/* --------------------------
   RecycloAI – Charities / Listing (Glassy Eco Refresh)
---------------------------*/

/* Design tokens */
:root {
  /* Backgrounds (lighter, greener) */
  --bg: #0c2a20;                /* evergreen */
  --bg-2: #164535;              /* forest */

  /* Surfaces */
  --panel: rgba(26, 66, 52, 0.62); /* frosted green glass */
  --panel-solid: #1a4a39;          /* solid deep green */
  --chip: #184235;                 /* pill/list chip bg */

  /* Lines & shadows */
  --border: #2a6a56;               /* emerald-tinted border */
  --shadow: 0 12px 36px rgba(0,0,0,0.32);

  /* Text */
  --text: #eafbf3;                 /* minty white */
  --muted: #c2e5d9;                /* pale sage */

  /* Accents */
  --accent: #34d399;               /* emerald */
  --accent-2: #10b981;             /* teal */
  --success: #22c55e;              /* bright success */
  --danger: #ef4444;               /* error red */
  --ink-on-accent: #06241b;        /* text on green gradient */
}

* { box-sizing: border-box; }

/* Base */
body {
  margin: 0;
  color: var(--text);
  font-family: ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu;
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(52,211,153,.15), transparent 60%),
    radial-gradient(820px 520px at 90% 2%, rgba(16,185,129,.10), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
}

/* Utility: screen-reader-only */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Top bar back button */
.topbar { padding: 1rem; }
.back-btn {
  display: inline-flex; align-items:center; gap:.5rem;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  padding: 0.75rem 1.1rem;
  border-radius: 12px;
  color: var(--ink-on-accent);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(16,185,129,.22);
  transition: transform .12s ease, filter .2s ease, box-shadow .2s ease;
}
.back-btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.back-btn:active { transform: translateY(0); }
.back-btn:focus-visible { outline: 2px solid #99f6e4; outline-offset: 3px; }

/* Header & footer */
header, footer {
  padding: 1rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 28px rgba(0,0,0,.16);
}
@supports (backdrop-filter: blur(8px)){
  header, footer { backdrop-filter: blur(12px) saturate(110%); }
}
header h1 { margin: 0; font-size: 1.5rem; letter-spacing:.2px; }
main { padding: 1.25rem; max-width: 1100px; margin: 0 auto; }
footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  font-size: .95rem;
}

/* Controls */
.controls {
  display: grid;
  grid-template-columns: repeat(6, minmax(0,1fr));
  gap: .75rem;
  align-items: end;
  background: var(--panel);
  padding: 1rem;
  border:1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.control { display: flex; flex-direction: column; gap: .35rem; }
.control--full { grid-column: 1 / -1; }
.actions-row { display:flex; gap:.55rem; justify-content:flex-end; }

label { font-size: .86rem; color: var(--muted); font-weight: 600; }

input, select {
  padding: .65rem .75rem;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  color: var(--text);
  border:1px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, transform .12s ease, background .18s ease;
}
input::placeholder { color: var(--muted); }
input:focus, select:focus {
  border-color: rgba(52,211,153,.8);
  box-shadow: 0 0 0 4px rgba(52,211,153,.18);
  transform: translateY(-1px);
}

/* Buttons */
button {
  cursor: pointer; border: none; border-radius: 12px;
  padding: .75rem 1rem; font-weight: 800; letter-spacing:.2px;
  transition: transform .12s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: var(--ink-on-accent);
  box-shadow: 0 12px 26px rgba(16,185,129,.22), 0 2px 0 rgba(0,0,0,.24) inset;
}
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline:2px solid #99f6e4; outline-offset:3px; }

.btn-ghost {
  background: transparent; color: var(--text); border:1px solid var(--border);
  box-shadow: 0 0 0 rgba(0,0,0,0);
}
.btn-ghost:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn-ghost:focus-visible { outline:2px solid #99f6e4; outline-offset:3px; }

/* Pills */
.pills { display:flex; gap:.5rem; flex-wrap: wrap; }
.pill {
  font-size: .78rem; padding: .28rem .58rem; border-radius: 999px;
  border:1px solid var(--border); background: var(--chip); color:#e0fbf1;
  box-shadow: 0 8px 18px rgba(0,0,0,.18);
  transition: transform .12s ease, border-color .18s ease, background .18s ease;
}
.pill:hover { transform: translateY(-1px); border-color: rgba(52,211,153,.55); background: #1c5140; }

