body {
    background: #f5f7fb;
    color: #1f2937;
}

.app-layout {
    display: flex;
    min-height: 100vh;
}

.app-sidebar {
    width: 260px;
    background: #111827;
    color: #fff;
    padding: 24px 16px;
}

.mobile-topbar {
    display: none;
    align-items: center;
    justify-content: space-between;
    background: #111827;
    color: #fff;
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 1050;
}

.mobile-brand {
    font-weight: 700;
}

.brand-logo {
    height: 52px;
    width: auto;
    display: block;
}

@media (min-width: 992px) {
    .brand-logo {
        height: 72px;
    }
}

.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.app-sidebar .nav-link {
    color: #cbd5f5;
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
}

.app-sidebar .nav-link.active,
.app-sidebar .nav-link:hover {
    background: #1f2937;
    color: #fff;
}

.sidebar-lang {
    color: #cbd5f5;
    font-size: 0.9rem;
    margin-bottom: 16px;
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.sidebar-lang a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}

.app-content {
    flex: 1;
}

.card {
    border: 0;
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
}

@media (max-width: 991px) {
    .app-layout {
        flex-direction: column;
    }

    .mobile-topbar {
        display: flex;
    }

    .app-sidebar {
        width: 100%;
        padding: 16px;
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        z-index: 1040;
    }

    body.sidebar-open .app-sidebar {
        transform: translateX(0);
    }

    .sidebar-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.45);
        z-index: 1030;
    }

    body.sidebar-open .sidebar-backdrop {
        display: block;
    }

    .app-content {
        padding-top: 56px;
    }

    .app-sidebar .nav {
        flex-direction: column;
        gap: 4px;
    }

    .app-sidebar .nav-item {
        flex: 1 1 auto;
        min-width: 0;
    }

    .app-sidebar .nav-link {
        padding: 10px 12px;
        text-align: left;
    }

    .container-fluid {
        padding-left: 12px;
        padding-right: 12px;
    }
}

@media (max-width: 576px) {
    .sidebar-brand {
        text-align: center;
    }

    .table-responsive {
        font-size: 0.9rem;
    }
}

.table thead th {
    color: #475569;
    font-weight: 600;
}

canvas {
    max-width: 100%;
    height: auto !important;
}

.card .table-responsive {
    margin: 0;
}

@media (min-width: 1400px) {
    .container-fluid {
        max-width: 1400px;
    }
}

.form-control, .form-select {
    border-radius: 8px;
}

.badge-status {
    padding: 6px 12px;
    border-radius: 999px;
}

.sidebar-user {
    color: #e2e8f0;
}

.sidebar-user .nav-link {
    padding: 8px 12px;
    border-radius: 8px;
    color: #cbd5f5;
}

.sidebar-user .nav-link:hover {
    background: #1f2937;
    color: #fff;
}

.auth-body {
    background: #0b1020;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-wrapper {
    width: min(420px, 92vw);
}

.auth-card {
    border: 0;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.auth-logo {
    max-width: 180px;
    height: auto;
}

.auth-note {
    font-size: 0.85rem;
    color: #6b7280;
    text-align: center;
}

.binary-demo {
    border: 0;
    overflow: hidden;
}

.binary-demo-header {
    background: #5b79c8;
    color: #0b1020;
    font-weight: 700;
    text-align: center;
    padding: 10px 16px;
    letter-spacing: 0.5px;
}

.binary-demo-canvas {
    position: relative;
    height: 380px;
    background: radial-gradient(circle at center, rgba(255, 95, 175, 0.45) 0%, rgba(18, 20, 38, 0.9) 45%, #0b0f1a 100%);
    color: #fff;
    display: block;
}

.binary-demo-canvas::after {
    content: '';
    position: absolute;
    inset: 18% 20% 18% 20%;
    border-radius: 50%;
    border: 2px solid rgba(143, 125, 255, 0.25);
    box-shadow: 0 0 60px rgba(98, 90, 240, 0.35);
    pointer-events: none;
}

.binary-demo-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    stroke: rgba(120, 220, 255, 0.7);
    stroke-width: 2;
}

.binary-demo-lines line {
    stroke-linecap: round;
}

.binary-demo-center,
.binary-demo-starter-left,
.binary-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}

.binary-demo-center {
    top: 28%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.binary-demo-starter-left {
    top: 34%;
    left: 12%;
    transform: translate(-50%, -50%);
    align-items: flex-start;
    text-align: left;
    gap: 8px;
}

.binary-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #4d5ba6;
    display: grid;
    place-items: center;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
    border: 3px solid rgba(255, 255, 255, 0.35);
    font-size: 2rem;
}

.binary-avatar.small {
    width: 46px;
    height: 46px;
    font-size: 1.4rem;
}

.binary-center-label {
    font-weight: 800;
    font-size: 1.6rem;
    letter-spacing: 1px;
    color: #ffb347;
}

.binary-starter-title {
    font-weight: 700;
    color: #ffb347;
}

.binary-starter-amount {
    font-weight: 800;
    font-size: 1.1rem;
    color: #ffb347;
}

