@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --gold:        #b8860b;
    --gold-light:  #d4a745;
    --gold-dim:    rgba(184, 134, 11, 0.10);
    --bg:          #f0f2f5;
    --surface-0:   #ffffff;
    --surface-2:   #f5f6f8;
    --border:      rgba(0,0,0,0.08);
    --text-primary:   rgba(0,0,0,0.87);
    --text-secondary: rgba(0,0,0,0.55);
    --text-tertiary:  rgba(0,0,0,0.38);
    --red:     #dc2626;
    --red-dim: rgba(220,38,38,0.08);
    --radius:   8px;
    --radius-sm: 5px;
    --radius-lg: 12px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    font-size: 13.5px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2.25rem 2rem;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

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

.login-brand h1 {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 0.25rem;
}

.login-brand p {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

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

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.375rem;
}

.form-group input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--surface-2);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.15s ease;
}

.form-group input:focus {
    border-color: var(--gold);
}

.btn-login {
    width: 100%;
    padding: 0.575rem 1rem;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--gold);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s ease;
    margin-top: 0.5rem;
}

.btn-login:hover {
    background: var(--gold-light);
}

.login-error {
    background: var(--red-dim);
    color: var(--red);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-weight: 500;
    font-size: 0.8125rem;
    border: 1px solid rgba(220,38,38,0.2);
    text-align: center;
}