/* ============================================================
   Geotech Rig Access Manager — Professional Industrial Theme
   Dark palette: deep navy / charcoal / amber accent
   ============================================================ */

/* ---- Reset & base ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Brand palette */
    --color-bg:          #0f1117;
    --color-bg-elevated: #181c28;
    --color-bg-card:     #1c2133;
    --color-border:      #2a3050;
    --color-border-subtle: #1e2440;

    /* Text */
    --color-text:        #d4daf0;
    --color-text-muted:  #6e7a9a;
    --color-text-heading:#eef0fc;

    /* Accent — amber / gold for rig operations */
    --color-accent:      #f0a500;
    --color-accent-dark: #c07800;
    --color-accent-glow: rgba(240, 165, 0, 0.15);

    /* Status colours */
    --color-success:     #22c55e;
    --color-danger:      #ef4444;
    --color-warning:     #f59e0b;
    --color-info:        #3b82f6;

    /* Pending state */
    --color-pending:     #f59e0b;

    /* Spacing & shape */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.5);
}

html, body {
    height: 100%;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 14px;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}
a:hover { text-decoration: underline; }

code {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.85em;
    background: rgba(255,255,255,0.06);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    color: #90c4ff;
}

/* ---- Page layout ---- */
.page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ---- Header ---- */
.site-header {
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 16px rgba(0,0,0,0.4);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-mark {
    color: var(--color-accent);
    font-size: 1.2rem;
}

.brand-mark-lg {
    color: var(--color-accent);
    font-size: 2.5rem;
    display: block;
}

.brand-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text-heading);
    letter-spacing: 0.03em;
}

.brand-product {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding-left: 0.5rem;
    border-left: 1px solid var(--color-border);
    margin-left: 0.25rem;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    color: var(--color-text-muted);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: color 0.15s, background 0.15s;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
}
.nav-link:hover {
    color: var(--color-text);
    background: rgba(255,255,255,0.06);
    text-decoration: none;
}

.btn-logout {
    color: var(--color-text-muted);
}
.btn-logout:hover {
    color: var(--color-danger);
}

/* ---- Main content ---- */
.main-content {
    flex: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    width: 100%;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    text-align: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ---- Page header ---- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.page-header h2 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-text-heading);
}

.page-subtitle {
    color: var(--color-text-muted);
    margin-top: 0.25rem;
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.last-refresh {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ---- Cards ---- */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.25rem 0.75rem;
    border-bottom: 1px solid var(--color-border-subtle);
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-heading);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-subtitle {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-top: 0.2rem;
}

.card-body {
    padding: 1rem 1.25rem;
}

/* Section-specific card accents */
.section-pending .card-header {
    border-left: 3px solid var(--color-pending);
}

.section-rig .card-header {
    border-left: 3px solid var(--color-accent);
}

/* ---- Rig header row ---- */
.rig-header-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ---- Cap badge ---- */
.cap-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    letter-spacing: 0.02em;
}

.cap-ok {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.cap-full {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ---- Badge ---- */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 700;
}

.badge-pending {
    background: var(--color-pending);
    color: #000;
}

/* ---- Device list ---- */
.device-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.device-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
    transition: border-color 0.15s;
}

.device-row:hover {
    border-color: var(--color-border);
}

.device-row--pending {
    border-left: 3px solid var(--color-pending);
}

.device-row--approved {
    border-left: 3px solid var(--color-success);
}

/* ---- Online dot ---- */
.online-dot {
    display: block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.online-dot.online {
    background: var(--color-success);
    box-shadow: 0 0 6px var(--color-success);
}

.online-dot.offline {
    background: var(--color-text-muted);
}

/* ---- Device info ---- */
.device-info {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.5rem 1rem;
    min-width: 0;
}

.device-name {
    font-weight: 600;
    color: var(--color-text-heading);
    font-size: 0.9rem;
}

.device-hostname {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.device-ip {
    font-size: 0.82rem;
    font-family: 'Consolas', monospace;
    color: #90c4ff;
    background: rgba(144,196,255,0.08);
    padding: 1px 6px;
    border-radius: var(--radius-sm);
}

.device-key {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: 'Consolas', monospace;
}

.device-since {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

/* ---- Device actions ---- */
.device-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* ---- Forms ---- */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 0.35rem;
}

.form-control, .form-select, .rig-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.15s;
    appearance: auto;
}

.form-control:focus, .form-select:focus, .rig-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-glow);
}

.rig-select {
    width: auto;
    min-width: 120px;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.15s, color 0.15s, opacity 0.15s;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-accent);
    color: #000;
    border-color: var(--color-accent);
    font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-dark);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
    background: rgba(255,255,255,0.05);
}

.btn-approve {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
    border-color: rgba(34, 197, 94, 0.4);
}
.btn-approve:hover:not(:disabled) {
    background: rgba(34, 197, 94, 0.25);
}

.btn-deny {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.4);
}
.btn-deny:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.25);
}

.btn-revoke-soft {
    background: rgba(245, 158, 11, 0.12);
    color: var(--color-warning);
    border-color: rgba(245, 158, 11, 0.35);
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
}
.btn-revoke-soft:hover:not(:disabled) {
    background: rgba(245, 158, 11, 0.22);
}

.btn-revoke-hard {
    background: rgba(239, 68, 68, 0.12);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.35);
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
}
.btn-revoke-hard:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.22);
}

.btn-full {
    width: 100%;
    padding: 0.6rem;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

.btn-copy {
    flex-shrink: 0;
    margin-left: 0.5rem;
}

/* ---- Alerts ---- */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.3);
}

.alert-success {
    background: rgba(34, 197, 94, 0.12);
    color: #86efac;
    border-color: rgba(34, 197, 94, 0.3);
}

.alert-info {
    background: rgba(59, 130, 246, 0.12);
    color: #93c5fd;
    border-color: rgba(59, 130, 246, 0.3);
}

/* ---- Loading state ---- */
.loading-state {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

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

/* ---- Empty state ---- */
.empty-state {
    color: var(--color-text-muted);
    font-size: 0.88rem;
    font-style: italic;
    padding: 0.5rem 0;
}

/* ---- Login page ---- */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 56px - 40px);
    padding: 2rem 1rem;
}

.login-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.6);
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-heading);
    margin-top: 0.5rem;
}

.login-subtitle {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-top: 0.2rem;
}

/* ---- Dashboard ---- */
.dashboard {
    /* single-column layout */
}

/* ---- Enrollment page ---- */
.enrollment-page {
    max-width: 800px;
}

.install-command-box {
    display: flex;
    align-items: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    gap: 0.75rem;
    margin-top: 0.35rem;
}

.install-command {
    flex: 1;
    word-break: break-all;
    font-size: 0.82rem;
    background: transparent;
    padding: 0;
    color: #90c4ff;
}

.key-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-subtle);
}

.key-detail-row {
    display: flex;
    gap: 0.75rem;
    font-size: 0.85rem;
    align-items: baseline;
}

.key-label {
    color: var(--color-text-muted);
    min-width: 80px;
    font-size: 0.82rem;
}

.key-value {
    font-family: 'Consolas', monospace;
    font-size: 0.82rem;
    word-break: break-all;
}

.enrollment-steps {
    padding-left: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-text);
}

.enrollment-steps li {
    padding-left: 0.25rem;
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
    .device-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .device-actions {
        width: 100%;
        flex-wrap: wrap;
    }

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

    .header-inner {
        height: auto;
        padding: 0.75rem 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .brand-product {
        display: none;
    }
}