:root {
    --background-1: #07111f;
    --background-2: #111c31;
    --background-3: #0b1220;
    --surface: rgba(255, 255, 255, .075);
    --surface-hover: rgba(255, 255, 255, .12);
    --border: rgba(255, 255, 255, .13);
    --text: #f8fafc;
    --muted: #9eacc5;
    --primary: #38bdf8;
    --primary-dark: #2563eb;
    --danger: #fb7185;
    --success: #4ade80;
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: dark;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background:
        radial-gradient(
            circle at top left,
            rgba(37, 99, 235, .32),
            transparent 32rem
        ),
        linear-gradient(
            135deg,
            var(--background-1),
            var(--background-2),
            var(--background-3)
        );
}

a {
    color: inherit;
}

.page {
    width: 100%;
    max-width: 1280px;
    margin: auto;
    padding: 28px 20px 50px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 22px;
    margin-bottom: 28px;
}

.topbar h1 {
    margin: 0;
    font-size: clamp(30px, 5vw, 52px);
    line-height: 1.05;
}

.subtitle {
    margin-top: 9px;
    color: var(--muted);
    line-height: 1.55;
}

.navigation {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.button,
button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 44px;
    padding: 11px 16px;
    border: 0;
    border-radius: 14px;
    cursor: pointer;
    color: white;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    background:
        linear-gradient(
            135deg,
            var(--primary),
            var(--primary-dark)
        );
}

.button.secondary {
    color: var(--text);
    border: 1px solid var(--border);
    background: var(--surface);
}

.button.danger,
button.danger {
    color: #fecdd3;
    border: 1px solid rgba(251, 113, 133, .25);
    background: rgba(251, 113, 133, .14);
}

.panel {
    padding: 22px;
    margin-bottom: 22px;
    border: 1px solid var(--border);
    border-radius: 23px;
    background: var(--surface);
    box-shadow: 0 18px 48px rgba(0, 0, 0, .22);
    backdrop-filter: blur(18px);
}

.panel h2,
.panel h3 {
    margin-top: 0;
}

.module-grid,
.card-grid {
    display: grid;
    grid-template-columns:
        repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.module-card {
    display: block;
    min-height: 205px;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 23px;
    color: inherit;
    text-decoration: none;
    background: var(--surface);
    box-shadow: 0 18px 45px rgba(0, 0, 0, .2);
    transition:
        transform .16s ease,
        background .16s ease,
        border-color .16s ease;
}

.module-card:hover {
    transform: translateY(-4px);
    background: var(--surface-hover);
    border-color: rgba(56, 189, 248, .45);
}

.module-icon {
    width: 62px;
    height: 62px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    border-radius: 19px;
    font-size: 31px;
    background:
        linear-gradient(
            135deg,
            var(--primary),
            var(--primary-dark)
        );
}

.module-card h2 {
    margin: 0 0 10px;
    font-size: 23px;
}

.module-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

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

label {
    display: block;
    margin: 0 0 7px;
    color: #dbeafe;
    font-size: 14px;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    min-height: 46px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 13px;
    outline: none;
    color: var(--text);
    background: rgba(15, 23, 42, .86);
    font: inherit;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
}

.checkbox-list {
    display: grid;
    grid-template-columns:
        repeat(auto-fit, minmax(220px, 1fr));
    gap: 11px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 13px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(255, 255, 255, .045);
}

.checkbox-item input {
    width: 19px;
    min-height: 19px;
    margin: 0;
}

.message,
.error {
    padding: 14px;
    margin-bottom: 18px;
    border-radius: 14px;
}

.message {
    color: #bbf7d0;
    border: 1px solid rgba(74, 222, 128, .25);
    background: rgba(74, 222, 128, .13);
}

.error {
    color: #fecaca;
    border: 1px solid rgba(248, 113, 113, .25);
    background: rgba(248, 113, 113, .14);
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
}

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, .09);
    text-align: left;
    vertical-align: middle;
}

th {
    color: #93c5fd;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.status {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: bold;
}

.status.active {
    color: #bbf7d0;
    background: rgba(74, 222, 128, .15);
}

.status.blocked {
    color: #fecaca;
    background: rgba(248, 113, 113, .15);
}

.storage {
    height: 13px;
    overflow: hidden;
    border-radius: 99px;
    background: rgba(255, 255, 255, .1);
}

.storage span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background:
        linear-gradient(
            90deg,
            var(--primary),
            var(--primary-dark)
        );
}

.file-grid {
    display: grid;
    grid-template-columns:
        repeat(auto-fill, minmax(230px, 1fr));
    gap: 18px;
}

.file-card {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 21px;
    background: var(--surface);
}

.file-preview {
    height: 160px;
    display: grid;
    place-items: center;
    overflow: hidden;
    font-size: 68px;
    background: rgba(0, 0, 0, .2);
}

.file-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.file-content {
    padding: 15px;
}

.file-name {
    margin-bottom: 7px;
    font-weight: bold;
    word-break: break-word;
}

.file-meta {
    margin-bottom: 13px;
    color: var(--muted);
    font-size: 13px;
}

.file-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.file-actions .button {
    min-height: 38px;
    padding: 8px;
    font-size: 13px;
}

.upload-box {
    display: block;
    padding: 30px 20px;
    border: 2px dashed rgba(56, 189, 248, .42);
    border-radius: 20px;
    text-align: center;
    cursor: pointer;
}

.upload-box input {
    margin-top: 15px;
}

.small {
    color: var(--muted);
    font-size: 13px;
}

.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 22px;
}

.login-card {
    width: 100%;
    max-width: 450px;
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 27px;
    background: rgba(15, 23, 42, .82);
    box-shadow: 0 24px 70px rgba(0, 0, 0, .38);
    backdrop-filter: blur(18px);
}

.login-logo {
    width: 68px;
    height: 68px;
    display: grid;
    place-items: center;
    margin-bottom: 22px;
    border-radius: 21px;
    font-size: 32px;
    background:
        linear-gradient(
            135deg,
            var(--primary),
            var(--primary-dark)
        );
}

.login-card h1 {
    margin: 0;
    font-size: 33px;
}

.login-card form > div {
    margin-top: 16px;
}

.login-card button {
    width: 100%;
    margin-top: 20px;
}

.empty-state {
    padding: 45px 20px;
    color: var(--muted);
    text-align: center;
}

@media (max-width: 760px) {
    .page {
        padding: 20px 15px 40px;
    }

    .topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .navigation {
        display: grid;
        grid-template-columns: 1fr;
    }

    .navigation .button {
        width: 100%;
    }

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

    .module-grid,
    .card-grid,
    .file-grid {
        grid-template-columns: 1fr;
    }

    .panel {
        padding: 18px;
        border-radius: 20px;
    }

    .login-body {
        align-items: start;
        padding-top: 35px;
    }

    .login-card {
        padding: 25px 21px;
    }
}