/* ============================================
   УНИВЕРСАЛЬНЫЕ КЛАССЫ
   ============================================ */

/* Контейнер */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* Карточка — общий класс для всех блоков */
.card,
.services,
.content,
.contact-form,
.contact-info,
.messengers,
.phone-block,
.pdf-container {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

/* Универсальный transition */
.transition {
    transition: all var(--transition);
}

/* Кнопка */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: background-color var(--transition), color var(--transition), transform var(--transition-fast), box-shadow var(--transition);
    appearance: none;
}

.btn:hover {
    transform: translateY(-2px);
}

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

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-primary:hover {
    background: #5a67d8;
    color: var(--color-white);
}

.btn-success {
    background: var(--color-success);
    color: var(--color-white);
}

.btn-success:hover {
    background: var(--color-success-hover);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-text-muted);
    color: var(--color-white);
}

.btn-secondary:hover {
    background: #5a6268;
    color: var(--color-white);
}

/* Заголовок секции */
.section-title {
    color: var(--color-primary);
    margin: var(--spacing-md) 0 var(--spacing) 0;
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing);
}

/* Фокус для доступности */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

/* ============================================
   КОНТАКТЫ
   ============================================ */

.contact-form,
.contact-info,
.messengers,
.phone-block {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.messengers,
.phone-block {
    text-align: center;
}

/* Формы — общие стили */
form label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: bold;
}

form input,
form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: var(--spacing);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xs);
    font: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

form input:focus,
form textarea:focus {
    border-color: var(--color-accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

form input::placeholder,
form textarea::placeholder {
    color: var(--color-text-muted);
}

form button {
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.75rem var(--spacing-md);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
    appearance: none;
    font: inherit;
}

form button:hover {
    background: #5a67d8;
}

/* Контактные ссылки */
.contact-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.contact-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-primary);
    transition: transform var(--transition), color var(--transition), background var(--transition);
    padding: 0.75rem var(--spacing-md);
    border-radius: var(--radius);
    background: var(--color-bg);
    min-width: 100px;
}

.contact-icon i {
    font-size: 2.5rem;
}

.contact-icon span {
    font-size: 0.9rem;
    font-weight: 500;
}

.contact-icon:hover {
    transform: translateY(-5px);
    color: var(--color-accent);
    background: var(--color-bg-light);
}

/* Телефон */
.phone-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--color-primary);
    background: var(--color-bg);
    padding: var(--spacing) var(--spacing-lg);
    border-radius: var(--radius-full);
    transition: background var(--transition), transform var(--transition);
    margin-top: var(--spacing);
}

.phone-link i {
    font-size: 1.8rem;
    color: var(--color-success);
}

.phone-link:hover {
    background: var(--color-bg-light);
    transform: scale(1.02);
}

/* ============================================
   КАРТОЧКИ УСЛУГ
   ============================================ */

.services,
.content {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-card {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-card h3 {
    margin-bottom: var(--spacing);
    color: var(--color-primary);
}

.service-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.service-link h3 {
    transition: color var(--transition);
}

.service-card:hover .service-link h3 {
    color: var(--color-accent);
}

.service-arrow {
    display: inline-block;
    margin-top: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    transition: transform var(--transition);
}

.service-card:hover .service-arrow {
    transform: translateX(5px);
}

.service-detail-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: transform var(--transition);
}

.service-detail-link:hover {
    transform: translateX(5px);
    text-decoration: underline;
}

/* ============================================
   КНОПКА ПРОКРУТКИ ВВЕРХ
   ============================================ */

#scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: 1000;
    font-size: 1.4rem;
    line-height: 1;
    box-shadow: var(--shadow-md);
    padding: 0;
}

#scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scroll-top-btn:hover {
    background-color: #555;
    transform: translateY(-3px);
}

#scroll-top-btn:active {
    transform: translateY(0);
}

/* Адаптация для мобильных */
@media (max-width: 768px) {
    #scroll-top-btn {
        bottom: 100px;
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    #scroll-top-btn {
        bottom: 80px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* ============================================
   КОНТАКТЫ — ссылки на фиолетовом фоне
   (раньше не были стилизованы, браузер красил
   их дефолтным blue/visited-purple)
   ============================================ */
.contact-heading {
    color: var(--color-white);
    margin-top: var(--spacing);
    margin-bottom: 0.4rem;
}

.contact-phone-link,
.contact-email-link {
    display: inline-block;
    font-size: 1rem;
    font-weight: 600;
}

.contact-phone-link,
.contact-phone-link:link,
.contact-phone-link:visited,
.contact-email-link,
.contact-email-link:link,
.contact-email-link:visited {
    color: var(--color-white);
    text-decoration: none;
}

.contact-phone-link:hover,
.contact-email-link:hover {
    text-decoration: underline;
}

.contact-messengers {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.messenger-link,
.messenger-link:link,
.messenger-link:visited {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
}

.messenger-link:hover {
    text-decoration: underline;
    opacity: 0.9;
}

.messenger-link i {
    font-size: 1.1rem;
    width: 1.2em;
    text-align: center;
}

.contact-address,
.contact-note,
.contact-hours {
    color: var(--color-white);
}

.contact-note {
    opacity: 0.85;
    font-size: 0.9rem;
}