@font-face {
  font-family: "Roboto";
  src: url("assets/fonts/Roboto-Regular.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "Playfair";
  src: url("assets/fonts/PlayfairDisplay-VariableFont_wght.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "Doto";
  src: url("assets/fonts/DotoVariableFont.ttf") format("truetype");
  font-display: swap;
}

:root {
  --main: #7e55a3;
  --secondary: #1e1a44;
  --accent: #d16ba5;
  --highlight: #ffc857;
  --page: #ffffff;
  --text: #242424;
  --card: #f5f5f5;
  --placeholder: #bdbdbd;
  --border: #d0d0d0;
  --font: "Roboto", Arial, sans-serif;
  --font-size: 16px;
  --phone-width: 390px;
  --phone-height: 844px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(circle at 20% 20%, rgba(126,85,163,.18), transparent 32%),
    radial-gradient(circle at 80% 80%, rgba(209,107,165,.14), transparent 35%),
    #eeeaf3;
  color: var(--text);
}
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }

.demo-back-home {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 999;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.8rem;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: #333;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(8px);
}

.demo-back-home:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.demo-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 20px;
}
.demo-meta {
  width: min(760px, calc(100vw - 40px));
  margin: 0 auto 14px;
  text-align: center;
  color: #514a5c;
  font-size: 13px;
}
.demo-meta strong { color: var(--secondary); }
.phone {
  position: relative;
  width: min(var(--phone-width), calc(100vw - 28px));
  height: min(var(--phone-height), calc(100vh - 80px));
  min-height: 640px;
  overflow: hidden;
  border: 10px solid #111218;
  border-radius: 44px;
  background: var(--page);
  box-shadow: 0 30px 80px rgba(30, 26, 68, .25), inset 0 0 0 1px rgba(255,255,255,.08);
}
.phone::before {
  content: "";
  position: absolute;
  z-index: 50;
  top: 9px;
  left: 50%;
  width: 116px;
  height: 25px;
  transform: translateX(-50%);
  border-radius: 18px;
  background: #111218;
  pointer-events: none;
}
.status-bar {
  position: relative;
  z-index: 20;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px 0;
  background: var(--page);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
}
.status-icons { display: flex; gap: 5px; align-items: center; }
.status-dot { width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
.status-battery { width: 17px; height: 8px; border: 1px solid currentColor; border-radius: 2px; position: relative; }
.status-battery::after { content:""; position:absolute; right:-3px; top:2px; width:2px; height:3px; background:currentColor; }
.status-battery::before { content:""; position:absolute; left:1px; top:1px; width:11px; height:4px; background:currentColor; }

.app {
  position: relative;
  height: calc(100% - 44px);
  background: var(--page);
  color: var(--text);
}
.app-content {
  position: absolute;
  inset: 0 0 72px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: none;
  background-color: var(--page);
  background-size: cover;
  background-position: center;
}
.app-content::-webkit-scrollbar { display: none; }

.top-bar {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 10px;
  min-height: 60px;
  padding: 10px;
  background: var(--page);
}
.profile-photo, .settings-preview-photo {
  overflow: hidden;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--main), var(--secondary));
  color: white;
}
.profile-photo { width: 40px; height: 40px; }
.profile-photo img, .settings-preview-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.profile-photo img.is-missing, .settings-preview-photo img.is-missing { opacity: 0; }
.user-name { font-size: var(--font-size); }
.app-name { font-size: var(--font-size); font-weight: 700; }

