/* ============================================
   Современный дизайн для Textpolitur Neu
   ============================================ */

:root {
    /* Цветовая палитра */
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #0f3460;
    --accent-light: #533483;
    --text-dark: #1a1a2e;
    --text-medium: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-gray: #edf2f7;
    --border: #e2e8f0;
    --success: #48bb78;
    --error: #f56565;
    
    /* Типографика */
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-text: 'Merriweather', Georgia, serif;
    
    /* Отступы */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Радиусы */
    --radius: 0.5rem;
    --radius-lg: 1rem;
    
    /* Тени */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Переходы */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-text);
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Заголовки используют Montserrat */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
}

/* ============================================
   Навигация
   ============================================ */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    padding: var(--space-sm) 0;
}

nav.scrolled {
    box-shadow: var(--shadow-md);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 0px 0px 5px 5px;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

.logo-link {
    display: inline-block;
    transition: transform 0.3s ease;
}

.logo-link:hover {
    transform: scale(1.05);
}

.nav-logo {
    height: 65px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    color: var(--text-dark);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9375rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    padding: var(--space-xs) 0;
    transition: var(--transition);
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu a:hover {
    color: var(--accent);
}

.nav-menu a:hover::before {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* ============================================
   Основной контент
   ============================================ */

main {
    margin-top: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Баннер
   ============================================ */

.banner {
    width: 100%;
    height: 450px;
    overflow: hidden;
    position: relative;
    margin-bottom: var(--space-2xl);
}

.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(26, 26, 46, 0.1) 0%,
        rgba(26, 26, 46, 0.4) 100%
    );
    z-index: 1;
}

.banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    animation: zoomIn 1.2s ease-out;
}

@keyframes zoomIn {
    from {
        transform: scale(1.1);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* ============================================
   Текстовый контент
   ============================================ */

main > *:not(nav):not(.banner):not(section) {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Приветственный текст */
.welcome-text {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 300;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: var(--space-2xl);
    padding-top: var(--space-xl);
    letter-spacing: 0.5px;
    line-height: 1.8;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

/* Content Blocks */
.content-block {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    animation: fadeInUp 0.8s ease-out;
}

.content-block h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary);
    margin-top: 0;
    margin-bottom: var(--space-lg);
    position: relative;
    padding-bottom: var(--space-sm);
}

.content-block h2::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 2px;
}

.content-block p {
    font-size: 1.0625rem;
    color: var(--text-medium);
    line-height: 1.9;
    margin-bottom: var(--space-lg);
}

.content-block p:last-child {
    margin-bottom: 0;
}

/* ============================================
   Секция контактов
   ============================================ */

.contact-section {
    background-image: url('../images/vid-sverhu-osvesennoi-lampocki-radom-s-bumaznymi-sarikami.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    padding: var(--space-xl) var(--space-md);
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.7);
    pointer-events: none;
    z-index: 0;
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.contact-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: var(--space-lg);
    position: relative;
}

.contact-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 2px;
}

.contact-form {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    font-family: var(--font-heading);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

.form-group {
    margin-bottom: var(--space-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    color: var(--text-dark);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.625rem var(--space-sm);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(15, 52, 96, 0.1);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    font-family: var(--font-heading);
}

.submit-btn {
    width: 150px;
    padding: 0.75rem var(--space-md);
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--space-sm);
    margin-left: auto;
    margin-right: auto;
    display: block;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

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

.submit-btn:active {
    transform: translateY(-1px);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

#formMessage {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius);
    text-align: center;
    font-weight: 500;
    display: none;
    animation: slideDown 0.4s ease-out;
}

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

/* ============================================
   Footer
   ============================================ */

footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    font-size: 1rem;
}

/* ============================================
   Кнопка Scroll to Top
   ============================================ */

.scroll-to-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    transition: var(--transition);
    z-index: 999;
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.scroll-to-top:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.scroll-to-top::before {
    content: '↑';
    font-size: 1.75rem;
    line-height: 1;
    font-weight: 300;
}

/* ============================================
   Content Container (для подстраниц)
   ============================================ */

.content-container {
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 85px;
    padding: var(--space-xl) var(--space-md);
}

.block {
    background: var(--bg-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.8s ease-out;
}

.block h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 4px solid var(--accent);
}

.block h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--primary);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    position: relative;
    padding-left: var(--space-md);
}

.block h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 30px;
    background: linear-gradient(180deg, var(--accent), var(--accent-light));
    border-radius: 2px;
}

.block h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: var(--space-md);
    margin-bottom: var(--space-sm);
}

.block p {
    color: var(--text-medium);
    line-height: 1.9;
    margin-bottom: var(--space-md);
}

.block ul {
    margin-left: var(--space-lg);
    margin-bottom: var(--space-md);
}

.block li {
    color: var(--text-medium);
    margin-bottom: var(--space-xs);
    line-height: 1.8;
}

.block address {
    font-style: normal;
    line-height: 1.9;
    color: var(--text-medium);
    margin-bottom: var(--space-md);
}

.block a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition-fast);
    border-bottom: 1px solid transparent;
}

.block a:hover {
    color: var(--accent-light);
    border-bottom-color: var(--accent-light);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 968px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 75px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 1px solid var(--border);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-menu a::before {
        display: none;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .banner {
        height: 350px;
    }
}

@media (max-width: 768px) {
    :root {
        --space-2xl: 3rem;
        --space-xl: 2rem;
    }
    
    .banner {
        margin-top: 75px;
    }
    
    nav {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }
    
    .nav-logo {
        height: 55px;
    }
    
    .banner {
        height: 280px;
        margin-bottom: var(--space-xl);
    }
    
    .content-block {
        padding: var(--space-lg) var(--space-sm);
    }
    
    .contact-section {
        padding: var(--space-lg) var(--space-sm);
        margin: var(--space-xl) var(--space-sm);
        background-attachment: scroll;
    }
    
    .contact-section::before {
        background: rgba(255, 255, 255, 0.9);
    }
    
    .contact-form {
        padding: var(--space-md);
    }
    
    .block {
        padding: var(--space-lg);
    }
    
    .content-container {
        padding: var(--space-lg) var(--space-sm);
    }
    
    .scroll-to-top {
        bottom: var(--space-md);
        right: var(--space-md);
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }
    
    .banner {
        height: 220px;
    }
    
    .content-block {
        padding: var(--space-md) var(--space-sm);
    }
    
    .content-block h2 {
        font-size: 1.2rem;
        margin-bottom: var(--space-md);
    }
    
    .content-block p {
        font-size: 1rem;
    }
    
    .block {
        padding: var(--space-md);
    }
    
    .block h1,
    .block h2,
    .block h3 {
        font-size: 1.2rem;
    }
    
    .contact-title {
        font-size: 1.2rem;
    }
    
    .contact-section {
        padding: var(--space-md) var(--space-sm);
        margin: var(--space-lg) var(--space-sm);
        background-attachment: scroll;
    }
    
    .contact-section::before {
        background: rgba(255, 255, 255, 0.92);
    }
    
    .contact-form {
        background: rgba(255, 255, 255, 0.98);
        padding: var(--space-md);
    }
    
    .content-container {
        padding: var(--space-md) var(--space-sm);
    }
    
    main > *:not(nav):not(.banner):not(section) {
        padding: 0 var(--space-sm);
    }
    
    .welcome-text {
        font-size: 1.125rem;
        padding-top: var(--space-md);
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    nav,
    .scroll-to-top,
    .hamburger {
        display: none;
    }
    
    main {
        margin-top: 0;
    }
    
    .banner {
        display: none;
    }
}