/* Toolbar */
.toolbar {
  margin-top: .75rem; display:flex; align-items:center; justify-content: space-between;
  gap: .75rem; color: var(--muted); font-size:.92rem;
}
.sort { display:flex; gap:.5rem; align-items:center; }

/* Results grid */
.results {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 1rem;
}

/* Cards */
.card {
  display:flex; flex-direction: column; gap:.55rem;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  border:1px solid var(--border);
  border-radius: 18px; padding: 1rem;
  box-shadow: var(--shadow);
  transition: transform .14s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
  overflow: hidden;
}
@supports (backdrop-filter: blur(8px)){
  .card { backdrop-filter: blur(10px) saturate(112%); }
}
.card::after{
  /* subtle top gradient gleam */
  content:""; position:absolute; left:0; right:0; top:0; height:38px; pointer-events:none;
  background: linear-gradient(180deg, rgba(255,255,255,.10), transparent);
}
.card h3 { margin:0; font-size: 1.08rem; letter-spacing:.2px; }
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0,0,0,.28);
  border-color: rgba(52,211,153,.45);
}

/* Meta row */
.meta {
  display:flex; gap:.55rem; flex-wrap: wrap; align-items:center;
  font-size:.88rem; color:#d9f6ec;
}
.rating { font-weight:800; color: #f7fee7; } /* soft light for rating */
.verified {
  display:inline-flex; align-items:center; gap:.35rem; font-size:.82rem; color: var(--success);
  padding: .15rem .45rem; border-radius: 999px;
  background: linear-gradient(180deg, rgba(34,197,94,.12), rgba(34,197,94,.06));
  border: 1px solid rgba(34,197,94,.32);
}
.verified svg { width: 14px; height: 14px; }

/* Card actions */
.actions { margin-top: auto; display:flex; gap:.55rem; }

/* Empty state */
.empty {
  text-align:center; color: var(--muted); padding: 2rem;
  border:1px dashed var(--border); border-radius: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
}

/* Banner */
.banner {
  margin: .75rem 0 0;
  padding: .75rem 1rem;
  border:1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  color: var(--muted);
}
.banner.error {
  color: #fecaca; /* soft red text */
  border-color: rgba(239, 68, 68, .45);
  background: linear-gradient(180deg, rgba(239,68,68,.12), rgba(239,68,68,.06));
}

/* Focus visible for interactive elements inside cards */
.card a:focus-visible, .card button:focus-visible {
  outline: 2px solid #99f6e4; outline-offset: 3px;
}

/* Responsive */
@media (max-width: 1024px){
  .results { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .controls{ grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (max-width: 640px){
  .results { grid-template-columns: 1fr; }
  .controls{ grid-template-columns: 1fr 1fr; }
}

/* Motion preference */
@media (prefers-reduced-motion: reduce){
  * { transition: none !important; animation: none !important; }
}

/* 1) Less glare overall (dial back halos) */
body{
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(52,211,153,.08), transparent 60%),
    radial-gradient(820px 520px at 90% 2%,  rgba(16,185,129,.06), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
}

/* Slightly dim panels so content pops without glare */
:root{
  --panel: rgba(26, 66, 52, 0.58);
  --panel-solid: #163e30;
  --chip: #173a2e;
  --border: #235d4b;
  --text: #e3f7ef;
  --muted: #b6dcd0;
}

/* 2) Website + Donate buttons (works for <a> or <button>) */
.actions a.btn-website,
.actions .btn-website,
.btn-website,
.actions a[href*="http"]:not([href*="donate"]),  /* auto-catch plain website links */
.actions .website {
  display:inline-flex; align-items:center; gap:.45rem;
  padding:.65rem .9rem;
  border-radius:12px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--border);
  color: var(--text);
  text-decoration:none;
  font-weight:700; letter-spacing:.2px;
  box-shadow: 0 8px 18px rgba(0,0,0,.18);
  transition: transform .12s ease, filter .2s ease, border-color .2s ease;
}
.actions a.btn-website:hover,
.actions .btn-website:hover,
.actions a[href*="http"]:not([href*="donate"]):hover,
.actions .website:hover{
  transform: translateY(-1px);
  filter: brightness(1.06);
  border-color: rgba(52,211,153,.5);
}
.actions a.btn-website:focus-visible,
.actions .btn-website:focus-visible,
.actions a[href*="http"]:not([href*="donate"]):focus-visible,
.actions .website:focus-visible{ outline:2px solid #99f6e4; outline-offset:3px; }

