soft); line-height: 1.6; }
.eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .78rem;
  font-weight: 600;
  color: var(--coral);
  margin: 0 0 1rem;
}

/* ---------- layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gap); }
.section { padding: clamp(3.5rem, 9vw, 7rem) 0; }
.section--sand { background: var(--sand); }
.section--ink  { background: var(--ink); color: #dfe7eb; }
.section--ink h1, .section--ink h2, .section--ink h3 { color: #fff; }
.section--tint { background: linear-gradient(135deg, var(--blush) 0%, var(--sand) 100%); }
.narrow { max-width: 720px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

.grid { display: grid; gap: clamp(1.5rem, 4vw, 2.5rem); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 820px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .01em;
  padding: .85rem 1.6rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--coral);
  background: var(--coral);
  color: #fff;
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.btn:hover { background: var(--coral-dark); border-color: var(--coral-dark); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--coral-dark); border-color: var(--coral); }
.btn--ghost:hover { background: var(--coral); color: #fff; }
.btn--light { background: #fff; color: var(--ink); border-color: #fff; }
.btn--light:hover { background: transparent; color: #fff; }
.btn + .btn { margin-left: .75rem; }
@media (max-width: 520px) { .btn { display: block; text-align: center; } .btn + .btn { margin-left: 0; margin-top: .75rem; } }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 88px; }
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--serif); font-size: 1.35rem; color: var(--ink); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand .logo-dot { width: 26px; height: 26px; border-radius: 50%; background: var(--teal); display: inline-block; }
.brand img { height: 60px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 1.9rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--ink-soft); font-size: .96rem; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--teal); text-decoration: none; }
.nav-cta { padding: .55rem 1.1rem; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .25s; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 88px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: .5rem var(--gap) 1.25rem;
    max-height: 0; overflow: hidden; visibility: hidden;
    transition: max-height .3s ease, visibility .3s ease; box-shadow: 0 12px 24px rgba(0,0,0,.05);
  }
  .nav-links.open { max-height: 420px; visibility: visible; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: .75rem 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-cta { margin-top: .75rem; }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex; align-items: center;
  color: #fff;
  background: linear-gradient(180deg, rgba(31,63,74,.35), rgba(31,63,74,.6)),
              linear-gradient(135deg, #1f3f4a 0%, #3f7f8c 60%, #e58c7c 120%);
  background-size: cover; background-position: center;
}
.hero--photo {
  background: linear-gradient(105deg, rgba(20,45,54,.84) 0%, rgba(58,52,72,.55) 48%, rgba(190,108,98,.42) 100%),
              url("images/hero.jpg") center/cover no-repeat;
}
.hero .container { padding-top: 4rem; padding-bottom: 4rem; }
.hero h1 { color: #fff; max-width: 16ch; }
.hero .lead { color: rgba(255,255,255,.9); max-width: 52ch; }
.hero .eyebrow { color: var(--soft-coral); }
.hero-actions { margin-top: 2rem; }

/* ---------- page banner (interior pages) ---------- */
.page-banner {
  background: var(--ink); color: #fff;
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}
.page-banner h1 { color: #fff; }
.page-banner .lead { color: rgba(255,255,255,.82); max-width: 60ch; }

/* ---------- cards ---------- */
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.2rem);
  height: 100%;
}
.card h3 { margin-bottom: .4rem; }
.card .icon { width: 44px; height: 44px; border-radius: 50%; background: var(--blush); display: flex; align-items: center; justify-content: center; margin-bottom: 1.1rem; }
.card .icon svg { width: 22px; height: 22px; stroke: var(--coral-dark); }

/* ---------- pull quote / statement ---------- */
.statement { font-family: var(--serif); font-size: clamp(1.6rem, 4vw, 2.6rem); line-height: 1.25; color: var(--ink); max-width: 18ch; }
.statement--center { margin: 0 auto; text-align: center; max-width: 24ch; }

/* ---------- image placeholder ---------- */
.imgph {
  background: var(--teal-tint);
  border: 1px dashed #aac7cd;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--teal-dark);
  font-size: .85rem; font-weight: 600; letter-spacing: .03em;
  text-align: center; padding: 1rem;
  min-height: 240px;
}
.media-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius); display: block; }
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
.gallery img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: var(--radius); display: block; }
@media (max-width: 760px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
.media-text { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: center; }
.media-text--reverse .text { order: 2; }
@media (max-width: 820px) {
  .media-text, .media-text--reverse { grid-template-columns: 1fr; }
  .media-text--reverse .text { order: 0; }
}

