:root {
    --main-bg: #f4f5f7;
    --card-bg: #ffffff;
    --accent: #22c55e;
    --accent-hover: #16a34a;
    --text-primary: #111827;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --sidebar-bg: #0f1117;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --auth-card-shadow: 0 4px 18px rgba(30, 58, 95, 0.06);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-family);
    font-size: 0.9rem;
    background: var(--main-bg);
    color: var(--text-primary);
    min-height: 100vh;
}

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.auth-container {
    width: 100%;
    max-width: 440px;
}

.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.auth-brand-icon {
    color: var(--accent);
    font-size: 1.35rem;
}

.auth-brand-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.75rem 1.75rem 2rem;
    box-shadow: var(--auth-card-shadow);
}

.auth-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}

.auth-subtitle {
    font-size: var(--font-size-body, 0.875rem);
    color: var(--text-muted);
    margin-top: -0.5rem;
    margin-bottom: 1.25rem;
    line-height: 1.45;
}

.auth-qr-hint {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    border-radius: 10px;
}

.auth-input,
.auth-card .form-control {
    border-radius: 8px;
    border: 1px solid var(--border);
    padding: 0.55rem 0.85rem;
    font-size: 0.875rem;
}

.auth-input:focus,
.auth-card .form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem rgba(34, 197, 94, 0.15);
}

.auth-card .form-label {
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.btn-auth-accent {
    background: var(--accent);
    border: none;
    color: #fff;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.6rem 1rem;
    font-size: 0.875rem;
}

.btn-auth-accent:hover,
.btn-auth-accent:focus,
.btn-auth-accent:active {
    background: var(--accent-hover) !important;
    color: #fff !important;
}

.btn-auth-accent:disabled {
    background: #86efac;
    border: none;
    color: #fff;
}

.btn-auth-outline {
    border-radius: 999px;
    padding: 0.6rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    border: 1px solid var(--border);
    background: var(--card-bg);
}

.btn-auth-outline:hover {
    background: var(--main-bg);
    border-color: #d1d5db;
    color: var(--text-primary);
}

.auth-eye {
    border-radius: 0 8px 8px 0 !important;
    border-color: var(--border) !important;
    color: var(--text-muted);
    padding: 0 0.75rem;
}

.auth-eye:hover {
    background: var(--main-bg);
    color: var(--text-primary);
}

.auth-input-group .auth-input {
    border-right: none;
    border-radius: 8px 0 0 8px;
}

.auth-modal-content {
    border-radius: 14px;
    border: 1px solid var(--border);
}

.auth-modal-content .modal-title {
    font-weight: 700;
    color: var(--text-primary);
}

.auth-modal-content .list-group-item {
    border-color: var(--border);
    font-size: 0.875rem;
}

.auth-modal-content .text-accent {
    color: var(--accent) !important;
}