:root {
    --alice: #0969da;
    --alice-light: #58a6ff;
    --alice-bg: rgba(9, 105, 218, 0.06);
    --alice-bg-solid: #0d1d30;
    --charlie: #1a7f37;
    --charlie-light: #3fb950;
    --charlie-bg: rgba(26, 127, 55, 0.06);
    --charlie-bg-solid: #0d2615;
    --mint: #9a6700;
    --mint-light: #d29922;
    --mint-bg: rgba(154, 103, 0, 0.06);
    --bg: #0d1117;
    --surface: #161b22;
    --surface2: #21262d;
    --surface3: #292e36;
    --border: #30363d;
    --border-light: #3d444d;
    --text: #e6edf3;
    --text-sec: #c9d1d9;
    --muted: #8b949e;
    --success: #3fb950;
    --warning: #d29922;
    --error: #f85149;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-sm: 6px;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    --denom-64: #1a5276;
    --denom-32: #2471a3;
    --denom-16: #17a589;
    --denom-8: #27ae60;
    --denom-4: #d4ac0d;
    --denom-2: #e67e22;
    --denom-1: #e74c3c;
    --lock-bg: linear-gradient(135deg, #1a1e24 0%, #14171c 50%, #1a1e24 100%);
    --lock-border: #3d444d;
    --lock-accent: #d29922;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.5;
    min-height: 100vh;
    padding: 16px;
}

/* ─── Slim Header ───────────────────────────────────────────── */

.header-slim {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 8px;
    height: 36px;
}

.header-slim-left {
    display: flex;
    align-items: center;
}

.header-slim-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.header-slim-sep {
    color: var(--border);
    margin: 0 6px;
}

.header-slim-sub {
    font-size: 11px;
    color: var(--muted);
}

.header-slim-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-slim-link {
    font-size: 11px;
    font-weight: 600;
    color: var(--mint-light);
    text-decoration: none;
    transition: color 0.15s ease;
}

.header-slim-link:hover {
    color: var(--text);
    text-decoration: underline;
}

.header-slim-mint {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--mint-light);
}

button {
    background: var(--surface2);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 7px 14px;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

button:hover {
    background: var(--border);
    border-color: var(--border-light);
}

button:active {
    transform: translateY(1px);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

main {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
}

section h2 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ─── Inline Flow Diagram ──────────────────────────────────────── */

.flow-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 8px 16px 0;
}

.flow-inline-node {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    transition: box-shadow 0.3s ease;
}

.fi-alice { background: var(--alice); color: #fff; }
.fi-charlie { background: var(--charlie); color: #fff; }
.fi-mint { background: transparent; border: 2px solid var(--mint-light); color: var(--mint-light); font-size: 13px; }
.fi-lock {
    background: transparent;
    border: 2px solid var(--lock-accent);
    border-radius: 4px;
    color: var(--lock-accent);
    font-size: 9px;
    font-family: var(--font-mono);
}

.fi-lock-text {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.flow-inline-arrow {
    width: 40px;
    height: 2px;
    background: var(--border);
    position: relative;
    margin: 0 2px;
}

.flow-inline-arrow::after {
    content: "";
    position: absolute;
    right: -3px;
    top: -3px;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 6px solid var(--border);
}

.flow-inline-text {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 8px;
    color: var(--muted);
    font-family: var(--font-mono);
    white-space: nowrap;
}

.flow-inline-arrow.active {
    background: var(--mint-light);
}

.flow-inline-arrow.active::after {
    border-left-color: var(--mint-light);
}

.flow-inline-arrow.active .flow-inline-text {
    color: var(--mint-light);
}

.flow-inline-node.active {
    box-shadow: 0 0 10px rgba(210, 153, 34, 0.5);
}

/* ─── Three-Column Layout ───────────────────────────────────── */

.three-column {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 12px;
    align-items: start;
}

