:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #0f172a;
    --color-muted: #64748b;
    --color-success: #16a34a;
    --color-error: #dc2626;
    --color-warning: #d97706;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}

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

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

.container {
    width: min(960px, 92%);
    margin: 0 auto;
}

.header {
    background: var(--color-surface);
    border-bottom: 1px solid #e2e8f0;
}

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

.logo {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-primary);
    text-decoration: none;
}

.nav a {
    color: var(--color-muted);
    text-decoration: none;
    font-weight: 500;
}

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

.main {
    padding: 2.5rem 0 4rem;
}

.footer {
    padding: 1.5rem 0;
    border-top: 1px solid #e2e8f0;
    color: var(--color-muted);
    font-size: 0.875rem;
}

.hero {
    margin-bottom: 2rem;
}

.hero h1 {
    margin: 0 0 0.5rem;
    font-size: clamp(2rem, 5vw, 2.75rem);
}

.hero__subtitle {
    margin: 0;
    color: var(--color-muted);
    font-size: 1.125rem;
}

.card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card h2 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.status-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.status-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.status-list li:last-child {
    border-bottom: none;
}

.status-label {
    font-weight: 500;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.badge--success {
    background: #dcfce7;
    color: var(--color-success);
}

.badge--error {
    background: #fee2e2;
    color: var(--color-error);
}

.badge--info {
    background: #dbeafe;
    color: #1d4ed8;
}

.status-value {
    font-size: 0.875rem;
    color: var(--color-muted);
    word-break: break-all;
}

.status-value--error {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--color-error);
}

.status-value--success {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--color-success);
}


.alert {
    margin-top: 1rem;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    font-size: 0.9375rem;
}

.alert--warning {
    background: #fef3c7;
    color: #92400e;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.25rem;
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
}

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

.error-page {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.error-page h1 {
    font-size: 4rem;
    margin: 0 0 0.5rem;
    color: var(--color-primary);
}

code {
    background: #f1f5f9;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-size: 0.875em;
}

/* Auth & Forms */
.auth-page {
    display: flex;
    justify-content: center;
    padding: 1rem 0 2rem;
}

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

.auth-card h1 {
    margin: 0 0 0.25rem;
    font-size: 1.75rem;
}

.auth-subtitle {
    margin: 0 0 1.5rem;
    color: var(--color-muted);
}

.auth-footer {
    margin: 1.25rem 0 0;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.9375rem;
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.form {
    display: grid;
    gap: 1rem;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9375rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.input-disabled {
    width: 100%;
    padding: 0.75rem 0.875rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 1rem;
    background: #fff;
}

.input-disabled {
    background: #f1f5f9;
    color: var(--color-muted);
}

.form-hint {
    color: var(--color-muted);
    font-size: 0.8125rem;
}

.form-error {
    color: var(--color-error);
    font-size: 0.8125rem;
}

.form-check .checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9375rem;
}

.alert--error {
    background: #fee2e2;
    color: #991b1b;
}

.alert--success {
    background: #dcfce7;
    color: #166534;
}

.btn--block {
    width: 100%;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn--outline:hover {
    background: #eff6ff;
}

.btn--disabled,
.btn--disabled:hover {
    background: #94a3b8;
    cursor: not-allowed;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-muted);
    font-weight: 500;
    cursor: pointer;
    padding: 0;
    font-size: inherit;
}

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

.nav--app,
.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.nav-cta {
    color: var(--color-primary) !important;
    font-weight: 700 !important;
}

.nav-logout {
    margin: 0;
    display: inline;
}

/* Dashboard */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.dashboard-greeting {
    margin: 0 0 0.25rem;
    color: var(--color-primary);
    font-weight: 600;
}

.dashboard-header h1 {
    margin: 0;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.dash-card h2 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.dash-code {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin: 0 0 0.75rem;
}

.dash-placeholder {
    margin: 0;
    color: var(--color-muted);
}

.dashboard-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.dash-note {
    color: var(--color-muted);
    font-size: 0.875rem;
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .header__inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 0;
        gap: 0.75rem;
    }

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