body {
    background-color: white;
    color: #03192e;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    display: flex;
    max-width: 800px;
    width: 100%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

.left-section {
    background-color: #03192e;
    color: white;
    padding: 40px;
    width: 50%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.logo {
    background-color: white;
    color: #03192e;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 50%;
    text-align: center;
    font-size: 1.5em;
    font-weight: bold;
}

button {
    background-color: white;
    color: #03192e;
    border: 1px solid #03192e;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.3s ease;
    margin-top: 20px;
}

button:hover {
    background-color: #03192e;
    color: white;
}

.right-section {
    background-color: white;
    padding: 40px;
    width: 50%;
    box-sizing: border-box;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

input {
    display: block;
    width: 80%;
    margin-bottom: 15px;
    padding: 10px;
    border: 1px solid #03192e;
    border-radius: 5px;
    font-size: 1em;
}

button[type="submit"] {
    background-color: #03192e;
    color: white;
    padding: 10px 20px;
    font-size: 0.9em;
    width: auto;
}

.error-popup {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    border-radius: 50px;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), shake 0.6s ease-in-out 0.5s;
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
    max-width: 320px;
    z-index: 9999;
    backdrop-filter: blur(10px);
}

.error-popup-icon {
    font-size: 1.6em;
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.3));
}

.error-popup-text {
    color: white;
    font-weight: 600;
    font-size: 0.9em;
    letter-spacing: 0.3px;
    flex: 1;
}

.error-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.8em;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    flex-shrink: 0;
}

.error-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

@keyframes popIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateX(50px) translateY(50px);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateX(0) translateY(0);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0) translateY(0) rotate(0deg);
    }
    25% {
        transform: translateX(-3px) translateY(-2px) rotate(-1deg);
    }
    50% {
        transform: translateX(3px) translateY(2px) rotate(1deg);
    }
    75% {
        transform: translateX(-3px) translateY(2px) rotate(-1deg);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}