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

/* Font Faces */
@font-face {
    font-family: 'Inter Tight';
    src: url('../fonts/InterTight-VariableFont_wght.ttf') format('truetype');
    font-weight: 100 900;
    font-display: swap;
}

@font-face {
    font-family: 'Manrope';
    src: url('../fonts/Manrope-Regular.ttf') format('truetype');
    font-weight: 400;
    font-display: swap;
}

/* CSS Variables - New Design System */
:root {
    /* Primary Colors */
    --color-primary-dark: #000000;
    --color-secondary-dark: #181818;
    --color-accent-orange: #FF9900;
    --color-text-dark: #333333;
    --color-text-light: #ffffff;
    
    /* Background Colors */
    --color-light-gray: #f0f0f0;
    --color-medium-gray: #e8e8e8;
    
    /* Service Card Colors */
    --color-service-1: #2a2a2a;
    --color-service-2: #3a3a3a;
    --color-service-3: #1a1a1a;
    --color-service-4: #252525;
    
    /* Legacy support */
    --color-black: var(--color-primary-dark);
    --color-white: #ffffff;
    --color-orange: var(--color-accent-orange);
    --color-gray: var(--color-secondary-dark);
    --color-gray-light: var(--color-light-gray);
    --color-gray-medium: #666666;
    
    /* Smoke and Glow Effects */
    --color-smoke-light: rgba(24, 24, 24, 0.1);
    --color-smoke-medium: rgba(24, 24, 24, 0.3);
    --color-smoke-dark: rgba(24, 24, 24, 0.7);
    --color-orange-glow: rgba(255, 153, 0, 0.3);
    --color-orange-bright: rgba(255, 153, 0, 0.6);
    
    /* Gradient Variables for Smoke Effects */
    --gradient-smoke-main: radial-gradient(ellipse at 30% 70%, rgba(24,24,24,0.9) 0%, rgba(0,0,0,0.95) 70%);
    --gradient-smoke-secondary: radial-gradient(ellipse at 70% 30%, rgba(0,0,0,0.8) 0%, transparent 60%);
    --gradient-orange-glow: radial-gradient(circle, rgba(255,153,0,0.15) 0%, transparent 70%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* 3D Silk Effect Gradients */
    --silk-gradient-1: radial-gradient(ellipse 200% 100% at 50% 0%, rgba(40,40,40,0.9) 0%, transparent 50%);
    --silk-gradient-2: radial-gradient(ellipse 150% 80% at 80% 20%, rgba(60,60,60,0.7) 0%, transparent 60%);
    --silk-gradient-3: radial-gradient(ellipse 120% 70% at 20% 80%, rgba(30,30,30,0.8) 0%, transparent 55%);
    
    /* Fonts */
    --font-heading: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Container System */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    --full-width-bg: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
    
    /* Global Layout */
    --global-bg-gradient: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 50%, #f8f9fa 100%);
    
    /* Transitions */
    --transition-base: 0.3s ease;
    --transition-fast: 0.2s ease;
    
    /* Premium Shadows and Glows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.3);
    
    /* Glow Effects */
    --glow-orange: 0 0 20px rgba(255, 153, 0, 0.4);
    --glow-orange-strong: 0 0 30px rgba(255, 153, 0, 0.6);
    --glow-white: 0 0 15px rgba(255, 255, 255, 0.3);
    
    /* Glass Effects */
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
    --glass-blur: blur(20px);
    --glass-bg: rgba(255, 255, 255, 0.1);
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-text-dark);
    background: var(--global-bg-gradient);
    min-height: 100vh;
}

/* Global wrapper for desktop */
.global-wrapper {
    min-height: 100vh;
    background: var(--global-bg-gradient);
}

/* Main content wrapper */
.main-content {
    position: relative;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-medium);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

a:hover {
    color: var(--color-white);
}

/* Container System */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    position: relative;
    z-index: 2;
}

/* Full width sections with individual backgrounds */
.section-wrapper {
    width: 100%;
    position: relative;
}

.section-wrapper--light {
    background: var(--color-light-gray);
}

.section-wrapper--medium {
    background: var(--color-medium-gray);
}

.section-wrapper--dark {
    background: var(--color-primary-dark);
}

.section-wrapper--hero {
    background: radial-gradient(ellipse at center, #373737 0%, #000000 70%);
    background-image: url('../img/hero_hookah_waves.webp'), radial-gradient(ellipse at center, #373737 0%, #000000 70%);
    background-size: contain;
    background-position: center right;
    background-repeat: no-repeat;
}

