/* Общие сбросы и базовые стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

:root {
    /* Цвета для темной темы (по умолчанию) */
    --bg-color-dark: #121212;
    --surface-color-dark: #1E1E1E;
    --primary-color-dark: #F39C12;
    --secondary-color-dark: #E67E22;
    --text-color-dark: #E0E0E0;
    --text-muted-dark: #A0A0A0;
    --border-color-dark: #333333;

    /* Цвета для светлой темы */
    --bg-color-light: #F5F5F5;
    --surface-color-light: #FFFFFF;
    --primary-color-light: #E67E22;
    --secondary-color-light: #F39C12;
    --text-color-light: #333333;
    --text-muted-light: #666666;
    --border-color-light: #DDDDDD;

    --font-family: 'Roboto', sans-serif;
    --border-radius: 8px;
    --screenshot-border-radius: 15px;
    --transition-speed: 0.3s;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
    overflow-x: hidden;
}

/* Стили для темной темы */
body.dark-theme {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
}
body.dark-theme .header {
    background-color: rgba(30, 30, 30, 0.85);
}
body.dark-theme .nav-link {
    color: var(--text-muted-dark);
}
body.dark-theme .nav-link:hover,
body.dark-theme .nav-link.active {
    color: var(--primary-color-dark);
    background-color: rgba(243, 156, 18, 0.1);
}
body.dark-theme .logo-text {
    color: var(--text-color-dark);
}
body.dark-theme .theme-toggle-button i,
body.dark-theme .menu-toggle-button i {
    color: var(--primary-color-dark);
}
body.dark-theme .hero-section {
    background: linear-gradient(rgba(18,18,18,0.7), rgba(18,18,18,0.9)), var(--surface-color-dark);
    color: white;
}
body.dark-theme .section-title { color: var(--text-color-dark); }
body.dark-theme .section-subtitle { color: var(--text-muted-dark); }
body.dark-theme .feature-card,
body.dark-theme .download-btn,
body.dark-theme .api-section .btn,
body.dark-theme .contact-form-element {
    background-color: var(--surface-color-dark);
    border: 1px solid var(--border-color-dark);
}
body.dark-theme .footer {
    background-color: var(--surface-color-dark);
    color: var(--text-muted-dark);
}
body.dark-theme .feature-icon i { color: var(--primary-color-dark); }
body.dark-theme .feature-title { color: var(--text-color-dark); }
body.dark-theme .feature-description { color: var(--text-muted-dark); }
body.dark-theme .download-btn { color: var(--text-color-dark); }
body.dark-theme .download-btn strong { color: var(--primary-color-dark); }
body.dark-theme .download-btn:hover {
    background-color: #2a2a2a;
    border-color: var(--primary-color-dark);
}
body.dark-theme .api-section .btn {
    color: var(--text-color-dark);
    border-color: var(--primary-color-dark);
}
body.dark-theme .api-section .btn:hover {
    background-color: var(--primary-color-dark);
    color: var(--bg-color-dark);
}
body.dark-theme .contact-form-element input,
body.dark-theme .contact-form-element textarea {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
    border: 1px solid var(--border-color-dark);
}
body.dark-theme .contact-form-element input::placeholder,
body.dark-theme .contact-form-element textarea::placeholder { color: var(--text-muted-dark); }
body.dark-theme .contact-form-element label { color: var(--text-muted-dark); }
body.dark-theme .telegram-link { color: var(--primary-color-dark); }
body.dark-theme .telegram-link:hover { background-color: rgba(243, 156, 18, 0.25); }
body.dark-theme .nav-menu {
    background-color: var(--surface-color-dark);
    border: 1px solid var(--border-color-dark);
}
body.dark-theme .feature-card:hover {
     box-shadow: 0 6px 20px rgba(243, 156, 18, 0.15);
}
body.dark-theme .feature-icon {
    background-color: rgba(243, 156, 18, 0.1);
}
body.dark-theme .contact-form-element .btn-primary {
    color: var(--bg-color-dark);
}

