/* Modern glassy navbar styles */
.navbar-glass {
    background: rgba(30, 34, 44, 0.7);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border-bottom: 1.5px solid rgba(255,255,255,0.08);
    box-shadow: 0 2px 16px 0 rgba(0,0,0,0.10);
    z-index: 100;
}

.navbar-brand.gradient-text {
    background: linear-gradient(90deg, #667eea 0%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.nav-modern {
    color: #e0e7ff !important;
    font-weight: 500;
    border-radius: 8px;
    padding: 0.4rem 1rem;
    transition: background 0.2s, color 0.2s;
}
.nav-modern.active, .nav-modern:hover {
    background: linear-gradient(90deg, #667eea 0%, #f093fb 100%);
    color: #fff !important;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.bg-darker {
    background-color: #1a1d23;
}

.glass {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.rounded {
    border-radius: 16px !important;
}

.gradientBG {
    background: linear-gradient(135deg, #4a5bb8 0%, #5a3a7a 25%, #b86ec9 50%, #3a88c8 75%, #4a5bb8 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.gradientBG::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(80, 79, 138, 0.25), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(180, 70, 126, 0.25), transparent 50%),
                radial-gradient(circle at 40% 10%, rgba(58, 120, 180, 0.25), transparent 50%);
    animation: moveGradient 20s ease infinite;
}

.form-control-dark {
    background-color: rgba(42, 48, 60, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 14px 18px;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 12px;
}

.form-control-dark:focus {
    background-color: rgba(42, 48, 60, 0.95);
    border: 2px solid rgba(126, 132, 254, 0.6);
    color: #ffffff;
    box-shadow: 0 0 0 4px rgba(126, 132, 254, 0.15),
                0 8px 16px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
}

.form-control-dark::placeholder {
    color: rgba(255, 255, 255, 0.5);
    opacity: 1;
}

.input-group-text-dark {
    background-color: rgba(42, 48, 60, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.btn-dark {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 14px 24px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.5px;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-dark:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a3f8f 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-dark:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
}

.btn-darker {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    padding: 14px 24px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.5px;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-darker:hover {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-darker:active {
    transform: translateY(0);
}

.loginContainer {
    animation: fadeInUp 0.6s ease-out;
}

.input-group {
    margin-bottom: 1.25rem;
}

.input-group-text-dark {
    border-right: none;
}

.input-group .form-control-dark {
    border-left: none;
}

.input-group:focus-within .input-group-text-dark {
    border-color: rgba(126, 132, 254, 0.6);
    background-color: rgba(42, 48, 60, 0.95);
    color: rgba(126, 132, 254, 1);
}

.input-group:focus-within .form-control-dark {
    border-left: none;
}

h2 {
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes moveGradient {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 30px) scale(0.9);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive improvements */
@media (max-width: 576px) {
    .loginContainer {
        padding: 2rem 1.5rem !important;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}