:root {
    --background: #f8f8f8;
    --panel: #ffffff;
    --panel-dark: #2d2c2f;
    --nav-dark: #3d3d3d;
    --panel-border: #e1e1e1;
    --text: #1c1c1c;
    --body-text: #666666;
    --muted: #949494;
    --accent: #f4770a;
    --accent-dark: #ab5307;
    --brand: #312783;
    --danger: #b42318;
    --success: #087443;
    --shadow-soft: 0 18px 45px rgba(45, 44, 47, 0.14);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--background);
    color: var(--body-text);
    font-family: "PT Sans", "Segoe UI", Arial, sans-serif;
}

button,
input {
    font: inherit;
}

[hidden] {
    display: none !important;
}

.auth-view {
    align-items: center;
    background:
        linear-gradient(90deg, rgba(28, 28, 28, 0.84), rgba(45, 44, 47, 0.48)),
        linear-gradient(135deg, #2d2c2f 0%, #3d3d3d 48%, #1c1c1c 100%);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.auth-card {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.76);
    box-shadow: 0 20px 56px rgba(19, 31, 43, 0.32);
    width: min(410px, calc(100vw - 32px));
    padding: 24px;
}

.auth-logo {
    display: block;
    height: 58px;
    margin-bottom: 18px;
    object-fit: contain;
    object-position: left center;
    width: min(300px, 100%);
}

.auth-heading {
    border-top: 3px solid var(--accent);
    padding-top: 16px;
    margin-bottom: 18px;
}

.auth-heading span {
    color: var(--accent);
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.auth-heading h1 {
    color: var(--text);
    font-size: 24px;
    line-height: 30px;
    margin: 0;
}

.auth-heading p {
    color: var(--body-text);
    font-size: 14px;
    line-height: 20px;
    margin: 6px 0 0;
}

.app-frame {
    min-height: 100vh;
}

.site-topbar {
    align-items: center;
    background: var(--panel-dark);
    color: rgba(255, 255, 255, 0.86);
    display: flex;
    font-size: 14px;
    gap: 22px;
    justify-content: flex-end;
    min-height: 40px;
    padding: 8px 28px;
}

.site-topbar span::before {
    color: var(--accent);
    content: "";
}

.site-header {
    align-items: center;
    background: #fff;
    border-bottom: 1px solid var(--panel-border);
    box-shadow: 0 2px 10px rgba(45, 44, 47, 0.08);
    display: flex;
    gap: 18px;
    justify-content: space-between;
    min-height: 88px;
    padding: 14px 28px;
    position: sticky;
    top: 0;
    z-index: 20;
}

.logo-link {
    display: block;
    height: 58px;
    width: min(315px, 64vw);
}

.logo-link img {
    display: block;
    height: 100%;
    object-fit: contain;
    object-position: left center;
    width: 100%;
}

.shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: calc(100vh - 128px);
}

.sidebar {
    background: var(--panel-dark);
    color: #fff;
    padding: 24px 18px;
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    margin-bottom: 24px;
    padding-bottom: 18px;
}

.brand strong,
.brand span {
    display: block;
}

.brand span {
    color: rgba(255, 255, 255, 0.68);
    font-size: 13px;
    margin-top: 2px;
}

.nav {
    display: grid;
    gap: 6px;
}

.nav-item {
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0;
    background: transparent;
    color: rgba(255, 255, 255, 0.82);
    cursor: pointer;
    font-weight: 700;
    padding: 11px 12px;
    text-align: left;
    text-transform: uppercase;
}

.nav-item.active,
.nav-item:hover {
    background: var(--nav-dark);
    border-left-color: var(--accent);
    color: #fff;
}

.main {
    padding: 28px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    margin-bottom: 24px;
}

.topbar h1 {
    color: var(--text);
    font-size: 28px;
    margin: 0 0 4px;
}

.topbar p {
    color: var(--muted);
    margin: 0;
}

.workspace {
    max-width: 920px;
}

.tabs {
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    gap: 8px;
    margin: 0 -4px 18px;
    padding: 0 4px;
}

.tab {
    border: 0;
    border-bottom: 2px solid transparent;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    padding: 10px 8px;
}

.tab.active {
    border-bottom-color: var(--accent);
    color: var(--text);
}

.form {
    display: grid;
    gap: 14px;
    max-width: 520px;
}

.form label {
    color: var(--muted);
    display: grid;
    gap: 6px;
    font-size: 13px;
}

.form input {
    border: 1px solid var(--panel-border);
    border-radius: 0;
    color: var(--text);
    padding: 10px 12px;
    width: 100%;
}

.form input:focus {
    border-color: var(--accent);
    outline: 2px solid rgba(244, 119, 10, 0.18);
}

.two-factor-box {
    border: 1px solid var(--panel-border);
    background: #f8f8f8;
    display: grid;
    gap: 10px;
    padding: 12px;
}

.two-factor-box strong {
    color: var(--text);
}

.two-factor-box p {
    color: var(--body-text);
    font-size: 13px;
    line-height: 18px;
    margin: 0;
}

.two-factor-qr {
    align-self: center;
    background: #fff;
    border: 1px solid var(--panel-border);
    height: 180px;
    object-fit: contain;
    padding: 8px;
    width: 180px;
}

.otp-link {
    color: var(--accent);
    font-weight: 700;
    overflow-wrap: anywhere;
}

.button {
    border: 1px solid var(--panel-border);
    border-radius: 0;
    cursor: pointer;
    font-weight: 700;
    min-height: 38px;
    padding: 8px 14px;
    text-transform: uppercase;
}

.button.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.button.primary:hover {
    background: var(--accent-dark);
}

.button.ghost {
    background: var(--panel);
    color: var(--text);
}

.button.ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.message {
    color: var(--muted);
    min-height: 20px;
}

.message.error {
    color: var(--danger);
}

.message.success {
    color: var(--success);
}

.summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.summary div,
.module {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 0;
    padding: 16px;
}

.summary span {
    color: var(--muted);
    display: block;
    font-size: 13px;
    margin-bottom: 4px;
}

.summary strong {
    display: block;
    overflow-wrap: anywhere;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 12px;
}

.module {
    min-height: 112px;
}

.module h2 {
    color: var(--text);
    font-size: 17px;
    margin: 0 0 8px;
}

.module p {
    color: var(--muted);
    margin: 0 0 14px;
}

.module a {
    color: var(--accent);
    font-weight: 700;
    text-decoration: none;
}

.hidden {
    display: none !important;
}

@media (max-width: 760px) {
    .site-topbar {
        justify-content: flex-start;
        padding-inline: 18px;
    }

    .site-header {
        min-height: 78px;
        padding-inline: 18px;
    }

    .auth-view {
        align-items: stretch;
        padding: 16px;
    }

    .auth-card {
        align-self: center;
        padding: 20px;
    }

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

    .sidebar {
        padding: 14px;
    }

    .nav {
        grid-template-columns: repeat(3, 1fr);
    }

    .main {
        padding: 18px;
    }

    .topbar,
    .summary {
        grid-template-columns: 1fr;
    }
}