/* ==========================================================
   LagoonLink — design system
   Ocean-glass theme, mobile-first, iOS-app feel.
   ========================================================== */

/* ---------- Fonts ---------- */
@font-face{
  font-family: "KnewaveLocal";
  src: url("/static/Fonts/Knewave/knewave-regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face{
  font-family: "OriginalSurferLocal";
  src: url("/static/Fonts/Original_Surfer/OriginalSurfer-regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}

/* ---------- Tokens ---------- */
:root{
  /* palette */
  --ink:        #06283A;
  --ink-soft:   #3A5A6A;
  --ink-faint:  #7A96A3;
  --teal:       #0FB3B6;
  --teal-deep:  #067A87;
  --aqua:       #22D3EE;
  --navy:       #063A4B;
  --coral:      #FF6B5E;
  --sand:       #F5D58A;
  --good:       #18B26B;
  --warn:       #E8A213;

  --bg-top:     #EAFBF7;
  --bg-bottom:  #D4EFEB;
  --card:       #FFFFFF;
  --card-line:  #E3EEF0;
  --chip-bg:    #F2FAFB;

  /* surfaces & depth */
  --shadow-card: 0 2px 6px rgba(6,58,75,.05), 0 12px 32px rgba(6,58,75,.07);
  --shadow-pop:  0 8px 30px rgba(6,58,75,.18);
  --blur-nav:    saturate(180%) blur(18px);

  /* shape */
  --r-lg: 22px;
  --r-md: 16px;
  --r-sm: 12px;
  --r-pill: 999px;

  /* type */
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui,
               "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-brand: "KnewaveLocal", "Avenir Next", cursive;
  --font-display: "OriginalSurferLocal", "Avenir Next", var(--font-body);

  --fs-hero: clamp(1.9rem, 1.2rem + 2.6vw, 2.7rem);
  --fs-h2:   clamp(1.2rem, 1rem + 1vw, 1.45rem);
  --fs-body: 1.0rem;

  /* layout */
  --nav-h: 60px;
  --tabbar-h: 62px;
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);

  /* motion */
  --ease-spring: cubic-bezier(.34,1.4,.44,1);
  --ease-out: cubic-bezier(.22,.9,.35,1);
}

/* ---------- Base ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
body{
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.55;
  letter-spacing: .1px;
  color: var(--ink);
  background:
    radial-gradient(120% 60% at 85% -10%, rgba(34,211,238,.18), transparent 60%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom) 90%);
  background-attachment: fixed;
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--tabbar-h) + var(--sab) + 18px);
}
@media (min-width: 861px){
  body{ padding-bottom: 40px; }
}

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

::selection{ background: rgba(15,179,182,.25); }

/* ---------- Layout ---------- */
.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 20px clamp(14px, 4vw, 24px) 0;
  animation: page-in .38s var(--ease-out) both;
}
@keyframes page-in{
  from{ opacity: 0; transform: translateY(10px); }
  to  { opacity: 1; transform: none; }
}

.stack > * + *{ margin-top: 16px; }

/* ---------- Typography ---------- */
h1, h2, h3{ color: var(--navy); margin: 0 0 .35em; }
h1{ font-size: var(--fs-hero); line-height: 1.12; }
h2{ font-size: var(--fs-h2);  line-height: 1.2; font-family: var(--font-display); font-weight: 400; letter-spacing: .3px; }
h1.surfer, .brand-script{
  font-family: var(--font-brand);
  font-weight: 400;
  letter-spacing: .5px;
  line-height: 1.14;
  padding-bottom: .1em;           /* protect descenders */
}
.vibe-surf-gradient{
  background: linear-gradient(160deg, var(--aqua) 0%, var(--teal) 40%, var(--teal-deep) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
  display: inline-block;
}
.muted{ color: var(--ink-soft); }
.small{ font-size: .85rem; }
.eyebrow{
  font-size: .74rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal-deep);
}

/* ---------- Cards ---------- */
.card{
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--r-lg);
  padding: clamp(18px, 3.4vw, 26px);
  box-shadow: var(--shadow-card);
}
.card--flush{ padding: 0; overflow: hidden; }
.card-header{
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; margin-bottom: 10px;
}
.card-header h2{ margin: 0; }