/* Стили для светлой темы */
body.light-theme {
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
}
body.light-theme .header {
    background-color: rgba(255, 255, 255, 0.85);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
body.light-theme .nav-link {
    color: var(--text-muted-light);
}
body.light-theme .nav-link:hover,
body.light-theme .nav-link.active {
    color: var(--primary-color-light);
     background-color: rgba(230, 126, 34, 0.08);
}
body.light-theme .logo-text {
    color: var(--text-color-light);
}
body.light-theme .theme-toggle-button i,
body.light-theme .menu-toggle-button i {
    color: var(--primary-color-light);
}
body.light-theme .hero-section {
    background: linear-gradient(135deg, var(--secondary-color-light), var(--primary-color-light));
    color: white;
}
body.light-theme .hero-section .btn-primary {
    background-color: white;
    color: var(--primary-color-light);
    border: 2px solid white;
}
body.light-theme .hero-section .btn-primary:hover {
    background-color: rgba(255,255,255,0.9);
    color: var(--primary-color-light);
}
body.light-theme .hero-section .btn-secondary {
    border-color: white;
    color: white;
}
body.light-theme .hero-section .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
}
body.light-theme .hero-app-icon {
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}
body.light-theme .section-title { color: var(--text-color-light); }
body.light-theme .section-subtitle { color: var(--text-muted-light); }
body.light-theme .feature-card,
body.light-theme .download-btn,
body.light-theme .contact-form-element {
    background-color: var(--surface-color-light);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid transparent;
}
body.light-theme .footer {
    background-color: #E9ECEF;
    color: var(--text-muted-light);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}
body.light-theme .feature-icon i { color: var(--primary-color-light); }
body.light-theme .feature-title { color: var(--text-color-light); }
body.light-theme .feature-description { color: var(--text-muted-light); }
body.light-theme .download-btn {
    color: var(--text-color-light);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
body.light-theme .download-btn strong { color: var(--primary-color-light); }
body.light-theme .download-btn:hover {
    background-color: #fdfdfd;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
body.light-theme .api-section .btn {
    color: var(--primary-color-light);
    border-color: var(--primary-color-light);
    background-color: var(--surface-color-light);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}
body.light-theme .api-section .btn:hover {
    background-color: var(--primary-color-light);
    color: white;
}
body.light-theme .contact-form-element input,
body.light-theme .contact-form-element textarea {
    background-color: #fff;
    color: var(--text-color-light);
    border: 1px solid var(--border-color-light);
}
body.light-theme .contact-form-element input::placeholder,
body.light-theme .contact-form-element textarea::placeholder { color: #aaa; }
body.light-theme .contact-form-element label { color: var(--text-muted-light); }
body.light-theme .telegram-link { color: var(--primary-color-light); }
body.light-theme .telegram-link:hover { background-color: rgba(230, 126, 34, 0.2); }
body.light-theme .nav-menu {
    background-color: var(--surface-color-light);
    border: 1px solid var(--border-color-light);
}
body.light-theme .feature-card:hover {
     box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
body.light-theme .feature-icon {
     background-color: rgba(230, 126, 34, 0.08);
}
body.light-theme .contact-form-element .btn-primary {
    color: white;
}

