:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(17, 24, 39, 0.9);
    --border-color: rgba(148, 163, 184, 0.1);
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --accent-blue: #3b82f6;
    --accent-teal: #0d9488;
    --accent-indigo: #6366f1;
    --accent-pink: #ec4899;
    --glass-bg: rgba(15, 23, 42, 0.8);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    padding: 2.5rem 1.25rem;
    line-height: 1.6;
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(13, 148, 136, 0.08) 0px, transparent 50%);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-badge {
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-pink));
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.5px;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-indigo), #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.mode-badge {
    padding: 0.45rem 1rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(99, 102, 241, 0.1);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.2);
    backdrop-filter: blur(4px);
}

.search-card {
    margin-bottom: 2rem;
    border: 1px solid rgba(99, 102, 241, 0.15);
    background: rgba(17, 24, 39, 0.95);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.05);
}

.search-form-row {
    display: flex;
    gap: 1rem;
}

.search-input {
    flex: 1;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.15);
    color: var(--text-main);
}

.search-input:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.btn-search {
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-pink));
    color: white;
    border: none;
    padding: 0.75rem 1.75rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-search:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
}

.preset-queries {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.preset-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 700;
}

.preset-btn {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #c7d2fe;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-btn:hover {
    background: rgba(99, 102, 241, 0.35);
    border-color: rgba(99, 102, 241, 0.6);
    color: #ffffff;
    transform: translateY(-1px);
}

.search-results-container {
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: #a5b4fc;
    margin-bottom: 1rem;
}

.btn-clear-search {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    text-decoration: underline;
}

.btn-clear-search:hover {
    color: var(--text-main);
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-result-item {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 12px;
    padding: 1.25rem;
    animation: fadeIn 0.3s ease;
}

.search-result-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    margin-bottom: 0.6rem;
}

.search-result-title {
    font-weight: 700;
    color: var(--text-main);
}

.search-result-score {
    background: rgba(13, 148, 136, 0.15);
    color: #2dd4bf;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    border: 1px solid rgba(13, 148, 136, 0.25);
}

.search-result-msg {
    font-size: 0.9rem;
    color: #cbd5e1;
    line-height: 1.5;
    background: rgba(15, 23, 42, 0.8);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-indigo);
    font-style: italic;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1.2fr 1.8fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(16px);
}

.card-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--accent-indigo);
    border-radius: 2px;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: all 0.25s ease;
    background: rgba(15, 23, 42, 0.4);
    color: var(--text-main);
}

.form-control:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

textarea.form-control {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-blue));
    color: white;
    border: none;
    padding: 0.85rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.25);
}

.btn-submit:disabled {
    background: #334155;
    color: #64748b;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.contact-logs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 520px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.log-item {
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.3s ease;
}

.log-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
    padding-bottom: 0.25rem;
}

.log-id {
    font-family: monospace;
    font-weight: 600;
    color: var(--accent-indigo);
}

.log-sender {
    font-size: 0.9rem;
    color: var(--text-main);
    margin-bottom: 0.4rem;
}

.log-msg {
    font-size: 0.85rem;
    color: #94a3b8;
    background: rgba(15, 23, 42, 0.5);
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-teal);
}

.loading-state, .empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    font-style: italic;
}

footer {
    margin-top: 3rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.btn-seed {
    background: rgba(99, 102, 241, 0.1);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 0.45rem 1.25rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    backdrop-filter: blur(4px);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-seed:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.6);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.btn-seed:disabled {
    cursor: not-allowed;
    background: rgba(148, 163, 184, 0.05);
    border-color: rgba(148, 163, 184, 0.15);
    color: var(--text-muted);
    transform: none;
    box-shadow: none;
}

.btn-seed.loading {
    background: rgba(236, 72, 153, 0.15);
    color: #fbcfe8;
    border-color: rgba(236, 72, 153, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-seed.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.15),
        transparent
    );
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(50%); }
}

.btn-seed.success {
    background: rgba(13, 148, 136, 0.2);
    color: #2dd4bf;
    border-color: rgba(13, 148, 136, 0.4);
    box-shadow: 0 0 10px rgba(13, 148, 136, 0.2);
}

/* 3-Way Search Comparison CSS */
.search-results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 1.5rem;
}

@media (max-width: 900px) {
    .search-results-grid {
        grid-template-columns: 1fr;
    }
}

.search-column {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 14px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}

.search-column:nth-child(1) {
    border-top: 4px solid #f43f5e;
    box-shadow: 0 4px 20px rgba(244, 63, 94, 0.05);
}
.search-column:nth-child(2) {
    border-top: 4px solid #f59e0b;
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.05);
}
.search-column:nth-child(3) {
    border-top: 4px solid #10b981;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.05);
}

.column-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-bottom: 1.5px solid rgba(148, 163, 184, 0.15);
    padding-bottom: 0.85rem;
}

.time-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-family: monospace;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.4);
    color: #38bdf8;
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.column-badge {
    font-size: 1.05rem;
    font-weight: 800;
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    width: fit-content;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge-like {
    background: rgba(244, 63, 94, 0.25);
    color: #ff8fa3;
    border: 1px solid rgba(244, 63, 94, 0.5);
    text-shadow: 0 0 8px rgba(244, 63, 94, 0.3);
}

.badge-fts {
    background: rgba(245, 158, 11, 0.25);
    color: #fde047;
    border: 1px solid rgba(245, 158, 11, 0.5);
    text-shadow: 0 0 8px rgba(245, 158, 11, 0.3);
}

.badge-vector {
    background: rgba(16, 185, 129, 0.25);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.5);
    text-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

.column-desc {
    font-size: 0.85rem;
    font-weight: 600;
}

.search-column:nth-child(1) .column-desc {
    color: #fda4af;
}

.search-column:nth-child(2) .column-desc {
    color: #fef08a;
}

.search-column:nth-child(3) .column-desc {
    color: #a7f3d0;
}

.column-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 100px;
}

.search-result-score.spec-like {
    background: rgba(244, 63, 94, 0.1);
    color: #f43f5e;
    border-color: rgba(244, 63, 94, 0.2);
}

.search-result-score.spec-fts {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.2);
}

.search-result-score.spec-vector {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.2);
}