:root {
    --bg-100: #080b10;
    --bg-200: #10151f;
    --bg-300: #161d2a;
    --border: rgba(255, 255, 255, .08);
    --white-100: #ffffff;
    --white-90: rgba(255, 255, 255, .9);
    --white-70: rgba(255, 255, 255, .7);
    --white-50: rgba(255, 255, 255, .5);
    --blue: #60a5fa;
    --green: #34d399;
    --red: #fb7185;
    --purple: #a78bfa;
    --radius: 22px;
}

.text-blue {
    color: #60a5fa !important;
}

.text-green {
    color: #34d399 !important;
}

.text-red {
    color: #fb7185 !important;
}

.text-yellow {
    color: #facc15 !important;
}

.text-orange {
    color: #fb923c !important;
}

.text-purple {
    color: #a78bfa !important;
}

.text-cyan {
    color: #22d3ee !important;
}

.text-pink {
    color: #f472b6 !important;
}

.text-white {
    color: rgba(255, 255, 255, .92) !important;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top left, rgba(96, 165, 250, .16), transparent 36%), var(--bg-100);
    color: var(--white-90);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

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

.sidebar {
    width: 280px;
    padding: 22px;
    background: rgba(16, 21, 31, .92);
    border-right: 1px solid var(--border);
}

.brand {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 28px;
}

.brand-icon {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: rgba(96, 165, 250, .14);
    color: var(--blue);
}

.brand strong {
    display: block;
    color: var(--white-100);
}

.brand span {
    font-size: 13px;
    color: var(--white-50);
}

.nav {
    display: grid;
    gap: 8px;
}

.nav a {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 13px 14px;
    border-radius: 16px;
    color: var(--white-70);
}

.nav a:hover {
    background: rgba(255, 255, 255, .06);
    color: var(--white-100);
}

.main {
    flex: 1;
    min-width: 0;
}

.topbar {
    min-height: 86px;
    padding: 22px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: center;
}

.topbar h1 {
    margin: 0;
    font-size: 24px;
}

.topbar p {
    margin: 5px 0 0;
    color: var(--white-50);
}

.userbox {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white-70);
}

.userbox a {
    padding: 10px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, .06);
}

.content {
    padding: 28px;
}

.panel {
    background: rgba(16, 21, 31, .84);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .24);
}

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

.stat {
    background: var(--bg-200);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 18px;
}

.stat i {
    color: var(--blue);
    font-size: 22px;
}

.stat strong {
    display: block;
    margin-top: 14px;
    font-size: 26px;
}

.stat span {
    color: var(--white-50);
    font-size: 13px;
}

.auth-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 430px;
    background: rgba(16, 21, 31, .92);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 28px;
}

.auth-card h1 {
    margin: 0 0 6px;
}

.auth-card p {
    margin: 0 0 22px;
    color: var(--white-50);
}

.form-group {
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--white-70);
    font-size: 14px;
}

input {
    width: 100%;
    padding: 14px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--bg-100);
    color: var(--white-90);
    outline: none;
}

button,
.btn {
    width: 100%;
    border: 0;
    padding: 14px 16px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--blue), var(--purple));
    color: white;
    font-weight: 700;
    cursor: pointer;
}

.flash {
    margin: 20px 28px 0;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.flash-error {
    background: rgba(251, 113, 133, .12);
    color: var(--red);
}

.flash-success {
    background: rgba(52, 211, 153, .12);
    color: var(--green);
}

@media (max-width: 900px) {
    .app-shell {
        display: block;
    }

    .sidebar {
        position: fixed;
        left: 14px;
        right: 14px;
        bottom: 14px;
        z-index: 20;
        width: auto;
        padding: 10px;
        border: 1px solid var(--border);
        border-radius: 24px;
    }

    .brand {
        display: none;
    }

    .nav {
        display: flex;
        justify-content: space-around;
    }

    .nav a {
        padding: 12px;
    }

    .nav span {
        display: none;
    }

    .topbar {
        padding: 20px;
    }

    .content {
        padding: 20px 20px 110px;
    }

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