/* ─── Wallet Panels ─────────────────────────────────────────── */

.wallet-panel {
    padding: 0;
    overflow: hidden;
}

.wallet-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.wallet-alice .wallet-header {
    background: var(--alice-bg-solid);
}

.wallet-charlie .wallet-header {
    background: var(--charlie-bg-solid);
}

.wallet-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.avatar-alice {
    background: var(--alice);
    color: #fff;
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.3);
}

.avatar-charlie {
    background: var(--charlie);
    color: #fff;
    box-shadow: 0 0 0 2px rgba(63, 185, 80, 0.3);
}

.wallet-title h2 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 0;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text);
}

.wallet-role {
    font-size: 11px;
    color: var(--muted);
}

.wallet-body {
    padding: 14px 16px;
}

.wallet-section {
    margin-bottom: 14px;
}

.wallet-section:last-child {
    margin-bottom: 0;
}

.wallet-section h3 {
    font-size: 11px;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.value-group {
    margin-bottom: 6px;
}

.value-group:last-child {
    margin-bottom: 0;
}

.value-group label {
    display: block;
    color: var(--muted);
    font-size: 11px;
    margin-bottom: 2px;
}

.value-row {
    display: flex;
    gap: 16px;
}

.value-row .value-group {
    flex: 1;
}

.mono {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-sec);
    line-height: 1.5;
}

.mono-trunc {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.activity-log {
    font-size: 11px;
    line-height: 1.8;
    max-height: 120px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

#alice-pubkey,
#alice-channel-id,
#alice-balance,
#alice-proof-count,
#alice-proof-total,
#alice-activity-log,
#charlie-pubkey,
#charlie-channel-id,
#charlie-balance,
#charlie-proof-count,
#charlie-proof-total,
#charlie-activity-log,
#debug-dump {
    white-space: pre-wrap;
    word-break: break-all;
}

/* ─── Proof Tokens Grid ─────────────────────────────────────── */

.proofs-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 6px;
}

.proof-token {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 26px;
    height: 22px;
    padding: 0 5px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.proof-token-64 { background: var(--denom-64); }
.proof-token-32 { background: var(--denom-32); }
.proof-token-16 { background: var(--denom-16); }
.proof-token-8  { background: var(--denom-8); }
.proof-token-4  { background: var(--denom-4); color: #000; }
.proof-token-2  { background: var(--denom-2); }
.proof-token-1  { background: var(--denom-1); }

/* ─── Channel Center Panel ──────────────────────────────────── */

.channel-center {
    padding: 0;
    overflow: hidden;
}

.center-status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--surface2);
    border-bottom: 1px solid var(--border);
}

.channel-state-badge {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    background: var(--surface3);
    color: var(--muted);
    letter-spacing: 0.5px;
    border: 1px solid var(--border);
}

.channel-state-badge.state-init { color: var(--mint-light); border-color: rgba(210, 153, 34, 0.3); background: rgba(154, 103, 0, 0.1); }
.channel-state-badge.state-funded { color: var(--alice-light); border-color: rgba(88, 166, 255, 0.3); background: rgba(9, 105, 218, 0.1); }
.channel-state-badge.state-closing { color: var(--warning); border-color: rgba(210, 153, 34, 0.3); background: rgba(154, 103, 0, 0.1); }
.channel-state-badge.state-closed { color: var(--success); border-color: rgba(63, 185, 80, 0.3); background: rgba(26, 127, 55, 0.1); }

.channel-capacity-label {
    font-size: 12px;
    color: var(--muted);
    font-family: var(--font-mono);
}

/* ─── Step Dots ──────────────────────────────────────────────── */

.step-dots {
    display: flex;
    justify-content: center;
    gap: 0;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
}

.step-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
}

.step-dot::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--surface3);
    border: 2px solid var(--border);
    margin-bottom: 4px;
    transition: all 0.3s ease;
}