/* Premium Interactive Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 48px; /* Touch-friendly minimum */
    min-width: 120px;
    border: none;
    border-radius: var(--border-radius-lg);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    z-index: 10;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s;
    z-index: -1;
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent-orange) 0%, #e68a00 100%);
    color: var(--color-white);
    box-shadow: var(--glow-orange);
    border: 1px solid rgba(255, 153, 0, 0.3);
}

.btn--primary:hover {
    background: linear-gradient(135deg, #e68a00 0%, var(--color-accent-orange) 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--glow-orange-strong), var(--shadow-lg);
}

.btn--primary:active {
    transform: translateY(-1px) scale(0.98);
    transition: all 0.1s;
}

.btn--secondary {
    background: var(--color-white);
    color: var(--color-text-dark);
    border: 1px solid var(--color-white);
}

.btn--secondary:hover {
    background: var(--color-accent-orange);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--large {
    padding: var(--spacing-lg) var(--spacing-xl);
    min-height: 56px;
    min-width: 160px;
    font-size: 1.125rem;
}

/* Focus states for accessibility */
.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-orange-glow);
}

.btn:focus:not(:focus-visible) {
    box-shadow: var(--glow-orange);
}

/* Loading state */
.btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Section Styles */
section {
    padding: var(--spacing-xxl) 0;
}

.section__title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-black);
}

/* Header - New Dark Design */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-primary-dark);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.header.scrolled {
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-xl);
}

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

.header__logo .logo {
    height: 40px;
    width: auto;
}

.header__nav {
    display: flex;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav__link {
    font-weight: 500;
    color: var(--color-text-light);
    transition: var(--transition-base);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
}

.nav__link:hover {
    color: var(--color-accent-orange);
    background-color: rgba(255, 153, 0, 0.1);
}

.header__contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header__phone {
    font-weight: 600;
    color: var(--color-text-light);
    transition: var(--transition-base);
}

.header__phone:hover {
    color: var(--color-accent-orange);
}

.burger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.burger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-white);
    margin: 3px 0;
    transition: var(--transition-base);
}

/* Hero Section - New Design */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    min-height: 60vh;
}

.hero__content {
    z-index: 2;
}

.hero__title {
    margin-bottom: var(--spacing-md);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
}

.hero__subtitle {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
    color: var(--color-accent-orange);
    font-weight: 600;
}

.hero__description {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.hero__cta {
    margin-top: var(--spacing-lg);
}

.hero__image {
    /* Пустой блок для правильной структуры грида на десктопе */
}

.hero__image-main {
    display: none;
}

@keyframes floatImage {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* About Section */
.about {
    position: relative;
}

.about__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about__text p {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

/* Services Section */
.services {
    position: relative;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-card {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    color: var(--color-text-light);
}

.service-card:nth-child(1) {
    background: var(--color-service-1);
}

.service-card:nth-child(2) {
    background: var(--color-service-2);
}

.service-card:nth-child(3) {
    background: var(--color-service-3);
}

.service-card:nth-child(4) {
    background: var(--color-service-4);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), 0 0 20px rgba(255, 153, 0, 0.3);
}

/* Tobacco Showcase Section */
.tobacco-showcase {
    position: relative;
}

.tobacco-showcase__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    min-height: 500px;
}

.tobacco-showcase__image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tobacco-showcase__image-main {
    width: 100%;
    max-width: 500px;
    height: auto;
    object-fit: cover;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
}

.tobacco-showcase__content {
    padding: var(--spacing-lg);
}

.tobacco-showcase__title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-dark);
    font-weight: 700;
}

.tobacco-showcase__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}

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

.stat-item__number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-accent-orange);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-heading);
}

.stat-item__label {
    font-size: 0.9rem;
    color: var(--color-text-dark);
    font-weight: 500;
    line-height: 1.4;
}

.tobacco-showcase__cta {
    margin-top: var(--spacing-lg);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--color-accent-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(255, 153, 0, 0.3);
}

.service-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-weight: 600;
}

.service-card__description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    line-height: 1.5;
}

/* Advanced Calculator Section - Glass Morphism Design */
.calculator {
    position: relative;
    background: linear-gradient(135deg, var(--color-medium-gray) 0%, var(--color-light-gray) 100%);
}

.calculator__header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.calculator__subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-lg);
}

.calculator__badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-md);
}

.calculator__badge-icon {
    margin-right: var(--spacing-sm);
    font-size: 1.125rem;
}

.calculator__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    max-width: 1400px;
    margin: 0 auto;
}

