:root {
    --sl-accent: #2563eb;
    --sl-accent2: #0ea5e9;
    --sl-green: #10b981;
    --sl-yellow: #f59e0b;
    --sl-red: #ef4444;
    --sl-purple: #8b5cf6;
    --sl-bg: var(--bg1, #0d1117);
    --sl-bg2: var(--bg2, #161b22);
    --sl-bg3: var(--bg3, #1c2333);
    --sl-line: var(--line, rgba(255,255,255,.08));
    --sl-line2: var(--line2, rgba(255,255,255,.13));
    --sl-t1: var(--t1, #f0f6fc);
    --sl-t2: var(--t2, #c9d1d9);
    --sl-t3: var(--t3, #8b949e);
    --sl-r: 10px;
    --sl-r-sm: 7px;
    --sl-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --sl-shadow: 0 4px 24px rgba(0,0,0,.35);
    --sl-shadow-sm: 0 2px 10px rgba(0,0,0,.25);
}

/* ═══════════════════════════════════════════════
   PAGE SHELL
═══════════════════════════════════════════════ */
.vi-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: 28px 20px 80px;
}

/* ═══════════════════════════════════════════════
   BALANCE HERO
═══════════════════════════════════════════════ */
.vi-hero {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(16,185,129,.2);
    background: linear-gradient(135deg, rgba(16,185,129,.1) 0%, rgba(6,182,212,.06) 50%, rgba(37,99,235,.05) 100%);
    padding: 26px 28px;
    margin-bottom: 24px;
    box-shadow: var(--sl-shadow);
    position: relative;
}

    /* Watermark */
    .vi-hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: repeating-linear-gradient( -48deg, transparent, transparent 22px, rgba(255,255,255,.015) 22px, rgba(255,255,255,.015) 44px );
        pointer-events: none;
    }

.vi-hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.vi-hero-left {
}

.vi-hero-lbl {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--sl-t3);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.vi-hero-amount {
    font-size: 42px;
    font-weight: 700;
    font-family: var(--sl-mono);
    color: var(--sl-green);
    line-height: 1;
    letter-spacing: -1px;
}

.vi-hero-unit {
    font-size: 16px;
    font-weight: 500;
    color: rgba(16,185,129,.6);
    margin-left: 4px;
}

.vi-hero-sub {
    font-size: 12px;
    color: var(--sl-t3);
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.vi-hero-right {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
    flex-shrink: 0;
}

.vi-info-pill {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

    .vi-info-pill.commission {
        background: rgba(245,158,11,.1);
        border: 1px solid rgba(245,158,11,.2);
        color: var(--sl-yellow);
    }

    .vi-info-pill.receive {
        background: rgba(16,185,129,.1);
        border: 1px solid rgba(16,185,129,.2);
        color: var(--sl-green);
    }

/* ═══════════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════════ */
.vi-layout {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 20px;
    align-items: start;
}

/* ═══════════════════════════════════════════════
   CARDS
═══════════════════════════════════════════════ */
.sl-card {
    background: var(--sl-bg2);
    border: 1px solid var(--sl-line);
    border-radius: var(--sl-r);
    overflow: hidden;
    margin-bottom: 16px;
    box-shadow: var(--sl-shadow-sm);
    transition: border-color .2s;
}

    .sl-card:last-child {
        margin-bottom: 0;
    }

    .sl-card:hover {
        border-color: var(--sl-line2);
    }

.sl-card-hd {
    padding: 13px 18px;
    border-bottom: 1px solid var(--sl-line);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sl-card-hd-ico {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
}

.ico-green {
    background: rgba(16,185,129,.14);
    color: var(--sl-green);
}

.ico-yellow {
    background: rgba(245,158,11,.14);
    color: var(--sl-yellow);
}

.ico-blue {
    background: rgba(37,99,235,.15);
    color: var(--sl-accent2);
}

.sl-card-title {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--sl-t1);
}

.sl-card-sub {
    font-size: 11px;
    color: var(--sl-t3);
    margin-top: 1px;
}

.sl-card-bd {
    padding: 18px;
}

.sl-card-ft {
    padding: 12px 18px;
    border-top: 1px solid var(--sl-line);
    background: rgba(255,255,255,.01);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

/* ═══════════════════════════════════════════════
   FORM ELEMENTS (đồng bộ với DangBan)
═══════════════════════════════════════════════ */
.pf-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

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

.pf-label {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--sl-t2);
    display: flex;
    align-items: center;
    gap: 5px;
}

