:root {
  color-scheme: light;
  --bg: #ffffff;
  --fg: #333333;
  --muted: #666666;
  --primary: #cd1627;
  --accent: #cd1627;
  --border: #e5e7eb;
  --card: #ffffff;
  --shadow: 0 10px 30px rgba(0,0,0,0.1);
  --font-primary: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-primary);
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  position: relative;
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden; /* tránh tràn ngang trên mobile */
}

/* Blurred background image layer */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url('bg.png');
  background-size: cover;
  background-position: center;
  filter: blur(8px);
  transform: scale(1.06); /* tránh hở viền khi blur */
  z-index: -1;
}

body { background-color: #ffffff; }

@keyframes gradualFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
.topbar {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to right, rgba(248,250,252,.9), rgba(238,242,255,.9));
}
.brand {
  display: flex;
  align-items: center;
}
.logo {
  height: 64px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
}
.spacer{flex:1}
.actions {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}

.badge {
  padding: 6px 12px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 14px;
  color: var(--primary);
  background: rgba(205, 22, 39, 0.1);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.badge:hover {
  background: rgba(205, 22, 39, 0.15);
}
.caret {
  appearance: none;
  background: rgba(205, 22, 39, 0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  line-height: 1;
  font-size: 16px;
  color: var(--primary);
  transition: all 0.2s ease;
}

.caret:hover {
  background: rgba(205, 22, 39, 0.1);
}

.caret.rotate {
  transform: rotate(180deg);
  background: rgba(205, 22, 39, 0.15);
}

.dropdown {
  position: absolute;
  right: 0;
  top: 110%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 12px;
  display: none;
  min-width: 160px;
  z-index: 10;
}

.dropdown.show {
  display: block;
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.dropdown .menu-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--primary);
  font-weight: 500;
  transition: all 0.2s ease;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 14px;
}

.dropdown .menu-item:hover {
  background: rgba(205, 22, 39, 0.08);
}

.dropdown .menu-item:active {
  background: rgba(205, 22, 39, 0.12);
}
.container {
  max-width: 920px;
  margin: 40px auto;
  padding: 0 24px;
}

@media (max-width: 768px) {
  .container {
    margin: 16px auto;
    padding: 0 12px;
  }
  
  .card {
    padding: 20px 16px;
    margin: 0 -12px;
    border-radius: 16px;
  }

  .search-title {
    font-size: 20px;
    margin-bottom: 20px;
  }
  
  #searchForm {
    gap: 12px;
  }

  #searchForm button {
    margin-top: 24px;
    width: 100%;
    height: 48px;
  }

  input {
    padding: 12px;
    font-size: 15px;
  }

  .logo {
    height: 48px;
  }

  .topbar {
    padding: 8px 12px;
  }

  .badge {
    font-size: 13px;
    padding: 4px 10px;
  }

  .caret {
    padding: 6px 10px;
  }

  .dropdown {
    right: -12px;
    padding: 8px;
  }

  .dropdown .menu-item {
    padding: 10px;
    font-size: 14px;
  }

  .tile {
    padding: 20px;
  }

  .tile-title {
    font-size: 16px;
  }

  .tile-sub {
    font-size: 14px;
  }

  .actions {
    gap: 6px;
  }

  .link {
    font-size: 14px;
    padding: 6px 10px;
  }

  .link .arrow {
    font-size: 18px;
  }
}
.card {
  background: var(--card);
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
  animation: slideUp 0.5s ease-out;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.search-title {
  color: var(--primary);
  font-size: 24px;
  margin: 0 0 24px 0;
  text-align: center;
  font-weight: 700;
}

.card:hover {
  transform: translateY(-5px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.tile {
  display: block;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.8);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.tile:hover{border-color:#a3a3a3;transform:translateY(-1px)}
.tile-title{font-weight:700;margin-bottom:4px}
.inline {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}

#searchForm {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
}

#searchForm label {
  flex: 1;
  min-width: 240px;
  margin: 0;
}

#searchForm input {
  margin: 0;
  height: 44px;
}

#searchForm button {
  height: 44px;
  min-width: 120px;
  margin-top: 32px;
  padding: 0 24px;
}
label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  font-weight: 500;
  color: var(--primary);
}

input {
  padding: 12px 16px;
  border-radius: 12px;
  border: 2px solid #e2e8f0;
  font-size: 16px;
  outline: none;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.9);
}

