/* 
 * Chat Work Didot v1.0
 * Login Page Styles
 * Pagina di login moderna con sfondo a tutta pagina
 */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

/* Background overlay with image */
.login-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: var(--bg-primary);
    pointer-events: none;
}

.login-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
    z-index: 1;
    pointer-events: none;
}

.login-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
}

/* Animated gradient background when no image */
.login-background.gradient-animate {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4ade80);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Floating particles effect */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-100vh) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

/* Login container */
.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 480px;
}

.login-card {
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: scaleIn 0.5s ease-out;
}

/* Logo and header */
.login-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.login-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    box-shadow: var(--shadow-lg);
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
        transform: scale(1);
    }

    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.8);
        transform: scale(1.05);
    }
}

.login-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 0;
}

/* Form styling */
.login-form {
    margin-bottom: var(--spacing-lg);
}

.login-form .form-group {
    position: relative;
}

.login-form .form-control {
    padding-left: 3rem;
    background: rgba(15, 23, 42, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.login-form .form-control:focus {
    background: rgba(15, 23, 42, 0.8);
    border-color: var(--primary);
}

/* Input icons */
.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.25rem;
    pointer-events: none;
    transition: var(--transition);
}

.form-control:focus+.input-icon {
    color: var(--primary);
}

/* Remember me and forgot password */
.login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.forgot-password {
    color: var(--primary-light);
    font-weight: 500;
    transition: var(--transition-fast);
}

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

/* Submit button */
.login-submit {
    width: 100%;
    padding: 1rem;
    font-size: 1.125rem;
    font-weight: 700;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.login-submit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.login-submit:hover::before {
    width: 400px;
    height: 400px;
}

.login-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* Alert messages */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    animation: slideInLeft 0.3s ease-out;
}

.alert-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid rgba(34, 197, 94, 0.5);
    color: #86efac;
}

.alert-info {
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.5);
    color: #a5b4fc;
}

/* Footer */
.login-footer {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.login-version {
    margin-top: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Responsive */
@media (max-width: 640px) {
    .login-card {
        padding: var(--spacing-xl);
    }

    .login-title {
        font-size: 1.75rem;
    }

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

/* Dark mode enhancements */
@media (prefers-color-scheme: dark) {
    .login-card {
        background: rgba(15, 23, 42, 0.95);
    }
}