/* Login Page Styles with Animated Gradient */
body.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    position: relative;
    overflow: hidden;
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

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

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Floating particles effect */
body.login-page::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) scale(1);
    }

    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.login-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    overflow: hidden;
    max-width: 420px;
    width: 100%;
    margin: 20px;
    transform: translateY(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: slideIn 0.6s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow:
        0 25px 70px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.login-header h2 {
    font-size: 2.2rem;
    margin-bottom: 0;
    font-weight: 700;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.login-header p {
    margin-bottom: 0;
    margin-top: 10px;
    font-size: 1rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.login-body {
    padding: 40px 30px;
}

.login-body .form-label {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.login-body .form-control {
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f8fafc;
}

.login-body .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    background: white;
    transform: translateY(-2px);
}

.login-body .form-control.is-invalid {
    border-color: #ef4444;
    background-image: none;
    animation: shake 0.5s;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px);
    }

    75% {
        transform: translateX(10px);
    }
}

.login-body .invalid-feedback {
    display: block;
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 6px;
    font-weight: 500;
}

.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    width: 100%;
    padding: 14px;
    color: white;
    font-weight: 700;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    color: white;
}

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

.btn-login:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.3);
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 2px solid #cbd5e1;
    cursor: pointer;
    margin-right: 8px;
    transition: all 0.2s ease;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
    transform: scale(1.1);
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

.login-body hr {
    margin: 24px 0;
    border: none;
    border-top: 1px solid #e2e8f0;
}

.demo-credentials {
    text-align: center;
}

.demo-credentials small {
    display: block;
    margin-bottom: 4px;
}

.demo-credentials strong {
    font-weight: 600;
    color: #1e293b;
}

.alert {
    border-radius: 12px;
    border: 1px solid;
    padding: 14px 18px;
    margin-bottom: 20px;
    font-size: 14px;
    animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-danger {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.btn-close {
    background: transparent;
    border: none;
    opacity: 0.5;
    cursor: pointer;
    font-size: 20px;
    padding: 0;
    width: 20px;
    height: 20px;
    transition: opacity 0.2s;
}

.btn-close:hover {
    opacity: 0.8;
}