/* ---------- Buttons ---------- */
.btn{
  font-family: var(--font-body);
  font-size: 1rem; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 18px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: transform .16s var(--ease-spring), box-shadow .16s var(--ease-out),
              background .16s var(--ease-out), opacity .16s;
  user-select: none;
  min-height: 46px;
}
.btn:active{ transform: scale(.965); }
.btn svg{ width: 18px; height: 18px; flex: 0 0 auto; }

.btn-primary{
  background: linear-gradient(160deg, #0AA6B0, var(--teal-deep));
  color: #fff;
  box-shadow: 0 6px 16px rgba(7,122,135,.32);
}
.btn-primary:hover{ box-shadow: 0 8px 22px rgba(7,122,135,.4); }
.btn-accent{ background: var(--teal); color: #033A40; }
.btn-surfer{ background: var(--teal); color: #033A40; }
.btn-ghost{
  background: rgba(255,255,255,.75);
  border-color: #D5E4E8;
  color: var(--navy);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover{ background: #fff; }
.btn-danger{ background: #FFF0EE; color: #C0392B; border-color: #F6D2CC; }
.btn-xs{ padding: 7px 12px; min-height: 34px; font-size: .86rem; border-radius: 10px; }
.btn[disabled]{ opacity: .55; pointer-events: none; }
.btn-block{ width: 100%; }

/* ---------- Top navbar (desktop) ---------- */
.navbar{
  position: sticky; top: 0; z-index: 40;
  padding-top: var(--sat);
  background: rgba(255,255,255,.72);
  -webkit-backdrop-filter: var(--blur-nav);
  backdrop-filter: var(--blur-nav);
  border-bottom: 1px solid rgba(6,58,75,.08);
}
.navbar .inner{
  max-width: 980px; margin: 0 auto;
  padding: 0 clamp(14px, 4vw, 24px);
  min-height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.nav-logo{ display: inline-flex; align-items: center; line-height: 0; }
.nav-logo svg{ height: 40px; width: auto; display: block; }
.nav-links{ display: flex; align-items: center; gap: 4px; }
.nav-links a{
  font-family: var(--font-display);
  font-size: 1.02rem; letter-spacing: .3px;
  color: var(--navy);
  padding: 9px 13px; border-radius: var(--r-pill);
  text-decoration: none !important;
  transition: background .16s var(--ease-out);
}
.nav-links a:hover{ background: rgba(15,179,182,.12); }
.nav-links a.active{ background: rgba(15,179,182,.16); color: var(--teal-deep); }
.nav-links .btn{ margin-left: 6px; }
@media (max-width: 860px){
  .nav-links{ display: none; }       /* mobile uses the tab bar */
  .nav-cta-mobile{ display: inline-flex; }
}
@media (min-width: 861px){
  .nav-cta-mobile{ display: none; }
}

/* ---------- Bottom tab bar (mobile) ---------- */
.tabbar{
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: none;
  background: rgba(255,255,255,.82);
  -webkit-backdrop-filter: var(--blur-nav);
  backdrop-filter: var(--blur-nav);
  border-top: 1px solid rgba(6,58,75,.08);
  padding: 6px 8px calc(6px + var(--sab));
}
@media (max-width: 860px){
  .tabbar{ display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; }
}
.tabbar a{
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 5px 2px 3px;
  font-size: .66rem; font-weight: 600; letter-spacing: .02em;
  color: var(--ink-faint);
  text-decoration: none !important;
  border-radius: var(--r-sm);
  transition: color .15s, transform .15s var(--ease-spring);
}
.tabbar a:active{ transform: scale(.94); }
.tabbar a svg{ width: 24px; height: 24px; }
.tabbar a.active{ color: var(--teal-deep); }
.tabbar .tab-fab{
  transform: translateY(-14px);
}
.tabbar .tab-fab .fab-circle{
  width: 52px; height: 52px; border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(160deg, var(--aqua), var(--teal-deep));
  color: #fff;
  box-shadow: 0 8px 20px rgba(7,122,135,.45);
}
.tabbar .tab-fab .fab-circle svg{ width: 26px; height: 26px; }
.tabbar .tab-fab:active{ transform: translateY(-14px) scale(.94); }
.tabbar .tab-fab span{ color: var(--teal-deep); }

