/* =====================================================
   MST Lookup - Premium Dark Theme
   ===================================================== */

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent2: #8b5cf6;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.12);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg-primary); color: var(--text-primary); min-height: 100vh; line-height: 1.6; overflow-x: hidden; }

/* Background */
.bg-gradient {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background: radial-gradient(circle at 20% 20%, rgba(99,102,241,.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(139,92,246,.06) 0%, transparent 50%);
    animation: bgPulse 8s ease-in-out infinite alternate;
}
@keyframes bgPulse { 0% { opacity: .8; } 100% { opacity: 1; } }

.bg-grid {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background-image: linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* Layout */
.app-container { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; padding: 0 24px; min-height: 100vh; display: flex; flex-direction: column; }

/* Header */
.header { position: sticky; top: 0; z-index: 100; backdrop-filter: blur(20px); background: rgba(10,14,26,.7); margin: 0 -24px; padding: 14px 24px; border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; max-width: 900px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.logo-icon { width: 36px; height: 36px; border-radius: var(--radius-sm); background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; color: white; box-shadow: var(--shadow-glow); }
.logo-text { font-size: 1.15rem; font-weight: 800; letter-spacing: -0.02em; }
.logo-accent { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.header-right { display: flex; align-items: center; gap: 12px; }
.header-badge { display: flex; align-items: center; gap: 8px; font-size: .78rem; color: var(--success); background: var(--success-bg); padding: 5px 12px; border-radius: 100px; font-weight: 500; }
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:.5; transform:scale(.8); } }

.scrape-btn {
    display: flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--bg-glass); color: var(--text-secondary);
    font-family: var(--font); font-size: .8rem; font-weight: 500; cursor: pointer; transition: all var(--transition);
}
.scrape-btn:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }
.scrape-btn.loading { opacity: .6; pointer-events: none; }
.scrape-btn.loading svg { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Hero */
.main { flex: 1; display: flex; flex-direction: column; }
.hero { text-align: center; padding: 60px 0 32px; animation: fadeInUp .6s ease-out; }
@keyframes fadeInUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }

.hero-title { font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.2; margin-bottom: 12px; }
.gradient-text { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1rem; color: var(--text-secondary); max-width: 520px; margin: 0 auto 40px; }

/* Search */
.search-container { max-width: 640px; margin: 0 auto; width: 100%; }
.search-box { display: flex; align-items: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 6px 6px 6px 20px; transition: all var(--transition); box-shadow: var(--shadow-md); backdrop-filter: blur(12px); }
.search-box:focus-within { border-color: var(--accent); box-shadow: var(--shadow-md), 0 0 0 3px var(--accent-glow); }
.search-icon { color: var(--text-muted); flex-shrink: 0; display: flex; transition: color var(--transition); }
.search-box:focus-within .search-icon { color: var(--accent); }
.search-input { flex: 1; border: none; background: transparent; padding: 14px 16px; font-size: 1rem; color: var(--text-primary); font-family: var(--font); outline: none; min-width: 0; }
.search-input::placeholder { color: var(--text-muted); }
.search-btn { flex-shrink: 0; padding: 12px 28px; background: var(--accent-gradient); border: none; border-radius: var(--radius-md); color: white; font-family: var(--font); font-size: .95rem; font-weight: 600; cursor: pointer; transition: all var(--transition); position: relative; overflow: hidden; }
.search-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(99,102,241,.4); }
.search-btn:active { transform: translateY(0); }
.search-btn.loading .btn-text { opacity: 0; }
.search-btn.loading .btn-loader { display: block; }
.btn-loader { display: none; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 20px; height: 20px; border: 2px solid rgba(255,255,255,.3); border-top-color: white; border-radius: 50%; animation: spin .6s linear infinite; }

.search-hints { display: flex; align-items: center; gap: 8px; margin-top: 14px; justify-content: center; flex-wrap: wrap; }
.hint { font-size: .8rem; color: var(--text-muted); }
.hint-tag { font-size: .8rem; color: var(--text-secondary); background: var(--bg-glass); border: 1px solid var(--border); padding: 3px 12px; border-radius: 100px; cursor: pointer; font-family: var(--font); transition: all var(--transition); }
.hint-tag:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }

/* Toast */
.toast { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 16px; animation: fadeInUp .3s ease-out; }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--error); }
.toast-icon { font-size: 1.2rem; }
.toast-msg { flex: 1; font-size: .88rem; color: var(--text-secondary); }
.toast-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.2rem; padding: 0 4px; }

/* Results */
.results-section { margin-top: 16px; animation: fadeInUp .4s ease-out; }
.results-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.results-title { font-size: 1rem; font-weight: 600; color: var(--text-secondary); }
.results-close { width: 34px; height: 34px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition); }
.results-close:hover { background: var(--error-bg); border-color: var(--error); color: var(--error); }

