@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-main: #000000;
    --bg-card: #0a0a0a;
    --bg-hover: #141414;
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-hover: #ff6a00;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #ff6a00;
    --accent-hover: #e55f00;
    --success-bg: rgba(74, 222, 128, 0.1);
    --success-text: #4ade80;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 9999px;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text-secondary);
    background-color: var(--bg-main);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

/* Floating Clean Header */
header {
    margin: 2rem auto;
    max-width: 900px;
    background-color: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    position: sticky;
    top: 2rem;
    z-index: 100;
    box-shadow: 0 4px 30px rgba(0,0,0,0.4);

    flex-wrap: wrap;
    gap: 1rem;
}

header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header nav {
    display: flex;
    gap: 0.5rem;
}

header nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    transition: all 0.2s ease;
}

header nav a:hover {
    color: var(--text-primary);
    background-color: var(--border-subtle);
}

header nav a.active {
    color: var(--bg-main);
    background-color: var(--text-primary);
}

main {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem 5rem;
}

main > h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-subtle);
}

main h3 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

main p {
    margin-bottom: 1.25rem;
}

/* Crisp Cards */
.guide-card {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.guide-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background: transparent;
    transition: background 0.3s ease;
}

.guide-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px -10px rgba(255, 106, 0, 0.15);
    background-color: #0d0d0d;
}

.guide-card:hover::before {
    background: var(--accent);
}

.guide-card h3 {
    font-size: 1.3rem;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.guide-card p {
    margin-bottom: 2rem;
    flex-grow: 1;
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--text-primary);
    color: var(--bg-main);
    padding: 0.6rem 1.25rem;
    text-decoration: none;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn:hover {
    transform: scale(1.02);
    opacity: 0.9;
}

.btn-primary {
    background-color: var(--accent);
    color: #000;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--text-primary);
    background-color: var(--text-primary);
    color: var(--bg-main);
}

/* Step Timeline */
.step-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.step-container::before {
    content: '';
    position: absolute;
    left: 1.75rem;
    top: 2rem;
    bottom: 2rem;
    width: 2px;
    background: var(--border-color);
    z-index: 0;
}

.step-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    position: relative;
    padding-left: 5rem;
    transition: all 0.3s ease;
    z-index: 1;
}

.step-card:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
    box-shadow: 0 8px 20px -8px rgba(255, 106, 0, 0.1);
}

.step-number {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-card);
    border: 2px solid var(--accent);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--accent);
    z-index: 2;
    box-shadow: 0 0 0 4px var(--bg-main);
}

.step-card h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
}

.step-card p {
    margin-bottom: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.badge {
    background-color: rgba(255, 106, 0, 0.1);
    color: var(--accent);
    padding: 0.15rem 0.6rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
    vertical-align: middle;
    border: 1px solid rgba(255, 106, 0, 0.2);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.feature-box {
    background: linear-gradient(135deg, var(--bg-card), #080808);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Seller Directory UIs */
.filter-group {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.filter-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-left: 0.5rem;
    margin-right: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.filter-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
    font-family: inherit;
}

.filter-btn:hover {
    color: var(--text-primary);
    background: var(--border-subtle);
}

.filter-btn.active {
    background: var(--text-primary);
    color: var(--bg-main);
}

/* Node List UIs */
.nodes-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.node-row {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 1.5rem;
    align-items: center;
    transition: all 0.2s ease;
}

.node-row:hover {
    border-color: var(--border-hover);
    background-color: #0d0d0d;
}

.node-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.node-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.node-type {
    font-size: 0.85rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

.node-meta {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.node-metrics {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.score-badge {
    display: flex;
    align-items: stretch;
    background: #000;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.shield-tag {
    background: #18181b;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-right: 1px solid var(--border-color);
    font-weight: 500;
}

.shield-val {
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.val-high { color: var(--success-text); }
.val-mid { color: #fbbf24; }

.node-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.action-link {
    padding: 0.5rem 1rem;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
}

.action-link:hover {
    background: #18181b;
    border-color: #3f3f46;
}

.action-link.primary {
    background: transparent;
    color: var(--accent);
    border-color: rgba(255, 106, 0, 0.3);
}