/* Giảm độ mờ placeholder (cho dễ đọc) */
input::placeholder { color: rgba(17, 24, 39, 0.55); }
input:-ms-input-placeholder { color: rgba(17, 24, 39, 0.55); }
input::-ms-input-placeholder { color: rgba(17, 24, 39, 0.55); }

input:hover {
  border-color: #cbd5e1;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(205, 22, 39, 0.1);
  background: #ffffff;
}

button {
  padding: 12px 24px;
  border-radius: 12px;
  border: none;
  background: #cd1627;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(205, 22, 39, 0.2);
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(205, 22, 39, 0.3);
  background: #b31321;
}

button:active {
  transform: translateY(0);
  background: #a11220;
}
button:disabled{opacity:.7;cursor:default}
/* Show a spinner on disabled buttons (used during login submit) */
button:disabled::before{
  content:"";
  width:16px;height:16px;display:inline-block;margin-right:8px;
  border:2px solid rgba(255,255,255,0.35);border-top-color:#fff;border-radius:50%;
  animation: spin .8s linear infinite;vertical-align:-3px;
}
.link {
  appearance: none;
  background: transparent;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.link:hover {
  background: rgba(205, 22, 39, 0.08);
}

.link:active {
  background: rgba(205, 22, 39, 0.12);
}

.link .arrow {
  font-size: 20px;
  line-height: 1;
  font-family: system-ui;
}
.badge {
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
}
.badge.free { background: #eaffea; color: #0f7b0f; border-color: #86efac; }
.badge.premium { background: #ffe9e9; color: #b20707; border-color: #fca5a5; }
.link {
  appearance: none;
  background: transparent;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
}
.badge {
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
}
.badge.free { background: #eaffea; color: #0f7b0f; border-color: #86efac; }
.badge.premium { background: #ffe9e9; color: #b20707; border-color: #fca5a5; }
.msg {
  min-height: 22px;
  color: #dc2626;
  font-size: 14px;
  padding: 8px 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.msg:not(:empty) {
  opacity: 1;
}
.viewer{margin-top:12px}
.placeholder{padding:24px;text-align:center;border:1px dashed #cbd5e1;border-radius:12px;color:var(--muted)}
.placeholder .inline-actions{margin-top:12px}
.responsive-iframe{position:relative;width:100%;padding-top:56.25%;border-radius:12px;overflow:hidden}
.responsive-iframe>iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.embed-header{display:flex;gap:8px;justify-content:flex-start;margin:6px 0 10px}
.choice{appearance:none;background:#fff;color:#cd1627;border:1px solid #cd1627;border-radius:10px;padding:8px 14px;font-weight:700;cursor:pointer}
.choice:hover{background:#fff5f6}
.choice.active{background:#cd1627;color:#fff;border-color:#cd1627}
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  display: none;
  animation: spin 0.8s linear infinite;
  margin-right: 8px;
  vertical-align: -4px;
}

button.loading .spinner {
  display: inline-block;
}

button.loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0.8;
}
@keyframes spin{to{transform:rotate(360deg)}}
h1 {
  margin: 8px 0 24px;
  color: var(--primary);
  font-size: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}

h2 {
  margin: 8px 0 24px;
  color: var(--primary);
  font-size: 24px;
}

/* Text selection in brand red */
::selection { background: #cd1627; color: #fff; }
::-moz-selection { background: #cd1627; color: #fff; }

/* Responsive (mobile) enhancements */
@media (max-width: 640px) {
  .topbar { position: sticky; top: 0; z-index: 50; padding: 6px 8px; }
  .logo { height: 28px; }
  .container { margin: 12px auto; padding: 0 10px; }
  .card { padding: 10px; border-radius: 10px; box-shadow: 0 3px 10px rgba(0,0,0,.08); }
  .grid { grid-template-columns: 1fr; gap: 10px; }
  #searchForm { flex-direction: column; gap: 8px; align-items: stretch; }
  #searchForm label { min-width: 0; width: 100%; }
  #searchForm button { width: 100%; margin-top: 0; height: 40px; }
  input { font-size: 15px; padding: 10px 12px; } /* prevent iOS zoom */
  .badge { padding: 6px 10px; }
  .actions .caret { padding: 6px 8px; }
  .tile { padding: 12px; }
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
}

