/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
button, a { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }

/* ── Light Theme (default) ── */
:root {
  --bg: #f0f7ff;
  --bg2: #e4f0fb;
  --surface: #ffffff;
  --surface2: #f7fbff;
  --border: #dbeafe;
  --border2: #bfdbfe;
  --text: #0f172a;
  --text2: #475569;
  --text3: #94a3b8;
  --accent: #3b82f6;
  --accent2: #06b6d4;
  --accent-hover: #2563eb;
  --accent-dim: rgba(59,130,246,0.1);
  --shadow: 0 1px 3px rgba(15,23,42,0.06), 0 4px 16px rgba(15,23,42,0.06);
  --shadow-hover: 0 4px 12px rgba(59,130,246,0.15), 0 8px 32px rgba(15,23,42,0.08);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 7px;
  --header-bg: rgba(240,247,255,0.85);
  --gradient: linear-gradient(135deg, #dbeafe 0%, #eff6ff 40%, #ecfeff 100%);
  --danger: #ef4444;
  --success: #10b981;
  --grid-color: rgba(59,130,246,0.06);
}

/* ── Dark Theme ── */
[data-theme="dark"] {
  --bg: #0d1117;
  --bg2: #161b22;
  --surface: #1c2333;
  --surface2: #21262d;
  --border: #30363d;
  --border2: #3d444d;
  --text: #f0f6fc;
  --text2: #8b949e;
  --text3: #6e7681;
  --accent: #58a6ff;
  --accent2: #22d3ee;
  --accent-hover: #79b8ff;
  --accent-dim: rgba(88,166,255,0.12);
  --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.2);
  --shadow-hover: 0 4px 12px rgba(88,166,255,0.2), 0 8px 32px rgba(0,0,0,0.3);
  --header-bg: rgba(13,17,23,0.9);
  --gradient: linear-gradient(135deg, #0d1117 0%, #0f172a 50%, #0c1a1a 100%);
  --grid-color: rgba(88,166,255,0.04);
  --danger: #ff7b7b;
  --success: #3fb950;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.3s, color 0.3s;
}

#view-landing {
  display: flex;
  flex-direction: column;
  flex: 1;
}

#view-tool {
  flex: 1;
}

/* ── Header ── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, border-color 0.3s;
}
.header-inner {
  max-width: 1100px; margin: 0 auto; padding: 0 24px;
  height: 62px; display: flex; align-items: center; gap: 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 800; color: var(--text);
  text-decoration: none; letter-spacing: -0.4px; flex-shrink: 0;
  transition: opacity 0.2s;
}
.logo:hover { opacity: 0.8; }
.main-nav { display: flex; gap: 4px; flex: 1; }
.nav-link {
  padding: 6px 14px; border-radius: 8px;
  color: var(--text2); font-size: 13.5px; font-weight: 500;
  text-decoration: none; transition: all 0.2s;
}
.nav-link:hover { color: var(--text); background: var(--surface); }

.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* Language Toggle */
.lang-toggle {
  display: flex; align-items: center;
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: 50px; padding: 3px; gap: 2px;
}
.lang-btn {
  padding: 4px 11px; border-radius: 50px; border: none;
  background: transparent; color: var(--text2);
  font-size: 12px; font-weight: 700; cursor: pointer;
  transition: all 0.2s; letter-spacing: 0.3px;
}
.lang-btn.active {
  background: var(--accent); color: #fff;
}
.lang-btn:not(.active):hover { background: var(--bg2); color: var(--text); }

/* Theme Toggle */
.theme-btn {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border2); background: var(--surface);
  color: var(--text2); cursor: pointer; display: flex;
  align-items: center; justify-content: center; transition: all 0.2s;
}
.theme-btn:hover { border-color: var(--accent); color: var(--accent); }
[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }

/* ── Landing ── */
#view-landing { animation: fadeUp 0.4s ease; }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background: var(--gradient);
  padding: 80px 24px 60px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.hero-bg-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 44px 44px;
}
.hero-decoration {
  position: absolute; right: 60px; bottom: -20px; pointer-events: none;
  opacity: 0.5;
}
@media (max-width: 700px) { .hero-decoration { display: none; } }

.hero-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: 50px; padding: 6px 14px;
  font-size: 12.5px; font-weight: 600; color: var(--accent);
  margin-bottom: 24px; box-shadow: var(--shadow);
}
.badge-dot { font-size: 10px; }

.hero-title {
  font-size: clamp(38px, 6vw, 58px);
  font-weight: 900; letter-spacing: -2px; line-height: 1.05;
  color: var(--text); margin-bottom: 18px;
}
.hero-title-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 16px; color: var(--text2); max-width: 480px;
  margin: 0 auto; line-height: 1.7;
}

/* Tools Grid */
.tools-section { max-width: 1100px; margin: 0 auto; padding: 48px 24px 64px; flex: 1; width: 100%; }

.group-header {
  display: flex; align-items: center; gap: 14px; margin-bottom: 16px;
}
.group-label-inner {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: var(--text2);
  white-space: nowrap; text-transform: uppercase; letter-spacing: 0.6px;
}
.group-line {
  flex: 1; height: 1px; background: var(--border);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 8px;
  width: 100%;
}