.action-link.primary:hover {
    background: rgba(255, 106, 0, 0.1);
    border-color: var(--accent);
}

@media (max-width: 768px) {
    .node-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .node-actions {
        justify-content: flex-start;
    }
    header {
        margin: 1rem;
        flex-direction: column;
        gap: 1rem;
        border-radius: var(--radius-md);
    }
    header nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}
.hero {
    padding: 4rem 2rem;
    margin-bottom: 3rem;
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at top left, rgba(255, 106, 0, 0.15) 0%, transparent 60%);
    border: 1px solid rgba(255, 106, 0, 0.1);
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; width: 50%;
    background: radial-gradient(circle at center right, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
}
.registry-grid-header {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 1.5rem;
    padding: 0 1.5rem 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}
.search-container {
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}
.search-input {
    flex-grow: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s;
}
.search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(255, 106, 0, 0.2);
}
.tags-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.tag-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}
.tag-btn:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}
.tag-btn.active {
    background: rgba(255, 106, 0, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}
/* Flat Rate Guide Specific Styles */
.comparison-table {
    width: 100%;
    border-collapse: separate; border-spacing: 0;
    margin-bottom: 2.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.comparison-table th, .comparison-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.comparison-table th {
    background: #111;
    color: var(--text-primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}
.comparison-table tr:last-child td {
    border-bottom: none;
}
.comparison-table tbody tr:hover {
    background: #0d0d0d;
}

.flex-header {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}
.icon-box {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: rgba(255, 106, 0, 0.05);
    color: var(--accent);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 1rem;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}
.svg-icon {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.rehearsal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}
.example {
    background: #0d0d0d;
    padding: 1.5rem;
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-sm);
    margin: 1.5rem 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.9rem;
}
.method-card {
    background: var(--bg-card);
    border-left: 4px solid var(--accent);
    padding: 1.5rem;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    margin-bottom: 1.5rem;
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* === PREMIUM DIRECTORY UIs === */
.registry-container {
    padding: 0 1.5rem 4rem 1.5rem;
    animation: fadeIn 0.4s ease-out forwards;
}

.query-bar {
    display: flex;
    align-items: center;
    background: rgba(25, 25, 25, 0.6);
    
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    padding: 0.6rem 1.25rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s;
}
.query-bar:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.1);
}
.query-icon {
    color: var(--text-muted);
    width: 20px;
    height: 20px;
    margin-right: 0.75rem;
}
.query-bar input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
}
.query-bar input::placeholder {
    color: var(--text-muted);
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}
.tag-chip {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: lowercase;
}
.tag-chip:hover {
    background: var(--border-subtle);
    color: var(--text-primary);
}
.tag-chip.active {
    background: rgba(255, 106, 0, 0.15);
    color: var(--accent);
    border-color: rgba(255, 106, 0, 0.3);
    font-weight: 500;
}

.registry-grid-header {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 1.5rem;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 1rem;
}

.list-registry {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.node-row {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    align-items: center;
    transition: all 0.2s;
}
.node-row:hover {
    border-color: rgba(255, 106, 0, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.node-core {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.node-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 1.1rem;
    color: #ffffff;
    letter-spacing: 0.02em;
}
.check-icon {
    color: var(--accent);
    width: 1.1rem;
    height: 1.1rem;
}
.node-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}
.node-tag-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.25rem;
}
.node-tag {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.node-telemetry {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}
.node-shield {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    min-width: 55px;
}
.node-shield-overall {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 106, 0, 0.05);
    border: 1px solid rgba(255, 106, 0, 0.3);
    border-radius: var(--radius-md);
    min-width: 55px;
}
.shield-tag {
    font-size: 0.65rem;
    padding: 0.3rem 0;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.node-shield-overall .shield-tag {
    border-bottom: 1px solid rgba(255, 106, 0, 0.3);
    color: var(--accent);
}
.shield-val {
    padding: 0.4rem 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: #ffffff;
}
.node-shield.high .shield-val { color: var(--success-text); }
.node-shield.mid .shield-val { color: var(--warning-text); }
.node-shield.low .shield-val { color: var(--error-text); }
.node-shield-neutral {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    letter-spacing: 0.05em;
}