/* Business Card */
.business-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 12px; backdrop-filter: blur(12px); transition: all var(--transition); animation: cardSlide .3s ease-out; }
@keyframes cardSlide { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
.business-card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-lg); }

.card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.card-company-name { font-size: 1.15rem; font-weight: 700; line-height: 1.4; flex: 1; }

/* Invoice Accounting Table */
.invoice-section { 
    margin-top: 24px; padding: 16px; border-radius: var(--radius-lg); 
    background: rgba(99,102,241,0.03); border: 1px solid var(--border);
}
.invoice-title { font-size: .82rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.invoice-table { width: 100%; border-collapse: collapse; }
.invoice-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.invoice-row:last-child { border-bottom: none; }
.invoice-label { font-size: .78rem; color: var(--text-muted); min-width: 100px; }
.invoice-value { font-size: .85rem; font-weight: 500; color: var(--text-primary); flex: 1; margin: 0 12px; word-break: break-word; }
.mini-copy-btn { 
    padding: 6px 12px; font-size: .72rem; font-weight: 600; color: var(--text-muted); 
    background: var(--bg-glass); border: 1px solid var(--border); border-radius: 6px; 
    cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.mini-copy-btn:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }

.nearby-section { margin-top: 24px; }
.nearby-grid { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 12px; }
.nearby-item { 
    display: flex; flex-direction: column; gap: 4px; padding: 12px; 
    background: var(--bg-glass); border: 1px solid var(--border); border-radius: var(--radius-md);
    text-decoration: none; transition: all var(--transition);
}
.nearby-item:hover { border-color: var(--accent); background: var(--accent-glow); transform: translateX(4px); }
.nearby-name { font-size: .88rem; font-weight: 600; color: var(--text-primary); }
.nearby-addr { font-size: .75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.card-tax-code { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.tax-code-label { font-size: .7rem; font-weight: 800; text-transform: uppercase; color: var(--text-muted); background: var(--border); padding: 2px 6px; border-radius: 4px; letter-spacing: 1px; }
.tax-code-value { 
    font-size: 1.35rem; font-weight: 800; font-family: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace; 
    color: var(--accent); background: rgba(99, 102, 241, 0.15); padding: 6px 16px; 
    border-radius: var(--radius-md); letter-spacing: 0.12em; border: 1px solid rgba(99, 102, 241, 0.3);
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}
.copy-btn { width: 32px; height: 32px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition); }
.copy-btn:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }
.copy-btn.copied { background: var(--success-bg); border-color: var(--success); color: var(--success); }

.refresh-btn {
    display: flex; align-items: center; justify-content: center; width: 32px; height: 32px;
    border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-glass);
    color: var(--text-muted); transition: all var(--transition); cursor: pointer;
}
.refresh-btn:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); transform: rotate(180deg); }

.share-btn {
    display: flex; align-items: center; justify-content: center; width: 32px; height: 32px;
    border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-glass);
    color: var(--text-muted); transition: all var(--transition); cursor: pointer;
}
.share-btn:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.refresh-notice-card {
    background: rgba(245, 158, 11, 0.05);
    border: 1px dashed rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: fadeInUp .4s ease-out;
}
.refresh-notice-icon { color: var(--warning); flex-shrink: 0; }
.refresh-notice-text { font-size: .85rem; color: var(--text-secondary); line-height: 1.5; flex: 1; }
.refresh-notice-time { font-weight: 600; color: var(--text-primary); }
.refresh-notice-link { 
    display: inline-flex; align-items: center; gap: 4px; border-bottom: 1px solid var(--accent);
    color: var(--accent); text-decoration: none; font-weight: 600; margin-left: 4px; transition: all var(--transition);
}
.refresh-notice-link:hover { color: var(--accent2); border-color: var(--accent2); }

.zalo-link { 
    display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; 
    margin-left: 8px; vertical-align: middle; transition: transform var(--transition);
}
.zalo-link:hover { transform: scale(1.15); }
.zalo-link svg { width: 100%; height: 100%; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2)); }

.card-info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.info-item { display: flex; flex-direction: column; gap: 3px; }
.info-item.full-width { grid-column: 1 / -1; }
.info-label { font-size: .75rem; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }
.info-value { font-size: .9rem; color: var(--text-primary); line-height: 1.5; }
.info-value.empty { color: var(--text-muted); font-style: italic; }