/* ---------- Toasts (flash messages) ---------- */
.toast-stack{
  position: fixed; z-index: 80;
  top: calc(var(--sat) + 12px); left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 8px;
  width: min(440px, calc(100vw - 28px));
  pointer-events: none;
}
.toast{
  pointer-events: auto;
  display: flex; align-items: center; gap: 10px;
  background: rgba(8,42,56,.92);
  color: #EFFFFB;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-radius: var(--r-md);
  padding: 12px 16px;
  font-size: .93rem; font-weight: 500;
  box-shadow: var(--shadow-pop);
  animation: toast-in .42s var(--ease-spring) both;
}
.toast::before{ content: ""; width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto; }
.toast.success::before{ background: var(--good); }
.toast.info::before{ background: var(--aqua); }
.toast.warning::before{ background: var(--sand); }
.toast.danger::before{ background: var(--coral); }
.toast.hide{ animation: toast-out .3s ease-in forwards; }
@keyframes toast-in{ from{ opacity: 0; transform: translateY(-16px) scale(.94);} to{ opacity: 1; transform: none;} }
@keyframes toast-out{ to{ opacity: 0; transform: translateY(-10px) scale(.96);} }

/* ---------- Stat tiles ---------- */
.stats-row{
  display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}
.stat-tile{
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-card);
}
.stat-tile .stat-num{
  font-family: var(--font-display);
  font-size: 1.7rem; line-height: 1.1; color: var(--teal-deep);
}
.stat-tile .stat-label{
  font-size: .74rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-faint); margin-top: 2px;
}

/* ---------- Dive cards ---------- */
.dive-card{
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--r-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-card);
  transition: transform .18s var(--ease-out), box-shadow .18s var(--ease-out);
}
.dive-card + .dive-card{ margin-top: 12px; }
.dive-card:hover{ transform: translateY(-1px); box-shadow: var(--shadow-pop); }
.dive-card__top{
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
}
.dive-card__title{ font-family: var(--font-display); font-size: 1.12rem; color: var(--navy); }
.dive-card__when{ color: var(--ink-faint); font-size: .82rem; white-space: nowrap; }
.dive-card__notes{ color: var(--ink-soft); font-size: .93rem; margin-top: 6px; }
.dive-card__foot{
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; margin-top: 12px; flex-wrap: wrap;
}
.dive-card__actions{ display: flex; gap: 8px; align-items: center; }

/* ---------- Chips ---------- */
.chip-row{ display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.chip{
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--chip-bg);
  border: 1px solid #E1F0F2;
  border-radius: var(--r-pill);
  padding: 6px 12px;
  font-size: .84rem; color: var(--ink-soft);
  white-space: nowrap;
}
.chip svg{ width: 14px; height: 14px; color: var(--teal-deep); }
.chip b{ color: var(--ink); font-weight: 600; }
.chip--good{ background: #EAFBF2; border-color: #C9EEDB; color: #0E7A47; }
.chip--warn{ background: #FFF7E6; border-color: #F4E3B8; color: #8A6410; }
.chip--bad{ background: #FFF0EE; border-color: #F6D2CC; color: #B03A2E; }

/* ---------- iOS switch ---------- */
.switch{
  position: relative; display: inline-flex; align-items: center; gap: 10px;
  cursor: pointer; user-select: none;
}
.switch input{ position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track{
  width: 50px; height: 30px; border-radius: var(--r-pill);
  background: #D8E4E8;
  transition: background .22s var(--ease-out);
  flex: 0 0 auto;
}
.switch .track::after{
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 24px; height: 24px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.22);
  transition: transform .22s var(--ease-spring);
}
.switch input:checked + .track{ background: var(--good); }
.switch input:checked + .track::after{ transform: translateX(20px); }
.switch .switch-label{ font-size: .92rem; font-weight: 600; color: var(--ink-soft); }