.node-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
}
.node-route {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1.1rem;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.node-route[type="button"] {
    font-family: inherit;
    cursor: pointer;
}
.node-route:hover {
    background: var(--text-primary);
    color: #000000;
    border-color: var(--text-primary);
}
.node-route svg {
    width: 14px;
    height: 14px;
}

.zone-divider {
    padding: 1rem 1.5rem;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-md);
    background: rgba(0,0,0,0.5);
    margin: 1rem 0;
    grid-column: 1 / -1;
}
.zone-red { 
    color: var(--error-text); 
    border-left: 3px solid var(--error-text); 
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.zone-yellow { 
    color: var(--warning-text); 
    border-left: 3px solid var(--warning-text); 
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.contact-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
}
.contact-modal.open {
    display: block;
}
.contact-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(2px);
}
.contact-panel {
    position: relative;
    width: min(640px, calc(100% - 2rem));
    margin: 8vh auto 0;
    background: #0e0e0e;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
    overflow: hidden;
}
.contact-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
}
.contact-head h3 {
    margin: 0;
    font-size: 1rem;
}
.contact-close {
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border-radius: var(--radius-pill);
    padding: 0.25rem 0.65rem;
    cursor: pointer;
}
.contact-body {
    max-height: 60vh;
    overflow: auto;
    padding: 1rem 1.25rem;
}
.contact-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 1rem;
    align-items: start;
    padding: 0.6rem 0;
    border-bottom: 1px dashed var(--border-subtle);
}
.contact-row:last-child {
    border-bottom: none;
}
.contact-key {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.contact-values {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.contact-link {
    color: var(--accent);
    text-decoration: none;
    overflow-wrap: anywhere;
}
.contact-link:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .registry-grid-header { display: none; }
    .node-row {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        padding: 1.5rem;
    }
    .node-telemetry { 
        justify-content: flex-start; 
        padding-top: 0.5rem;
        border-top: 1px solid var(--border-subtle);
    }
    .node-actions { 
        align-items: stretch; 
    }
    .node-route {
        justify-content: center;
        padding: 0.6rem;
    }
    .contact-row {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }
}
.node-controls {
    position: sticky;
    top: 6.5rem;
    z-index: 90;
    background: var(--bg-main);
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}
.node-controls.is-sticky {
    padding: 1rem;
    background: var(--bg-main);
    
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    margin: 0 -1rem 2rem -1rem;
}
.search-filter-wrapper {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}
.node-controls {
    position: sticky;
    top: 6.5rem;
    z-index: 90;
    background: var(--bg-main);
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}
.node-controls.is-sticky {
    padding: 1rem;
    background: var(--bg-main);
    
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    margin: 0 -1rem 2rem -1rem;
}
.search-filter-wrapper {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}
.search-filter-wrapper .query-bar {
    margin-bottom: 0;
    flex: 1;
    min-width: 300px;
}
.search-filter-wrapper .filter-group {
    margin-bottom: 0;
}
.tags-container {
    margin-top: 1rem;
}
.search-filter-wrapper .query-bar {
    margin-bottom: 0;
    flex: 1;
    min-width: 300px;
}
.search-filter-wrapper .filter-group {
    margin-bottom: 0;
}
.tags-container {
    margin-top: 1rem;
}

.node-telemetry {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    align-items: center;
}
.node-shield {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    padding: 0.25rem 0.75rem;
    min-width: auto;
    flex-direction: row;
}
.node-shield-overall {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 106, 0, 0.08);
    border: 1px solid rgba(255, 106, 0, 0.3);
    border-radius: var(--radius-pill);
    padding: 0.25rem 0.75rem;
    min-width: auto;
    flex-direction: row;
}
.shield-tag {
    font-size: 0.7rem;
    padding: 0;
    width: auto;
    border-bottom: none;
    color: var(--text-muted);
    font-weight: 600;
}
.node-shield-overall .shield-tag {
    border-bottom: none;
    color: var(--accent);
}
.shield-val {
    padding: 0;
    font-size: 0.95rem;
    font-weight: 700;
}