/* Controls Column */
.calculator__controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.calculator__section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.calculator__section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,153,0,0.02) 0%, transparent 50%);
    pointer-events: none;
}

.calculator__section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 153, 0, 0.3);
}

.calculator__section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.calculator__section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.calculator__value-display {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-secondary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
}

/* Slider Styles */
.calculator__slider-container {
    position: relative;
}

.calculator__slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(to right, var(--color-accent-orange) 0%, #e5e7eb 0%);
    outline: none;
    -webkit-appearance: none;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
}

.calculator__slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-orange) 0%, #e68a00 100%);
    cursor: pointer;
    box-shadow: var(--glow-orange);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid var(--color-white);
}

.calculator__slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--glow-orange-strong);
}

.calculator__slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-orange) 0%, #e68a00 100%);
    cursor: pointer;
    border: 2px solid var(--color-white);
    box-shadow: var(--glow-orange);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.calculator__slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--glow-orange-strong);
}

.calculator__slider:focus {
    box-shadow: 0 0 0 3px var(--color-orange-glow);
}

.calculator__slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-gray-medium);
    margin-top: var(--spacing-xs);
}

/* Grid Options */
.calculator__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.calculator__option {
    padding: var(--spacing-md) var(--spacing-sm);
    min-height: 48px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    user-select: none;
    color: var(--color-text-dark);
}

.calculator__option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.calculator__option:hover::before {
    transform: translateX(100%);
}

.calculator__option:hover {
    background: rgba(255, 153, 0, 0.1);
    border-color: var(--color-accent-orange);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.calculator__option.active {
    background: linear-gradient(135deg, var(--color-accent-orange) 0%, #e68a00 100%);
    color: var(--color-white);
    border-color: var(--color-accent-orange);
    box-shadow: var(--glow-orange);
    transform: translateY(-1px);
}

.calculator__option:active {
    transform: translateY(0) scale(0.95);
    transition: all 0.1s;
}

.calculator__capacity-info {
    font-size: 0.9rem;
    color: var(--color-gray-medium);
    text-align: center;
    font-style: italic;
}

/* Staff Section */
.calculator__staff-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.calculator__staff-count {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.calculator__staff-note {
    font-size: 0.9rem;
    color: var(--color-gray-medium);
}

/* Custom Checkbox */
.calculator__checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    padding-left: 2rem;
    user-select: none;
}

.calculator__checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.calculator__checkbox-mark {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 18px;
    width: 18px;
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.calculator__checkbox:hover .calculator__checkbox-mark {
    border-color: var(--color-accent-orange);
    background: rgba(255, 153, 0, 0.1);
}

.calculator__checkbox input:checked ~ .calculator__checkbox-mark {
    background: var(--color-accent-orange);
    border-color: var(--color-accent-orange);
}

.calculator__checkbox input:checked ~ .calculator__checkbox-mark::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.calculator__checkbox-text {
    font-size: 0.9rem;
    color: var(--color-text-dark);
}

/* Custom Radio Buttons */
.calculator__radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.calculator__radio {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    padding: var(--spacing-md);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-lg);
    background: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
    user-select: none;
}

.calculator__radio:hover {
    background: rgba(255, 153, 0, 0.05);
    border-color: var(--color-accent-orange);
}

.calculator__radio input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.calculator__radio-mark {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid rgba(0, 0, 0, 0.2);
    margin-right: var(--spacing-md);
    flex-shrink: 0;
    transition: all 0.3s ease;
    position: relative;
}

.calculator__radio input:checked ~ .calculator__radio-mark {
    background: var(--color-accent-orange);
    border-color: var(--color-accent-orange);
}

.calculator__radio input:checked ~ .calculator__radio-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
}

.calculator__radio-content {
    display: flex;
    flex-direction: column;
    gap: 0px;
}

.calculator__radio-text {
    font-weight: 500;
    color: var(--color-text-dark);
}

.calculator__radio-price {
    font-size: 0.85rem;
    color: var(--color-gray-medium);
}

/* Summary Column */
.calculator__summary {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.calculator__price-card {
    background: var(--color-primary-dark);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 153, 0, 0.3);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    color: var(--color-white);
    opacity: 1;
    animation: none;
}

.calculator__price-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,153,0,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.calculator__price-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.calculator__price-header h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.calculator__total-price {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-accent-orange);
    text-shadow: var(--glow-orange);
    line-height: 1;
}

/* Price Breakdown */
.calculator__breakdown {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.calculator__breakdown-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
}

.calculator__breakdown-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.calculator__breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-sm) 0;
    font-weight: 500;
}

