/* =========================================
   Variables
   ========================================= */

/*
  Core variables derived from experiments/link_cards_ui.html
  Mapping legacy variable names to the new design tokens so that
  existing components continue to work.
*/
:root {
  /* Fonts */
  --font-body: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* Neutral dark */
  --bg: #0e1220;
  --surface: #14192a;         /* cards */
  --surface-2: #101524;       /* page chrome */
  --text: #e8ecf6;
  --text-dim: #a7afc6;
  --border: #24293a;

  /* Accents */
  --accent: #f2c5ff;
  --indigo: #7468ff;
  --cyan: #44c6ff;

  /* Subtle effects */
  --radius: 14px;
  --shadow-1: 0 10px 30px rgba(0,0,0,.35);
  --shadow-2: 0 2px 8px rgba(0,0,0,.35);
  --pill-bg: rgba(140,160,255,.10);
  --pill-bd: rgba(140,160,255,.28);

  /* Legacy variable aliases */
  --color-text: var(--text);
  --color-muted: var(--text-dim);
  --color-date: var(--text-dim);
  --color-scheme: #9db1ff;
  --color-domain: #eef2ff;
  --color-path: #c2c8da;
  --color-route: #c7c1ff;
  --color-query: #9db1ff;
  --color-query-key: #ffd78a;
  --color-query-value: #b4ffea;
  --color-button: var(--text-dim);
  --color-button-hover: var(--text);
  --color-accent: var(--accent);

  --bg-body: var(--bg);
  --bg-card: var(--surface);
  --border-color: var(--border);
  --outline-color: var(--surface-2);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: var(--radius);

  --shadow-header: var(--shadow-2);
  --shadow-card: var(--shadow-1);
  --shadow-modal: 0 4px 12px rgba(0,0,0,0.25);

  --highlight: yellow;

  --blur: 14px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface-2: #f1f3f9;
    --text: #151826;
    --text-dim: #566080;
    --border: #e5e8f0;
    --shadow-1: 0 8px 24px rgba(0,0,0,.08);
    --shadow-2: 0 1px 4px rgba(0,0,0,.08);
    --pill-bg: rgba(110,130,255,.10);
    --pill-bd: rgba(110,130,255,.24);
  }
}

/* =========================================
   Base styles
   ========================================= */

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(900px 700px at 10% 0%, rgba(116,104,255,.06), transparent 60%),
    radial-gradient(900px 700px at 100% 100%, rgba(68,198,255,.05), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--text);
  font: 14px/1.45 var(--font-body);
}

:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

::selection {
  background: var(--color-accent);
  color: var(--bg);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  margin: 0.2em 0;
}

mark {
  background-color: var(--highlight);
  padding: 0;
}

/* =========================================
   Buttons
   ========================================= */
.btn{
  --btn-bg: var(--surface);
  --btn-fg: var(--text);
  --btn-bd: var(--border);
  --btn-grad-a: rgba(116,104,255,.22);
  --btn-grad-b: rgba(68,198,255,.22);

  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius);
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-bd);
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease, transform .04s ease;
  box-shadow: var(--shadow-1);
}
.btn::before{
  content:""; position:absolute; inset:0; border-radius:inherit; padding:1px; pointer-events:none;
  background: linear-gradient(135deg, var(--btn-grad-a), var(--btn-grad-b));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity:.16;
}
.btn--sm { padding:8px 12px; font-size:13px; border-radius:10px }
.btn--lg { padding:14px 18px; font-size:16px; border-radius:14px }
.btn--icon{ width:40px; height:40px; padding:0 }
.btn--lg.btn--icon{ width:52px; height:52px }
.btn svg{ width:16px; height:16px }
.btn--lg svg{ width:20px; height:20px }
.btn:hover{ border-color: color-mix(in oklab, var(--btn-bd), var(--indigo) 20%) }
.btn:active{ transform: translateY(1px) }
.btn[disabled]{ opacity:.55; cursor:not-allowed }
.btn:focus-visible,
.btn.is-selected{
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}
.btn--primary{
  --btn-bg: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0) 80%), #1a2140;
  --btn-fg: #f8f9ff;
  --btn-bd: #2a3250;
  --btn-grad-a: rgba(242,197,255,.35);
  --btn-grad-b: rgba(116,104,255,.30);
}
.btn--primary:hover{
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,0) 80%), #1c2547;
  border-color: color-mix(in oklab, var(--btn-bd), var(--accent) 30%);
}
.btn--secondary{
  --btn-bg: var(--surface);
  --btn-fg: var(--text);
  --btn-bd: var(--border);
  --btn-grad-a: rgba(116,104,255,.22);
  --btn-grad-b: rgba(68,198,255,.22);
}
.btn.is-loading { position:relative; color:transparent !important }
.btn.is-loading > *:not(.spinner){ opacity:0 }
.spinner{ position:absolute; inset:0; display:grid; place-items:center; }
.spinner:before{
  content:""; width:16px; height:16px; border-radius:50%;
  border:2px solid color-mix(in oklab, var(--accent), transparent 50%);
  border-top-color: var(--accent);
  animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg) } }