.node-telemetry {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    align-items: center;
}
.node-shield {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    padding: 0.25rem 0.75rem;
    min-width: auto;
    flex-direction: row;
}
.node-shield-overall {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 106, 0, 0.08);
    border: 1px solid rgba(255, 106, 0, 0.3);
    border-radius: var(--radius-pill);
    padding: 0.25rem 0.75rem;
    min-width: auto;
    flex-direction: row;
}
.shield-tag {
    font-size: 0.7rem;
    padding: 0;
    width: auto;
    border-bottom: none;
    color: var(--text-muted);
    font-weight: 600;
}
.node-shield-overall .shield-tag {
    border-bottom: none;
    color: var(--accent);
}
.shield-val {
    padding: 0;
    font-size: 0.95rem;
    font-weight: 700;
}

html { overflow-y: scroll; }

/* === COMPREHENSIVE MOBILE RESPONSIVENESS === */
@media (max-width: 768px) {
    /* Base typography scales */
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.75rem !important; }
    h3 { font-size: 1.25rem !important; }
    .hero-container h2 { font-size: 2rem !important; }

    /* Layout tweaks */
    main {
        padding: 1.5rem 1rem 3rem !important; /* Smaller side margins */
    }
    .registry-container {
        padding: 1rem 1rem 3rem 1rem !important;
    }

    /* Cards & Spacing */
    .method-card, .highlight-box, .guide-card {
        padding: 1.25rem !important;
    }
    .feature-box {
        padding: 1.25rem !important;
        margin-left: 0 !important;
        border-radius: var(--radius-md) !important;
    }

    /* Header Nav Wrapping */
    header {
        margin: 1rem;
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 0.75rem;
        border-radius: var(--radius-md);
        top: 1rem;
    }
    header nav {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        gap: 0.25rem 0.5rem;
    }
    header nav a {
        font-size: 0.85rem;
        padding: 0.4rem 0.75rem;
    }

    /* Search & Filter Bar */
    .search-filter-wrapper {
        flex-direction: column;
        gap: 1rem;
    }
    .filter-group {
        width: 100%;
        display: flex;
        overflow-x: auto;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }
    .filter-label {
        display: none; /* Hide 'Sort by' on tiny screens to save space */
    }
    .filter-btn {
        flex: 1 0 auto; /* Allow scrolling */
        font-size: 0.8rem;
        padding: 0.4rem 0.75rem;
    }

    /* Forms */
    input[type='text'] {
        font-size: 16px; /* Prevents iOS auto-zoom */
    }

    /* Tables */
    .comparison-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    /* Footer */
    footer p {
        flex-direction: column;
        display: flex;
        gap: 0.5rem;
        align-items: center;
    }
    footer span {
        display: none; /* Hide the separator pipe on mobile */
    }
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.site-logo {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 2px 8px rgba(255,106,0,0.4));
    transition: transform 0.3s ease;
}
.site-logo:hover {
    transform: scale(1.05) rotate(-5deg);
}

.header-brand { display: flex; align-items: center; gap: 0.75rem; }
.site-logo { width: 32px; height: 32px; filter: drop-shadow(0 2px 8px rgba(255,106,0,0.4)); transition: transform 0.3s ease; }
.site-logo:hover { transform: scale(1.05) rotate(-5deg); }



/* Copy Protection Global Rule */
body {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Allow selection in input explicitly like the search field */
input, textarea {
    -webkit-user-select: text;
    -khtml-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* Layout Fix for Footer */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1 0 auto;
    width: 100%;
}

footer {
    width: 100%;
    text-align: center;
    padding: 2rem 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Layout Fix for Footer */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1 0 auto;
    width: 100%;
}

footer {
    width: 100%;
    text-align: center;
    padding: 2rem 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}









/* Modal Overlay Fix */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}
.modal-overlay.active {
    display: flex;
}
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    max-width: 90%;
    margin: 1rem;
    animation: modalPop 0.3s ease-out forwards;
}
@keyframes modalPop {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
/* Update modal CSS to enforce fixed positioning properly against flex body */
.modal-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100% !important;
    display: none;
}
.modal-overlay.active {
    display: flex !important;
}