/* ===================================
   styles.css - STLAmrita.pro
   Внешняя таблица стилей
   =================================== */

/* --- CSS Variables (Переменные) --- */
:root {
    /* Основные цвета */
    --color-primary: #8a2be2;
    --color-primary-dark: #6a0dad;
    --color-primary-darker: #4b0082;

    /* Градиенты */
    --gradient-primary: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    --gradient-primary-full: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark), var(--color-primary-darker));
    --gradient-bg: linear-gradient(135deg, #ffffff 0%, #f9f7fe 100%);

    /* Текст */
    --color-text-primary: #000000;
    --color-text-secondary: #333;
    --color-text-muted: #444;
    --color-text-light: #555;
    --color-text-lighter: #666;
    --color-text-footer: #ccc;
    --color-text-footer-dark: #666;

    /* Фон */
    --color-bg-white: #ffffff;
    --color-bg-light: #f8f6ff;
    --color-bg-footer: #000000;

    /* Акцентные цвета */
    --color-accent-light: #b19cd9;
    --color-accent-lighter: #d8b4fe;

    /* Тени */
    --shadow-sm: 0 2px 20px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 8px 25px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.1);
    --shadow-primary: 0 6px 20px rgba(106, 13, 173, 0.25);
    --shadow-primary-hover: 0 10px 25px rgba(106, 13, 173, 0.35);
    --shadow-card-hover: 0 12px 30px rgba(106, 13, 173, 0.15);

    /* Размеры */
    --container-max-width: 1200px;
    --border-radius-sm: 12px;
    --border-radius-md: 20px;
    --border-radius-lg: 30px;

    /* Шрифты */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    /* Переходы */
    --transition-fast: 0.3s ease;
    --transition-normal: 0.6s ease;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background: var(--gradient-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Утилитарные классы --- */
.gradient-text {
    background: var(--gradient-primary-full);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 600;
}

.gradient-bg {
    background: var(--gradient-primary);
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Header --- */
header {
    padding: 30px 0;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.logo span {
    color: var(--color-primary-dark);
}

nav ul {
    display: flex;
    list-style: none;
}

nav li {
    margin-left: 30px;
}

nav a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 4px;
}

nav a:hover {
    color: var(--color-primary-dark);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-fast);
}

nav a:hover::after {
    width: 100%;
}

nav a.active {
    color: var(--color-primary-dark);
}

nav a.active::after {
    width: 100%;
}

/* --- Бургер-меню --- */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.burger-menu span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text-secondary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* --- Мобильное меню --- */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 999;
    padding-top: 100px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.mobile-nav.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav ul {
    list-style: none;
    text-align: center;
}

.mobile-nav li {
    margin: 20px 0;
}

.mobile-nav a {
    font-size: 24px;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 12px;
}

.mobile-nav a:hover,
.mobile-nav a.active {
    color: var(--color-primary-dark);
}

/* --- Секции --- */
section {
    padding: 100px 0;
    display: none;
}

section.active {
    display: block;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 700;
}

/* --- Hero секция --- */
.hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 20px;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

/* --- Кнопки --- */
.btn {
    display: inline-block;
    padding: 14px 36px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 18px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-primary);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary-hover);
}

/* Маленькая кнопка для блога */
.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
}

/* Кнопка на всю ширину */
.btn-full {
    width: 100%;
}

/* Состояние загрузки */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px 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); }
}

/* --- Услуги --- */
.services {
    background: var(--color-bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.service-card {
    background: linear-gradient(145deg, #ffffff, #f8f6ff);
    padding: 40px 30px;
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
}

.service-card h3 {
    font-size: 22px;
    margin: 20px 0 15px;
    color: var(--color-text-primary);
}

.service-card p {
    color: var(--color-text-light);
    font-size: 16px;
}

/* --- Портфолио --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    background: var(--color-bg-white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-fast);
}

.portfolio-item:hover {
    transform: translateY(-10px);
}

.portfolio-img {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: bold;
}

.portfolio-content {
    padding: 25px;
}

.portfolio-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--color-text-primary);
}

.portfolio-content p {
    color: var(--color-text-lighter);
    font-size: 15px;
}

/* --- Цены --- */
.pricing {
    background: var(--gradient-bg);
}

.calculator {
    background: var(--color-bg-white);
    padding: 60px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 800px;
    margin: 0 auto;
}

.calculator h3 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
    color: var(--color-text-primary);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid #e1e1e1;
    border-radius: var(--border-radius-sm);
    font-size: 16px;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group select[multiple] {
    min-height: 120px;
}

.form-group select[multiple] option {
    padding: 8px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.price-result {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    margin: 30px 0;
    color: var(--color-primary-dark);
}

/* --- Блог --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--color-bg-white);
    border-radius: var(--border-radius-md);
    padding: 30px;
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-fast);
}

.blog-card:hover {
    transform: translateY(-8px);
}

.blog-date {
    color: var(--color-primary);
    font-size: 14px;
    margin-bottom: 10px;
    display: block;
}

.blog-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--color-text-primary);
}

.blog-card p {
    color: var(--color-text-lighter);
    font-size: 15px;
    margin-bottom: 20px;
}

/* --- Контакты --- */
.contact-section {
    background: var(--color-bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--color-text-primary);
}

.contact-info p {
    color: var(--color-text-lighter);
    margin-bottom: 15px;
    font-size: 16px;
}

.contact-info a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.contact-social {
    margin-top: 30px;
}

/* --- Футер --- */
footer {
    padding: 60px 0 30px;
    background: var(--color-bg-footer);
    color: white;
    text-align: center;
}

.footer-content {
    margin-bottom: 30px;
}

.footer-logo {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 15px;
}

.footer-logo span {
    color: var(--color-accent-light);
}

.footer-text {
    max-width: 600px;
    margin: 0 auto 20px;
    color: var(--color-text-footer);
}

.contact-link {
    color: var(--color-accent-lighter);
    font-weight: 500;
    text-decoration: none;
}

.copyright {
    color: var(--color-text-footer-dark);
    font-size: 14px;
}

/* --- Уведомления --- */
.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: var(--border-radius-sm);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transform: translateX(120%);
    transition: transform var(--transition-fast);
    max-width: 400px;
    font-size: 15px;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid #22c55e;
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.notification-info {
    border-left: 4px solid var(--color-primary);
}

/* --- Адаптив --- */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    nav li {
        margin-left: 15px;
        font-size: 14px;
    }

    header {
        padding: 20px 0;
    }

    .calculator {
        padding: 30px;
    }

    section {
        padding: 60px 0;
    }

    .hero {
        padding: 140px 0 60px;
    }
}

@media (max-width: 480px) {
    /* Скрываем десктопную навигацию */
    nav {
        display: none;
    }

    /* Показываем бургер-меню */
    .burger-menu {
        display: flex;
    }

    /* Показываем мобильную навигацию */
    .mobile-nav {
        display: block;
    }

    .portfolio-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .calculator {
        padding: 20px;
    }
}