/* ============================================
   Общие компоненты
   Кнопки, формы, сообщения и другие переиспользуемые компоненты
   ============================================ */

/* Логотип */
.logo {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, #f093fb 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.5px;
    animation: gradientText 5s ease infinite;
    position: relative;
    display: inline-block;
    line-height: 1.2;
}

@keyframes gradientText {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Эффект свечения для логотипа */
.logo::after {
    content: 'FastAPI App';
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(10px);
    opacity: 0.5;
    z-index: -1;
}

.subtitle {
    color: var(--text-secondary);
    font-size: clamp(0.8125rem, 2vw, 0.9375rem);
    font-weight: 400;
    line-height: 1.4;
}

/* Кнопки */
.btn {
    width: 100%;
    padding: 0.875rem var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    background-size: 200% 200%;
    color: white;
    box-shadow: 
        0 4px 6px rgba(99, 102, 241, 0.3),
        0 0 20px rgba(99, 102, 241, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    animation: gradientMove 3s ease infinite;
}

@keyframes gradientMove {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Эффект свечения при наведении */
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 
        0 8px 16px rgba(99, 102, 241, 0.4),
        0 0 30px rgba(99, 102, 241, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 
        0 2px 4px rgba(99, 102, 241, 0.3),
        inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Формы */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    position: relative;
}

.form-group input:hover {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.1);
}

.form-group input:focus {
    outline: none;
    border-color: var(--border-focus);
    background: rgba(255, 255, 255, 1);
    box-shadow: 
        0 0 0 3px rgba(99, 102, 241, 0.1),
        0 4px 12px rgba(99, 102, 241, 0.15);
    transform: translateY(-2px);
}

.form-group input::placeholder {
    color: var(--text-light);
}

/* Опции формы */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.forgot-link {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* Сообщение об ошибке */
.error-message {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(254, 202, 202, 0.2) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    animation: shake 0.5s ease-in-out;
    box-shadow: 
        0 4px 6px rgba(239, 68, 68, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.error-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--error-color);
    animation: pulseError 2s ease-in-out infinite;
}

@keyframes pulseError {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Информационное сообщение */
.info-message {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(167, 243, 208, 0.2) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    animation: fadeInSlide 0.5s ease-out;
    box-shadow: 
        0 4px 6px rgba(16, 185, 129, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.info-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--success-color);
    animation: pulseInfo 2s ease-in-out infinite;
}

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

@keyframes pulseInfo {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Социальная авторизация */
.divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-md) 0;
    color: var(--text-light);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--border-color);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

.social-auth {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn-social {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.btn-social::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-social:hover::before {
    width: 300px;
    height: 300px;
}

.btn-social:hover {
    border-color: var(--border-focus);
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

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

/* Темная тема для общих компонентов - только для системной темы */
@media (prefers-color-scheme: dark) {
    html:not([data-theme="light"]) .form-group input {
        background: rgba(17, 24, 39, 0.8);
        border-color: var(--border-color);
        color: var(--text-primary);
    }
    
    html:not([data-theme="light"]) .form-group input:hover {
        border-color: var(--primary-light);
        background: rgba(17, 24, 39, 0.9);
        box-shadow: 0 4px 6px rgba(129, 140, 248, 0.2);
    }
    
    html:not([data-theme="light"]) .form-group input:focus {
        background: rgba(17, 24, 39, 1);
        border-color: var(--border-focus);
        box-shadow: 
            0 0 0 3px rgba(129, 140, 248, 0.2),
            0 4px 12px rgba(129, 140, 248, 0.25);
    }
    
    html:not([data-theme="light"]) .form-group input::placeholder {
        color: var(--text-light);
    }
    
    html:not([data-theme="light"]) .btn-social {
        background: rgba(31, 41, 55, 0.9);
        backdrop-filter: blur(10px);
        border-color: var(--border-color);
        color: var(--text-primary);
    }
    
    html:not([data-theme="light"]) .btn-social:hover {
        border-color: var(--border-focus);
        background: rgba(31, 41, 55, 1);
        box-shadow: 0 4px 12px rgba(129, 140, 248, 0.2);
    }
    
    html:not([data-theme="light"]) .btn-social::before {
        background: rgba(129, 140, 248, 0.15);
    }
    
