/* CSS Variables for Consistent Theme */
:root {
    /* Аналоговая цветовая схема */
    --primary-color: #FF6B35;
    --primary-dark: #E55A2B;
    --secondary-color: #FFB830;
    --secondary-dark: #E6A52D;
    --accent-color: #FF9500;
    --accent-dark: #E6860A;
    
    /* Дополнительные цвета */
    --tertiary-color: #FF4500;
    --quaternary-color: #FFD700;
    --warm-orange: #FF8C42;
    --deep-amber: #FFA726;
    
    /* Нейтральные цвета */
    --text-primary: #2C3E50;
    --text-secondary: #34495E;
    --text-light: #7F8C8D;
    --text-white: #FFFFFF;
    --background-light: #FAFAFA;
    --background-dark: #2C3E50;
    --border-color: #E0E6ED;
    --shadow-light: rgba(44, 62, 80, 0.1);
    --shadow-medium: rgba(44, 62, 80, 0.2);
    --shadow-dark: rgba(44, 62, 80, 0.3);
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--quaternary-color));
    --gradient-hero: linear-gradient(135deg, rgba(255, 107, 53, 0.9), rgba(255, 149, 0, 0.9));
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(250, 250, 250, 0.95));
    
    /* Типографика */
    --font-primary: 'Archivo Black', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    --font-size-hero: 3.5rem;
    --font-size-h1: 2.5rem;
    --font-size-h2: 2rem;
    --font-size-h3: 1.5rem;
    --font-size-body: 1rem;
    --font-size-small: 0.875rem;
    
    /* Отступы и размеры */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --border-radius: 12px;
    --border-radius-small: 8px;
    --border-radius-large: 20px;
    
    /* Анимации */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* Global Button Styles */
.btn, button, input[type='submit'] {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-secondary);
    font-size: var(--font-size-body);
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    background: var(--gradient-primary);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before, button::before, input[type='submit']::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-secondary);
    transition: var(--transition-normal);
    z-index: -1;
}

.btn:hover::before, button:hover::before, input[type='submit']:hover::before {
    left: 0;
}

.btn:hover, button:hover, input[type='submit']:hover {
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-medium);
}

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

.btn-secondary {
    background: var(--gradient-secondary);
}

.btn-outline-light {
    background: transparent;
    border: 2px solid var(--text-white);
    color: var(--text-white);
}

.btn-outline-light:hover {
    background: var(--text-white);
    color: var(--primary-color);
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* Header/Navigation */
.navbar {
    background: rgba(44, 62, 80, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px var(--shadow-light);
    transition: var(--transition-normal);
    z-index: 1000;
}

.navbar-brand {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--text-white) !important;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.navbar-nav .nav-link {
    color: var(--text-white) !important;
    font-weight: 500;
    position: relative;
    margin: 0 var(--spacing-xs);
    transition: var(--transition-fast);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section h1 {
    font-size: var(--font-size-hero);
    color: var(--text-white) !important;
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section .lead {
    font-size: 1.25rem;
    color: var(--text-white) !important;
    margin-bottom: var(--spacing-xl);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Particles Animation */
.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.3;
}

.particles-canvas::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--text-white);
    border-radius: 50%;
    animation: float1 6s ease-in-out infinite;
    top: 10%;
    left: 10%;
}

.particles-canvas::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: float2 8s ease-in-out infinite;
    top: 60%;
    right: 20%;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    25% { transform: translateY(-15px) translateX(10px); }
    75% { transform: translateY(15px) translateX(-10px); }
}

/* Vision Section */
.bg-light {
    background: var(--gradient-card) !important;
}

/* Cards and Projects Section */
.card {
    border: none;
    border-radius: var(--border-radius-large);
    overflow: hidden;
    transition: var(--transition-normal);
    background: var(--gradient-card);
    box-shadow: 0 10px 30px var(--shadow-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-medium);
}

.card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

.card-img-top {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
    margin: 0 auto;
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

.card-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: center;
}

.card-title {
    color: var(--text-primary);
    font-family: var(--font-primary);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--text-secondary);
    flex-grow: 1;
}

/* Timeline for Events Section */
.timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding-left: var(--spacing-lg);
}