.tool-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  display: flex; align-items: flex-start; gap: 14px;
  cursor: pointer; transition: all 0.22s; box-shadow: var(--shadow);
}
.tool-card:hover {
  border-color: var(--border2); box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.tool-icon {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--ic1), var(--ic2));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--ic1) 40%, transparent);
}

.tool-info { flex: 1; min-width: 0; }
.tool-name { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.tool-desc { font-size: 12.5px; color: var(--text2); line-height: 1.55; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

/* Footer */
/* SEO / GEO content: giới thiệu + FAQ */
.seo-section { border-top: 1px solid var(--border); background: var(--surface2); }
.seo-inner { max-width: 820px; margin: 0 auto; padding: 56px 24px; }
.seo-inner h2 { font-size: 1.5rem; color: var(--text); margin: 0 0 14px; }
.seo-inner > p { color: var(--text2); font-size: 0.98rem; line-height: 1.7; margin: 0 0 14px; }
.seo-faq-title { margin-top: 40px !important; }
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); padding: 2px 18px;
}
.faq-item summary {
  cursor: pointer; list-style: none; padding: 16px 0;
  font-weight: 600; color: var(--text); font-size: 0.98rem;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: var(--accent); font-size: 1.4rem; font-weight: 400; line-height: 1; flex-shrink: 0; }
.faq-item[open] summary::after { content: '−'; }
.faq-item > p { color: var(--text2); font-size: 0.94rem; line-height: 1.65; margin: 0 0 16px; }

.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-inner {
  max-width: 1100px; margin: 0 auto; padding: 24px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; color: var(--text2); font-size: 13px; }
.footer-copy { color: var(--text3); font-size: 12.5px; }
.footer-link { color: var(--text2); font-size: 12.5px; text-decoration: none; margin-right: 16px; }
.footer-link:hover { color: var(--accent); }

/* ── Landing pages (trang phụ SEO) — dùng chung token & theme với trang chủ ── */
.lp-main { max-width: 820px; margin: 0 auto; padding: 0 20px; }
.lp-hero { text-align: center; padding: 56px 0 40px; }
.lp-hero h1 { font-size: 2.1rem; line-height: 1.2; margin-bottom: 16px; color: var(--text); }
.lp-hero p { color: var(--text2); font-size: 1.08rem; max-width: 640px; margin: 0 auto 26px; }
.lp-section { padding-bottom: 8px; }
.lp-section h2 { font-size: 1.5rem; margin: 44px 0 16px; color: var(--text); }
.lp-section p { color: var(--text2); margin-bottom: 14px; }
.lp-btn { display: inline-block; background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; padding: 12px 24px; border-radius: var(--radius); font-weight: 600; text-decoration: none; transition: opacity .2s; }
.lp-btn:hover { opacity: .9; }
.lp-steps { list-style: none; counter-reset: s; display: grid; gap: 14px; margin: 18px 0; padding: 0; }
.lp-steps li { counter-increment: s; position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px 18px 62px; box-shadow: var(--shadow); color: var(--text2); }
.lp-steps li::before { content: counter(s); position: absolute; left: 16px; top: 16px; width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.lp-steps strong { display: block; color: var(--text); margin-bottom: 3px; }
.lp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 18px 0; }
.lp-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); color: var(--text2); }
.lp-card strong { color: var(--text); }
.lp-faq { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 2px 18px; margin-bottom: 10px; }
.lp-faq summary { cursor: pointer; list-style: none; padding: 15px 0; font-weight: 600; color: var(--text); display: flex; justify-content: space-between; gap: 12px; }
.lp-faq summary::-webkit-details-marker { display: none; }
.lp-faq summary::after { content: '+'; color: var(--accent); font-size: 1.4rem; line-height: 1; }
.lp-faq[open] summary::after { content: '−'; }
.lp-faq p { color: var(--text2); margin: 0 0 15px; }
.lp-note { background: var(--surface2); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 10px; padding: 14px 18px; margin: 16px 0; color: var(--text2); }
.lp-cta { text-align: center; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 20px; margin: 40px 0; }
.lp-cta h2 { margin: 0 0 10px; color: var(--text); font-size: 1.5rem; }
.lp-cta p { color: var(--text2); margin-bottom: 18px; }
@media (max-width: 560px) { .lp-hero h1 { font-size: 1.7rem; } .lp-grid { grid-template-columns: 1fr; } }

/* ── Tool View ── */
#view-tool { animation: fadeUp 0.35s ease; }

.breadcrumb-bar {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.breadcrumb-inner {
  max-width: 1100px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 10px;
}
.back-btn {
  display: flex; align-items: center; gap: 6px;
  background: none; border: none; color: var(--text2);
  font-size: 13.5px; font-weight: 500; cursor: pointer;
  padding: 4px 10px; border-radius: 7px; transition: all 0.2s;
}
.back-btn:hover { background: var(--bg2); color: var(--text); }
.breadcrumb-sep { color: var(--text3); }
.breadcrumb-current { font-size: 13.5px; font-weight: 600; color: var(--text); }

