:root {
    --rv-bg: #f4f7fb;
    --rv-ink: #0f172a;
    --rv-muted: #64748b;
    --rv-line: #dbe4f0;
    --rv-card: #ffffff;
    --rv-navy: #08111f;
    --rv-blue: #2563eb;
    --rv-blue-dark: #1d4ed8;
    --rv-cyan: #0ea5e9;
    --rv-green: #16a34a;
    --rv-red: #dc2626;
    --rv-amber: #d97706;
    --rv-shadow: 0 24px 70px rgba(15, 23, 42, .12);
    --rv-radius: 24px;
    --rv-radius-sm: 14px;
    --rv-container: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--rv-ink);
    background: var(--rv-bg);
}

a {
    color: inherit;
    text-decoration: none;
}

.rv-body {
    min-height: 100vh;
}

.rv-container {
    width: min(var(--rv-container), calc(100% - 40px));
    margin: 0 auto;
}

.rv-topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 32px;
    background: rgba(244, 247, 251, .84);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(219, 228, 240, .65);
    transition: box-shadow .2s ease, background .2s ease;
}

.rv-topbar.is-scrolled {
    box-shadow: 0 14px 40px rgba(15, 23, 42, .08);
    background: rgba(255, 255, 255, .92);
}

.rv-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.rv-brand-mark {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    color: #fff;
    font-weight: 900;
    letter-spacing: -.04em;
    background: linear-gradient(135deg, var(--rv-cyan), var(--rv-blue), var(--rv-navy));
    box-shadow: 0 16px 40px rgba(37, 99, 235, .25);
}

.rv-brand strong {
    display: block;
    font-size: 18px;
    letter-spacing: -.03em;
}

.rv-brand small {
    display: block;
    color: var(--rv-muted);
    font-size: 12px;
    margin-top: 1px;
}

.rv-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    color: #334155;
    font-size: 14px;
    font-weight: 650;
}

.rv-nav a:not(.rv-btn):hover {
    color: var(--rv-blue);
}

.rv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 800;
    font-size: 14px;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

.rv-btn:hover {
    transform: translateY(-1px);
}

.rv-btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--rv-blue), var(--rv-cyan));
    box-shadow: 0 18px 45px rgba(37, 99, 235, .24);
}

.rv-btn-primary:hover {
    background: linear-gradient(135deg, var(--rv-blue-dark), var(--rv-blue));
}

.rv-btn-secondary {
    color: #0f172a;
    background: #fff;
    border-color: var(--rv-line);
    box-shadow: 0 12px 30px rgba(15, 23, 42, .08);
}

.rv-btn-ghost {
    color: var(--rv-blue);
    background: rgba(37, 99, 235, .08);
}

.rv-btn-large {
    min-height: 52px;
    padding: 0 24px;
    font-size: 15px;
}

.rv-btn-full {
    width: 100%;
}

.rv-hero {
    position: relative;
    overflow: hidden;
    padding: 86px 0 72px;
    background: radial-gradient(circle at 20% 10%, rgba(14, 165, 233, .22), transparent 30%),
                radial-gradient(circle at 80% 0%, rgba(37, 99, 235, .20), transparent 28%),
                linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
}

.rv-hero-bg {
    position: absolute;
    inset: auto -160px -260px auto;
    width: 620px;
    height: 620px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(37, 99, 235, .12), rgba(14, 165, 233, .08));
    filter: blur(4px);
}

.rv-hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.04fr .96fr;
    gap: 44px;
    align-items: center;
}

.rv-eyebrow,
.rv-section-label {
    color: var(--rv-blue);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.rv-hero h1 {
    margin: 18px 0 20px;
    max-width: 780px;
    font-size: clamp(42px, 6vw, 76px);
    line-height: .94;
    letter-spacing: -.07em;
}

.rv-hero p {
    max-width: 650px;
    color: #475569;
    font-size: 19px;
    line-height: 1.7;
}