/* Donate = stronger call-to-action */
.actions a.btn-donate,
.actions .btn-donate,
.btn-donate,
.actions a[href*="donate"],
.actions .donate {
  display:inline-flex; align-items:center; gap:.45rem;
  padding:.65rem 1rem;
  border-radius:12px;
  background: linear-gradient(90deg, #22c55e, #10b981);
  color: var(--ink-on-accent);
  text-decoration:none;
  font-weight:800; letter-spacing:.2px;
  box-shadow: 0 12px 26px rgba(16,185,129,.22), 0 2px 0 rgba(0,0,0,.24) inset;
  transition: transform .12s ease, filter .2s ease, box-shadow .2s ease;
}
.actions a.btn-donate:hover,
.actions .btn-donate:hover,
.actions a[href*="donate"]:hover,
.actions .donate:hover{
  transform: translateY(-1px);
  filter: brightness(1.05);
}
.actions a.btn-donate:focus-visible,
.actions .btn-donate:focus-visible,
.actions a[href*="donate"]:focus-visible,
.actions .donate:focus-visible{ outline:2px solid #99f6e4; outline-offset:3px; }

/* Optional simple icons without HTML changes */
.btn-website::before,
.actions a[href*="http"]:not([href*="donate"])::before{ content:"↗"; opacity:.9; }
.btn-donate::before,
.actions a[href*="donate"]::before{ content:"❤"; opacity:.9; }

/* 3) Select menus: ensure options are readable on dark */
:root{ color-scheme: dark; } /* hint to browsers for dark popup UI */

.controls select,
.controls input[type="search"],
.controls input[type="text"],
.controls input:not([type]), /* generic text inputs if any */
.controls input[type="number"]{
  background-color: var(--panel-solid);
  color: var(--text);
  border:1px solid var(--border);
}

/* Force option list colors (supported browsers) */
.controls select option,
.controls select optgroup{
  background-color: #0f221b;   /* dark popup background */
  color: #e9fbf3;              /* readable text */
}

/* Highlight states inside the dropdown (where supported) */
.controls select option:checked,
.controls select option:focus,
.controls select option:hover{
  background-color: #1b3d33;
  color: #e9fbf3;
}

/* Strong, but not blinding focus ring */
.controls select:focus,
.controls input:focus{
  border-color: rgba(52,211,153,.75);
  box-shadow: 0 0 0 3px rgba(52,211,153,.20);
  transform: translateY(-1px);
}

/* Avoid any stacking/overlay weirdness with dropdowns */
.controls{ position: relative; z-index: 0; }

/* =========================
   FLICKER FIX (cards/grid)
   ========================= */

/* 1) Give the grid its own paint container so children don’t fight for layers */
.results{
  contain: paint;           /* isolates painting of children */
  isolation: isolate;       /* new stacking context; helps with sticky header blends */
  will-change: contents;    /* hint without over-promoting each child */
}

/* 2) Make each card its own stable layer (no z-fighting with neighbors) */
.card{
  transform: translateZ(0);         /* promote to GPU layer */
  backface-visibility: hidden;      /* avoid backside artifacts */
  will-change: transform, box-shadow;
}

/* Keep the same transform property across states (prevents layer churn) */
.card:hover{
  transform: translateY(-2px) translateZ(0);
}

/* 3) Turn OFF backdrop-filter on cards (most common flicker culprit) */
.card{
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
}

/* Keep glass on big panels/header where it’s safer */
@supports (backdrop-filter: blur(8px)){
  .controls, header, footer{
    -webkit-backdrop-filter: blur(12px) saturate(110%);
    backdrop-filter: blur(12px) saturate(110%);
  }
}

/* 4) Shadows/filters are expensive—dial them back slightly to reduce repaints */
.card{
  box-shadow: 0 10px 28px rgba(0,0,0,.26);   /* was heavier */
}
.card:hover{
  box-shadow: 0 16px 36px rgba(0,0,0,.28);
}

/* 5) Dropdowns over grid: ensure the select popover never “clips” cards */
.controls{ position: relative; z-index: 2; }
.results{ position: relative; z-index: 1; }

/* 6) If you still see flashes on some GPUs, disable transform on hover as a last resort */
/* .card:hover{ transform: none; } */