.tool-page { max-width: 1100px; margin: 0 auto; padding: 32px 24px 64px; }
.tool-section { display: flex; flex-direction: column; gap: 28px; }

.tool-header { text-align: center; }
.tool-header h2 { font-size: 24px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 6px; }
.tool-header p { color: var(--text2); font-size: 14px; }

/* Type Tabs */
.type-tabs-wrap { overflow-x: auto; scrollbar-width: none; }
.type-tabs-wrap::-webkit-scrollbar { display: none; }
.type-tabs {
  display: flex; gap: 6px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 50px; padding: 5px;
  width: max-content; min-width: 100%; justify-content: center;
  box-shadow: var(--shadow);
}
.tab-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 50px; border: none;
  background: transparent; color: var(--text2);
  font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all 0.2s; white-space: nowrap;
}
.tab-btn:hover { color: var(--text); background: var(--bg2); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; box-shadow: 0 2px 8px rgba(59,130,246,0.35);
}

/* Content Grid */
.content-grid {
  display: grid; grid-template-columns: 1fr 360px;
  gap: 24px; align-items: start;
}
@media (max-width: 900px) { .content-grid { grid-template-columns: 1fr; } .preview-panel { position: relative; top: auto; } }

/* Form Panel */
.form-panel { display: flex; flex-direction: column; gap: 16px; }
.input-pane { display: none; flex-direction: column; gap: 14px; }
.input-pane.active { display: flex; }

/* Form Elements */
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }

input[type="text"], input[type="url"], input[type="email"], input[type="tel"],
input[type="password"], input[type="datetime-local"], select, textarea {
  width: 100%; background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-size: 14px;
  padding: 10px 14px; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit; box-shadow: var(--shadow); min-height: 44px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
input::placeholder, textarea::placeholder { color: var(--text3); }
textarea { resize: vertical; min-height: 90px; }
select {
  cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px;
}
input[type="datetime-local"] { color-scheme: light; }
[data-theme="dark"] input[type="datetime-local"] { color-scheme: dark; }

/* Password toggle */
.input-with-toggle { position: relative; }
.input-with-toggle input { padding-right: 44px; }
.eye-toggle {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--text3); cursor: pointer;
  padding: 4px; display: flex; align-items: center; transition: color 0.2s;
}
.eye-toggle:hover { color: var(--accent); }

/* Checkbox */
.checkbox-group { flex-direction: row; align-items: center; }
.checkbox-label { display: flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.checkbox-label input[type="checkbox"] { display: none; }
.checkbox-custom {
  width: 18px; height: 18px; border: 2px solid var(--border2); border-radius: 5px;
  background: var(--surface); transition: all 0.2s; flex-shrink: 0; position: relative;
}
.checkbox-label input:checked + .checkbox-custom { background: var(--accent); border-color: var(--accent); }
.checkbox-label input:checked + .checkbox-custom::after {
  content: ''; position: absolute; left: 4px; top: 1px;
  width: 6px; height: 10px; border: 2px solid white;
  border-top: none; border-left: none; transform: rotate(45deg);
}

/* Customization */
.customization-panel { display: flex; flex-direction: column; gap: 10px; }
.cust-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 2px;
}
.cust-card {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: var(--shadow);
}
.cust-card-title { font-size: 12.5px; font-weight: 700; color: var(--text); }

/* Color Mode Toggle */
.color-mode-toggle {
  display: flex; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 50px; padding: 4px; gap: 4px;
}
.toggle-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 7px 12px; border-radius: 50px; border: none;
  background: transparent; color: var(--text2); font-size: 12.5px;
  font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.toggle-btn.active {
  background: var(--surface); color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}
.toggle-btn.locked { cursor: pointer; opacity: 0.45; }
.toggle-btn:not(.active):not(.locked):hover { background: var(--bg); color: var(--text); }

/* Colors Row */
.colors-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.color-field { display: flex; flex-direction: column; gap: 6px; }
.color-field label { font-size: 11.5px; color: var(--text2); font-weight: 600; }
.color-input-wrap {
  display: flex; align-items: center;
  background: var(--bg2); border: 1.5px solid var(--border);
  border-radius: var(--radius-xs); overflow: hidden;
}
.color-input-wrap input[type="text"] {
  border: none; background: transparent; border-radius: 0;
  padding: 8px 10px; font-size: 12px; font-family: monospace;
  flex: 1; min-width: 0; box-shadow: none;
}
.color-input-wrap input[type="text"]:focus { box-shadow: none; }
.color-swatch-wrap { position: relative; width: 34px; height: 34px; flex-shrink: 0; }
.color-swatch-wrap input[type="color"] {
  position: absolute; inset: 0; opacity: 0;
  width: 100%; height: 100%; cursor: pointer; border: none; padding: 0;
}
.color-swatch { width: 100%; height: 100%; border-left: 1px solid var(--border); pointer-events: none; }