    html:not([data-theme="light"]) .error-message {
        background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(185, 28, 28, 0.2) 100%);
        backdrop-filter: blur(10px);
        border-color: rgba(239, 68, 68, 0.4);
        color: #fca5a5;
        box-shadow: 
            0 4px 6px rgba(239, 68, 68, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    
    html:not([data-theme="light"]) .info-message {
        background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(5, 150, 105, 0.2) 100%);
        backdrop-filter: blur(10px);
        border-color: rgba(16, 185, 129, 0.4);
        color: #6ee7b7;
        box-shadow: 
            0 4px 6px rgba(16, 185, 129, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    
    html:not([data-theme="light"]) .divider {
        color: var(--text-light);
    }
    
    html:not([data-theme="light"]) .divider::before,
    html:not([data-theme="light"]) .divider::after {
        background: var(--border-color);
    }
}

/* Явные переопределения для темной темы через data-theme="dark" */
html[data-theme="dark"] .form-group input,
html.dark .form-group input {
    background: rgba(17, 24, 39, 0.8);
    border-color: var(--border-color);
    color: var(--text-primary);
}

html[data-theme="dark"] .form-group input:hover,
html.dark .form-group input:hover {
    border-color: var(--primary-light);
    background: rgba(17, 24, 39, 0.9);
    box-shadow: 0 4px 6px rgba(129, 140, 248, 0.2);
}

html[data-theme="dark"] .form-group input:focus,
html.dark .form-group input:focus {
    background: rgba(17, 24, 39, 1);
    border-color: var(--border-focus);
    box-shadow: 
        0 0 0 3px rgba(129, 140, 248, 0.2),
        0 4px 12px rgba(129, 140, 248, 0.25);
}

html[data-theme="dark"] .form-group input::placeholder,
html.dark .form-group input::placeholder {
    color: var(--text-light);
}

html[data-theme="dark"] .btn-social,
html.dark .btn-social {
    background: rgba(31, 41, 55, 0.9);
    backdrop-filter: blur(10px);
    border-color: var(--border-color);
    color: var(--text-primary);
}

html[data-theme="dark"] .btn-social:hover,
html.dark .btn-social:hover {
    border-color: var(--border-focus);
    background: rgba(31, 41, 55, 1);
    box-shadow: 0 4px 12px rgba(129, 140, 248, 0.2);
}

html[data-theme="dark"] .btn-social::before,
html.dark .btn-social::before {
    background: rgba(129, 140, 248, 0.15);
}

html[data-theme="dark"] .error-message,
html.dark .error-message {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(185, 28, 28, 0.2) 100%);
    backdrop-filter: blur(10px);
    border-color: rgba(239, 68, 68, 0.4);
    color: #fca5a5;
    box-shadow: 
        0 4px 6px rgba(239, 68, 68, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

html[data-theme="dark"] .info-message,
html.dark .info-message {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(5, 150, 105, 0.2) 100%);
    backdrop-filter: blur(10px);
    border-color: rgba(16, 185, 129, 0.4);
    color: #6ee7b7;
    box-shadow: 
        0 4px 6px rgba(16, 185, 129, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

html[data-theme="dark"] .divider,
html.dark .divider {
    color: var(--text-light);
}

html[data-theme="dark"] .divider::before,
html[data-theme="dark"] .divider::after,
html.dark .divider::before,
html.dark .divider::after {
    background: var(--border-color);
}

/* Явные переопределения для светлой темы через data-theme="light" */
html[data-theme="light"] .form-group input {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--border-color);
    color: var(--text-primary);
}

html[data-theme="light"] .form-group input:hover {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.1);
}

html[data-theme="light"] .form-group input:focus {
    background: rgba(255, 255, 255, 1);
    border-color: var(--border-focus);
    box-shadow: 
        0 0 0 3px rgba(99, 102, 241, 0.1),
        0 4px 12px rgba(99, 102, 241, 0.15);
}

html[data-theme="light"] .btn-social {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-color: var(--border-color);
    color: var(--text-primary);
}

html[data-theme="light"] .btn-social:hover {
    border-color: var(--border-focus);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

html[data-theme="light"] .error-message {
    /*background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(254, 202, 202, 0.2) 100%);*/
    backdrop-filter: blur(10px);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--error-color);
    box-shadow: 
        0 4px 6px rgba(239, 68, 68, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

html[data-theme="light"] .info-message {
    /*background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(167, 243, 208, 0.2) 100%);*/
    backdrop-filter: blur(10px);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--success-color);
    box-shadow: 
        0 4px 6px rgba(16, 185, 129, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}