.binary-node {
    min-width: 130px;
}

.node-bronze {
    left: 20%;
    top: 68%;
    transform: translate(-50%, -50%);
}

.node-silver {
    left: 38%;
    top: 78%;
    transform: translate(-50%, -50%);
}

.node-gold {
    left: 62%;
    top: 78%;
    transform: translate(-50%, -50%);
}

.node-diamond {
    left: 82%;
    top: 68%;
    transform: translate(-50%, -50%);
}

.binary-node-title {
    font-weight: 800;
    letter-spacing: 0.6px;
}

.binary-node-amount {
    font-weight: 700;
}

.bronze {
    color: #f6a04d;
}

.silver {
    color: #e2e8f0;
}

.gold {
    color: #f7c948;
}

.diamond {
    color: #4ade80;
}

@media (max-width: 991px) {
    .binary-demo-canvas {
        height: 460px;
    }
}

@media (max-width: 768px) {
    .binary-demo-canvas {
        height: auto;
        padding: 24px 16px 32px;
        display: flex;
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .binary-demo-lines,
    .binary-demo-canvas::after {
        display: none;
    }

    .binary-demo-center,
    .binary-demo-starter-left,
    .binary-node {
        position: static;
        transform: none;
    }

    .binary-demo-starter-left {
        align-items: center;
        text-align: center;
    }
}

.member-register-card {
    border: 0;
    overflow: hidden;
}

.member-register-card-full {
    margin: -1.5rem -1.5rem 1.5rem;
    border-radius: 0 0 16px 16px;
}


.member-register-header {
    background: #5b79c8;
    color: #0b1020;
    font-weight: 700;
    text-align: center;
    padding: 12px 16px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.member-register-canvas {
    position: relative;
    height: 380px;
    background: radial-gradient(circle at center, rgba(255, 95, 175, 0.45) 0%, rgba(18, 20, 38, 0.9) 45%, #0b0f1a 100%);
    color: #fff;
}

.member-register-canvas::after {
    content: '';
    position: absolute;
    inset: 18% 22% 18% 22%;
    border-radius: 50%;
    border: 2px solid rgba(143, 125, 255, 0.25);
    box-shadow: 0 0 60px rgba(98, 90, 240, 0.35);
    pointer-events: none;
}

.member-register-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    stroke: rgba(120, 220, 255, 0.7);
    stroke-width: 2;
}

.member-register-lines line {
    stroke-linecap: round;
}

.member-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
    min-width: 120px;
}

.member-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #4d5ba6;
    display: grid;
    place-items: center;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
    border: 3px solid rgba(255, 255, 255, 0.35);
    font-size: 2rem;
}

.member-avatar.small {
    width: 46px;
    height: 46px;
    font-size: 1.4rem;
}

.member-node-title {
    font-weight: 800;
    letter-spacing: 0.6px;
}

.member-node-amount {
    font-weight: 700;
}

.member-node-center {
    top: 26%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.member-node-sponsor {
    top: 24%;
    left: 16%;
    transform: translate(-50%, -50%);
}

.member-node-upline {
    top: 24%;
    left: 84%;
    transform: translate(-50%, -50%);
}

.member-leg-chip {
    background: rgba(255, 255, 255, 0.12);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
}

.member-package-row {
    position: absolute;
    left: 50%;
    top: 70%;
    transform: translateX(-50%);
    width: min(90%, 900px);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.member-node-package {
    position: static;
    min-width: 0;
}

.member-node-title.starter {
    color: #ffb347;
}

.member-node-title.sponsor {
    color: #ffb347;
}

.member-node-title.upline {
    color: #a5b4fc;
}

.member-node-package.package-bronze .member-node-title,
.member-node-package.package-bronze .member-node-amount {
    color: #f6a04d;
}

.member-node-package.package-silver .member-node-title,
.member-node-package.package-silver .member-node-amount {
    color: #e2e8f0;
}

.member-node-package.package-gold .member-node-title,
.member-node-package.package-gold .member-node-amount {
    color: #f7c948;
}

.member-node-package.package-diamond .member-node-title,
.member-node-package.package-diamond .member-node-amount {
    color: #4ade80;
}

@media (max-width: 991px) {
    .member-register-canvas {
        height: 420px;
    }
}

@media (max-width: 768px) {
    .member-register-canvas {
        height: auto;
        padding: 24px 16px 32px;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .member-register-lines,
    .member-register-canvas::after {
        display: none;
    }

    .member-node,
    .member-package-row {
        position: static;
        transform: none;
    }

    .member-node-sponsor {
        order: 1;
    }

    .member-node-center {
        order: 2;
    }

    .member-package-row {
        order: 3;
    }

    .member-package-row {
        width: 100%;
        grid-template-columns: repeat(2, 1fr);
        margin-top: 16px;
    }

    .member-node-sponsor,
    .member-node-upline {
        margin-top: 12px;
    }
}