.status-badge { display: inline-flex; align-items: center; gap: 5px; font-size: .82rem; font-weight: 600; padding: 3px 10px; border-radius: 100px; }
.status-active { background: var(--success-bg); color: var(--success); }
.status-inactive { background: var(--error-bg); color: var(--error); }
.status-unknown { background: var(--warning-bg); color: var(--warning); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.source-badge { display: inline-flex; align-items: center; gap: 5px; font-size: .72rem; font-weight: 500; padding: 2px 8px; border-radius: 100px; margin-top: 14px; }
.source-database { background: rgba(99,102,241,.1); color: var(--accent); }
.source-vietinvoice { background: var(--warning-bg); color: var(--warning); }
.source-vietqr { background: var(--success-bg); color: var(--success); }
.source-masothue, .source-bocaodientu { background: rgba(139,92,246,.1); color: var(--accent2); }
.source-xinvoice { background: rgba(6,182,212,.12); color: #06b6d4; }

/* Breadcrumb & Back Link */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: var(--text-muted); margin-bottom: 20px; padding-top: 20px; }
.breadcrumb a { color: var(--text-secondary); text-decoration: none; transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.bc-sep { color: var(--text-muted); }
.back-link { font-size: .85rem; color: var(--text-secondary); text-decoration: none; transition: color var(--transition); }
.back-link:hover { color: var(--accent); }
.business-detail { margin-bottom: 0; }
.business-detail .card-company-name { font-size: 1.4rem; }
.card-intl-name { font-size: .85rem; color: var(--text-muted); margin-top: 4px; font-style: italic; }

/* Industries */
.industries-list { display: flex; flex-direction: column; gap: 6px; }
.industry-item { display: flex; align-items: baseline; gap: 10px; padding: 8px 12px; background: rgba(255,255,255,.02); border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,.04); transition: background var(--transition); }
.industry-item:hover { background: rgba(255,255,255,.05); }
.industry-code { font-family: 'JetBrains Mono', monospace; font-size: .78rem; font-weight: 600; color: var(--accent); background: rgba(99,102,241,.1); padding: 2px 8px; border-radius: 4px; white-space: nowrap; min-width: 48px; text-align: center; }
.industry-name { font-size: .88rem; color: var(--text-secondary); line-height: 1.4; }

/* Advanced Features */
.map-link {
    display: inline-flex; align-items: center; gap: 4px; font-size: .78rem; font-weight: 600;
    color: var(--accent); background: var(--accent-glow); padding: 4px 10px; border-radius: 6px;
    text-decoration: none; margin-left: 8px; transition: all var(--transition);
}
.map-link:hover { background: var(--accent); color: white; transform: translateY(-1px); }

.qr-card {
    display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 20px;
    background: var(--bg-glass); border: 1px solid var(--border); border-radius: var(--radius-lg);
    text-align: center; margin-top: 16px;
}
.qr-image { width: 150px; height: 150px; background: white; padding: 8px; border-radius: var(--radius-sm); }
.qr-text { font-size: .82rem; color: var(--text-muted); }

.ind-summary { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.ind-badge { 
    display: flex; align-items: center; gap: 6px; font-size: .78rem; font-weight: 500;
    padding: 6px 12px; border-radius: 100px; border: 1px solid var(--border);
    background: var(--bg-glass); color: var(--text-secondary);
}
.ind-badge-count { background: var(--accent-glow); color: var(--accent); padding: 2px 6px; border-radius: 4px; font-size: .72rem; }

.contact-link, a[href^="tel:"], a[href^="mailto:"] { color: #60a5fa !important; text-decoration: none; transition: color var(--transition); }
.contact-link:hover, a[href^="tel:"]:hover, a[href^="mailto:"]:hover { color: #93c5fd !important; text-decoration: underline; }
.copyable { cursor: pointer; transition: all var(--transition); border-bottom: 1px dashed transparent; }
.copyable:hover { color: var(--accent) !important; border-bottom-color: var(--accent); }
.copyable:active { opacity: 0.6; scale: 0.98; }

/* Error */
.error-card { text-align: center; padding: 40px 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-top: 16px; animation: fadeInUp .4s ease-out; }
.error-icon { color: var(--text-muted); margin-bottom: 14px; }
.error-message { color: var(--text-secondary); font-size: .95rem; margin-bottom: 16px; }
.error-retry { padding: 8px 20px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: transparent; color: var(--text-primary); font-family: var(--font); font-size: .88rem; font-weight: 500; cursor: pointer; transition: all var(--transition); }
.error-retry:hover { background: var(--accent-glow); border-color: var(--accent); }

/* Recent Section */
.recent-section { margin-top: 32px; animation: fadeInUp .6s ease-out .2s both; }
.section-header { margin-bottom: 16px; }
.section-title { font-size: 1rem; font-weight: 600; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }

