.auth-modal-overlay {
    position: fixed; inset: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: none; align-items: center; justify-content: center;
    padding: 20px;
}
.auth-modal-overlay.active { display: flex; }

.auth-modal {
    background: var(--bg-color, #fff);
    width: 100%; max-width: 420px;
    border: 1px solid var(--border-color, #e5e5e5);
    box-shadow: 0 24px 64px rgba(0,0,0,0.08);
    position: relative;
}

.auth-modal-chrome {
    display: flex; align-items: center; gap: 8px;
    padding: 14px 16px;
    background: #fafafa;
    border-bottom: 1px solid var(--border-color, #e5e5e5);
}
.auth-modal-chrome .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border-color, #e5e5e5); }
.auth-modal-chrome .path {
    margin-left: 8px; flex-grow: 1;
    font-family: var(--font-mono, monospace); font-size: 11px;
    color: var(--text-muted, #666); letter-spacing: 0.5px;
}

.auth-modal-close {
    background: none; border: none; font-size: 1.3rem;
    cursor: pointer; font-family: var(--font-mono, monospace); font-weight: 700;
    padding: 0 4px; line-height: 1; color: var(--text-muted, #666);
}
.auth-modal-close:hover { color: var(--text-main, #000); }

.auth-modal-body { padding: 40px; }

.auth-modal-header { margin-bottom: 32px; text-align: left; }
.auth-modal-cmd {
    font-family: var(--font-mono, monospace); font-size: 15px; font-weight: 700;
    color: var(--text-main, #000); margin-bottom: 10px;
}
.auth-modal-cmd::before { content: "$ "; color: var(--text-muted, #666); }
.auth-modal-subtitle { color: var(--text-muted, #666); font-size: 13px; }

.auth-form-group { margin-bottom: 20px; }
.auth-label {
    display: block; font-family: var(--font-mono, monospace);
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
    margin-bottom: 8px; color: var(--text-muted, #666);
}
.auth-input {
    width: 100%; padding: 14px 16px;
    border: 1px solid var(--border-color, #e5e5e5);
    font-family: var(--font-sans, sans-serif); font-size: 14px; font-weight: 500;
    color: var(--text-main, #000);
    outline: none; transition: border-color 0.2s;
    background: var(--bg-color, #fff);
}
.auth-input:focus { border-color: var(--text-main, #000); }

.auth-code-container { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin: 28px 0; }
.auth-code-input {
    width: 100%; height: 52px; text-align: center;
    border: 1px solid var(--border-color, #e5e5e5);
    font-family: var(--font-mono, monospace);
    font-size: 1.3rem; font-weight: 700;
    color: var(--text-main, #000);
    outline: none;
    background: var(--bg-color, #fff);
    transition: border-color 0.15s;
}
.auth-code-input:focus { border-color: var(--text-main, #000); }

.auth-btn-submit {
    width: 100%; padding: 16px;
    background: var(--text-main, #000); color: var(--bg-color, #fff); border: 1px solid var(--text-main, #000);
    font-family: var(--font-mono, monospace); font-weight: 700;
    font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; cursor: pointer;
    transition: all 0.2s;
}
.auth-btn-submit:hover { background: var(--bg-color, #fff); color: var(--text-main, #000); }

.auth-link-btn {
    background: none; border: none; color: var(--text-muted, #666);
    font-family: var(--font-mono, monospace); font-size: 11px;
    font-weight: 700; text-transform: uppercase; letter-spacing: 0.3px; cursor: pointer;
    margin-top: 20px; display: inline-block; transition: color 0.2s;
}
.auth-link-btn:hover { color: var(--text-main, #000); }

.auth-error-msg {
    background: var(--bg-color, #fff); color: var(--accent-color, #ff3b30); padding: 12px 14px;
    font-size: 13px; font-weight: 600; margin-bottom: 20px;
    border: 1px solid var(--accent-color, #ff3b30); display: none;
}
.auth-error-msg.active { display: block; }