.pf-input {
    background: var(--sl-bg3);
    border: 1px solid var(--sl-line);
    border-radius: var(--sl-r-sm);
    padding: 9px 12px;
    color: var(--sl-t1);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: border-color .18s, box-shadow .18s, background .18s;
    width: 100%;
    box-sizing: border-box;
}

    .pf-input:focus {
        border-color: var(--sl-accent);
        box-shadow: 0 0 0 3px rgba(37,99,235,.14);
        background: var(--sl-bg2);
    }

    .pf-input::placeholder {
        color: var(--sl-t3);
    }

    .pf-input:disabled {
        opacity: .45;
        cursor: not-allowed;
        background: var(--sl-bg);
    }

.pf-hint {
    font-size: 11px;
    color: var(--sl-t3);
}

.pf-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

/* Divider */
.sl-divider {
    border: none;
    border-top: 1px solid var(--sl-line);
    margin: 16px 0;
}

/* Alert */
.sl-alert {
    padding: 10px 14px;
    border-radius: var(--sl-r-sm);
    font-size: 12.5px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 16px;
}

    .sl-alert i {
        margin-top: 1px;
        flex-shrink: 0;
    }

.sl-alert-warn {
    background: rgba(245,158,11,.09);
    border: 1px solid rgba(245,158,11,.2);
    color: var(--sl-yellow);
}

/* Receive preview */
.receive-preview {
    margin-top: 6px;
    padding: 8px 12px;
    background: rgba(16,185,129,.06);
    border: 1px solid rgba(16,185,129,.14);
    border-radius: var(--sl-r-sm);
    font-size: 12px;
    color: var(--sl-t3);
    display: flex;
    align-items: center;
    gap: 6px;
}

    .receive-preview strong {
        color: var(--sl-green);
        font-family: var(--sl-mono);
    }

/* ═══════════════════════════════════════════════
   HISTORY TABLE
═══════════════════════════════════════════════ */
.vi-history-table {
    width: 100%;
    border-collapse: collapse;
}

    .vi-history-table th {
        padding: 9px 14px;
        font-size: 10px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: .5px;
        color: var(--sl-t3);
        text-align: left;
        background: var(--sl-bg3);
        border-bottom: 1px solid var(--sl-line);
    }

    .vi-history-table td {
        padding: 11px 14px;
        font-size: 12.5px;
        color: var(--sl-t2);
        border-bottom: 1px solid var(--sl-line);
        vertical-align: middle;
    }

    .vi-history-table tr:last-child td {
        border-bottom: none;
    }

    .vi-history-table tr:hover td {
        background: rgba(255,255,255,.02);
    }

/* Status badges */
.sl-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-ok {
    background: rgba(16,185,129,.12);
    color: var(--sl-green);
    border: 1px solid rgba(16,185,129,.22);
}

.badge-wait {
    background: rgba(245,158,11,.12);
    color: var(--sl-yellow);
    border: 1px solid rgba(245,158,11,.22);
}

.badge-reject {
    background: rgba(239,68,68,.12);
    color: var(--sl-red);
    border: 1px solid rgba(239,68,68,.22);
}

/* Empty state */
.vi-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--sl-t3);
}

    .vi-empty i {
        font-size: 32px;
        opacity: .35;
        display: block;
        margin-bottom: 10px;
    }

    .vi-empty p {
        font-size: 13px;
    }

/* ═══════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 960px)
═══════════════════════════════════════════════ */
@media (max-width: 960px) {
    .vi-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 600px)
═══════════════════════════════════════════════ */
@media (max-width: 600px) {
    .vi-page {
        padding: 14px 12px 60px;
    }

    /* Hero stack */
    .vi-hero {
        padding: 20px 18px;
    }

    .vi-hero-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .vi-hero-amount {
        font-size: 32px;
    }

    .vi-hero-unit {
        font-size: 14px;
    }

    .vi-hero-right {
        flex-direction: row;
        align-items: flex-start;
        flex-wrap: wrap;
        gap: 8px;
        width: 100%;
    }

    .vi-info-pill {
        flex: 1;
        justify-content: center;
        font-size: 11.5px;
    }

    /* Cards */
    .sl-card-hd {
        padding: 11px 14px;
    }

    .sl-card-bd {
        padding: 14px;
    }

    .sl-card-ft {
        padding: 10px 14px;
    }

    /* Form grid: 1 col */
    .pf-grid-2 {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .sl-card-ft .btn {
        flex: 1;
        justify-content: center;
    }

    /* History table: hide bank & date col, show as sub-row */
    .vi-history-table th:nth-child(2),
    .vi-history-table td:nth-child(2) {
        display: none;
    }
}

@media (max-width: 400px) {
    .vi-hero-amount {
        font-size: 26px;
    }
}