.rv-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.rv-trust-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.rv-trust-strip span {
    padding: 8px 12px;
    color: #334155;
    background: rgba(255, 255, 255, .82);
    border: 1px solid var(--rv-line);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.rv-hero-panel {
    padding: 20px;
    border-radius: 30px;
    background: rgba(8, 17, 31, .96);
    color: #fff;
    box-shadow: 0 30px 90px rgba(8, 17, 31, .30);
    border: 1px solid rgba(255, 255, 255, .08);
}

.rv-panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #cbd5e1;
    padding: 4px 4px 18px;
}

.rv-panel-header span {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--rv-green);
    box-shadow: 0 0 0 8px rgba(22, 163, 74, .13);
}

.rv-system-map {
    padding: 24px;
    border-radius: 24px;
    background: linear-gradient(145deg, rgba(30, 41, 59, .85), rgba(15, 23, 42, .95));
    border: 1px solid rgba(255, 255, 255, .07);
}

.rv-node {
    padding: 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .10);
    color: #e2e8f0;
    font-weight: 850;
    text-align: center;
}

.rv-node-main {
    background: linear-gradient(135deg, var(--rv-blue), var(--rv-cyan));
    color: #fff;
    margin-bottom: 18px;
    box-shadow: 0 18px 50px rgba(37, 99, 235, .25);
}

.rv-flow-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.rv-live-card {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding: 16px;
    border-radius: 20px;
    background: #fff;
    color: var(--rv-ink);
}

.rv-live-card small {
    display: block;
    color: var(--rv-muted);
    margin-top: 3px;
}

.rv-pulse {
    width: 14px;
    height: 14px;
    border-radius: 999px;
    background: var(--rv-green);
    box-shadow: 0 0 0 8px rgba(22, 163, 74, .15);
}

.rv-section {
    padding: 84px 0;
}

.rv-section-dark {
    background: var(--rv-navy);
    color: #fff;
}

.rv-section-dark p {
    color: #cbd5e1;
}

.rv-two-col {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 46px;
    align-items: start;
}

.rv-section h2 {
    margin: 12px 0 16px;
    font-size: clamp(32px, 4vw, 52px);
    line-height: 1;
    letter-spacing: -.055em;
}

.rv-section p {
    color: #475569;
    line-height: 1.7;
    font-size: 17px;
}

.rv-card-grid,
.rv-role-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.rv-card,
.rv-role-card {
    padding: 26px;
    border-radius: var(--rv-radius);
    background: var(--rv-card);
    border: 1px solid var(--rv-line);
    box-shadow: 0 12px 35px rgba(15, 23, 42, .06);
}

.rv-card h3,
.rv-role-card h3 {
    margin: 0 0 10px;
    font-size: 19px;
    letter-spacing: -.03em;
}

.rv-card p,
.rv-role-card p {
    margin: 0;
    color: #64748b;
    font-size: 15px;
}

.rv-section-head {
    display: flex;
    justify-content: space-between;
    gap: 28px;
    align-items: end;
    margin-bottom: 30px;
}

.rv-section-head > p {
    max-width: 560px;
    margin: 0;
}

.rv-feature-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.rv-feature {
    padding: 22px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(255, 255, 255, .10);
    color: #e2e8f0;
    font-weight: 850;
}

.rv-platform-section {
    background: linear-gradient(180deg, #fff 0%, #f4f7fb 100%);
}

.rv-stack-list {
    display: grid;
    gap: 12px;
}

.rv-stack-list div {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 18px;
    padding: 20px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid var(--rv-line);
}

.rv-stack-list strong {
    color: var(--rv-blue);
}

.rv-stack-list span {
    color: #475569;
}

.rv-footer {
    padding: 30px 0;
    background: #fff;
    border-top: 1px solid var(--rv-line);
    color: #64748b;
}