/* Extra-compact phones */
@media (max-width: 480px) {
  .topbar { padding: 6px 8px; }
  .logo { height: 24px; }
  .container { margin: 10px auto; padding: 0 8px; }
  .card { padding: 8px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08); }
  #searchForm { gap: 6px; }
  input { padding: 8px 10px; font-size: 14px; }
  button { padding: 8px 12px; font-size: 14px; border-radius: 9px; }
  #searchForm button { height: 36px; }
  .badge { padding: 5px 8px; font-size: 12px; }
  .actions .caret { padding: 5px 7px; }
  .tile { padding: 10px; border-radius: 10px; }
  h1 { font-size: 20px; }
  h2 { font-size: 16px; }
  .msg { font-size: 12px; }
  .placeholder { padding: 12px; }
}

/* Ultra-compact phones */
@media (max-width: 400px) {
  .topbar { padding: 4px 6px; }
  .logo { height: 20px; }
  .brand { font-size: 12px; }
  .container { margin: 8px auto; padding: 0 6px; }
  .card { padding: 6px; border-radius: 9px; box-shadow: 0 2px 6px rgba(0,0,0,.06); }
  .grid { gap: 8px; }
  #searchForm { gap: 6px; }
  input { padding: 8px 10px; font-size: 14px; }
  button { padding: 7px 10px; font-size: 13px; border-radius: 8px; }
  #searchForm button { height: 34px; }
  .badge { padding: 4px 8px; font-size: 11px; }
  .actions .caret { padding: 4px 6px; font-size: 13px; }
  .tile { padding: 8px; }
  h1 { font-size: 18px; }
  h2 { font-size: 15px; }
}

@media (max-width: 340px) {
  .logo { height: 18px; }
  .brand { font-size: 11px; }
  #searchForm button { height: 32px; }
  button { padding: 6px 9px; font-size: 12px; }
  .badge { padding: 4px 7px; font-size: 10px; }
  h1 { font-size: 16px; }
  h2 { font-size: 14px; }
}

/* Ultra-small devices (very compact) */
@media (max-width: 320px) {
  .topbar { padding: 3px 5px; }
  .logo { height: 16px; }
  .container { margin: 6px auto; padding: 0 5px; }
  .card { padding: 4px; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,.05); }
  #searchForm { gap: 5px; }
  input { padding: 7px 9px; font-size: 13px; }
  button { padding: 6px 9px; font-size: 12px; border-radius: 7px; }
  #searchForm button { height: 30px; }
  .badge { padding: 3px 6px; font-size: 10px; }
  .actions .caret { padding: 3px 5px; font-size: 12px; }
  .tile { padding: 6px; }
  h1 { font-size: 14px; }
  h2 { font-size: 13px; }
  .msg { font-size: 11px; }
  .placeholder { padding: 10px; border-radius: 8px; }
}

/* Extra overrides: make cards even smaller on small screens */
@media (max-width: 640px) {
  .container { max-width: 540px; margin: 8px auto; padding: 0 8px; }
  .card { padding: 8px; border-radius: 8px; }
  .grid { grid-template-columns: 1fr; gap: 8px; }
  .tile { padding: 8px; }
  body { font-size: 14px; }
  h1 { font-size: 20px; }
  h2 { font-size: 17px; }
  .tile-title { font-size: 16px; }
  .tile-sub { font-size: 13px; color: #6b7280; }
  .btn-sec { padding: 8px 10px; font-size: 13px; }
}
@media (max-width: 480px) {
  .container { padding: 0 6px; }
  .card { padding: 6px; border-radius: 8px; }
  .tile { padding: 8px; border-radius: 8px; }
  body { font-size: 13px; }
  h1 { font-size: 18px; }
  h2 { font-size: 16px; }
  .tile-title { font-size: 15px; }
  .tile-sub { font-size: 12.5px; }
  .btn-sec { padding: 7px 9px; font-size: 12.5px; }
}
@media (max-width: 400px) {
  .card { padding: 5px; margin: 6px 0; }
  .tile { padding: 6px; }
  body { font-size: 12.5px; }
  h1 { font-size: 16px; }
  h2 { font-size: 14.5px; }
  .tile-title { font-size: 14px; }
  .tile-sub { font-size: 12px; }
}
@media (max-width: 340px) {
  .container { padding: 0 4px; }
  .card { padding: 4px; border-radius: 8px; margin: 6px 0; }
  body { font-size: 12px; }
  h1 { font-size: 15px; }
  h2 { font-size: 13.5px; }
  .tile-title { font-size: 13.5px; }
  .tile-sub { font-size: 11.5px; }
}
@media (max-width: 320px) {
  .grid { gap: 6px; }
  .card { padding: 3px; border-radius: 7px; margin: 4px 0; }
  body { font-size: 11.5px; }
  h1 { font-size: 14px; }
  h2 { font-size: 13px; }
  .tile-title { font-size: 13px; }
  .tile-sub { font-size: 11px; }
}

