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

body {
    font-family: 'Figtree', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f6f8fa;
    color: #22223b;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: #4f46e5;
    letter-spacing: 1px;
    text-decoration: none;
}
.navbar-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.navbar-nav .nav-link {
    color: #4f46e5;
    font-weight: 500;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
}
.navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
    background: #ede9fe;
    color: #3730a3;
}

/* Container */
.container {
    max-width: 600px;
    margin: 2.5rem auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(80, 112, 255, 0.07);
    padding: 2.5rem 2rem;
}

/* Forms */
form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.form-control {
    padding: 0.75rem 1rem;
    border: 1px solid #e0e7ef;
    border-radius: 8px;
    font-size: 1rem;
    background: #f8fafc;
    transition: border 0.2s;
}
.form-control:focus {
    border-color: #4f46e5;
    outline: none;
    background: #fff;
}

/* Buttons */
.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    background: #4f46e5;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(80, 112, 255, 0.07);
}
.btn:hover, .btn:focus {
    background: #3730a3;
}
.btn-link {
    background: none;
    color: #4f46e5;
    border: none;
    padding: 0;
    font-weight: 500;
    text-decoration: underline;
    cursor: pointer;
}
.btn-link:hover {
    color: #3730a3;
}

/* Checkbox */
input[type="checkbox"] {
    accent-color: #4f46e5;
    width: 1.1em;
    height: 1.1em;
}

/* Utility */
.text-center {
    text-align: center;
}
.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.py-4 { padding-top: 1.5rem; padding-bottom: 1.5rem; }

/* Responsive */
@media (max-width: 700px) {
    .container {
        padding: 1.5rem 0.5rem;
        margin: 1rem;
    }
}

/* Error & Success Messages */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.98rem;
}
.alert-danger {
    background: #fee2e2;
    color: #991b1b;
}
.alert-success {
    background: #d1fae5;
    color: #065f46;
}