.rv-footer .rv-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

/* Auth */
.rv-auth-body {
    min-height: 100vh;
    background: radial-gradient(circle at 15% 10%, rgba(14, 165, 233, .18), transparent 28%),
                radial-gradient(circle at 85% 10%, rgba(37, 99, 235, .20), transparent 28%),
                #f4f7fb;
}

.rv-auth-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(360px, 520px) 1fr;
}

.rv-auth-shell-wide {
    grid-template-columns: minmax(560px, 720px) 1fr;
}

.rv-auth-panel {
    padding: 54px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: #fff;
    border-right: 1px solid var(--rv-line);
}

.rv-auth-brand {
    margin-bottom: 42px;
}

.rv-auth-panel h1 {
    margin: 0 0 12px;
    font-size: 42px;
    line-height: 1;
    letter-spacing: -.055em;
}

.rv-auth-panel > p {
    margin: 0 0 28px;
    color: var(--rv-muted);
    line-height: 1.65;
}

.rv-auth-side {
    display: flex;
    align-items: center;
    padding: 64px;
    color: #fff;
    background: linear-gradient(135deg, rgba(8, 17, 31, .96), rgba(15, 23, 42, .94)),
                radial-gradient(circle at 70% 20%, rgba(14, 165, 233, .25), transparent 30%);
}

.rv-auth-side h2 {
    max-width: 620px;
    font-size: clamp(34px, 4vw, 64px);
    line-height: 1;
    letter-spacing: -.06em;
    margin: 16px 0;
}

.rv-auth-side p {
    max-width: 520px;
    color: #cbd5e1;
    line-height: 1.7;
    font-size: 18px;
}

.rv-form {
    display: grid;
    gap: 16px;
}

.rv-form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rv-form-span {
    grid-column: 1 / -1;
}

.rv-form label {
    display: grid;
    gap: 8px;
    color: #334155;
    font-size: 13px;
    font-weight: 850;
}

.rv-form input,
.rv-form select,
.rv-form textarea {
    width: 100%;
    min-height: 48px;
    border: 1px solid var(--rv-line);
    border-radius: 14px;
    padding: 0 14px;
    font: inherit;
    color: var(--rv-ink);
    background: #fff;
    outline: none;
}

.rv-form textarea {
    min-height: 120px;
    padding: 14px;
    resize: vertical;
}

.rv-form input:focus,
.rv-form select:focus,
.rv-form textarea:focus {
    border-color: rgba(37, 99, 235, .65);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
}

.rv-auth-switch {
    margin: 24px 0 0 !important;
    font-size: 14px;
}

.rv-auth-switch a {
    color: var(--rv-blue);
    font-weight: 900;
}

.rv-alert {
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 18px;
    font-size: 14px;
    font-weight: 750;
}

.rv-alert-success {
    color: #166534;
    background: #dcfce7;
    border: 1px solid #bbf7d0;
}

.rv-alert-error {
    color: #991b1b;
    background: #fee2e2;
    border: 1px solid #fecaca;
}

.rv-alert-warning {
    color: #92400e;
    background: #fef3c7;
    border: 1px solid #fde68a;
}

/* App */
.rv-app-body {
    background: #f4f7fb;
}

.rv-app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 292px 1fr;
}

.rv-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 22px;
    background: var(--rv-navy);
    color: #fff;
    overflow-y: auto;
}

.rv-sidebar .rv-brand {
    color: #fff;
    margin-bottom: 28px;
}

.rv-sidebar .rv-brand small {
    color: #94a3b8;
}

.rv-menu {
    display: grid;
    gap: 6px;
}

.rv-menu-label {
    margin: 24px 10px 8px;
    color: #64748b;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.rv-menu a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 13px;
    border-radius: 14px;
    color: #cbd5e1;
    font-size: 14px;
    font-weight: 750;
}

.rv-menu a:hover,
.rv-menu a.is-active {
    color: #fff;
    background: rgba(255, 255, 255, .09);
}

