body { font-family: Arial; }

.admin-login-body {
    margin: 0;
    padding: 0;
    background: url('assets/bg.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: 'Segoe UI', sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.login-box {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    z-index: 10;
    text-align: center;
}

.login-box input, .login-box button {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 15px 0;
    border: none;
    border-radius: 5px;
}

.login-box button {
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-box button:hover {
    background-color: #0056b3;
}

.bubble-container {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;
    left: 0;
    z-index: 1;
}

.bubble {
    position: absolute;
    width: 50px;
    height: 50px;
    animation: float 10s infinite;
    opacity: 0.6;
}

.bubble1 { left: 20%; animation-delay: 0s; }
.bubble2 { left: 50%; animation-delay: 2s; }
.bubble3 { left: 80%; animation-delay: 4s; }

@keyframes float {
    0% { bottom: -60px; }
    100% { bottom: 100%; transform: translateY(-100px); }
}

.error {
    color: red;
    margin-bottom: 10px;
}

/* ====== Page Background ====== */
.sbi-login-body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', sans-serif;
    background: url('fiber_background_1280x720.jpg') no-repeat center center fixed;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

/* ====== Login Box ====== */
.sbi-login-box {
    background: white;
    padding: 30px 25px;
    border-radius: 10px;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.4);
    text-align: center;
    max-width: 400px;
    width: 100%;
    position: relative;
    z-index: 2;
}

.login-header {
    background: #28a745;
    color: white;
    padding: 10px;
    font-weight: bold;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    margin: -30px -25px 15px;
}

.logo-center img {
    height: 150px;
    margin: 0px 0;
    animation: floatLogo 3s ease-in-out infinite;
}

.sbi-login-box h2 {
    margin-top: 0px;     /* এখানে উপরের গ্যাপ কমান */
    margin-bottom: 0px;  /* নিচের গ্যাপও কমান */
    font-size: 20px;
}

.sbi-call {
    font-size: 14px;
    color: #444;
    margin-bottom: 20px;
}

.sbi-login-box input,
.sbi-login-box button {
    width: 80%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 15px;
}

.sbi-login-box button {
    background: #28a745;
    color: white;
    font-weight: bold;
    border: none;
    cursor: pointer;
}

.sbi-login-box button:hover {
    background: #218838;
}

.error {
    color: red;
    margin-bottom: 12px;
}

/* ====== Bubble Background Animation ====== */
.bubble-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 1;
}

.bubble {
    position: absolute;
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 10px rgba(255,255,255,0.6);
    border-radius: 50%;
    animation: floatUp 14s infinite ease-in-out;
}

.bubble1 { left: 10%; bottom: -60px; animation-delay: 0s; }
.bubble2 { left: 20%; bottom: -70px; animation-delay: 2s; }
.bubble3 { left: 30%; bottom: -65px; animation-delay: 4s; }
.bubble4 { left: 40%; bottom: -80px; animation-delay: 6s; }
.bubble5 { left: 50%; bottom: -75px; animation-delay: 8s; }
.bubble6 { left: 60%; bottom: -90px; animation-delay: 1s; }
.bubble7 { left: 70%; bottom: -85px; animation-delay: 3s; }
.bubble8 { left: 80%; bottom: -95px; animation-delay: 5s; }
.bubble9 { left: 90%; bottom: -100px; animation-delay: 7s; }

@keyframes floatUp {
    0% { transform: translateY(0); opacity: 0.2; }
    50% { opacity: 1; transform: translateY(-50px) scale(1.2); }
    100% { transform: translateY(-100vh); opacity: 0; }
}

/* ====== Floating Logo Bubbles ====== */
.bubble-logo-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 2;
}

.bubble-logo {
    position: absolute;
    width: 60px;
    height: auto;
    opacity: 0.8;
    animation: bubble-float 14s infinite ease-in-out;
    pointer-events: none;
}

.logo1 { left: 15%; bottom: -70px; animation-delay: 0s; }
.logo2 { left: 50%; bottom: -100px; animation-delay: 3s; }
.logo3 { left: 80%; bottom: -90px; animation-delay: 6s; }

@keyframes bubble-float {
    0% { transform: translateY(0); opacity: 0; }
    30% { opacity: 1; }
    100% { transform: translateY(-120vh); opacity: 0; }
}

/* ====== Main Logo Subtle Float ====== */
@keyframes floatLogo {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0px); }
}