/* ---------- Forms ---------- */
.form-grid{
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.field{ display: flex; flex-direction: column; gap: 6px; }
.field > span{
  font-size: .8rem; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--ink-faint);
}
.input, textarea.input{
  font-family: var(--font-body);
  font-size: 1.02rem;
  padding: 12px 14px;
  border-radius: var(--r-sm);
  border: 1.5px solid #D7E4E8;
  background: #FBFEFE;
  color: var(--ink);
  width: 100%;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none; appearance: none;
}
.input:focus{
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(15,179,182,.16);
}
textarea.input{ resize: vertical; min-height: 88px; }
.input-unit{ position: relative; }
.input-unit .unit{
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  font-size: .82rem; color: var(--ink-faint); pointer-events: none;
}

/* ---------- Nearby spot cards ---------- */
.spot{
  border: 1px solid var(--card-line);
  border-radius: var(--r-md);
  padding: 15px 16px;
  margin: 12px 0;
  background: var(--card);
  box-shadow: var(--shadow-card);
}
.spot__title{
  display: flex; justify-content: space-between; align-items: center;
  gap: 10px; color: var(--navy);
}
.spot__title strong{ font-family: var(--font-display); font-weight: 400; font-size: 1.08rem; }
.spot__dist{
  font-weight: 700; color: var(--teal-deep); font-size: .84rem;
  background: rgba(15,179,182,.12); border-radius: var(--r-pill); padding: 4px 10px;
  white-space: nowrap;
}
.spot__notes{ color: var(--ink-soft); font-size: .9rem; margin-top: 8px; }
.spot__actions{ display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* ---------- Maps ---------- */
.map-shell{
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--card-line);
  box-shadow: var(--shadow-card);
  height: min(68vh, 640px);
  position: relative;
}
.map-shell .leaflet-container{ width: 100%; height: 100%; font-family: var(--font-body); }
.leaflet-popup-content-wrapper{
  border-radius: 14px !important;
  box-shadow: var(--shadow-pop) !important;
}
.leaflet-popup-content{ margin: 12px 16px !important; font-family: var(--font-body); }
.map-pop b{ font-family: var(--font-display); font-weight: 400; color: var(--navy); font-size: 1.02rem; }
.map-pop .pop-meta{ color: var(--ink-soft); font-size: .84rem; margin-top: 4px; }

.pin-dot{
  width: 26px; height: 26px; border-radius: 50% 50% 50% 4px;
  transform: rotate(-45deg);
  background: linear-gradient(160deg, var(--aqua), var(--teal-deep));
  border: 2.5px solid #fff;
  box-shadow: 0 3px 10px rgba(6,58,75,.35);
}
.pin-dot::after{
  content: ""; position: absolute; inset: 7px;
  border-radius: 50%; background: #fff; opacity: .9;
}
.pin-dot--mine{ background: linear-gradient(160deg, #FF9A8B, var(--coral)); }

/* ---------- Skeleton loaders ---------- */
.skeleton{
  position: relative; overflow: hidden;
  background: #E8F2F4; border-radius: var(--r-sm);
}
.skeleton::after{
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.75), transparent);
  animation: shimmer 1.4s infinite;
  transform: translateX(-100%);
}
@keyframes shimmer{ to{ transform: translateX(100%); } }

/* ---------- Empty states ---------- */
.empty{
  text-align: center; padding: 40px 20px;
  color: var(--ink-soft);
}
.empty .empty-art{ font-size: 44px; line-height: 1; margin-bottom: 12px; }
.empty h3{ font-family: var(--font-display); font-weight: 400; color: var(--navy); }

/* ---------- Lists / tables (legacy) ---------- */
.table{ width: 100%; border-collapse: collapse; }
.table th, .table td{ text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--card-line); }
ul.list{ list-style: none; margin: 0; padding: 0; }
ul.list li{ padding: 14px 0; border-bottom: 1px solid var(--card-line); }
ul.list li:last-child{ border-bottom: 0; }

/* ---------- Legacy flash (kept for safety) ---------- */
.flash{ display: none; }

/* ---------- Hero ---------- */
.hero{
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(34,211,238,.16), transparent 55%),
    var(--card);
}
.hero .hero-wave{
  position: absolute; left: 0; right: 0; bottom: -2px;
  width: 100%; height: 44px; opacity: .5; pointer-events: none;
}
.hero-actions{ display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

/* ---------- Utility ---------- */
.row-between{ display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.mt-1{ margin-top: 8px; } .mt-2{ margin-top: 16px; } .mt-3{ margin-top: 24px; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html{ scroll-behavior: auto; }
}