.timeline-marker {
    position: absolute;
    left: -var(--spacing-sm);
    top: var(--spacing-xs);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--text-white);
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-content {
    background: var(--text-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px var(--shadow-light);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 20px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 10px 10px 0;
    border-color: transparent var(--text-white) transparent transparent;
}

/* Behind the Scenes - Parallax Section */
.parallax-bg {
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    background-attachment: fixed;
    position: relative;
}

.parallax-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.parallax-bg .container {
    position: relative;
    z-index: 2;
}

/* Contact Section */
.form-label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form-control, .form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    transition: var(--transition-fast);
    background: var(--text-white);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
    outline: none;
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

/* Modal Styles */
.modal-content {
    border: none;
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: 0 20px 60px var(--shadow-dark);
}

.modal-header {
    background: var(--gradient-primary);
    color: var(--text-white);
    border-bottom: none;
}

.modal-title {
    color: var(--text-white) !important;
}

.btn-close {
    filter: brightness(0) invert(1);
}

/* Footer */
footer {
    background: var(--background-dark) !important;
    color: var(--text-white);
    position: relative;
}

footer h5 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-primary);
}

footer p, footer li {
    color: #BDC3C7;
}

footer a {
    color: #BDC3C7;
    transition: var(--transition-fast);
}

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

footer .list-unstyled {
    list-style: none;
}

footer .list-unstyled li {
    margin-bottom: var(--spacing-xs);
}

.social-links a {
    color: #BDC3C7;
    margin-right: var(--spacing-sm);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-small);
    transition: var(--transition-fast);
}

.social-links a:hover {
    color: var(--text-white);
    background: var(--primary-color);
}

/* Success Page Styles */
.success-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--text-white);
}

.success-content {
    text-align: center;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-large);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

/* Privacy and Terms Pages */
.privacy-page, .terms-page {
    padding-top: 100px;
}

.privacy-page .container, .terms-page .container {
    max-width: 800px;
}

/* Animation Classes */
.animate-fadeInUp {
    animation: fadeInUp 1s ease forwards;
    opacity: 0;
    transform: translateY(30px);
}

.animate-fadeInUp:nth-child(2) { animation-delay: 0.2s; }
.animate-fadeInUp:nth-child(3) { animation-delay: 0.4s; }
.animate-fadeInUp:nth-child(4) { animation-delay: 0.6s; }

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

/* Read More Links */
.read-more {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    position: relative;
    display: inline-block;
    transition: var(--transition-fast);
}

.read-more::after {
    content: ' →';
    transition: var(--transition-fast);
}

.read-more:hover {
    color: var(--primary-dark);
    transform: translateX(5px);
}

/* Responsive Design */
@media (max-width: 992px) {
    :root {
        --font-size-hero: 2.5rem;
        --font-size-h1: 2rem;
        --font-size-h2: 1.75rem;
    }
    
    .hero-section {
        background-attachment: scroll;
    }
    
    .parallax-bg {
        background-attachment: scroll;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-hero: 2rem;
        --font-size-h1: 1.75rem;
        --font-size-h2: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }
    
    .hero-section .lead {
        font-size: 1.125rem;
    }
    
    .timeline {
        padding-left: var(--spacing-md);
    }
    
    .timeline-item {
        padding-left: var(--spacing-md);
    }
    
    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 1.75rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
    
    .card-image {
        height: 200px;
    }
    
    .display-3, .display-4 {
        font-size: 2rem;
    }
}

/* Glassmorphism Effects */
.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-large);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Hyperrealistic Textures */
.texture-paper {
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%);
}

.texture-fabric {
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(255, 255, 255, 0.1) 2px, rgba(255, 255, 255, 0.1) 4px);
}

/* Utility Classes */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-soft {
    box-shadow: 0 10px 40px var(--shadow-light);
}

.shadow-strong {
    box-shadow: 0 20px 60px var(--shadow-medium);
}

.border-gradient {
    border: 2px solid;
    border-image: var(--gradient-primary) 1;
    border-radius: var(--border-radius);
}

/* Loading Animation */
.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Hover Effects Enhancement */
.hover-lift {
    transition: var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--shadow-medium);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}