* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

.split-container {
    display: flex;
    height: 100vh;
}

/* Sol taraf stilleri */
.split {
    flex: 1;
    height: 100%;
    position: relative;
}

.left {
    background: linear-gradient(45deg, #1a237e, #283593);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    overflow: hidden;
}

.service-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    color: rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease-out;
}

.x-mark {
    font-family: Arial, sans-serif;
    font-weight: bold;
    font-size: 24px;
}

.service-icon {
    font-size: 20px;
}

.content {
    z-index: 1;
    text-align: center;
}

.content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.content p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Sağ taraf stilleri */
.right {
    background: #f5f7fa;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.login-container {
    width: 100%;
    max-width: 400px;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Tab stilleri */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    background: #f5f7fa;
    padding: 5px;
    border-radius: 12px;
}

.tab {
    flex: 1;
    padding: 12px;
    border: none;
    background: none;
    color: #666;
    font-size: 14px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tab i {
    font-size: 16px;
}

.tab.active {
    background: #1a237e;
    color: white;
}

.tab:hover:not(.active) {
    background: rgba(26, 35, 126, 0.1);
}

/* Form stilleri */
.input-group {
    position: relative;
    margin-bottom: 24px;
}

.input-group .icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-size: 16px;
}

.input-group input {
    width: 100%;
    padding: 12px 12px 12px 40px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

.input-group label {
    position: absolute;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-size: 14px;
    transition: all 0.3s;
    pointer-events: none;
    background: white;
}

.input-group input:focus,
.input-group input:valid {
    border-color: #1a237e;
}

.input-group input:focus + label,
.input-group input:valid + label {
    top: 0;
    left: 12px;
    font-size: 12px;
    padding: 0 4px;
    color: #1a237e;
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: #1a237e;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.login-btn:hover {
    background: #283593;
    transform: translateY(-2px);
}

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

.login-form {
    display: block;
    transition: all 0.3s;
}

.login-form.hidden {
    display: none;
}

.error-message {
    background-color: #fee;
    color: #e33;
    padding: 12px;
    border-radius: 8px;
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
    border: 1px solid #fcc;
}

/* Animasyonlar */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes spin-reverse {
    from { transform: rotate(360deg); }
    to { transform: rotate(0deg); }
}

/* Responsive tasarım */
@media (max-width: 768px) {
    .split-container {
        flex-direction: column;
    }
    
    .left {
        display: none;
    }
    
    .right {
        padding: 20px;
    }
}