* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #0a1f3d;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(56, 189, 248, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(14, 165, 233, 0.12) 0%, transparent 50%);
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.ocean-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.wave {
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 200%;
    height: 150px;
    opacity: 0.6;
}

.wave1 {
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z' fill='rgba(14, 165, 233, 0.15)'/%3E%3C/svg%3E") repeat-x;
    animation: wave 25s cubic-bezier(0.36, 0.45, 0.63, 0.53) infinite;
}

.wave2 {
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z' fill='rgba(56, 189, 248, 0.1)'/%3E%3C/svg%3E") repeat-x;
    animation: wave 20s cubic-bezier(0.36, 0.45, 0.63, 0.53) -0.125s infinite, swell 15s ease -1.25s infinite;
}

.wave3 {
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M985.66,92.83C906.67,72,823.78,31,743.84,14.19c-82.26-17.34-168.06-16.33-250.45.39-57.84,11.73-114,31.07-172,41.86A600.21,600.21,0,0,1,0,27.35V120H1200V95.8C1132.19,118.92,1055.71,111.31,985.66,92.83Z' fill='rgba(37, 99, 235, 0.12)'/%3E%3C/svg%3E") repeat-x;
    animation: wave 30s cubic-bezier(0.36, 0.45, 0.63, 0.53) 0s infinite, swell 18s ease 0s infinite;
}

@keyframes wave {
    0% {
        transform: translateX(0) translateZ(0);
    }
    100% {
        transform: translateX(-50%) translateZ(0);
    }
}

@keyframes swell {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.login-container {
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 450px;
    animation: fadeInUp 0.8s ease-out;
}

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

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 3rem 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo-section {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    width: 220px;
    height: auto;
    margin-bottom: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.logo-section h1 {
    font-size: 2rem;
    color: #1a365d;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.tagline {
    color: #64748b;
    font-size: 0.95rem;
    margin-bottom: 0;
}

.error-message {
    background: #fee2e2;
    color: #991b1b;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid #dc2626;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #1e293b;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.login-button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

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

.login-button .arrow {
    transition: transform 0.3s ease;
}

.login-button:hover .arrow {
    transform: translateX(4px);
}

.footer-text {
    margin-top: 2rem;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.footer-text p {
    color: #64748b;
    font-size: 0.85rem;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .login-card {
        padding: 2rem 1.5rem;
    }
    
    .logo-section h1 {
        font-size: 1.75rem;
    }
}