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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Layout */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    width: 100%;
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    min-height: 700px;
}

/* Left Side - Register Form */
.login-left {
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 40px;
}

/* Right Side - Illustrations */
.login-right {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 40px;
}

.illustration-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-svg {
    width: 200px;
    height: 150px;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
    animation: float 6s ease-in-out infinite;
}

.floating-icons {
    position: absolute;
    width: 100%;
    height: 100%;
}

.icon {
    position: absolute;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.icon svg {
    width: 24px;
    height: 24px;
}

.calculator {
    top: 15%;
    left: 10%;
    animation: float 4s ease-in-out infinite;
}

.pencil {
    top: 25%;
    right: 15%;
    animation: float 5s ease-in-out infinite 0.5s;
}

.bulb {
    top: 60%;
    left: 5%;
    animation: float 4.5s ease-in-out infinite 1s;
}

.compass {
    bottom: 25%;
    right: 10%;
    animation: float 5.5s ease-in-out infinite 1.5s;
}

.microscope {
    bottom: 15%;
    left: 20%;
    animation: float 4.8s ease-in-out infinite 2s;
}

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

/* Right Side - Register Form */
.login-right {
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 8px;
    line-height: 1.2;
}

.login-subtitle {
    font-size: 14px;
    font-weight: 500;
    color: #667eea;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Form Styles */
.back-button {
    margin-bottom: 20px;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: transparent;
    color: #6b7280;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-back:hover {
    background: #f3f4f6;
    color: #374151;
}

.btn-back svg {
    width: 16px;
    height: 16px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-label {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 4px;
}

.input-relative {
    position: relative;
}

.login-input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 400;
    color: #1f2937;
    background: #ffffff;
    transition: all 0.3s ease;
    outline: none;
}

.login-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-input::placeholder {
    color: #9ca3af;
}

.icon-left {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    pointer-events: none;
}

.icon-right {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    pointer-events: none;
}

.icon-16 {
    width: 20px;
    height: 20px;
}

/* Buttons */
.btn {
    padding: 16px 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-google {
    background: white;
    color: #374151;
    border: 2px solid #e5e7eb;
    font-weight: 500;
}

.btn-google:hover {
    background: #f9fafb;
    border-color: #d1d5db;
    transform: translateY(-1px);
}

.btn-google img {
    width: 20px;
    height: 20px;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 8px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e5e7eb;
}

.divider span {
    padding: 0 16px;
    color: #9ca3af;
    font-size: 14px;
    font-weight: 500;
}

/* Links */
.register-link {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: #6b7280;
}

.register-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.register-link a:hover {
    color: #764ba2;
}

/* Alert Styles */
.alert {
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 14px;
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
}

.alert ul {
    margin: 0;
    padding-left: 20px;
}

.alert li {
    margin-bottom: 4px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-grid {
        grid-template-columns: 1fr;
        margin: 20px;
        border-radius: 16px;
        min-height: auto;
    }

    .login-right {
        display: none;
    }

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

    .login-title {
        font-size: 24px;
    }

    .login-input {
        padding: 14px 14px 14px 44px;
        font-size: 16px;
    }

    .btn {
        padding: 14px 20px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 10px;
    }

    .login-left {
        padding: 30px 20px;
    }

    .login-title {
        font-size: 22px;
    }

    .login-input {
        padding: 12px 12px 12px 40px;
    }
}