.calculator__breakdown-item:first-child {
    color: var(--color-white);
    font-weight: 700;
    font-size: 1rem;
}

.calculator__breakdown-item + .calculator__breakdown-item {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-sm);
}

/* Action Buttons */
.calculator__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Order Form */
.calculator__order-form {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    animation: slideInUp 0.5s ease;
}

.calculator__form-title {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.calculator__form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.calculator__form-actions .btn {
    flex: 1;
}

/* Individual Order Section */
.calculator__individual {
    margin-top: var(--spacing-xxl);
    grid-column: 1 / -1;
}

.calculator__individual-content {
    background: linear-gradient(135deg, rgba(255, 153, 0, 0.1) 0%, rgba(255, 153, 0, 0.05) 100%);
    border: 2px solid rgba(255, 153, 0, 0.2);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.calculator__individual-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    pointer-events: none;
}

.calculator__individual-title {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.calculator__individual-text {
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
    line-height: 1.6;
}

/* Animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: var(--shadow-xl), var(--glow-orange);
    }
    50% {
        box-shadow: var(--shadow-xl), var(--glow-orange-strong);
    }
}

/* Removed breathing animation from price card */

/* Premium Form Styles */
.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 48px; /* Touch-friendly */
    border: 2px solid rgba(24, 24, 24, 0.1);
    border-radius: var(--border-radius-lg);
    font-size: 1rem;
    font-family: var(--font-body);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-orange-castor);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--glow-orange), var(--shadow-md);
    transform: translateY(-2px);
}

.form-input:hover:not(:focus) {
    border-color: rgba(24, 24, 24, 0.2);
    background: rgba(255, 255, 255, 0.8);
}

.form-input::placeholder {
    color: var(--color-gray-medium);
    transition: var(--transition-base);
}

.form-input:focus::placeholder {
    color: rgba(102, 102, 102, 0.6);
    transform: translateY(-2px);
}

/* Floating label effect */
.form-group.has-floating-label {
    position: relative;
}

.form-group.has-floating-label .form-label {
    position: absolute;
    top: 50%;
    left: var(--spacing-lg);
    transform: translateY(-50%);
    background: var(--color-white);
    padding: 0 var(--spacing-xs);
    color: var(--color-gray-medium);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    z-index: 3;
}

.form-group.has-floating-label .form-input:focus + .form-label,
.form-group.has-floating-label .form-input:not(:placeholder-shown) + .form-label {
    top: 0;
    left: var(--spacing-md);
    font-size: 0.8rem;
    color: var(--color-orange-castor);
    font-weight: 600;
}

/* Textarea specific styles */
textarea.form-input {
    min-height: 120px;
    resize: vertical;
    font-family: var(--font-body);
    line-height: 1.5;
}

/* Input states */
.form-input:disabled {
    background: rgba(245, 245, 245, 0.5);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-input:valid:not(:placeholder-shown) {
    border-color: #28a745;
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

/* Advantages Section */
.advantages {
    position: relative;
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.advantage-card {
    background-color: var(--color-gray-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition-base);
}

.advantage-card:hover {
    background-color: var(--color-orange);
    color: var(--color-white);
    transform: translateY(-3px);
}

.advantage-card__title {
    font-size: 1.125rem;
    margin-bottom: 0;
}

/* Contacts Section */
.contacts {
    position: relative;
}

.contacts__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.contact-item strong {
    color: var(--color-black);
}

.contact-item a {
    color: var(--color-orange);
    font-weight: 600;
}

.contacts__form {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.contacts__form-title {
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

/* Footer */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

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

.footer__info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.footer__logo .logo {
    height: 30px;
    width: auto;
}

.footer__copyright {
    color: var(--color-gray-medium);
    margin-bottom: 0;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: right;
}

.footer__link {
    color: var(--color-gray-medium);
    font-size: 0.9rem;
}

.footer__socials {
    display: flex;
    gap: var(--spacing-md);
}

.footer__social {
    color: var(--color-gray-medium);
    transition: var(--transition-base);
}

.footer__social:hover {
    color: var(--color-orange);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
}

.modal.active {
    display: flex;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal__content {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideIn 0.3s ease;
}

.modal__close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-gray-medium);
    transition: var(--transition-base);
}

.modal__close:hover {
    color: var(--color-black);
}

.modal__title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-orange);
}

.modal__message {
    margin-bottom: 0;
    color: var(--color-gray-medium);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

@keyframes glow {
    0%, 100% { box-shadow: var(--glow-orange); }
    50% { box-shadow: var(--glow-orange-strong); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Form Error Styles */
.form-input.error {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.focused .form-input {
    border-color: var(--color-orange);
}

