:root {
    --bg: #0b1220;
    --panel: rgba(255, 255, 255, 0.06);
    --panel-2: rgba(255, 255, 255, 0.09);
    --border: rgba(255, 255, 255, 0.12);
    --text: rgba(255, 255, 255, 0.92);
    --muted: rgba(255, 255, 255, 0.70);
    --danger: #ff5c7a;
    --primary: #5fd3ff;
    --primary-2: #3aa7ff;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    color: var(--text);
    background:
        radial-gradient(1000px 700px at 10% 10%, rgba(95, 211, 255, 0.18), transparent 60%),
        radial-gradient(800px 600px at 80% 30%, rgba(58, 167, 255, 0.14), transparent 55%),
        radial-gradient(900px 700px at 40% 90%, rgba(255, 92, 122, 0.12), transparent 60%),
        var(--bg);
}

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    background: rgba(255, 255, 255, 0.08);
    padding: 0.15rem 0.35rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.10);
}

.container {
    width: min(1080px, calc(100% - 2rem));
    margin: 0 auto;
}

.app-header {
    position: sticky;
    top: 0;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(11, 18, 32, 0.55);
    border-bottom: 1px solid var(--border);
}

.app-header__inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.app-brand {
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.2px;
}

.app-nav {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.app-nav__link {
    color: var(--muted);
    text-decoration: none;
    padding: 0.4rem 0.55rem;
    border-radius: 10px;
    border: 1px solid transparent;
}

.app-nav__link:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.08);
}

.app-main {
    padding: 2rem 0 3rem;
}

.h1 {
    margin: 0 0 0.35rem;
    font-size: 1.65rem;
    line-height: 1.2;
}

.h2 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
    line-height: 1.25;
}

.muted {
    margin: 0.25rem 0 0;
    color: var(--muted);
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 1.25rem;
}

.auth {
    min-height: calc(100vh - 64px);
    display: grid;
    place-items: center;
    padding: 2rem 0;
}

.auth-card {
    width: min(520px, 100%);
}

.form {
    display: grid;
    gap: 0.6rem;
    margin-top: 1rem;
}

.label {
    font-size: 0.9rem;
    color: var(--muted);
}

.input {
    appearance: none;
    width: 100%;
    padding: 0.75rem 0.9rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    outline: none;
}

.input:focus {
    border-color: rgba(95, 211, 255, 0.55);
    box-shadow: 0 0 0 4px rgba(95, 211, 255, 0.12);
}

.button {
    appearance: none;
    border: 0;
    border-radius: 12px;
    padding: 0.75rem 0.95rem;
    cursor: pointer;
    font-weight: 650;
}

.button--primary {
    margin-top: 0.25rem;
    color: rgba(0, 0, 0, 0.88);
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
}

.button--primary:hover {
    filter: brightness(1.03);
}

.alert {
    margin-top: 0.75rem;
    padding: 0.8rem 0.9rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--panel-2);
}

.alert--danger {
    border-color: rgba(255, 92, 122, 0.35);
    background: rgba(255, 92, 122, 0.10);
    color: rgba(255, 255, 255, 0.92);
}

.help {
    margin-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.10);
    padding-top: 1rem;
}

.page-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1rem;
}

.grid > .card {
    grid-column: span 12;
}

@media (min-width: 860px) {
    .grid > .card {
        grid-column: span 6;
    }
}