/* Общие компоненты и утилиты */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.section-padding { padding: 60px 0; }
.section-title {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 20px;
    font-weight: 700;
}
.section-subtitle {
    text-align: center;
    font-size: 1.1em;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-speed) ease;
    text-align: center;
    border: 2px solid transparent;
    cursor: pointer;
}
.btn-primary {
    background-color: var(--primary-color-dark);
    color: var(--bg-color-dark);
}
body.light-theme .btn-primary {
    background-color: var(--primary-color-light);
    color: white;
}
.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}
.btn-secondary {
    background-color: transparent;
    border-color: var(--primary-color-dark);
    color: var(--primary-color-dark);
}
body.light-theme .btn-secondary {
    border-color: var(--primary-color-light);
    color: var(--primary-color-light);
}
.btn-secondary:hover {
    background-color: var(--primary-color-dark);
    color: var(--bg-color-dark);
}
body.light-theme .btn-secondary:hover {
    background-color: var(--primary-color-light);
    color: white;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    backdrop-filter: blur(10px);
    transition: background-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.header.scrolled { box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
body.dark-theme .header.scrolled { box-shadow: 0 2px 10px rgba(0,0,0,0.3); }
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-link { display: flex; align-items: center; text-decoration: none; }
.logo-img {
    height: 40px;
    width: 40px;
    object-fit: cover;
    border-radius: 8px;
    margin-right: 10px;
    transition: transform var(--transition-speed) ease;
}
.logo-link:hover .logo-img { transform: rotate(-5deg) scale(1.05); }
.logo-text { font-size: 1.5em; font-weight: 700; }
.header-controls { display: flex; align-items: center; gap: 10px; }
.theme-toggle-button {
    background: none; border: none; cursor: pointer; font-size: 1.5em; padding: 5px;
}
.theme-toggle-button i { transition: color var(--transition-speed) ease, transform var(--transition-speed) ease; }
.theme-toggle-button:hover i { transform: scale(1.1) rotate(15deg); }
.menu-toggle-button {
    display: block; background: none; border: none; font-size: 1.8em; cursor: pointer; padding: 5px;
}
.nav-menu {
    list-style: none;
    display: none;
    flex-direction: column;
    position: absolute;
    top: 65px;
    right: 15px;
    width: auto;
    min-width: 220px;
    padding: 10px 0;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    z-index: 999;
}
.nav-menu.active { display: flex; }
.nav-menu li { text-align: left; width: 100%; }
.nav-link {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}
.nav-link::after { display: none; }

/* Hero Section */
.hero-section {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    text-align: center; position: relative; padding-top: 80px;
}
.hero-content { position: relative; z-index: 1; }
.hero-app-icon {
    width: 120px; height: 120px; border-radius: 25px; margin-bottom: 30px;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.hero-app-icon:hover { transform: scale(1.1) rotate(3deg); }
.hero-title {
    font-size: 3.5em; font-weight: 700; margin-bottom: 15px;
    letter-spacing: -1px; text-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.hero-subtitle { font-size: 1.8em; font-weight: 300; margin-bottom: 25px; opacity: 0.9; }
.hero-description {
    font-size: 1.1em; max-width: 650px; margin: 0 auto 40px;
    opacity: 0.85; line-height: 1.7;
}
.hero-buttons { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.hero-buttons .btn { padding: 15px 35px; font-size: 1.1em; }

/* Features Section */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.feature-card {
    padding: 30px; border-radius: var(--border-radius); text-align: center;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.feature-card:hover { transform: translateY(-10px); }
.feature-icon {
    font-size: 2.5em; margin-bottom: 20px; display: inline-block;
    padding: 15px; border-radius: 50%;
}
.feature-icon i { line-height: 1; }
.feature-title { font-size: 1.4em; font-weight: 500; margin-bottom: 10px; }
.feature-description { font-size: 0.95em; line-height: 1.7; }

