/* ==== BASE DARK BLUE THEME ==== */
body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #0a0f2c, #001f3f);
    color: #fff;
    display: flex;
    height: 100vh;
    overflow: hidden;
}

body::after {
    content: "";
    position: fixed;
    right: 0;
    top: 0;
    width: 200px;
    height: 100%;
    background: radial-gradient(circle at right, rgba(0, 119, 255, 0.25), transparent 70%);
    pointer-events: none;
}

/* ==== SIDEBAR ==== */
.sidebar {
    width: 230px;
    background: #0d1733;
    padding: 25px;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 15px rgba(0,0,0,0.4);
}

.sidebar h2 {
    text-align: center;
    color: #0abaff;
    margin-bottom: 25px;
    font-size: 22px;
    letter-spacing: 1px;
}

.sidebar a {
    color: #b0c7e1;
    text-decoration: none;
    padding: 12px 10px;
    margin: 5px 0;
    border-radius: 8px;
    transition: 0.3s;
}

.sidebar a:hover,
.sidebar a.active {
    background: #0abaff;
    color: #fff;
    transform: translateX(4px);
}

/* ==== MAIN ==== */
.main {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

header h1 {
    font-size: 26px;
    color: #e3f2ff;
    text-shadow: 0 0 10px rgba(0,153,255,0.5);
}

.card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    margin-top: 25px;
    box-shadow: 0 0 15px rgba(0, 150, 255, 0.2);
}

/* ==== FORM ==== */
.form-event label {
    display: block;
    margin-top: 15px;
    font-weight: 500;
    color: #cde3ff;
}

.form-event input[type="text"],
.form-event input[type="date"],
.form-event input[type="file"],
.form-event textarea {
    width: 100%;
    margin-top: 6px;
    padding: 10px;
    border: none;
    border-radius: 6px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-size: 14px;
}

.form-event input:focus,
.form-event textarea:focus {
    outline: none;
    box-shadow: 0 0 5px #0abaff;
}

/* ==== BUTTONS ==== */
.form-actions {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.btn-submit {
    background: #0077ff;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.btn-submit:hover {
    background: #005ecc;
    box-shadow: 0 0 10px #0abaff;
}

.btn-cancel {
    background: #333;
    color: #fff;
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    transition: 0.3s;
}

.btn-cancel:hover {
    background: #555;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-thumb {
    background: #0abaff;
    border-radius: 5px;
}
::-webkit-scrollbar-track {
    background: #0a0f2c;
}