:root {
    --primary: #088A85;
    --primary-dark: #066965;
    --primary-light: #0AABA5;
    --bg: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

a {
    color: var(--primary-light);
    text-decoration: none;
}

header {
    background: var(--surface);
    box-shadow: 0 2px 8px var(--shadow);
    padding: 1rem 2rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}

.logo img {
    display: block;
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary);
}

header nav {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.connection-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--surface-light);
    color: var(--text-muted);
    transition: background 0.3s, color 0.3s;
}

.connection-indicator.online {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.connection-indicator.offline {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.connection-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.5;
}

.connection-indicator.online .connection-dot,
.connection-indicator.offline .connection-dot {
    opacity: 1;
}

.connection-indicator.online .connection-dot {
    animation: pulse 1.5s infinite;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    padding-top: calc(2rem + 73px);
    min-height: 100vh;
}

.toolbar {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-lock {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface-light);
    color: var(--text);
    border: 1px solid var(--surface-light);
    padding: 0.55rem 1.2rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.btn-lock:hover {
    background: #475569;
    border-color: #475569;
}

.btn-lock.unlocked {
    background: rgba(34, 197, 94, 0.2);
    border-color: var(--success);
    color: var(--success);
}

.btn-lock.unlocked:hover {
    background: rgba(34, 197, 94, 0.3);
}

.action-btn.locked {
    opacity: 0.55;
}

.sort-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.sort-form label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.sort-form select {
    padding: 0.45rem 0.7rem;
    border: 1px solid var(--surface-light);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
}

.search-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.search-form input {
    padding: 0.45rem 0.7rem;
    border: 1px solid var(--surface-light);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    min-width: 12rem;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-box {
    background: var(--surface);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--shadow);
    width: 100%;
    max-width: 400px;
}

.login-box .logo {
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--surface-light);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    cursor: pointer;
}

.checkbox input {
    width: auto;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

button, .btn-primary, .btn-secondary, .btn-success, .btn-danger, .btn-warning, .btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

button:hover, .btn-primary:hover, .btn-secondary:hover, .btn-success:hover, .btn-danger:hover, .btn-warning:hover, .btn-link:hover {
    transform: translateY(-1px);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--surface-light);
    color: var(--text);
}

.btn-secondary:hover {
    background: #475569;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #16a34a;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-warning {
    background: var(--warning);
    color: #111827;
}

.btn-warning:hover {
    background: #d97706;
}

.btn-link {
    background: transparent;
    color: var(--text-muted);
    padding: 0.4rem 0.6rem;
}

.btn-link:hover {
    color: var(--text);
}

.inline-form {
    display: inline;
    margin: 0;
}

.server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.server-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 4px 12px var(--shadow);
    border-left: 4px solid var(--danger);
}

.server-card.online {
    border-left-color: var(--success);
}

.server-card.WORKING,
.server-card.STARTING,
.server-card.RESTARTING,
.server-card.SHUTTING_DOWN {
    border-left-color: var(--warning);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.card-header h2 {
    margin: 0;
    font-size: 1.25rem;
    flex: 1;
}

.status-icon {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--danger);
    display: inline-block;
}

.status-icon.ON {
    background: var(--success);
}

.status-icon.STARTING,
.status-icon.RESTARTING,
.status-icon.SHUTTING_DOWN {
    background: var(--warning);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.state {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
}

.card-body p {
    margin: 0.3rem 0;
    color: var(--text-muted);
}

.messages {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.12);
    border-radius: 8px;
    max-height: 9.5rem;
    overflow-y: auto;
}

.messages-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 0.4rem;
}

.btn-ack {
    background: var(--surface-light);
    color: var(--text);
    padding: 0.2rem 0.7rem;
    font-size: 0.8rem;
    border-radius: 6px;
}

.btn-ack:hover {
    background: #475569;
}

.msg-time {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-right: 0.35rem;
    white-space: nowrap;
}

.armed-row {
    color: var(--text-muted);
}

.armed-row.armed {
    color: var(--success);
}

.armed-row.mock {
    color: var(--warning);
}

.armed-row.unknown {
    color: var(--text-muted);
}

.messages ul {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.9rem;
    color: #fecaca;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.error {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.12);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.warning {
    color: var(--warning);
    background: rgba(245, 158, 11, 0.15);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.success {
    color: var(--success);
    background: rgba(34, 197, 94, 0.12);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.hidden {
    display: none;
}

.hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.hint a {
    color: var(--primary-light);
}

.location-select {
    width: 100%;
}

.warning-box {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid var(--warning);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.warning-box p {
    margin: 0.5rem 0;
    color: var(--text);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
}

.modal-box {
    position: relative;
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 16px 40px var(--shadow);
    max-width: 420px;
    width: calc(100% - 2rem);
    z-index: 1001;
}

.modal-box h2 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text);
    font-size: 1.25rem;
}

.modal-box p {
    color: var(--text-muted);
    margin: 0.5rem 0;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .container {
        padding: 1rem;
        padding-top: 11rem;
    }

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

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .toolbar form,
    .toolbar a,
    .toolbar button {
        width: 100%;
    }

    .search-form input {
        min-width: auto;
    }

    .card-actions {
        flex-direction: column;
    }

    .card-actions form,
    .card-actions a,
    .card-actions button {
        width: 100%;
    }
}