/* Screenshots Section */
.screenshots-gallery-wrapper { position: relative; padding: 0 30px; }
.screenshots-gallery {
    display: flex; gap: 20px; overflow-x: auto; padding: 20px 0;
    scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
}
.screenshots-gallery::-webkit-scrollbar { height: 10px; }
.screenshots-gallery::-webkit-scrollbar-track { background: rgba(128, 128, 128, 0.1); border-radius: 5px; }
.screenshots-gallery::-webkit-scrollbar-thumb { background: rgba(128, 128, 128, 0.3); border-radius: 5px; }
body.dark-theme .screenshots-gallery::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.1); }
body.dark-theme .screenshots-gallery::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.3); }
.screenshot-item-wrapper {
    width: 280px; height: 500px; border-radius: var(--screenshot-border-radius);
    overflow: hidden; box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    scroll-snap-align: center; flex-shrink: 0;
}
.screenshot-item-wrapper:hover { transform: scale(1.03); box-shadow: 0 8px 25px rgba(0,0,0,0.15); }
body.dark-theme .screenshot-item-wrapper { box-shadow: 0 5px 20px rgba(0,0,0,0.3); }
body.dark-theme .screenshot-item-wrapper:hover { box-shadow: 0 8px 25px rgba(0,0,0,0.4); }
.screenshot-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.scroll-button {
    position: absolute; top: 50%; transform: translateY(-50%);
    background-color: rgba(0,0,0,0.5); color: white; border: none;
    border-radius: 50%; width: 40px; height: 40px; font-size: 1.2em;
    cursor: pointer; transition: background-color var(--transition-speed) ease; z-index: 10;
}
.scroll-button:hover { background-color: rgba(0,0,0,0.7); }
.scroll-button.prev { left: 0px; }
.scroll-button.next { right: 0px; }
body.dark-theme .scroll-button { background-color: rgba(255,255,255,0.2); color: var(--text-color-dark); }
body.dark-theme .scroll-button:hover { background-color: rgba(255,255,255,0.4); }

/* Download Section */
.download-buttons-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px; max-width: 900px; margin: 0 auto;
}
.download-btn {
    display: flex; align-items: center; padding: 15px 20px;
    border-radius: var(--border-radius); text-decoration: none;
    gap: 15px; transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.download-btn i { font-size: 2.2em; width: 40px; text-align: center; color: var(--primary-color-dark); }
body.light-theme .download-btn i { color: var(--primary-color-light); }
.download-btn div { display: flex; flex-direction: column; }
.download-btn span { font-size: 0.9em; opacity: 0.8; }
.download-btn strong { font-size: 1.1em; font-weight: 500; }
.download-btn:hover { transform: translateY(-5px); }

/* API Section */
.api-links { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.api-links .btn { padding: 12px 25px; }
.api-links .btn i { margin-right: 8px; }

/* Contact Section */
.contact-content { max-width: 600px; margin: 0 auto; text-align: center; }
.contact-content p {
    margin-bottom: 25px;
    font-size: 1.1em;
}
.telegram-link {
    font-weight: 500; text-decoration: none; display: inline-flex;
    align-items: center; gap: 8px; padding: 12px 20px;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) ease;
    margin-bottom: 25px;
}
.telegram-link i { font-size: 1.2em; }
body.dark-theme .telegram-link { 
    background-color: rgba(243, 156, 18, 0.15);
    border: 1px solid rgba(243, 156, 18, 0.3);
}
body.light-theme .telegram-link { 
    background-color: rgba(230, 126, 34, 0.1);
    border: 1px solid rgba(230, 126, 34, 0.2);
}
.telegram-link:hover { 
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
body.dark-theme .telegram-link:hover {
    background-color: rgba(243, 156, 18, 0.25);
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.2);
}
body.light-theme .telegram-link:hover {
    background-color: rgba(230, 126, 34, 0.2);
    box-shadow: 0 4px 15px rgba(230, 126, 34, 0.15);
}
.support-chat-button-wrapper {
    margin-top: 30px;
}
.support-chat-button-wrapper .btn {
    padding: 15px 30px;
    font-size: 1.1em;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.contact-form-element { text-align: left; margin-top: 30px; padding: 30px; border-radius: var(--border-radius); }
.contact-form-element h3 { text-align: center; margin-bottom: 25px; font-weight: 500; font-size: 1.3em; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 0.95em; }
.contact-form-element input,
.contact-form-element textarea {
    width: 100%; padding: 15px; border-radius: var(--border-radius); font-size: 1em;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.contact-form-element input:focus,
.contact-form-element textarea:focus {
    outline: none; border-color: var(--primary-color-dark);
    box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.2);
}
body.light-theme .contact-form-element input:focus,
body.light-theme .contact-form-element textarea:focus {
    border-color: var(--primary-color-light);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.15);
}
.contact-form-element textarea { min-height: 140px; resize: vertical; }
.contact-form-element .btn-primary { width: 100%; padding: 15px; font-size: 1.1em; }