/* Logo Upload */
.logo-upload-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.upload-btn {
  padding: 7px 14px; background: var(--bg2); border: 1.5px solid var(--border2);
  border-radius: 50px; color: var(--text); font-size: 12.5px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; flex-shrink: 0;
}
.upload-btn:hover { background: var(--surface2); border-color: var(--accent); }
.upload-btn.locked { opacity: 0.5; cursor: pointer; }
#logo-file { display: none; }
.logo-filename {
  font-size: 12px; color: var(--text2); font-family: monospace;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 120px;
}
.logo-clear-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--bg2); color: var(--text3); font-size: 12px; cursor: pointer;
  flex-shrink: 0; line-height: 1; transition: all 0.15s;
}
.logo-clear-btn:hover { background: rgba(239,68,68,0.1); border-color: var(--danger); color: var(--danger); }
.locked-notice { display: flex; align-items: center; gap: 5px; color: var(--text3); font-size: 12px; }

/* Design Options */
.design-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.design-btn {
  display: flex; align-items: center; justify-content: center; gap: 5px;
  padding: 9px; border-radius: var(--radius-xs);
  border: 1.5px solid var(--border); background: var(--bg2);
  color: var(--text2); font-size: 12px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.design-btn.locked { opacity: 0.5; }
.design-btn:not(.locked):hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.design-btn.active { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* Generate Button */
.generate-btn {
  width: 100%; padding: 13px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; border-radius: var(--radius);
  font-size: 15px; font-weight: 700; cursor: pointer;
  transition: all 0.2s; letter-spacing: 0.2px;
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}
.generate-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(59,130,246,0.4); }
.generate-btn:active { transform: translateY(0); }

/* Preview Panel */
.preview-panel {
  position: sticky; top: 80px;
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column; align-items: center;
  min-height: 280px; justify-content: center; box-shadow: var(--shadow);
}
.preview-placeholder {
  display: flex; flex-direction: column; align-items: center;
  gap: 14px; text-align: center; color: var(--text2);
}
.placeholder-icon { color: var(--text); opacity: 0.3; }
.preview-placeholder p { font-size: 13.5px; line-height: 1.7; }
.preview-placeholder strong { color: var(--accent); font-weight: 700; }

.qr-result { display: flex; flex-direction: column; align-items: center; gap: 16px; width: 100%; animation: fadeUp 0.3s ease; }
.qr-demo-notice {
  display: flex; align-items: center; gap: 6px; width: 100%;
  padding: 8px 12px; border-radius: var(--radius-sm);
  background: rgba(59,130,246,0.07); border: 1px dashed rgba(59,130,246,0.35);
  font-size: 12.5px; color: var(--text2); justify-content: center;
}
.qr-demo-notice svg { flex-shrink: 0; color: var(--accent); }
.qr-demo-notice strong { color: var(--text); font-weight: 600; }
.qr-canvas-wrap {
  background: #fff; border-radius: var(--radius-sm); padding: 14px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}
.qr-canvas-wrap canvas { display: block; }

.qr-actions { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; width: 100%; }
.action-btn {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 10px; border-radius: var(--radius-xs);
  border: 1.5px solid var(--border); background: var(--surface2);
  color: var(--text); font-size: 12.5px; font-weight: 600; cursor: pointer;
  transition: all 0.2s;
}
.action-btn:hover { border-color: var(--border2); background: var(--bg2); }
.action-btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border-color: transparent;
  box-shadow: 0 2px 8px rgba(59,130,246,0.3);
}
.action-btn.primary:hover { box-shadow: 0 4px 16px rgba(59,130,246,0.4); }

.qr-info {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding-top: 10px; border-top: 1px solid var(--border);
}
.type-badge {
  background: var(--accent-dim); color: var(--accent);
  font-size: 10px; font-weight: 800; letter-spacing: 1px;
  padding: 3px 8px; border-radius: 4px; white-space: nowrap;
}
.data-preview {
  color: var(--text3); font-size: 11px; font-family: monospace;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1;
}

/* ── Short URL ── */
.shorturl-grid {
  display: grid; grid-template-columns: 1fr 280px;
  gap: 24px; align-items: start;
}
@media (max-width: 860px) { .shorturl-grid { grid-template-columns: 1fr; } }

.shorturl-main { display: flex; flex-direction: column; gap: 16px; }
.shorturl-card {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 16px;
}

.url-input-row { display: flex; gap: 10px; }
.url-input-row input { flex: 1; }
.shorten-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 700; cursor: pointer; white-space: nowrap;
  transition: all 0.2s; box-shadow: 0 2px 10px rgba(59,130,246,0.3);
}
.shorten-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(59,130,246,0.4); }

.shorturl-result {
  background: var(--bg2); border: 1.5px solid var(--border2);
  border-radius: var(--radius-sm); padding: 16px;
  display: flex; flex-direction: column; gap: 12px; animation: fadeUp 0.3s ease;
}
.result-label { font-size: 11.5px; color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }

.short-link-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.short-link-display { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.short-link-display a {
  color: var(--accent); text-decoration: none; font-size: 15px; font-weight: 700;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.short-link-display a:hover { text-decoration: underline; }
.short-link-actions { display: flex; gap: 6px; flex-shrink: 0; }
.icon-btn {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-xs); color: var(--text2); cursor: pointer; transition: all 0.2s;
}
.icon-btn:hover { background: var(--bg); border-color: var(--accent); color: var(--accent); }