.step-dot span {
    font-size: 10px;
    color: var(--muted);
}

.step-dot::after {
    content: "";
    position: absolute;
    top: 4px;
    left: 50%;
    width: 100%;
    height: 2px;
    background: var(--border);
    z-index: 0;
}

.step-dot:last-child::after {
    display: none;
}

.step-dot.completed::before {
    background: var(--charlie-light);
    border-color: var(--charlie-light);
    box-shadow: 0 0 6px rgba(63, 185, 80, 0.4);
}

.step-dot.completed span {
    color: var(--charlie-light);
}

.step-dot.active::before {
    background: var(--alice-light);
    border-color: var(--alice-light);
    box-shadow: 0 0 6px rgba(88, 166, 255, 0.4);
    transform: scale(1.3);
}

.step-dot.active span {
    color: var(--alice-light);
}

/* ─── Lock Container ───────────────────────────────────────── */

.lock-container {
    margin: 16px;
    border-radius: var(--radius-lg);
    background: var(--lock-bg);
    border: 2px solid var(--lock-border);
    overflow: hidden;
    position: relative;
}

.lock-container::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 49.5%,
            rgba(61, 68, 77, 0.12) 49.5%,
            rgba(61, 68, 77, 0.12) 50.5%,
            transparent 50.5%,
            transparent 100%
        );
    pointer-events: none;
}

.lock-header-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(61, 68, 77, 0.3);
    border-bottom: 1px solid var(--lock-border);
}

.lock-icon-pair {
    display: flex;
    gap: 3px;
    align-items: center;
}

.lock-icon-lock {
    width: 14px;
    height: 12px;
    border: 2px solid var(--lock-accent);
    border-radius: 2px;
    position: relative;
}

.lock-icon-lock::before {
    content: "";
    position: absolute;
    top: -6px;
    left: 2px;
    width: 6px;
    height: 6px;
    border: 2px solid var(--lock-accent);
    border-bottom: none;
    border-radius: 3px 3px 0 0;
}

.lock-icon-clock {
    width: 12px;
    height: 12px;
    border: 2px solid var(--muted);
    border-radius: 50%;
    position: relative;
}

.lock-icon-clock::before {
    content: "";
    position: absolute;
    top: 2px;
    left: 4px;
    width: 1.5px;
    height: 3px;
    background: var(--muted);
    transform-origin: bottom center;
    transform: rotate(0deg);
}

.lock-icon-clock::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 4px;
    width: 1.5px;
    height: 2px;
    background: var(--muted);
    transform-origin: bottom center;
    transform: rotate(60deg);
}

.lock-title-text {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--lock-accent);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.lock-spending-condition {
    padding: 6px 16px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    text-align: center;
    background: rgba(61, 68, 77, 0.15);
    border-bottom: 1px solid var(--lock-border);
    font-style: italic;
}

.lock-body {
    padding: 16px;
    position: relative;
    z-index: 1;
}

.lock-tokens {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    min-height: 32px;
    margin-bottom: 14px;
}

.lock-empty-msg {
    font-size: 12px;
    color: var(--muted);
    font-style: italic;
    text-align: center;
    width: 100%;
    padding: 8px 0;
}

.lock-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 26px;
    padding: 0 8px;
    border-radius: 5px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    border: 2px solid transparent;
    position: relative;
    transition: border-color 0.5s ease, box-shadow 0.5s ease;
}

.lock-chip-64 { background: var(--denom-64); color: #fff; }
.lock-chip-32 { background: var(--denom-32); color: #fff; }
.lock-chip-16 { background: var(--denom-16); color: #fff; }
.lock-chip-8  { background: var(--denom-8); color: #fff; }
.lock-chip-4  { background: var(--denom-4); color: #000; }
.lock-chip-2  { background: var(--denom-2); color: #fff; }
.lock-chip-1 { background: var(--denom-1); color: #fff; }

.lock-chip-group {
    margin-bottom: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.lock-chip-group:last-child {
    margin-bottom: 0;
}