.feed { padding: 0 10px 12px; }
.media-card {
  overflow: hidden;
  margin: 5px 0 10px;
  padding: 5px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--card);
}
.media-image-wrap { position: relative; height: 200px; overflow: hidden; background: linear-gradient(145deg, #332c62, #8a5daf 55%, #d16ba5); }
.media-image-wrap::after, .search-tile::after, .detail-image-wrap::after, .bookmark-thumb::after {
  content: "NASA MEDIA";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255,255,255,.72);
  font-size: 11px;
  letter-spacing: .18em;
  font-weight: 700;
  pointer-events: none;
}
.media-image, .search-tile img, .detail-image, .bookmark-thumb img {
  position: relative;
  z-index: 2;
  width: 100%; height: 100%; object-fit: cover; display:block;
}
.media-image.is-missing, .search-tile img.is-missing, .detail-image.is-missing, .bookmark-thumb img.is-missing { opacity: 0; }
.bookmark-btn {
  position: absolute;
  z-index: 4;
  top: 5px;
  right: 5px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 4px;
  border: 0;
  border-radius: 12px;
  background: var(--card);
}
.bookmark-btn img { width: 24px; height: 24px; object-fit: contain; }
.media-details {
  padding: 8px 6px;
  background: var(--main);
  color: var(--text);
}
.media-details h2 { margin:0 0 5px; color: var(--text); font-size: var(--font-size); font-weight: 700; }
.media-details p { margin:0; color: var(--text); font-size: var(--font-size); line-height:1.32; display:-webkit-box; -webkit-box-orient:vertical; -webkit-line-clamp:2; overflow:hidden; }
.card-open { display:block; color:inherit; text-decoration:none; }

.search-page { padding: 10px 5px 15px; }
.search-input {
  width: calc(100% - 10px);
  height: 48px;
  margin: 0 5px 10px;
  padding: 0 14px;
  border: 0;
  border-radius: 8px;
  outline: none;
  background: var(--card);
  color: var(--text);
  font-size: var(--font-size);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.04);
}
.search-input::placeholder { color: var(--placeholder); }
.search-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.search-tile { position:relative; height:200px; overflow:hidden; border:1px solid var(--accent); border-radius:8px; background:linear-gradient(145deg,#392f6c,#d16ba5); }
.search-tile a { display:block; width:100%; height:100%; }
.search-empty { grid-column:1/-1; padding:30px 18px; text-align:center; color:var(--placeholder); }

.bookmarks-page { padding:10px; }
.bookmark-list { display:grid; gap:10px; }
.bookmark-item {
  position:relative;
  display:grid;
  grid-template-columns:60px 1fr auto;
  align-items:center;
  gap:10px;
  min-height:82px;
  padding:10px;
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--card);
}
.bookmark-main { min-width:0; color:inherit; text-decoration:none; }
.bookmark-main strong, .bookmark-main span, .bookmark-main small { display:block; }
.bookmark-main strong { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; font-size:var(--font-size); }
.bookmark-main span { margin-top:3px; display:-webkit-box; -webkit-box-orient:vertical; -webkit-line-clamp:2; overflow:hidden; font-size:calc(var(--font-size) * .88); }
.bookmark-main small { margin-top:5px; font-size:calc(var(--font-size) * .78); font-style:italic; opacity:.75; }
.bookmark-thumb { position:relative; width:60px; height:60px; overflow:hidden; border-radius:5px; background:linear-gradient(145deg,#392f6c,#d16ba5); }
.bookmark-thumb::after { font-size:6px; }
.remove-bookmark { align-self:stretch; width:52px; padding:4px; border:0; border-radius:6px; background:var(--accent); color:white; font-size:11px; }
.empty-bookmarks { width:300px; max-width:100%; min-height:150px; margin:20px auto; padding:20px; display:grid; place-content:center; gap:8px; text-align:center; border:1px solid var(--border); border-radius:8px; background:var(--card); }
.empty-bookmarks strong { font-size:var(--font-size); }
.empty-bookmarks span { font-size:var(--font-size); }

