/* Uplink's look: the deep space theme of BRAND.md. Colours are used by name only. */

@font-face {
    font-family: "Space Grotesk";
    src: url("/fonts/SpaceGrotesk.ttf") format("truetype");
    font-weight: 300 700;
    font-display: swap;
}

:root {
    --color-primary: #A78BFA;
    --color-secondary: #22D3EE;
    --color-bg: #070B1A;
    --color-surface: #121831;
    --color-text: #E6E9F5;
    --color-muted: #8E97B8;
    --color-success: #4ADE80;
    --color-warning: #FB923C;
    --color-danger: #F87171;
    --color-star: #FFFFFF;
    --border: #3A4163;
    --input-bg: #0B1127;
    /* Bootstrap's own colours, so nothing it draws falls back to its default blue or red. */
    --bs-body-bg: var(--color-bg);
    --bs-body-color: var(--color-text);
    --bs-border-color: var(--border);
    --bs-link-color-rgb: 167, 139, 250;
    --bs-link-hover-color-rgb: 34, 211, 238;
}

/* The starfield and the two nebula glows: gradients only, faint enough never to lower the text contrast. */
body {
    min-height: 100vh;
    color: var(--color-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background:
        radial-gradient(ellipse at 15% 20%, #A78BFA17, transparent 34%),
        radial-gradient(ellipse at 85% 70%, #22D3EE14, transparent 36%),
        radial-gradient(circle at 9% 15%, #FFFFFF66 1px, transparent 2px),
        radial-gradient(circle at 78% 25%, #FFFFFF50 1px, transparent 2px),
        radial-gradient(circle at 38% 80%, #FFFFFF80 1px, transparent 2px),
        radial-gradient(circle at 62% 8%, #FFFFFF40 1px, transparent 2px),
        radial-gradient(circle at 92% 92%, #FFFFFF55 1px, transparent 2px),
        radial-gradient(circle at 24% 58%, #FFFFFF30 1px, transparent 2px),
        var(--color-bg);
    background-attachment: fixed;
}

h1, h2, .brand {
    font-family: "Space Grotesk", system-ui, sans-serif;
}
h1 {
    font-size: 24px;
    font-weight: 600;
}
h2 {
    font-size: 20px;
    font-weight: 600;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.shell {
    max-width: 850px;
    margin: 0 auto;
    padding: 1.25rem 1rem 2.5rem;
}
.narrow {
    max-width: 480px;
}
.panel {
    background: var(--color-surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.5rem;
}

a {
    color: var(--color-primary);
}
a:hover {
    color: var(--color-secondary);
}

/* NFR-11: every control shows where the keyboard is, in the focus colour of BRAND.md. */
a:focus-visible, button:focus-visible, .btn:focus-visible, input:focus-visible, select:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
    box-shadow: none;
}

/* The top of a logged-in page: the brand, then the other pages and Log out. */
.top-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: .5rem;
}
.top-nav {
    display: flex;
    align-items: center;
    gap: .25rem;
}
.top-nav form {
    margin: 0;
}
.top-nav a, .link-button {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    min-height: 44px;
    padding: 0 .6rem;
    border: 0;
    border-radius: 12px;
    background: none;
    color: var(--color-primary);
    font: inherit;
    text-decoration: none;
}
.top-nav a:hover, .link-button:hover {
    background: #FFFFFF0F;
    color: var(--color-secondary);
}

.title-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin: 1.75rem 0 1.25rem;
}
.title-row h1 {
    margin: 0;
}

/* Buttons: at least 44 px high, so a thumb hits them (NFR-11). */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    min-height: 44px;
    border-radius: 12px;
}
.btn-primary, .btn-danger {
    color: var(--color-bg);
    font-weight: 700;
}
.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
    color: var(--color-bg);
}
.btn-danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
}
.btn-danger:hover, .btn-danger:focus, .btn-danger:active {
    background: #FCA5A5;
    border-color: #FCA5A5;
    color: var(--color-bg);
}
.btn-ghost, .btn-outline-light {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--color-text);
}
.btn-ghost:hover, .btn-outline-light:hover {
    border-color: var(--color-secondary);
    background: #22D3EE14;
    color: var(--color-text);
}
.btn:disabled {
    opacity: .6;
}
.icon-button {
    position: relative;
    z-index: 2;
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: transparent;
    color: var(--color-text);
    font-size: 1.1rem;
}
.icon-button:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}
.icon-button.danger {
    color: var(--color-danger);
}
.icon-button.danger:hover {
    border-color: var(--color-danger);
}

.form-control, .form-control:focus {
    background: var(--input-bg);
    color: var(--color-text);
}
.form-control {
    min-height: 44px;
    border-color: #60688C;
}
.form-control:focus {
    border-color: var(--color-secondary);
}
.form-control::placeholder {
    color: var(--color-muted);
}
.form-label {
    color: var(--color-text);
}

.muted {
    color: var(--color-muted);
}
.error {
    color: var(--color-danger);
}
.success {
    color: var(--color-success);
}
/* "Can't reach the server": the list stays, with this note above it. */
.problem {
    padding: .75rem 1rem;
    border: 1px solid var(--color-warning);
    border-radius: 12px;
    background: #FB923C1A;
}

/* The PC list: a green dot that pulses like a signal, or a grey one. Words always say the same, for colour-blind users. */
.pc-card {
    position: relative;
    display: grid;
    gap: .3rem;
    margin-bottom: 1rem;
    padding: 1.1rem 1.25rem 1.25rem;
}
.pc-card.is-online {
    border-color: #4ADE8059;
    box-shadow: 0 0 28px #4ADE8012;
}
.pc-card.is-online:hover {
    border-color: var(--color-success);
}
.pc-heading {
    display: flex;
    align-items: center;
    gap: .6rem;
    min-width: 0;
}
.pc-name {
    margin: 0;
    overflow-wrap: anywhere;
}
.pc-details {
    margin: 0 0 .6rem;
    font-size: 14px;
}
/* The dot is only for the eye; screen readers get the hidden comma before it. */
.pc-platform::before {
    content: "·" / "";
    margin: 0 .45em;
}
.pc-actions {
    display: flex;
    justify-content: flex-end;
    gap: .5rem;
}
.pc-actions .btn-primary {
    flex: 1;
}
.dot {
    flex: none;
    display: inline-block;
    width: .75rem;
    height: .75rem;
    border-radius: 50%;
    background: var(--color-muted);
}
.dot.online {
    background: var(--color-success);
    animation: signal 2s infinite;
}
@keyframes signal {
    50% {
        box-shadow: 0 0 0 6px #4ADE8030;
    }
}
@media (prefers-reduced-motion: reduce) {
    .dot.online {
        animation: none;
    }
}

.empty-state {
    padding: 2.5rem 1.5rem;
    text-align: center;
}
.empty-state .bi {
    display: block;
    margin-bottom: .75rem;
    font-size: 2.5rem;
    color: var(--color-secondary);
}

/* Rename and Remove ask here, in the page, instead of in the browser's own boxes. */
dialog.panel {
    width: min(28rem, calc(100vw - 2rem));
    color: var(--color-text);
}
dialog::backdrop {
    background: #070B1AB8;
    backdrop-filter: blur(3px);
}
.dialog-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: .5rem;
    margin-top: 1.25rem;
}

.code {
    font: 700 32px ui-monospace, "Cascadia Mono", Consolas, monospace;
    letter-spacing: .1em;
    text-transform: uppercase;
}
/* The example code is lighter than a typed one, so it isn't taken for a real code. */
.code::placeholder {
    font-weight: 400;
}