.recent-grid { display: grid; gap: 8px; }
.recent-item { display: grid; grid-template-columns: 1fr auto auto; gap: 12px; align-items: center; padding: 12px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); cursor: pointer; transition: all var(--transition); }
.recent-item:hover { border-color: var(--border-hover); background: rgba(30,41,59,.6); }
.recent-name { font-size: .88rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.recent-mst { font-size: .82rem; font-family: monospace; color: var(--accent); background: var(--accent-glow); padding: 2px 8px; border-radius: 4px; }
.recent-province { font-size: .78rem; color: var(--text-muted); white-space: nowrap; }

/* Skeleton */
.skeleton-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }
.skeleton-line { height: 14px; background: linear-gradient(90deg, var(--bg-glass) 25%, rgba(255,255,255,.06) 50%, var(--bg-glass) 75%); background-size: 200% 100%; border-radius: 6px; margin-bottom: 10px; animation: shimmer 1.5s infinite; }
.skeleton-line:nth-child(1) { width: 55%; height: 18px; margin-bottom: 20px; }
.skeleton-line:nth-child(2) { width: 35%; }
.skeleton-line:nth-child(3) { width: 75%; }
.skeleton-line:nth-child(4) { width: 50%; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Footer */
.footer { text-align: center; padding: 28px 0; color: var(--text-muted); font-size: .8rem; border-top: 1px solid var(--border); margin-top: auto; }

/* Responsive */
@media (max-width: 640px) {
    .app-container { padding: 0 16px; }
    .header { margin: 0 -16px; padding: 10px 16px; }
    .hero { padding: 40px 0 20px; }
    .hero-subtitle { font-size: .9rem; margin-bottom: 28px; }
    .search-box { flex-direction: column; padding: 10px; gap: 8px; }
    .search-icon { display: none; }
    .search-input { padding: 10px; width: 100%; text-align: center; }
    .search-btn { width: 100%; padding: 12px; }
    .card-header { flex-direction: column; gap: 10px; }
    .card-info-grid { grid-template-columns: 1fr; }
    .header-badge, .scrape-btn span:not(svg) { display: none; }
    .scrape-btn { padding: 8px; }
    .recent-item { grid-template-columns: 1fr auto; }
    .recent-province { display: none; }
}

/* Favorite Button */
.fav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.fav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    color: #f43f5e;
}

.fav-btn.active {
    background: rgba(244, 63, 94, 0.1);
    border-color: rgba(244, 63, 94, 0.2);
    color: #f43f5e;
}

.fav-btn svg {
    width: 20px;
    height: 20px;
    fill: none;
    transition: fill 0.2s;
}

.fav-btn.active svg {
    fill: currentColor;
}

/* Tool Page Styles */
.tool-container { max-width: 800px; margin: 0 auto; padding-bottom: 60px; }
.tool-tabs { display: flex; gap: 12px; margin-bottom: 24px; background: rgba(255,255,255,0.03); padding: 6px; border-radius: 14px; border: 1px solid var(--border); }
.tool-tab { flex: 1; padding: 12px; text-align: center; border-radius: 10px; cursor: pointer; color: var(--text-muted); font-size: 0.9rem; font-weight: 600; transition: all 0.2s; }
.tool-tab.active { background: var(--bg-card); color: var(--primary); box-shadow: var(--shadow-sm); border: 1px solid var(--border-hover); }

.tool-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; animation: fadeInUp 0.4s ease-out; }
.input-group { margin-bottom: 20px; }
.input-label { display: block; margin-bottom: 8px; font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.input-wrapper { position: relative; display: flex; align-items: center; }
.tool-input { width: 100%; padding: 14px 16px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: 10px; color: var(--text-primary); font-family: var(--font); font-size: 1rem; transition: all 0.2s; }
.tool-input:focus { outline: none; border-color: var(--primary); background: rgba(255,255,255,0.05); }
.input-suffix { position: absolute; right: 16px; color: var(--text-muted); font-size: 0.85rem; pointer-events: none; }

.result-section { margin-top: 32px; padding-top: 32px; border-top: 1px dashed var(--border); }
.result-grid { display: grid; gap: 12px; }
.result-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.03); }
.result-row:last-child { border-bottom: none; }
.result-label { font-size: 0.9rem; color: var(--text-secondary); }
.result-value { font-size: 1rem; font-weight: 700; color: var(--text-primary); }
.result-value.highlight { color: var(--primary); font-size: 1.25rem; }

.tool-info { margin-top: 24px; padding: 16px; background: rgba(var(--accent-rgb), 0.05); border-radius: 12px; display: flex; gap: 12px; }
.tool-info-icon { color: var(--accent); }
.tool-info-text { font-size: 0.82rem; color: var(--text-muted); line-height: 1.5; }