/* ---------- team grid ---------- */
.team-member .photo { aspect-ratio: 1/1; border-radius: var(--radius); overflow: hidden; margin-bottom: .9rem; background: var(--teal-tint); }
.team-member .photo img { width: 100%; height: 100%; object-fit: cover; }
.team-member h3 { font-size: 1.2rem; margin-bottom: .15rem; }
.team-member .role { color: var(--teal); font-size: .9rem; font-weight: 600; margin-bottom: .5rem; }
.team-member p { font-size: .95rem; color: var(--ink-soft); }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; text-align: center; }
.stats .num { font-family: var(--serif); font-size: clamp(2.2rem,5vw,3.2rem); color: var(--teal); line-height: 1; }
.stats .label { font-size: .9rem; color: var(--ink-soft); margin-top: .4rem; }
@media (max-width: 620px) { .stats { grid-template-columns: 1fr; gap: 1.5rem; } }

/* ---------- donate tiers ---------- */
.tier { text-align: center; }
.tier .amount { font-family: var(--serif); font-size: 2rem; color: var(--ink); }
.tier .amount span { font-size: 1rem; color: var(--ink-soft); }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #b9c6cd; padding: clamp(3rem,6vw,4.5rem) 0 2rem; }
.site-footer h4 { color: #fff; font-family: var(--sans); font-size: .85rem; text-transform: uppercase; letter-spacing: .14em; margin-bottom: 1rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; }
.site-footer a { color: #b9c6cd; }
.site-footer a:hover { color: #fff; }
.footer-brand { font-family: var(--serif); font-size: 1.4rem; color: #fff; margin-bottom: .6rem; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: .55rem; }
.socials { display: flex; gap: .9rem; margin-top: .5rem; }
.socials a { display: inline-flex; }
.socials svg { width: 22px; height: 22px; fill: #b9c6cd; transition: fill .2s; }
.socials a:hover svg { fill: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 2.5rem; padding-top: 1.5rem; font-size: .85rem; color: #8195a0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* ---------- misc ---------- */
.divider { height: 1px; background: var(--line); border: 0; margin: 0; }
.tag { display: inline-block; background: var(--blush); color: var(--coral-dark); font-size: .8rem; font-weight: 600; padding: .3rem .75rem; border-radius: 999px; margin: 0 .4rem .4rem 0; }
ul.clean { list-style: none; padding: 0; margin: 0; }
ul.ticks { list-style: none; padding: 0; margin: 1rem 0; }
ul.ticks li { position: relative; padding-left: 1.8rem; margin-bottom: .7rem; }
ul.ticks li::before { content: ""; position: absolute; left: 0; top: .55em; width: .65rem; height: .65rem; border-radius: 50%; background: var(--coral); }
/* newsletter signup */
.newsletter-form { display: flex; gap: .75rem; max-width: 460px; margin: 1.75rem auto 0; flex-wrap: wrap; justify-content: center; }
.newsletter-form input[type="email"] { flex: 1; min-width: 220px; padding: .85rem 1rem; border-radius: var(--radius); border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.1); color: #fff; font-size: 1rem; }
.newsletter-form input[type="email"]::placeholder { color: rgba(255,255,255,.6); }
.newsletter-form input[type="email"]:focus { outline: none; border-color: var(--soft-coral); background: rgba(255,255,255,.16); }
.hidden-field { position: absolute; left: -9999px; }
.form-msg { margin-top: 1.25rem; color: #fff; font-weight: 600; font-family: var(--serif); font-size: 1.25rem; }
@media (max-width: 520px) { .newsletter-form .btn { width: 100%; } }

/* publications */
.pub-list { margin-top: 2.25rem; display: grid; gap: 1.6rem; }
.pub { padding-bottom: 1.6rem; border-bottom: 1px solid var(--line); }
.pub:last-child { border-bottom: 0; padding-bottom: 0; }
.pub h3 { font-size: 1.12rem; margin-bottom: .15rem; }
.pub .meta { color: var(--teal); font-weight: 600; font-size: .88rem; margin-bottom: .6rem; }
.pub p { margin-bottom: .5rem; color: var(--ink-soft); font-size: .98rem; }
.pub a { font-weight: 600; }
.subhead { font-family: var(--sans); text-transform: uppercase; letter-spacing: .14em; font-size: .82rem; font-weight: 600; color: var(--ink); margin: 3rem 0 .25rem; }

.fade-up { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.fade-up.in { opacity: 1; transform: none; }