:root {
    --bg: #e8dece;
    --surface: rgba(248, 243, 235, 0.9);
    --surface-strong: #fffaf4;
    --text: #203243;
    --muted: #6e7784;
    --accent: #5e7b92;
    --accent-dark: #3e5668;
    --line: rgba(94, 123, 146, 0.18);
    --shadow: 0 24px 48px rgba(49, 67, 82, 0.12);
    --error: #a25a66;
    --error-bg: #f6e8ea;
    --blush: #e9cfd3;
    --blush-strong: #d9aeb8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(94, 123, 146, 0.18), transparent 24%),
        radial-gradient(circle at 88% 14%, rgba(233, 207, 211, 0.18), transparent 18%),
        radial-gradient(circle at bottom right, rgba(124, 137, 145, 0.12), transparent 22%),
        linear-gradient(180deg, #f6efe6 0%, var(--bg) 100%);
}

.auth-shell {
    width: min(440px, calc(100% - 32px));
    min-height: 100vh;
    margin: 0 auto;
    display: grid;
    align-items: center;
    padding: 32px 0;
}

.eyebrow {
    margin: 0 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 700;
}

.login-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.login-panel h2,
.credentials h3,
.content-card h2,
.content-card h3,
.sidebar-brand h1 {
    margin: 0 0 14px;
}

.lead,
.login-copy,
.user-meta,
.credentials li,
.alert {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.login-panel {
    padding: 36px 32px;
}

.login-form,
.logout-form {
    display: grid;
    gap: 12px;
}

.login-form {
    margin-top: 22px;
}

label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
}

input {
    width: 100%;
    border: 1px solid rgba(122, 85, 60, 0.2);
    padding: 14px 16px;
    background: var(--surface-strong);
    color: var(--text);
    font: inherit;
}

input:focus {
    outline: 2px solid rgba(167, 73, 31, 0.18);
    border-color: rgba(167, 73, 31, 0.35);
}

button {
    margin-top: 10px;
    border: 0;
    padding: 14px 22px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 180ms ease, box-shadow 180ms ease;
    box-shadow: 0 14px 26px rgba(111, 47, 28, 0.28);
}

button:hover {
    transform: translateY(-1px);
}

.credentials {
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.credentials ul {
    margin: 0;
    padding-left: 18px;
}

.alert {
    padding: 14px 16px;
    margin-top: 18px;
}

.error {
    color: var(--error);
    background: var(--error-bg);
    border: 1px solid rgba(163, 46, 46, 0.14);
}

.dashboard-shell {
    width: min(1240px, calc(100% - 48px));
    min-height: 100vh;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 290px minmax(0, 1fr);
    gap: 24px;
    padding: 24px 12px;
}

.sidebar,
.content-card {
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.sidebar {
    display: flex;
    flex-direction: column;
    padding: 28px 22px;
    margin-left: 8px;
}

.sidebar-brand {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}

.sidebar-copy {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.sidebar-menu {
    display: grid;
    gap: 10px;
    margin-top: 22px;
}

.menu-link {
    display: grid;
    gap: 4px;
    padding: 14px 16px;
    text-decoration: none;
    color: var(--text);
    background: rgba(255, 255, 255, 0.45);
    border: 1px solid transparent;
}

.menu-link small {
    color: var(--muted);
}

.menu-link.active,
.menu-link:hover {
    border-color: rgba(167, 73, 31, 0.22);
    background: rgba(167, 73, 31, 0.09);
}

.sidebar-logout {
    margin-top: auto;
    display: grid;
}

.dashboard-content {
    display: grid;
    gap: 20px;
}

.content-card {
    padding: 28px;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

@media (max-width: 820px) {
    .auth-shell {
        width: min(100% - 24px, 440px);
        padding: 20px 0 28px;
    }

    .login-panel {
        padding: 22px;
    }

    .dashboard-shell {
        width: min(100% - 24px, 1240px);
        grid-template-columns: 1fr;
        padding: 16px 0 24px;
    }

    .sidebar {
        margin-left: 0;
    }

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