button.plain {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

button.plain:hover {
  text-decoration: underline;
}

/* =========================================
   Layout
   ========================================= */

header {
  position: fixed;
  width: 100%;
  top: 0;
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  z-index: 1000;
  display: flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap: wrap;
  padding: 1rem 0;
}

main {
  padding: 5rem 1.5rem 3rem 1.5rem;
}

.wrap { max-width: 100%; margin: 0 auto; }

.title { margin:0 0 0 1rem; font-weight:700; font-size:20px; letter-spacing:.01em; order: 1; width: 6rem; }

#loading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1001;
  width: 100%;
  height: 4px;
  display: none;
}

.link-list {
  --g: 26px;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--g);
}

#cards { padding:0; }

#pagination {
  display: none;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0 2rem;
}
/* buttons within pagination use .btn classes */

/* =========================================
   Search & filters
   ========================================= */

.search { flex: 1; order: 2; margin: 0 auto; text-align: center; display:flex; gap:0.5rem; align-items:center; padding:8px 10px; width: 420px; }
.search input { flex:1; border:0; background:transparent; color:var(--text); font-size:1.2rem; font-weight: 200; } 
.search input:focus { outline: none !important; text-decoration: underline }
.search svg { opacity:.85; }

#settings-link { order: 4; margin-left: auto; margin: 0; color: var(--text); text-decoration:none; font-size:20px; } 
#settings-header>h1 { text-align: center; }

#version { order: 3; font-size: 0.8rem; color: var(--text-dim); font-family: var(--font-mono); margin: 0 1rem }

#selected-tags { order: 5; flex-basis: 100%; text-align: center; display:flex; flex-wrap:wrap; gap:6px; margin: 0 1rem; }
.selected-tag { display:inline-block; padding:2px 8px; font-size:12px; color:var(--text); background:var(--pill-bg); border:none; cursor:pointer; }
.selected-tag .remove-tag { margin-left:4px; }
.query-pill { display:none !important; align-items:center; }
.query-pill .remove-query { margin-left:4px; }

#sort-container { margin: 1rem 0; }
#sort-select { background: var(--surface-2); border:1px solid var(--border); border-radius:10px; color:var(--text); font-size:0.9rem; padding:6px 10px; }

.suggestions {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  max-height: 500px;
  overflow-y: auto;
  padding: 8px 0;
  position: fixed;
  top: calc(100% + 4px);
  width: 96%;
  left: 2%;
  top: 4rem;
  z-index: 1000;
}

.suggestion-item {
  color: var(--color-text);
  cursor: pointer;
  padding: 0.5rem 1rem;
}

.suggestion-item > .date { float: right; }

.tag-suggestion {
  cursor: pointer;
}

.suggestion-item.selected,
.suggestion-item:hover {
  background: var(--border-color);
}

.suggestion-title {
  margin-left: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

/* =========================================
   Card components
   ========================================= */

.link-card {
  position: relative;
  padding: 14px 16px 12px;
  outline: none;
  opacity: 0;
  transform: translateY(20px);
  transition: border-color .18s ease, box-shadow .18s ease, opacity .3s ease, transform .3s ease;
  display: flex;
  flex-direction: column;
  padding: 0.5rem;
}

.link-card:focus-visible,
.link-card.is-selected {
  border-color: var(--border);
  box-shadow: var(--shadow-1);
  outline: 2px solid var(--color-accent);
  outline-offset: 5px;
  border-radius: 2px;
}

.link-card:hover { border-color: color-mix(in oklab, var(--border), var(--indigo) 20%); }

.link-card.visible { opacity:1; transform: translateY(0); }

.link-card:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 5%;
  right: 5%;
  bottom: calc(-0.5 * var(--g)); /* sit centered in the gutter */
  height: 1px;
  pointer-events: none;
  background-color: color-mix(in srgb, var(--text) 20%, transparent);
}

.link-card > .top { display: flex; align-items: center; gap: 0.5rem; }
.link-card > .top > .left { display: flex; flex: 1; gap: 0.5rem; min-width: 0; }
.link-card > .top > .right { display: flex; flex-shrink: 0; margin-left: auto; align-items: center; gap: 0.5rem; }
.link-card > .bottom { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem }

.url {
  font-family: var(--font-mono);
  font-size: 13.75px;
  white-space: nowrap;
  text-overflow: ellipsis;
  flex: 0 0 70%;
  white-space: normal;
  word-break: break-all;
  overflow: hidden;
  overflow-wrap: anywhere;
  align-content: end;
}

.url .scheme { color: var(--color-scheme); }
.url .domain { color: var(--color-domain); font-weight:700; }
.url .path { color: var(--color-path); }
.url .route { color: var(--color-route); }
.url .query { color: var(--color-query); }
.url .query-key { color: var(--color-query-key); }
.url .query-value { color: var(--color-query-value); }

.title-row { display:flex; flex: 1; align-items:baseline; gap:10px; overflow:hidden; }
.link-title { font-weight:700; letter-spacing:.01em; font-size:15.5px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; width:100%; }
.date { color: var(--text-dim); border:1px solid var(--border); background:var(--surface-2); padding:2px 8px; border-radius:999px; font-size:12px; flex:0 0 auto; white-space: nowrap; }

.tags { display:flex; flex-wrap:wrap; gap:6px; margin-top:8px; }
.tag-pill { display:inline-block; padding:2px 8px; font-size:12px; color:var(--surface); background-color: color-mix(in srgb, var(--accent) 50%, transparent); border-left: 2px solid var(--accent) }

.actions { display:none; gap:8px; margin-top:10px; }
.actions > .btn { gap: 0; }
.shortcut { text-decoration: none; }
.btn .shortcut { text-decoration: underline; }

.url[data-pretty="true"] { white-space: pre-line; }
.url[data-pretty="false"] { white-space: normal; }

.edit-url { background: transparent; border: none; padding: 0; font-family: var(--font-mono); font-size:13.75px; }
.edit-title,
.edit-tags {
  background: transparent;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  font-size:14px;
  width:100%;
  margin-top:11px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--color-text);
}

.edit-title

/* =========================================
   Misc content
   ========================================= */

#no-results {
  color: var(--color-muted);
  font-size: 1rem;
  margin: auto;
  width: 50%;
}

/* =========================================
   Dialog / Modal
   ========================================= */

dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-modal);
  color: var(--color-text);
  font-family: var(--font-body);
  padding: 1.25em;
  width: 90%;
  max-width: 450px;
}

dialog::backdrop {
  backdrop-filter: blur(4px);
  background: rgba(0,0,0,0.3);
}

dialog label {
  color: var(--color-text);
  display: block;
  font-weight: 600;
  margin-bottom: 0.5em;
}

dialog input,
dialog textarea {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-sizing: border-box;
  color: var(--color-text);
  font-size: 1rem;
  margin-bottom: 1em;
  padding: 0.5em;
  width: 100%;
}

dialog textarea {
  line-height: 1.4;
  min-height: 4em;
  resize: vertical;
  white-space: pre-wrap;
  word-wrap: break-word;
}

dialog menu {
  display: flex;
  flex-direction: row-reverse;
  gap: 1em;
  justify-content: center;
  margin-top: 0.5em;
}
/* dialog and settings buttons now use .btn classes */

/* =========================================
   Settings
   ========================================= */

#settings-link,
#back-link {
  font-family: var(--font-body);
  color: var(--color-button);
  font-size: 1.5rem;
  text-decoration: none;
  border-radius: infinite;
}

#settings-link {
  margin-right: 1rem;
}

#back-link {
  margin-left: 1rem;
}

#settings-link:hover,
#back-link:hover {
  color: var(--color-button-hover);
}

#back-link {
  left: 2rem;
  position: absolute;
}

#settings-container {
  margin: 2rem auto;
  max-width: 600px;
  padding: 0 1rem;
}

#settings-container h1 {
  color: var(--color-text);
  margin-bottom: 1rem;
  text-align: center;
}

.settings-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin: 2rem auto;
  max-width: 600px;
  padding: 1rem;
}

.settings-section + .settings-section {
  border-top: 1px solid var(--border-color);
  margin-top: 2rem;
}

.settings-section aside.note {
  color: var(--color-scheme);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

#title-section input[type="checkbox"] {
  accent-color: var(--color-route);
  height: 1.1rem;
  margin-right: 0.4rem;
  width: 1.1rem;
}

/* =========================================
   Toast notifications
   ========================================= */

#toast-container {
  align-items: flex-end;
  bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
  position: fixed;
  right: 1rem;
  z-index: 1000;
}

.toast {
  background: rgba(0,0,0,0.85);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.9rem;
  opacity: 0;
  padding: 0.6rem 1rem;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   End
   ========================================= */