/* Final compact pass for extra-small screens */
@media (max-width: 360px) {
  .topbar { padding: 2px 4px !important; }
  .logo { height: 14px !important; }
  .container { margin: 4px auto !important; padding: 0 4px !important; }
  .card { padding: 2px !important; border-radius: 6px !important; }
  .grid { gap: 6px !important; }
  .tile { padding: 6px !important; border-radius: 8px !important; }
  input { padding: 6px 8px !important; font-size: 12px !important; }
  button { padding: 6px 8px !important; font-size: 11.5px !important; border-radius: 7px !important; }
  #searchForm button { height: 28px !important; }
  .badge { padding: 3px 6px !important; font-size: 10px !important; }
  .actions .caret { padding: 3px 5px !important; font-size: 12px !important; }
  h1 { font-size: 13px !important; }
  h2 { font-size: 12px !important; }
  .msg { font-size: 11px !important; }
.placeholder { padding: 10px !important; border-radius: 8px !important; }
}

/* Mobile card overflow quick-fix: add safe padding and clip */
@media (max-width: 480px) {
  .card { padding: 10px !important; border-radius: 12px !important; overflow: hidden; margin: 6px 0 !important; }
  .container { padding: 0 10px !important; }
  #searchForm { gap: 10px !important; }
  #searchForm button { width: 100% !important; height: 44px !important; }
  #searchForm label { width: 100%; }
  input { width: 100%; box-sizing: border-box; }
}
@media (max-width: 360px) {
  .card { padding: 8px !important; border-radius: 10px !important; margin: 6px 0 !important; }
  .container { padding: 0 8px !important; }
}

/* Ultra-compact final tuning (aggressive) */
@media (max-width: 480px) {
  .container { max-width: 420px !important; }
  .card { padding: 8px !important; border-radius: 10px !important; box-shadow: 0 1px 4px rgba(0,0,0,.05) !important; }
  .topbar .brand { font-size: 14px !important; }
}
@media (max-width: 400px) {
  .container { max-width: 360px !important; }
  .card { padding: 6px !important; border-radius: 8px !important; box-shadow: 0 1px 3px rgba(0,0,0,.04) !important; }
  #searchForm button { height: 32px !important; }
}
@media (max-width: 340px) {
  .container { max-width: 320px !important; padding: 0 4px !important; }
  .card { padding: 4px !important; border-radius: 7px !important; }
  .topbar .brand { font-size: 12px !important; }
}
@media (max-width: 320px) {
  .card { padding: 2px !important; border-radius: 6px !important; }
  .badge { padding: 2px 5px !important; font-size: 9.5px !important; }
  .actions .caret { padding: 2px 4px !important; }
}

/* Phone look refinement (tiles + heading) */
@media (max-width: 414px) {
  .topbar { padding: 6px 8px !important; }
  .logo { height: 18px !important; }
  .container { padding: 0 8px !important; }
  h2 { margin: 10px 0 12px !important; font-size: 16px !important; }
  .grid { gap: 8px !important; }
  .tile { padding: 10px !important; border-radius: 10px !important; box-shadow: 0 1px 3px rgba(0,0,0,.06) !important; border: 1px solid #e5e7eb !important; }
  .tile:hover { transform: none !important; }
  .tile-title { font-size: 15px !important; }
  .tile-sub { font-size: 12.5px !important; color: #6b7280 !important; }
  .actions { gap: 4px !important; }
  .badge { padding: 4px 8px !important; font-size: 11px !important; }
  .caret { padding: 4px 6px !important; font-size: 12px !important; }
}

/* Progress bar for tile status */
.progress { margin-top: 10px; height: 8px; background: #eef2ff; border-radius: 999px; overflow: hidden; border: 1px solid #e5e7eb; }
.progress > .bar { height: 100%; background: #cd1627; width: 0%; }
.progress-label { margin-top: 6px; font-size: 12px; color: #6b7280; }