.original-url-preview { display: flex; gap: 8px; align-items: baseline; font-size: 12px; color: var(--text3); overflow: hidden; }
.orig-label { color: var(--text2); font-weight: 600; white-space: nowrap; }
#original-url-display { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; font-family: monospace; }

/* History */
.history-panel {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.history-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.history-header h3 { font-size: 13.5px; font-weight: 700; }
.clear-btn {
  background: none; border: none; color: var(--danger);
  font-size: 12px; font-weight: 600; cursor: pointer;
  padding: 4px 8px; border-radius: 5px; transition: all 0.2s;
}
.clear-btn:hover { background: rgba(239,68,68,0.08); }
.history-list { display: flex; flex-direction: column; }
.history-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 20px;
  border-bottom: 1px solid var(--border); transition: background 0.15s;
}
.history-item:last-child { border-bottom: none; }
.history-item:hover { background: var(--surface2); }
.history-item-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.history-short { color: var(--accent); font-size: 13px; font-weight: 700; text-decoration: none; }
.history-short:hover { text-decoration: underline; }
.history-original { color: var(--text3); font-size: 11px; font-family: monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-time { color: var(--text3); font-size: 11px; white-space: nowrap; }
.history-copy {
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--text2); border-radius: 5px;
  padding: 4px 10px; font-size: 11px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.history-copy:hover { border-color: var(--accent); color: var(--accent); }

/* Info Cards (Short URL) */
.shorturl-info { display: flex; flex-direction: column; gap: 12px; }
.info-card {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 18px;
  display: flex; flex-direction: column; gap: 8px; box-shadow: var(--shadow);
}
.info-icon-wrap {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--ic1), var(--ic2));
  display: flex; align-items: center; justify-content: center;
}
.info-card h4 { font-size: 13.5px; font-weight: 700; }
.info-card p { color: var(--text2); font-size: 12.5px; line-height: 1.6; }
.stats-card { align-items: center; text-align: center; padding: 24px; }
.stat-number { font-size: 42px; font-weight: 900; color: var(--accent); line-height: 1; letter-spacing: -2px; }
.stat-label { font-size: 12px; color: var(--text2); font-weight: 600; }

/* ── Toast ── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: var(--text); color: var(--bg);
  padding: 11px 20px; border-radius: 50px; font-size: 13px; font-weight: 600;
  z-index: 9999; transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s;
  opacity: 0; pointer-events: none; white-space: nowrap;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ── Support Page ── */
.support-page { max-width: 640px; margin: 0 auto; padding: 40px 20px 60px; }
.support-header { text-align: center; margin-bottom: 32px; }
.support-header h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 6px; }
.support-header p { color: var(--text2); font-size: 0.95rem; }

.support-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 28px; margin-bottom: 20px;
}
.support-card h2 { font-size: 1.15rem; font-weight: 600; margin: 0 0 8px; }
.support-card p { color: var(--text2); font-size: 0.93rem; line-height: 1.6; margin: 0; }
.support-card-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; color: white;
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
}
.support-card-icon.contact-icon { background: linear-gradient(135deg, #10b981, #06b6d4); }
.support-card-icon.donate-icon { background: linear-gradient(135deg, #f43f5e, #ec4899); }

.contact-links { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.contact-item-email {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 10px;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); font-size: 0.93rem;
  transition: border-color 0.2s;
}
.contact-item-email:hover { border-color: var(--accent); }
.contact-item-email svg { flex-shrink: 0; color: var(--text2); }
.contact-email-text { flex: 1; min-width: 0; }

.bank-info { margin-top: 20px; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.bank-info-header {
  padding: 12px 16px; font-weight: 600; font-size: 0.9rem;
  background: linear-gradient(135deg, #3b82f6, #06b6d4); color: white;
}
.bank-details { padding: 0 16px; }
.bank-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-bottom: 1px solid var(--border);
  font-size: 0.93rem;
}
.bank-row:last-child { border-bottom: none; }
.bank-label { color: var(--text2); }
.bank-value { font-weight: 600; }
.bank-account-no { display: flex; align-items: center; gap: 8px; }
.bank-account-no code { font-family: 'SF Mono', monospace; font-size: 0.95rem; letter-spacing: 0.5px; }
.copy-bank-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  padding: 4px 6px; cursor: pointer; color: var(--text2);
  transition: color 0.2s, border-color 0.2s;
}
.copy-bank-btn:hover { color: var(--accent); border-color: var(--accent); }
.bank-qr { padding: 20px 16px; text-align: center; }
.bank-qr p { margin-bottom: 16px; }
.bank-qr-img {
  max-width: 240px; width: 100%; border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.support-thank {
  margin-top: 20px; padding: 16px; border-radius: 10px;
  background: var(--bg); text-align: center; font-size: 0.88rem;
  color: var(--text2); font-style: italic;
}