.lock-group-charlie {
    background: rgba(26, 127, 55, 0.08);
    border-color: rgba(63, 185, 80, 0.25);
}

.lock-group-alice {
    background: rgba(9, 105, 218, 0.08);
    border-color: rgba(88, 166, 255, 0.25);
}

.lock-group-label {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.lock-group-charlie .lock-group-label { color: var(--charlie-light); }
.lock-group-alice .lock-group-label { color: var(--alice-light); }

.lock-group-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.lock-chip-claimed-charlie {
    box-shadow: 0 0 10px rgba(63, 185, 80, 0.4);
}

.lock-chip-claimed-alice {
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.3);
}

.lock-split-bar {
    height: 24px;
    display: flex;
    border-radius: 5px;
    overflow: hidden;
    background: var(--surface3);
    border: 1px solid var(--border);
}

.lock-split-alice {
    background: linear-gradient(90deg, var(--alice), #0a84e0);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 0;
}

.lock-split-charlie {
    background: linear-gradient(90deg, #1a9f47, var(--charlie-light));
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 0;
}

.lock-split-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
}

.lock-label-alice {
    color: var(--alice-light);
    font-weight: 600;
}

.lock-label-charlie {
    color: var(--charlie-light);
    font-weight: 600;
}

.lock-footer {
    padding: 8px 16px;
    background: rgba(61, 68, 77, 0.2);
    border-top: 1px solid var(--lock-border);
    font-size: 11px;
    color: var(--muted);
    text-align: center;
    font-style: italic;
    position: relative;
    z-index: 1;
}

/* ─── Signature Card ────────────────────────────────────────── */

.signature-card {
    margin: 0 16px 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface2);
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.active-sig {
    border-color: var(--mint-light);
    box-shadow: 0 0 20px rgba(210, 153, 34, 0.15), inset 0 0 30px rgba(210, 153, 34, 0.03);
}

.sig-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(154, 103, 0, 0.08);
    border-bottom: 1px solid var(--border);
}

.sig-pen-icon {
    width: 14px;
    height: 14px;
    border-bottom: 2px solid var(--mint-light);
    border-right: 2px solid var(--mint-light);
    transform: rotate(45deg);
    position: relative;
}

.sig-pen-icon::before {
    content: "";
    position: absolute;
    bottom: -1px;
    right: -1px;
    width: 4px;
    height: 2px;
    background: var(--mint-light);
    transform: rotate(-45deg);
}

.sig-card-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--mint-light);
}

.sig-only-valid {
    margin-left: auto;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(210, 153, 34, 0.15);
    color: var(--mint-light);
    border: 1px solid rgba(210, 153, 34, 0.3);
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 4px rgba(210, 153, 34, 0.2); }
    50% { box-shadow: 0 0 12px rgba(210, 153, 34, 0.4); }
}

.sig-card-body {
    padding: 12px 14px;
}

.sig-empty {
    font-size: 12px;
    color: var(--muted);
    font-style: italic;
}

.sig-split-row {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.sig-split-box {
    flex: 1;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    text-align: center;
}

.sig-split-charlie {
    background: rgba(26, 127, 55, 0.12);
    border: 1px solid rgba(63, 185, 80, 0.25);
}

.sig-split-alice {
    background: rgba(9, 105, 218, 0.12);
    border: 1px solid rgba(88, 166, 255, 0.25);
}

.sig-split-name {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 2px;
}

.sig-split-charlie .sig-split-name { color: var(--charlie-light); }
.sig-split-alice .sig-split-name { color: var(--alice-light); }

.sig-split-amount {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
}

.sig-split-charlie .sig-split-amount { color: var(--charlie-light); }
.sig-split-alice .sig-split-amount { color: var(--alice-light); }

.sig-split-unit {
    font-size: 11px;
    font-weight: 400;
}

.sig-fee-note {
    font-size: 9px;
    color: var(--muted);
    font-family: var(--font-mono);
    margin-top: 2px;
}

