:root {
    --page-bg: #f0f2f5;
    --card-bg: #ffffff;
    --border-color: #dee2e6;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --accent-color: #0d6efd;
    --accent-hover: #0b5ed7;
    --success-color: #198754;
    --error-color: #dc3545;
    --form-bg: rgba(255,255,255,0.86);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--page-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    padding: 1rem;
}

.form-box {
    background: var(--form-bg);
    backdrop-filter: saturate(120%) blur(8px);
    -webkit-backdrop-filter: saturate(120%) blur(8px);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 450px;
    animation: fadeIn 0.6s ease-out;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}
.logo-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}
h2 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
.tagline, .form-header p {
    font-size: 1rem;
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: 1.25rem;
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    box-sizing: border-box;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.btn {
    width: 100%;
    padding: 14px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    color: white;
    background-color: var(--accent-color);
    cursor: pointer;
    transition: background-color 0.3s;
}
.btn:hover { background-color: var(--accent-hover); }

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.95rem;
}
.form-footer a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}
.form-footer a:hover { text-decoration: underline; }

.error-list, .error-text {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-top: 5px;
}

.success-icon {
    font-size: 3rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}
.text-center { text-align: center; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}