.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 50%, #DBEAFE 100%);
    padding: var(--spacing-4);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, 2%) rotate(1deg); }
    66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-8);
    position: relative;
    z-index: 1;
    animation: slideUp 0.5s ease-out;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.login-logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
}

.login-logo-text {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.login-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--spacing-2);
}

.login-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.login-form .form-group {
    margin-bottom: 0;
}

.login-form .form-input {
    padding-left: 44px;
    background-position: 14px center;
    background-repeat: no-repeat;
    background-size: 18px;
    transition: all var(--transition-normal);
}

.login-form .form-input:focus {
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.login-form .form-input-user {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z'/%3E%3C/svg%3E");
}

.login-form .form-input-password {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z'/%3E%3C/svg%3E");
}

.login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-sm);
}

.login-remember {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-text-secondary);
    cursor: pointer;
}

.login-remember input {
    accent-color: var(--color-primary);
}

.login-forgot {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.login-forgot:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.login-submit {
    width: 100%;
    padding: var(--spacing-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-top: var(--spacing-2);
}

.login-footer {
    margin-top: var(--spacing-6);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.login-footer a {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.login-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin: var(--spacing-6) 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--color-border);
}

.login-social {
    display: flex;
    gap: var(--spacing-3);
}

.login-social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.login-social-btn:hover {
    background-color: var(--color-background);
    border-color: var(--color-text-muted);
}

.login-back {
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-4);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    z-index: 10;
}

.login-back:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--color-text);
}

.login-error {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-error-light);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
    animation: slideUp 0.3s ease-out;
}

.login-error svg {
    flex-shrink: 0;
}

.login-success {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-success-light);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
    color: #047857;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
    animation: slideUp 0.3s ease-out;
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-6);
        border-radius: var(--radius-lg);
    }

    .login-title {
        font-size: var(--font-size-xl);
    }

    .login-options {
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: flex-start;
    }

    .login-social {
        flex-direction: column;
    }
}

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

.login-float-icon {
    animation: float 3s ease-in-out infinite;
}

.login-float-icon:nth-child(2) {
    animation-delay: 0.5s;
}

.login-float-icon:nth-child(3) {
    animation-delay: 1s;
}