.nav-support { color: var(--accent) !important; font-weight: 600; }

/* Contact email copy */
.copy-email-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  padding: 4px 6px; cursor: pointer; color: var(--text2);
  transition: color 0.2s, border-color 0.2s; flex-shrink: 0;
}
.copy-email-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ── Guest Limit Popup ── */
.guest-limit-box {
  max-width: 380px; text-align: center; padding: 36px 28px 28px;
}
.guest-limit-icon {
  width: 60px; height: 60px; border-radius: 50%; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(59,130,246,0.3);
}
.guest-limit-title {
  font-size: 1.2rem; font-weight: 700; color: var(--text); margin: 0 0 8px;
}
.guest-limit-desc {
  color: var(--text2); font-size: 0.9rem; line-height: 1.6; margin: 0 0 24px;
}
.guest-limit-actions {
  display: flex; flex-direction: column; gap: 10px;
}
.guest-limit-login {
  width: 100%; padding: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 700; cursor: pointer;
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
  transition: all 0.2s;
}
.guest-limit-login:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(59,130,246,0.4); }
.guest-limit-later {
  width: 100%; padding: 10px;
  background: transparent; border: 1.5px solid var(--border2);
  border-radius: var(--radius-sm); color: var(--text2);
  font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all 0.2s;
}
.guest-limit-later:hover { background: var(--bg2); border-color: var(--text3); color: var(--text); }

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Mobile ── */
@media (max-width: 900px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .header-inner { padding: 0 10px; gap: 6px; height: 52px; }
  .logo span { font-size: 15px; }
  .logo svg { width: 26px; height: 26px; }
  .main-nav { gap: 0; }
  .nav-link { padding: 4px 6px; font-size: 11.5px; }
  .header-actions { gap: 6px; }
  .lang-btn { padding: 3px 8px; font-size: 11px; }
  .theme-btn { display: none; }
  .user-btn { width: 32px; height: 32px; }
  .hero { padding: 52px 20px 44px; }
  .tools-section { padding: 32px 16px 48px; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .tool-page { padding: 24px 16px 48px; }
  .url-input-row { flex-direction: column; }
  .shorten-btn { width: 100%; justify-content: center; }
}

/* ── Auth Benefit Hint & Guest ── */
.auth-benefit-hint {
  background: linear-gradient(135deg, rgba(59,130,246,0.07), rgba(6,182,212,0.07));
  border: 1px solid rgba(59,130,246,0.18);
  border-radius: var(--radius-sm); padding: 12px 14px;
  display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px;
}
.auth-benefit-row {
  display: flex; align-items: center; gap: 9px;
  font-size: 12.5px; color: var(--text2); font-weight: 500;
}
.auth-benefit-icon { font-size: 14px; flex-shrink: 0; }
.auth-divider {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--text3); margin: 2px 0;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.password-wrap { position: relative; display: flex; }
.password-wrap input { flex: 1; padding-right: 40px; }
.pw-toggle { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; font-size: 16px; color: var(--text2); padding: 0; line-height: 1; opacity: 0.6; }
.pw-toggle:hover { opacity: 1; }
.forgot-link { color: var(--accent); font-size: 13px; text-decoration: none; }
.forgot-link:hover { text-decoration: underline; }
.guest-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 10px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border2); background: var(--bg2);
  color: var(--text2); font-size: 13px; font-weight: 600; cursor: pointer;
  transition: all 0.2s;
}
.guest-btn:hover { background: var(--bg); border-color: var(--accent); color: var(--text); }
.guest-note {
  text-align: center; font-size: 11.5px; color: var(--text3);
  margin-top: -2px; line-height: 1.4;
}

/* ── User Button & Dropdown ── */
.user-area { position: relative; }
.user-btn {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1.5px solid var(--border2); background: var(--surface);
  color: var(--text2); cursor: pointer; display: flex;
  align-items: center; justify-content: center; transition: all 0.2s;
}
.user-btn:hover { border-color: var(--accent); color: var(--accent); }
.user-btn.logged-in {
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  border-color: transparent; color: #fff; font-weight: 700; font-size: 12px;
}
.user-dropdown {
  position: absolute; right: 0; top: calc(100% + 10px);
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 8px; min-width: 220px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15); z-index: 200;
  animation: fadeUp 0.2s ease;
}
.dropdown-user-info { display: flex; align-items: center; gap: 10px; padding: 8px 8px 12px; }
.dropdown-avatar {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff; font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.dropdown-name { font-size: 13px; font-weight: 700; color: var(--text); }
.dropdown-email { font-size: 11px; color: var(--text3); margin-top: 1px; }
.dropdown-divider { height: 1px; background: var(--border); margin: 4px 0; }
.dropdown-item {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 9px 10px; border-radius: var(--radius-xs); border: none;
  background: transparent; color: var(--text2); font-size: 13px;
  font-weight: 500; cursor: pointer; text-align: left; transition: all 0.15s;
}
.dropdown-item:hover { background: var(--bg2); color: var(--text); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background: rgba(239,68,68,0.08); }

