*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg: #f5f4f0;
    --surface: #ffffff;
    --border: rgba(0, 0, 0, 0.1);
    --border-em: rgba(0, 0, 0, 0.2);
    --text: #1a1a18;
    --muted: #6b6b67;
    --input-bg: #f5f4f0;
    --danger-bg: #fcebeb;
    --danger-border: rgba(162, 45, 45, 0.25);
    --danger-text: #a32d2d;
    --success-bg: #eaf7f2;
    --success-border: rgba(29, 158, 117, 0.25);
    --success-text: #166a4d;
    --warning: #d4853a;
    --accent: #1D9E75;
    --accent-hover: #18856300;
    --radius-md: 8px;
    --radius-lg: 12px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1c1c1a;
        --surface: #252523;
        --border: rgba(255, 255, 255, 0.1);
        --border-em: rgba(255, 255, 255, 0.2);
        --text: #f0ede6;
        --muted: #99978f;
        --input-bg: #1c1c1a;
        --danger-bg: #2d1a1a;
        --danger-border: rgba(240, 149, 149, 0.2);
        --danger-text: #f09595;
        --success-bg: #1a2d25;
        --success-border: rgba(29, 158, 117, 0.3);
        --success-text: #5ecfa8;
    }
}

html,
body {
    min-height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    min-height: 100vh;
}

.wrap {
    width: 100%;
    max-width: 420px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.75rem;
}

.logo-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--warning);
    flex-shrink: 0;
    transition: background .2s;
}

.logo-dot.ok {
    background: var(--accent);
}

.logo-dot.down {
    background: var(--danger-text);
}

.logo-text {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .08em;
    text-transform: uppercase;
}

.back-link {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .08em;
    text-transform: uppercase;
    text-decoration: none;
    transition: color .15s, transform .15s;
}

.back-link:hover {
    color: var(--accent);
}

.back-link:hover .back-arrow {
    transform: translateX(-2px);
}

.back-arrow {
    display: inline-block;
    transition: transform .15s;
}

.card {
    background: var(--surface);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
}

h1 {
    font-size: 18px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: .25rem;
}

.sub {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: .07em;
    text-transform: uppercase;
    margin-bottom: .35rem;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    height: 38px;
    padding: 0 .75rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--input-bg);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-md);
    outline: none;
    margin-bottom: 1rem;
    transition: border-color .15s, box-shadow .15s;
    -webkit-appearance: none;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(29, 158, 117, 0.12);
}

.homeserver-row {
    display: flex;
    gap: .5rem;
    margin-bottom: 1.25rem;
}

.homeserver-row input[type="text"] {
    flex: 1;
    height: 36px;
    font-family: 'DM Mono', monospace;
    font-size: 13px;
    margin-bottom: 0;
    min-width: 0;
}

.reset-btn {
    height: 36px;
    padding: 0 .75rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 12px;
    color: var(--muted);
    background: transparent;
    border: 0.5px solid var(--border-em);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: color .15s, border-color .15s;
    white-space: nowrap;
}

.reset-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.links {
    display: flex;
    flex-direction: column;
    gap: .65rem;
}

.link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .9rem 1rem;
    background: var(--input-bg);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    text-decoration: none;
    transition: border-color .15s, transform .1s;
}

.link:hover {
    border-color: var(--accent);
}

.link:active {
    transform: scale(.99);
}

.link-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.link-title {
    font-size: 14px;
    font-weight: 500;
}

.link-desc {
    font-size: 12px;
    color: var(--muted);
}

.link-arrow {
    color: var(--muted);
    font-size: 18px;
    flex-shrink: 0;
    transition: transform .15s, color .15s;
}

.link:hover .link-arrow {
    color: var(--accent);
    transform: translateX(2px);
}

.btn {
    width: 100%;
    height: 40px;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: opacity .15s, transform .1s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn:hover {
    opacity: .88;
}

.btn:active {
    transform: scale(.98);
}

.btn:disabled {
    opacity: .45;
    cursor: default;
    transform: none;
}

.notice {
    font-size: 12px;
    color: var(--muted);
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 0.5px solid var(--border);
    line-height: 1.6;
}

.error {
    display: none;
    margin-top: 1rem;
    font-size: 13px;
    color: var(--danger-text);
    background: var(--danger-bg);
    border: 0.5px solid var(--danger-border);
    border-radius: var(--radius-md);
    padding: .6rem .75rem;
}

.result-wrap {
    display: none;
    margin-top: 1.25rem;
}

.result-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: .07em;
    text-transform: uppercase;
    margin-bottom: .5rem;
}

.token-box {
    background: var(--input-bg);
    border: 0.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: .75rem 1rem;
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--text);
    word-break: break-all;
    line-height: 1.7;
    user-select: all;
}

.copy-btn {
    margin-top: .6rem;
    width: 100%;
    height: 36px;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    background: transparent;
    border: 0.5px solid var(--border-em);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background .15s;
}

.copy-btn:hover {
    background: var(--input-bg);
}

.divider {
    height: 0.5px;
    background: var(--border);
    margin: 0.25rem 0 1rem;
}

.strength-row {
    display: none;
    align-items: center;
    gap: 8px;
    margin-top: -0.65rem;
    margin-bottom: 1rem;
}

.strength-bar {
    flex: 1;
    height: 3px;
    border-radius: 2px;
    background: var(--border);
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}

.strength-text {
    font-size: 11px;
    color: var(--muted);
    font-family: 'DM Mono', monospace;
    white-space: nowrap;
}

.match-hint {
    font-size: 11px;
    font-family: 'DM Mono', monospace;
    margin-top: -0.65rem;
    margin-bottom: 1rem;
    min-height: 1em;
    color: var(--muted);
}

.match-hint.ok {
    color: var(--accent);
}

.match-hint.bad {
    color: var(--danger-text);
}

.toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    cursor: pointer;
    user-select: none;
}

.toggle {
    position: relative;
    width: 32px;
    height: 18px;
    flex-shrink: 0;
}

.toggle input {
    display: none;
}

.toggle-track {
    position: absolute;
    inset: 0;
    background: var(--border-em);
    border-radius: 999px;
    transition: background 0.2s;
}

.toggle input:checked~.toggle-track {
    background: var(--accent);
}

.toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.toggle input:checked~.toggle-thumb {
    transform: translateX(14px);
}

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

.alert {
    display: none;
    margin-top: 1rem;
    font-size: 13px;
    border-radius: var(--radius-md);
    padding: .6rem .75rem;
    line-height: 1.5;
    border: 0.5px solid;
}

.alert.show {
    display: block;
}

.alert-error {
    color: var(--danger-text);
    background: var(--danger-bg);
    border-color: var(--danger-border);
}

.alert-success {
    color: var(--success-text);
    background: var(--success-bg);
    border-color: var(--success-border);
}

.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, .3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    flex-shrink: 0;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}