.settings-page { padding: 0 20px 20px; }
.settings-card {
  margin: 0 0 10px;
  padding: 10px;
  border-radius: 8px;
  background: var(--card);
}
.settings-card h2 { margin:0 0 10px; font-size:var(--font-size); }
.field { display:grid; gap:4px; margin:9px 0; }
.field label { font-weight:700; font-size:calc(var(--font-size) * .9); }
.field input, .field select, .field textarea {
  width:100%; min-height:40px; padding:8px 10px; border:1px solid var(--border); border-radius:6px; background:var(--page); color:var(--text); outline:none;
}
.field input[type="range"] { padding:0; accent-color:var(--main); }
.switch-row { display:flex; justify-content:space-between; align-items:center; gap:12px; }
.switch { position:relative; width:48px; height:28px; }
.switch input { opacity:0; width:0; height:0; }
.switch span { position:absolute; inset:0; border-radius:999px; background:#aaa; transition:.2s; }
.switch span::before { content:""; position:absolute; width:22px; height:22px; left:3px; top:3px; border-radius:50%; background:white; transition:.2s; }
.switch input:checked + span { background:var(--main); }
.switch input:checked + span::before { transform:translateX(20px); }
.settings-preview-photo { width:100px; height:100px; margin:10px auto; }
.primary-button {
  width:100%; min-height:44px; padding:10px 14px; border:0; border-radius:8px; background:var(--main); color:white; font-weight:600;
}
.about-copy { font-size:calc(var(--font-size) * .9); line-height:1.45; }
.about-copy p { margin:7px 0; }
.about-copy a { color:var(--accent); }

.detail-page { padding: 20px; }
.detail-image-wrap { position:relative; height:300px; overflow:hidden; background:linear-gradient(145deg,#322b61,#8a5daf,#d16ba5); }
.detail-page h1 { margin:10px 0 5px; font-size:var(--font-size); }
.detail-description { max-height:150px; overflow:auto; margin-bottom:18px; line-height:1.4; font-size:var(--font-size); }
.detail-meta { font-size:calc(var(--font-size) * .78); opacity:.74; margin-bottom:14px; }
.detail-page label { display:block; margin-bottom:6px; font-weight:700; font-size:var(--font-size); }
.detail-page textarea { width:100%; min-height:100px; padding:10px; resize:vertical; border:1px solid var(--border); border-radius:6px; background:var(--card); color:var(--text); }
.detail-page .primary-button { margin-top:12px; }

.tab-bar {
  position:absolute;
  z-index:30;
  left:0; right:0; bottom:0;
  height:72px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  padding:7px 5px 10px;
  border-top:1px solid rgba(0,0,0,.08);
  background:var(--page);
}
.tab {
  display:grid;
  justify-items:center;
  align-content:center;
  gap:3px;
  color:var(--text);
  text-decoration:none;
  font-size:10px;
  opacity:.68;
}
.tab img { width:23px; height:23px; object-fit:contain; filter:none; }
.tab.active { color:var(--main); opacity:1; font-weight:700; }
.tab.active img { filter: drop-shadow(0 0 0 var(--main)); }

.toast {
  position:absolute;
  z-index:80;
  left:50%; bottom:88px;
  transform:translate(-50%,12px);
  min-width:210px; max-width:82%;
  padding:10px 13px;
  border-radius:8px;
  background:#111218;
  color:white;
  text-align:center;
  font-size:12px;
  opacity:0;
  pointer-events:none;
  transition:.18s ease;
}
.toast.show { opacity:1; transform:translate(-50%,0); }

body.dark {
  --page:#1e1a44;
  --text:#ffffff;
  --card:#2a2a2a;
  --placeholder:#757575;
  --border:#55505f;
}
body.bg-galaxy .app-content { background-image: linear-gradient(rgba(30,26,68,.68),rgba(30,26,68,.68)), url("assets/images/galaxy_background.png"); }
body.bg-space .app-content { background-image: linear-gradient(rgba(30,26,68,.58),rgba(30,26,68,.58)), url("assets/images/space_background.png"); }
body.bg-default .app-content { background-image: url("assets/images/default_background.png"); }
body.bg-galaxy .app-content, body.bg-space .app-content { background-attachment:local; }

@media (max-width: 520px) {
  body { background:var(--page); }
  .demo-shell { display:block; min-height:100vh; padding:0; }
  .demo-meta { display:none; }
  .phone { width:100vw; height:100vh; min-height:600px; border:0; border-radius:0; box-shadow:none; }
  .phone::before { display:none; }
}


body { background: #fff; }
.phone { margin-inline: auto; }
h1, h2, h3, strong, label, .app-name, .media-details h2, .tab.active, .status-bar { font-weight: 1; }