* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #17202a;
    background: #f4f6f8;
}

button,
input {
    font: inherit;
}


/* LOGIN */

.login-page {
    min-height: 100vh;
    display: flex;
    background:
        radial-gradient(circle at top right, #1d3557 0, transparent 40%),
        #0d1726;
}

.login-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 40px;
    background: white;
    border-radius: 14px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, .25);
}

.brand,
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: #e63946;
    color: white;
    font-weight: 800;
}

.brand h1 {
    margin: 0;
    font-size: 22px;
}

.brand p {
    margin: 3px 0 0;
    color: #7b8794;
    font-size: 13px;
}

.login-heading {
    margin: 42px 0 28px;
}

.login-heading h2 {
    margin-bottom: 8px;
}

.login-heading p {
    color: #6c7885;
}

.login-card label {
    display: block;
    margin: 18px 0 7px;
    font-size: 13px;
    font-weight: 600;
}

.login-card input {
    width: 100%;
    padding: 12px 13px;
    border: 1px solid #d7dde3;
    border-radius: 7px;
    outline: none;
}

.login-card input:focus {
    border-color: #456990;
}

.login-card button {
    width: 100%;
    margin-top: 26px;
    padding: 13px;
    border: 0;
    border-radius: 7px;
    background: #172b4d;
    color: white;
    cursor: pointer;
    font-weight: 600;
}

.alert {
    padding: 12px;
    border-radius: 7px;
    background: #fff1f1;
    color: #b42318;
    font-size: 14px;
}


/* APPLICATION */

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

.sidebar {
    width: 245px;
    padding: 25px 18px;
    background: #101b2b;
    color: white;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    padding: 0 8px 28px;
}

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

.sidebar-brand span {
    margin-top: 3px;
    font-size: 11px;
    color: #8190a5;
}

.sidebar nav {
    flex: 1;
}

.sidebar nav a {
    display: block;
    padding: 10px 12px;
    margin: 2px 0;
    border-radius: 6px;
    color: #aeb9c8;
    text-decoration: none;
    font-size: 14px;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background: #1c2b40;
    color: white;
}

.nav-section {
    margin: 25px 12px 8px;
    color: #65758a;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .08em;
}

.logout button {
    width: 100%;
    padding: 10px;
    border: 1px solid #314159;
    border-radius: 6px;
    background: transparent;
    color: #aeb9c8;
    cursor: pointer;
}

.content {
    flex: 1;
    padding: 35px 42px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
}

.topbar h1 {
    margin: 0;
    font-size: 28px;
}

.topbar p {
    margin: 5px 0 0;
    color: #7b8794;
}

.user {
    padding: 8px 13px;
    background: white;
    border: 1px solid #e1e5e9;
    border-radius: 20px;
    font-size: 13px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.card,
.intelligence-panel {
    background: white;
    border: 1px solid #e4e8ec;
    border-radius: 10px;
}

.card {
    padding: 22px;
}

.card-label {
    color: #788595;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .08em;
}

.card h2 {
    margin: 16px 0 8px;
    font-size: 27px;
}

.card p {
    margin: 0;
    color: #87929f;
    font-size: 13px;
}

.intelligence-panel {
    margin-top: 20px;
    padding: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.intelligence-panel h2 {
    margin: 8px 0;
}

.intelligence-panel p {
    max-width: 650px;
    color: #687583;
}

.system-status {
    font-size: 13px;
    color: #687583;
    white-space: nowrap;
}

.status-dot {
    width: 8px;
    height: 8px;
    display: inline-block;
    margin-right: 7px;
    border-radius: 50%;
    background: #22a06b;
}


@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 650px) {
    .sidebar {
        display: none;
    }

    .content {
        padding: 24px;
    }

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