/* ── Auth Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  animation: fadeIn 0.2s ease;
}
.modal-overlay.hidden { display: none !important; }
.modal-box {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: 18px; padding: 32px; width: 100%; max-width: 420px;
  position: relative; box-shadow: 0 24px 64px rgba(0,0,0,0.25);
  animation: fadeUp 0.25s ease;
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 50%;
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  color: var(--text2); cursor: pointer; transition: all 0.2s;
}
.modal-close:hover { background: var(--border); color: var(--text); }
.modal-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: var(--text); margin-bottom: 24px; }
.modal-tabs {
  display: flex; gap: 4px; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 50px; padding: 4px; margin-bottom: 24px;
}
.modal-tab {
  flex: 1; padding: 8px; border-radius: 50px; border: none;
  background: transparent; color: var(--text2); font-size: 13px;
  font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.modal-tab.active { background: var(--surface); color: var(--text); box-shadow: 0 1px 4px rgba(0,0,0,0.1); }
.auth-pane { display: none; flex-direction: column; gap: 14px; }
.auth-pane.active { display: flex; }
.auth-error { font-size: 12.5px; color: var(--danger); }
.auth-error:not(:empty) { padding: 8px 12px; background: rgba(239,68,68,0.08); border-radius: 7px; }
.auth-submit-btn {
  width: 100%; padding: 12px;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 700; cursor: pointer; transition: all 0.2s;
  margin-top: 4px; box-shadow: 0 4px 16px rgba(99,102,241,0.3);
}
.auth-submit-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(99,102,241,0.4); }
.auth-switch { text-align: center; font-size: 13px; color: var(--text2); margin-top: 4px; }
.auth-switch a { color: var(--accent); text-decoration: none; font-weight: 600; margin-left: 4px; }
.auth-switch a:hover { text-decoration: underline; }

/* ── Save to Account ── */
.qr-save-row { width: 100%; }
.save-account-btn {
  display: flex; align-items: center; justify-content: center; gap: 7px; width: 100%;
  padding: 9px 14px; border: 1.5px dashed #6366f1; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(6,182,212,0.08));
  color: #6366f1; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.save-account-btn:hover { background: linear-gradient(135deg, rgba(99,102,241,0.16), rgba(6,182,212,0.16)); }
.save-account-btn.saved { border-style: solid; background: rgba(16,185,129,0.08); border-color: var(--success); color: var(--success); cursor: default; }

/* ── Account Page ── */
#view-account { flex: 1; }
#view-settings { flex: 1; }
.account-page { max-width: 900px; margin: 0 auto; padding: 32px 24px 64px; display: flex; flex-direction: column; gap: 24px; }
.account-hero {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow);
  flex-wrap: wrap;
}
.account-avatar-lg {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.account-hero-info { flex: 1; min-width: 0; }
.account-hero-info h2 { font-size: 18px; font-weight: 800; }
.account-hero-info p { color: var(--text2); font-size: 13px; margin-top: 2px; }
.logout-btn {
  display: flex; align-items: center; gap: 7px; padding: 8px 16px;
  border-radius: var(--radius-sm); border: 1.5px solid var(--border2);
  background: var(--bg2); color: var(--danger); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; flex-shrink: 0;
}
.logout-btn:hover { background: rgba(239,68,68,0.08); border-color: var(--danger); }
.acc-stats-row { display: flex; gap: 14px; }
.acc-stat {
  flex: 1; background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 20px; text-align: center; box-shadow: var(--shadow);
}
.acc-stat-num { display: block; font-size: 36px; font-weight: 900; color: var(--accent); letter-spacing: -1px; line-height: 1; margin-bottom: 6px; }
.acc-stat-label { font-size: 12px; color: var(--text2); font-weight: 600; }
.acc-tabs {
  display: flex; gap: 6px; background: var(--surface); border: 1.5px solid var(--border);
  border-radius: 50px; padding: 5px; box-shadow: var(--shadow);
}
.acc-tab {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px; border-radius: 50px; border: none; background: transparent;
  color: var(--text2); font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.acc-tab:hover { background: var(--bg2); color: var(--text); }
.acc-tab.active { background: linear-gradient(135deg, #6366f1, #06b6d4); color: #fff; box-shadow: 0 2px 8px rgba(99,102,241,0.3); }
.acc-empty { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 60px 20px; color: var(--text2); text-align: center; }
.qr-saved-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.qr-saved-card {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 10px; transition: all 0.2s;
}
.qr-saved-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.qr-saved-canvas-wrap { background: #fff; border-radius: 8px; padding: 8px; display: flex; justify-content: center; }
.qr-saved-type { font-size: 10px; font-weight: 700; color: var(--accent); background: var(--accent-dim); padding: 2px 7px; border-radius: 4px; display: inline-block; width: fit-content; }
.qr-saved-data { font-size: 11px; color: var(--text3); font-family: monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qr-saved-date { font-size: 11px; color: var(--text3); }
.qr-saved-actions { display: flex; gap: 6px; align-items: center; }
.qr-saved-btn {
  padding: 7px 10px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--bg2); color: var(--text2); font-size: 11px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; display: flex; align-items: center; justify-content: center; gap: 4px;
}
.qr-saved-btn:hover { border-color: var(--accent); color: var(--accent); }
.url-saved-list { display: flex; flex-direction: column; gap: 10px; }
.url-saved-item {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 14px;
}
.url-saved-item-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.url-saved-short { color: var(--accent); font-size: 14px; font-weight: 700; text-decoration: none; }
.url-saved-short:hover { text-decoration: underline; }
.url-saved-orig { font-size: 12px; color: var(--text3); font-family: monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.url-saved-date { font-size: 11px; color: var(--text3); white-space: nowrap; }
.url-saved-actions { display: flex; gap: 6px; flex-shrink: 0; }
.settings-hero { display: flex; align-items: center; gap: 16px; padding: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px; }
.settings-hero-icon { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, var(--accent) 0%, #6366f1 100%); display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; }
.settings-hero-title { font-size: 20px; font-weight: 700; color: var(--text); margin: 0 0 4px; }
.settings-hero-sub { font-size: 13px; color: var(--text2); margin: 0; }
.settings-section { margin-bottom: 0; }
.settings-title { font-size: 13px; font-weight: 600; color: var(--text2); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.settings-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; }
.settings-save-btn { margin-top: 4px; padding: 9px 20px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius-xs); font-size: 13px; font-weight: 600; cursor: pointer; transition: opacity 0.2s; }
.settings-save-btn:hover { opacity: 0.88; }
.settings-save-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.settings-cancel-btn { margin-top: 4px; padding: 9px 16px; background: transparent; color: var(--text2); border: 1px solid var(--border); border-radius: var(--radius-xs); font-size: 13px; cursor: pointer; }
.url-edit-row { display: flex; gap: 6px; align-items: center; margin-top: 4px; }
.url-edit-input { flex: 1; font-size: 12px; padding: 4px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); outline: none; min-height: unset; }
.url-edit-input:focus { border-color: var(--accent); }
.url-edit-save { font-size: 11px; padding: 4px 10px; border-radius: 6px; border: none; background: var(--accent); color: #fff; cursor: pointer; white-space: nowrap; }
.url-edit-cancel { font-size: 11px; padding: 4px 10px; border-radius: 6px; border: 1px solid var(--border); background: transparent; color: var(--text3); cursor: pointer; white-space: nowrap; }