.sig-detail-row {
    margin-bottom: 6px;
}

.sig-detail-row:last-child {
    margin-bottom: 0;
}

.sig-detail-label {
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 2px;
}

.sig-detail-value {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-sec);
    background: var(--surface);
    padding: 4px 8px;
    border-radius: 4px;
    word-break: break-all;
    border: 1px solid var(--border);
}

.sig-verified {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: rgba(63, 185, 80, 0.1);
    border: 1px solid rgba(63, 185, 80, 0.3);
    border-radius: 4px;
    color: var(--success);
    font-size: 11px;
    font-weight: 600;
    margin-top: 6px;
}

.sig-verified::before {
    content: "\2713";
    font-size: 12px;
}

@keyframes sigAppear {
    0% { opacity: 0; transform: translateY(-8px); }
    100% { opacity: 1; transform: translateY(0); }
}

.signature-card.sig-animate {
    animation: sigAppear 0.4s ease-out;
}

/* ─── Signature History ─────────────────────────────────────── */

.signature-history {
    margin: 0 16px 12px;
}

.sig-history-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 6px;
}

.sig-history-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 120px;
    overflow-y: auto;
}

.sig-history-empty {
    font-size: 11px;
    color: var(--muted);
    font-style: italic;
}

.sig-history-card {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--surface2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    position: relative;
    animation: historySlide 0.3s ease-out;
}

.sig-history-card::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    top: 50%;
    height: 1px;
    background: var(--muted);
}

.sig-history-label {
    font-size: 9px;
    font-weight: 700;
    color: var(--error);
    letter-spacing: 0.3px;
    text-transform: uppercase;
    flex-shrink: 0;
}

.sig-history-text {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes historySlide {
    from { opacity: 0; transform: translateX(-10px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ─── Education Box ──────────────────────────────────────────── */

.education-box {
    display: flex;
    gap: 10px;
    margin: 0 16px 12px;
    padding: 12px 14px;
    background: rgba(9, 105, 218, 0.06);
    border: 1px solid rgba(88, 166, 255, 0.15);
    border-radius: var(--radius);
}

.edu-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--alice-light);
    position: relative;
    margin-top: 1px;
}

.edu-icon::before {
    content: "i";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: 700;
    color: var(--alice-light);
    font-style: italic;
}

.edu-content {
    flex: 1;
}

.edu-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--alice-light);
    margin-bottom: 4px;
}

.edu-content p {
    font-size: 12px;
    color: var(--text-sec);
    line-height: 1.6;
}

/* ─── Mint Details ──────────────────────────────────────────── */

.mint-details {
    margin: 0 16px 12px;
}

.mint-details summary {
    font-size: 11px;
    color: var(--muted);
    cursor: pointer;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 6px 0;
}

.mint-details summary:hover {
    color: var(--text-sec);
}

.mint-timeline {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 6px;
}

.mint-empty {
    font-size: 11px;
    color: var(--muted);
    font-style: italic;
}

.mint-request-card {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--surface2);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10px;
    border: 1px solid var(--border);
    animation: mintCardSlide 0.3s ease-out;
}

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

.mint-method {
    font-weight: 700;
    min-width: 32px;
}

.mint-method.get  { color: var(--alice-light); }
.mint-method.post { color: var(--mint-light); }

.mint-path {
    color: var(--text-sec);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mint-status {
    font-weight: 600;
    min-width: 24px;
    text-align: right;
}

.mint-status.s200 { color: var(--success); }
.mint-status.s-error { color: var(--error); }

/* ─── Payment Controls ──────────────────────────────────────── */

#payment-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.payment-controls-inner {
    display: flex;
    align-items: center;
    gap: 20px;
}

.payment-slider-group {
    flex: 1;
    max-width: 300px;
}

.payment-slider-group label {
    display: block;
    font-size: 12px;
    color: var(--text-sec);
    margin-bottom: 6px;
}