.rv-app-main {
    min-width: 0;
}

.rv-app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 34px;
    background: rgba(255, 255, 255, .88);
    border-bottom: 1px solid var(--rv-line);
    backdrop-filter: blur(14px);
    position: sticky;
    top: 0;
    z-index: 20;
}

.rv-app-header h1 {
    margin: 0;
    font-size: 26px;
    letter-spacing: -.04em;
}

.rv-app-header p {
    margin: 3px 0 0;
    color: var(--rv-muted);
    font-size: 14px;
}

.rv-user-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 999px;
    background: #f8fafc;
    border: 1px solid var(--rv-line);
    color: #334155;
    font-size: 13px;
    font-weight: 850;
}

.rv-app-content {
    padding: 34px;
}

.rv-kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}

.rv-kpi {
    padding: 22px;
    background: #fff;
    border: 1px solid var(--rv-line);
    border-radius: 22px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, .05);
}

.rv-kpi span {
    display: block;
    color: var(--rv-muted);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.rv-kpi strong {
    display: block;
    margin-top: 12px;
    font-size: 34px;
    letter-spacing: -.05em;
}

.rv-dashboard-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 22px;
}

.rv-panel {
    background: #fff;
    border: 1px solid var(--rv-line);
    border-radius: 24px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, .05);
    overflow: hidden;
}

.rv-panel-title {
    padding: 22px 24px;
    border-bottom: 1px solid var(--rv-line);
}

.rv-panel-title h2 {
    margin: 0;
    font-size: 20px;
    letter-spacing: -.035em;
}

.rv-panel-title p {
    margin: 5px 0 0;
    color: var(--rv-muted);
    font-size: 14px;
}

.rv-table {
    width: 100%;
    border-collapse: collapse;
}

.rv-table th,
.rv-table td {
    text-align: left;
    padding: 14px 24px;
    border-bottom: 1px solid #eef2f7;
    font-size: 14px;
}

.rv-table th {
    color: #64748b;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.rv-status {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 900;
}

.rv-status-ok {
    color: #166534;
    background: #dcfce7;
}

.rv-status-wait {
    color: #92400e;
    background: #fef3c7;
}

.rv-empty {
    padding: 34px 24px;
    color: var(--rv-muted);
    line-height: 1.7;
}

@media (max-width: 980px) {
    .rv-nav {
        display: none;
    }

    .rv-hero-grid,
    .rv-two-col,
    .rv-dashboard-grid {
        grid-template-columns: 1fr;
    }

    .rv-feature-row,
    .rv-kpi-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rv-auth-shell,
    .rv-auth-shell-wide {
        grid-template-columns: 1fr;
    }

    .rv-auth-side {
        display: none;
    }

    .rv-app-shell {
        grid-template-columns: 1fr;
    }

    .rv-sidebar {
        position: static;
        height: auto;
    }
}

@media (max-width: 680px) {
    .rv-container {
        width: min(100% - 26px, var(--rv-container));
    }

    .rv-topbar {
        padding: 14px 16px;
    }

    .rv-hero {
        padding-top: 56px;
    }

    .rv-card-grid,
    .rv-role-grid,
    .rv-feature-row,
    .rv-kpi-grid,
    .rv-form-grid {
        grid-template-columns: 1fr;
    }

    .rv-auth-panel {
        padding: 34px 22px;
    }

    .rv-app-header,
    .rv-app-content {
        padding: 22px;
    }

    .rv-stack-list div {
        grid-template-columns: 1fr;
    }

    .rv-footer .rv-container,
    .rv-section-head {
        display: block;
    }
}


/* RoboVendia brand image update */
.rv-brand-logo-mark {
    display: block;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    object-fit: contain;
    background: #fff;
    box-shadow: 0 16px 40px rgba(37, 99, 235, .18);
}

.rv-sidebar .rv-brand-logo-mark {
    width: 44px;
    height: 44px;
    border-radius: 13px;
}