/* ── Responsive: Tablet ── */
@media (max-width: 768px) {
  .breadcrumb-inner { padding: 10px 16px; }
  .account-page { padding: 24px 16px 56px; gap: 18px; }
  .settings-card { padding: 18px 20px; }
}

/* ── Responsive: Mobile ── */
@media (max-width: 640px) {
  /* Account hero */
  .account-hero { padding: 16px; gap: 10px; }
  .account-hero-info h2 { font-size: 16px; }
  .account-hero-info p { font-size: 12px; }
  .logout-btn { padding: 7px 12px; font-size: 12px; }

  /* Stats */
  .acc-stat { padding: 14px 10px; }
  .acc-stat-num { font-size: 28px; }

  /* Tabs */
  .acc-tab { font-size: 12px; padding: 8px 6px; gap: 4px; }
  .acc-tab svg { display: none; }

  /* QR grid */
  .qr-saved-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }

  /* URL items */
  .url-saved-item { flex-wrap: wrap; padding: 12px 14px; gap: 6px; }
  .url-saved-item-info { min-width: 0; width: calc(100% - 80px); }
  .url-saved-date { display: none; }
  .url-saved-actions { flex-shrink: 0; }

  /* Settings */
  .settings-hero { padding: 16px; gap: 12px; flex-wrap: wrap; }
  .settings-hero-icon { width: 44px; height: 44px; border-radius: 12px; }
  .settings-hero-title { font-size: 17px; }
  .settings-card { padding: 16px; }
  .settings-save-btn { width: 100%; text-align: center; }

  /* Modal */
  .modal-box { padding: 24px 18px; border-radius: 14px; }

  /* Short URL result */
  .short-link-row { flex-wrap: wrap; gap: 8px; }
  .short-link-actions { width: 100%; justify-content: flex-end; }

  /* URL edit row */
  .url-edit-row { flex-wrap: wrap; }
  .url-edit-input { width: 100%; }

  /* Touch targets — small buttons get comfortable tap areas (min 44px) */
  .url-edit-save, .url-edit-cancel { padding: 10px 16px; font-size: 12px; min-height: 44px; }
  .history-copy { padding: 12px 16px; font-size: 12px; min-height: 44px; }
  .icon-btn { width: 44px; height: 44px; }
  .history-item { padding: 14px 16px; }

  /* Toast — wrap long messages instead of overflowing viewport */
  .toast { white-space: normal; max-width: calc(100vw - 32px); text-align: center; }
}

/* ── Responsive: Small phones (≤400px) ── */
@media (max-width: 400px) {
  .header-inner { padding: 0 12px; gap: 8px; }
  .header-actions { gap: 6px; }
  .lang-btn { padding: 4px 8px; }
  .tools-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .qr-saved-grid { grid-template-columns: 1fr; }
  .acc-stats-row { gap: 8px; }
  .account-page { padding: 16px 12px 48px; }
  .settings-card { padding: 14px; }
  .modal-box { padding: 20px 14px; }
}

/* ── Responsive: Landscape phone ── */
@media (max-height: 500px) and (orientation: landscape) {
  .hero { padding: 28px 20px 24px; }
  .hero-title { font-size: 36px; }
  .modal-overlay { align-items: flex-start; padding: 12px; overflow-y: auto; }
  .modal-box { margin: auto; }
  .tools-section { padding: 20px 16px 32px; }
}