/* =========================================================
   GLOBAL RESET & BASE
========================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #f4f7fa;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* =========================================================
   DECORATIVE SHAPES (Agar Tidak Kosong)
========================================================= */
.background-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
}

/* Objek Biru di Kanan Atas */
.shape-1 {
    width: 450px;
    height: 450px;
    background: linear-gradient(135deg, #4e7cc3, #a2c2e6);
    top: -150px;
    right: -100px;
}

/* Objek Biru di Kiri Bawah */
.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #003366, #4e7cc3);
    bottom: -100px;
    left: -50px;
}

/* =========================================================
   LOGIN BOX
========================================================= */
.login-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 50px 40px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(5px); /* Sedikit efek kaca */
    text-align: center;
}

/* Logo */
.logo {
    margin-bottom: 35px;
}

.logo img {
    max-width: 100%;
    height: auto;
    width: 260px;
}

/* Form inputs */
.form {
    width: 100%;
}

.input-group {
    margin-bottom: 15px;
}

.form input {
    width: 100%;
    padding: 15px 18px;
    border: 1.5px solid #e0e6ed;
    border-radius: 12px;
    font-size: 15px;
    outline: none;
    transition: all 0.3s ease;
    background-color: #fff;
}

.form input:focus {
    border-color: #4e7cc3;
    box-shadow: 0 0 0 4px rgba(78, 124, 195, 0.1);
}

/* Button */
.btn {
    width: 100%;
    padding: 16px;
    background-color: #4e7cc3;
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 10px;
}

.btn:hover {
    background-color: #3f66a3;
    transform: translateY(-1px);
}

/* Error Message */
.message.error {
    margin-top: 20px;
    color: #e63946;
    background: #fff5f5;
    padding: 10px;
    border-radius: 8px;
    font-size: 13px;
    border: 1px solid #fed7d7;
}

/* Footer & Watermark */
.footer {
    margin-top: 40px;
}

.watermark {
    font-size: 11px;
    color: #8898aa;
    letter-spacing: 0.3px;
}

/* Responsive Mobile */
@media (max-width: 480px) {
    .login-container {
        padding: 40px 25px;
    }
}