/* Animation Classes */
.service-card,
.advantage-card,
.about__content,
.contacts__content {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.animate-in,
.advantage-card.animate-in,
.about__content.animate-in,
.contacts__content.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Animation */
.service-card:nth-child(1) { transition-delay: 0.1s; }
.service-card:nth-child(2) { transition-delay: 0.2s; }
.service-card:nth-child(3) { transition-delay: 0.3s; }
.service-card:nth-child(4) { transition-delay: 0.4s; }

.advantage-card:nth-child(1) { transition-delay: 0.1s; }
.advantage-card:nth-child(2) { transition-delay: 0.2s; }
.advantage-card:nth-child(3) { transition-delay: 0.3s; }
.advantage-card:nth-child(4) { transition-delay: 0.4s; }
.advantage-card:nth-child(5) { transition-delay: 0.5s; }
.advantage-card:nth-child(6) { transition-delay: 0.6s; }

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-orange {
    color: var(--color-orange);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mt-0 {
    margin-top: 0;
}

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

/* ========================================
   DESKTOP CALCULATOR OPTIMIZATIONS
======================================== */

/* Desktop Calculator Optimizations - Min 768px */
@media (min-width: 768px) {
    /* More compact layout for desktop */
    .calculator__content {
        gap: var(--spacing-lg);
    }
    
    /* Tighter spacing for desktop calculator sections */
    .calculator__section {
        padding: var(--spacing-md);
    }
    
    /* More compact price card on desktop */
    .calculator__price-card {
        padding: var(--spacing-md);
        max-height: fit-content;
    }
    
    .calculator__price-header {
        margin-bottom: var(--spacing-md);
    }
    
    .calculator__price-header h3 {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .calculator__total-price {
        font-size: clamp(2rem, 4vw, 2.8rem);
        line-height: 1.1;
    }
    
    /* Enhanced breakdown readability on desktop */
    .calculator__breakdown {
        padding: var(--spacing-sm);
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.15);
    }
    
    .calculator__breakdown-title {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-sm);
        font-weight: 700;
        color: rgba(255, 255, 255, 0.95);
    }
    
    .calculator__breakdown-item {
        padding: var(--spacing-xs) 0;
        font-size: 0.875rem;
        color: rgba(255, 255, 255, 0.9);
        font-weight: 500;
    }
    
    .calculator__breakdown-item:first-child {
        font-size: 0.9rem;
        font-weight: 700;
        color: var(--color-white);
    }
    
    .calculator__breakdown-item + .calculator__breakdown-item {
        padding-top: var(--spacing-xs);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    /* Tighter section spacing on desktop */
    .calculator__section-header {
        margin-bottom: var(--spacing-md);
    }
    
    .calculator__section-title {
        font-size: 1.125rem;
    }
    
    /* More compact action buttons */
    .calculator__actions {
        gap: var(--spacing-sm);
    }
    
    /* Reduced slider container margins */
    .calculator__slider-container {
        margin-bottom: var(--spacing-sm);
    }
    
    .calculator__slider {
        margin-bottom: var(--spacing-sm);
    }
    
    /* Tighter grid spacing */
    .calculator__grid {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .calculator__option {
        padding: var(--spacing-sm);
        min-height: 44px;
        font-size: 0.875rem;
    }
    
    /* More compact radio buttons */
    .calculator__radio {
        padding: var(--spacing-sm);
    }
    
    .calculator__radio-group {
        gap: var(--spacing-sm);
    }
    
    /* More compact individual order section on desktop */
    .calculator__individual {
        margin-top: var(--spacing-lg);
    }
    
    .calculator__individual-content {
        padding: var(--spacing-lg);
    }
    
    .calculator__individual-title {
        font-size: clamp(1.25rem, 2.5vw, 1.75rem);
        margin-bottom: var(--spacing-sm);
    }
    
    .calculator__individual-text {
        margin-bottom: var(--spacing-md);
        font-size: 1rem;
    }
}

/* Large Desktop Optimizations - Min 1024px */
@media (min-width: 1024px) {
    .calculator__content {
        max-width: 1200px;
        gap: var(--spacing-xl);
    }
    
    .calculator__section {
        padding: var(--spacing-lg);
    }
    
    .calculator__price-card {
        padding: var(--spacing-lg);
    }
    
    .calculator__breakdown {
        padding: var(--spacing-md);
    }
    
    .calculator__total-price {
        font-size: clamp(2.5rem, 4vw, 3.2rem);
    }
}