.payment-slider-group label strong {
    color: var(--mint-light);
    font-family: var(--font-mono);
    font-size: 14px;
}

.payment-slider-group input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--surface3);
    border-radius: 3px;
    outline: none;
    border: 1px solid var(--border);
}

.payment-slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--mint-light);
    cursor: pointer;
    border: 2px solid var(--bg);
    box-shadow: 0 0 6px rgba(210, 153, 34, 0.4);
}

.payment-slider-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--mint-light);
    cursor: pointer;
    border: 2px solid var(--bg);
    box-shadow: 0 0 6px rgba(210, 153, 34, 0.4);
}

.payment-slider-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 9px;
    color: var(--muted);
    font-family: var(--font-mono);
    margin-top: 2px;
}

.payment-preview {
    display: flex;
    gap: 16px;
}

.preview-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.preview-label {
    font-size: 11px;
}

.preview-charlie { color: var(--charlie-light); }
.preview-alice { color: var(--alice-light); }

.preview-value {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sec);
}

#send-custom-payment-btn {
    background: rgba(154, 103, 0, 0.15);
    border-color: rgba(210, 153, 34, 0.3);
    color: var(--mint-light);
    font-weight: 600;
}

#send-custom-payment-btn:hover:not(:disabled) {
    background: rgba(154, 103, 0, 0.25);
}

/* ─── Denomination Preview ─────────────────────────────────── */

.denom-preview {
    padding: 10px 12px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 2px;
}

.denom-preview-title {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 8px;
}

.denom-preview-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-bottom: 6px;
}

.denom-preview-row:last-child {
    margin-bottom: 0;
}

.denom-row-charlie {
    background: rgba(26, 127, 55, 0.06);
    border-color: rgba(63, 185, 80, 0.2);
}

.denom-row-alice {
    background: rgba(9, 105, 218, 0.06);
    border-color: rgba(88, 166, 255, 0.2);
}

.denom-row-header {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.denom-row-name {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.denom-row-charlie .denom-row-name { color: var(--charlie-light); }
.denom-row-alice .denom-row-name { color: var(--alice-light); }

.denom-row-amount {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-sec);
}

.denom-row-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    align-items: center;
}

.denom-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 18px;
    padding: 0 4px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 700;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.denom-chip:hover {
    transform: scale(1.15);
    z-index: 1;
}

.denom-chip-64 { background: var(--denom-64); }
.denom-chip-32 { background: var(--denom-32); }
.denom-chip-16 { background: var(--denom-16); }
.denom-chip-8  { background: var(--denom-8); }
.denom-chip-4  { background: var(--denom-4); color: #000; }
.denom-chip-2  { background: var(--denom-2); }
.denom-chip-1  { background: var(--denom-1); }

.denom-empty {
    font-size: 11px;
    color: var(--muted);
    font-style: italic;
}

/* ─── Lifecycle Controls ────────────────────────────────────── */

#lifecycle-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 8px;
}

/* ─── Debug Panel ───────────────────────────────────────────── */

#debug-panel {
    margin-top: 4px;
}

#debug-panel h2 {
    margin-bottom: 8px;
}

#debug-dump {
    max-height: 200px;
    overflow-y: auto;
    background: var(--surface2);
    padding: 12px;
    border-radius: var(--radius);
    font-size: 11px;
}

/* ─── Wallet Panel Borders ──────────────────────────────────── */

#alice {
    border-left: 3px solid var(--alice-light);
}

#charlie {
    border-right: 3px solid var(--charlie-light);
}

/* ─── Responsive ────────────────────────────────────────────── */

@media (max-width: 1000px) {
    .three-column {
        grid-template-columns: 1fr;
    }

    .flow-inline-text {
        display: none;
    }

    .payment-controls-inner {
        flex-direction: column;
        align-items: stretch;
    }

    .payment-slider-group {
        max-width: none;
    }

    .payment-preview {
        justify-content: center;
    }
}