/* Footer */
.footer { padding: 30px 0; margin-top: 40px; text-align: center; font-size: 0.9em; }
.footer p { margin-bottom: 5px; }
.footer .fa-heart { color: var(--secondary-color-dark); }
body.light-theme .footer .fa-heart { color: var(--secondary-color-light); }

/* Адаптивность (Mobile Styles) */
@media (max-width: 768px) {
    .section-title { font-size: 2em; }
    .hero-title { font-size: 2.5em; }
    .hero-subtitle { font-size: 1.3em; }
    .hero-buttons .btn { width: 90%; max-width: 320px; }
    .hero-buttons .btn:not(:last-child) { margin-bottom: 15px; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .screenshots-gallery-wrapper { padding: 0 5px; }
    .screenshot-item-wrapper {
        width: calc(100vw - 60px); max-width: 240px;
        height: auto; max-height: 420px;
    }
    .scroll-button { width: 35px; height: 35px; font-size: 1em; }
    .scroll-button.prev { left: 2px; }
    .scroll-button.next { right: 2px; }
    .download-buttons-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2em; }
    .hero-subtitle { font-size: 1.1em; }
    .logo-text { display: none; }
    .hero-app-icon { width: 100px; height: 100px; }
    .nav-menu { left: 15px; right: 15px; width: auto; }
}

/* Минималистичный блок разработки */
.dev-info-section {
    background: transparent;
    padding: 40px 0;
    margin-top: 60px;
}

.dev-info-box {
    background: var(--surface-color-dark);
    border: 1px solid var(--border-color-dark);
    border-radius: var(--border-radius);
    padding: 25px 30px;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    transition: transform var(--transition-speed) ease;
}

body.light-theme .dev-info-box {
    background: var(--surface-color-light);
    border-color: var(--border-color-light);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.dev-info-box:hover {
    transform: translateY(-3px);
}

.dev-info-box h3 {
    margin: 0 0 15px;
    font-size: 1.4em;
    font-weight: 600;
    color: var(--primary-color-dark);
}

body.light-theme .dev-info-box h3 {
    color: var(--primary-color-light);
}

.dev-info-box p {
    font-size: 1em;
    color: var(--text-color-dark);
    line-height: 1.6;
    margin: 0;
}

body.light-theme .dev-info-box p {
    color: var(--text-color-light);
}

.dev-info-box a {
    color: var(--primary-color-dark);
    text-decoration: underline;
    transition: color var(--transition-speed) ease;
}

body.light-theme .dev-info-box a {
    color: var(--primary-color-light);
}

.dev-info-box a:hover {
    color: var(--secondary-color-dark);
}

body.light-theme .dev-info-box a:hover {
    color: var(--secondary-color-light);
}

/* Ссылка на условия в секции загрузки и футере */
.terms-link, .terms-footer {
    font-size: 0.95em;
    color: var(--text-muted-dark);
    text-align: center;
    margin-top: 15px;
    padding: 10px;
    transition: color var(--transition-speed) ease;
}

body.light-theme .terms-link, body.light-theme .terms-footer {
    color: var(--text-muted-light);
}

.terms-link a, .terms-footer a {
    color: var(--primary-color-dark);
    text-decoration: underline;
    transition: color var(--transition-speed) ease;
}

body.light-theme .terms-link a, body.light-theme .terms-footer a {
    color: var(--primary-color-light);
}

.terms-link a:hover, .terms-footer a:hover {
    color: var(--secondary-color-dark);
}

body.light-theme .terms-link a:hover, body.light-theme .terms-footer a:hover {
    color: var(--secondary-color-light);
}