/* ========================================
   PROFESSIONAL CSS - HR OUTSOURCING SITE
   Modern, Clean, Mobile-First Design
   Version 2.0 - Enhanced Professional Design
   ======================================== */

/* CSS Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Professional Color Palette - Enhanced */
    --primary: #0052cc;
    --primary-dark: #003d99;
    --primary-light: #4d8fdd;
    --primary-gradient: linear-gradient(135deg, #0052cc 0%, #003d99 100%);
    --secondary: #0a1628;
    --secondary-light: #172a46;
    --accent: #ff6b35;
    --accent-hover: #e55a27;
    --accent-gradient: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);

    /* Neutral Colors - Refined */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --error: #ef4444;
    --error-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Enhanced Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
    --shadow-primary: 0 10px 40px -10px rgba(0, 82, 204, 0.4);
    --shadow-accent: 0 10px 40px -10px rgba(255, 107, 53, 0.4);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* Border Radius - Enhanced */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Transitions - Refined */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Container */
    --container-max: 1280px;
    --container-padding: 1rem;
}

@media (min-width: 768px) {
    :root {
        --container-padding: 1.5rem;
    }
}

@media (min-width: 1024px) {
    :root {
        --container-padding: 2rem;
    }
}

/* Base Styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

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

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition);
}

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

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) 0;
    gap: var(--spacing-4);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    flex-shrink: 0;
}

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

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

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.nav-menu>li {
    position: relative;
}

.nav-menu>li>a {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    font-weight: 500;
    font-size: 15px;
    color: var(--gray-700);
    border-radius: var(--radius);
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-menu>li>a:hover,
.nav-menu>li>a.active {
    color: var(--primary);
    background-color: var(--gray-50);
}

.nav-menu>li>a i {
    font-size: var(--font-size-xs);
    transition: transform var(--transition);
}

.nav-menu>li:hover>a i {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 260px;
    padding: var(--spacing-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--gray-600);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.dropdown-menu a:hover {
    color: var(--primary);
    background-color: var(--gray-50);
}

.dropdown-menu a i {
    width: 20px;
    color: var(--primary);
}

/* Header Contacts */
.header-contacts {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    flex-shrink: 0;
}

.header-contacts a {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: 500;
    font-size: 15px;
    color: var(--gray-700);
    white-space: nowrap;
}

.header-contacts a:hover {
    color: var(--primary);
}

.header-contacts .btn {
    display: inline-flex;
    white-space: nowrap;
}

/* Burger Menu */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.burger-menu span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: all var(--transition);
}

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

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

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   BUTTONS - Enhanced
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px -10px rgba(0, 82, 204, 0.5);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--accent-gradient);
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px -10px rgba(255, 107, 53, 0.5);
}

.btn-large {
    padding: var(--spacing-5) var(--spacing-10);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-xl);
}

.btn-small {
    padding: var(--spacing-2) var(--spacing-5);
    font-size: var(--font-size-sm);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--spacing-20) 0 var(--spacing-24);
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, var(--white), transparent);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 950px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: clamp(var(--font-size-3xl), 6vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 2.5vw, var(--font-size-xl));
    opacity: 0.95;
    margin-bottom: var(--spacing-10);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-5);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-12);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-10);
    flex-wrap: wrap;
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-base);
    font-weight: 500;
}

.feature-item i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ========================================
   SECTIONS - Enhanced
   ======================================== */
.section-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
    letter-spacing: -0.02em;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    margin: var(--spacing-4) auto 0;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-500);
    font-size: var(--font-size-lg);
    max-width: 700px;
    margin: 0 auto var(--spacing-16);
    line-height: 1.8;
}

/* Light background section subtitle adjustment */
.why-us-section .section-subtitle,
.about-section .section-subtitle {
    color: var(--gray-600);
}

.about-section,
.services-section,
.experts-section,
.why-us-section,
.contact-form-section {
    padding: var(--spacing-20) 0;
}

.about-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

/* ========================================
   ABOUT SECTION - Enhanced
   ======================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: start;
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-20);
    }
}

.about-text p {
    margin-bottom: var(--spacing-6);
    color: var(--gray-600);
    line-height: 1.9;
    font-size: var(--font-size-lg);
}

.about-text p:first-of-type::first-letter {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary);
    float: left;
    margin-right: var(--spacing-2);
    line-height: 1;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* Advantages Grid - Enhanced */
.advantages-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-5);
}

@media (min-width: 640px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.advantage-card {
    background: var(--white);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition);
}

.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.advantage-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-5);
    box-shadow: var(--shadow-primary);
}

.advantage-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.advantage-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-3);
    color: var(--gray-900);
}

.advantage-card p {
    font-size: var(--font-size-base);
    color: var(--gray-500);
    line-height: 1.7;
}

/* ========================================
   SERVICES SECTION - Enhanced
   ======================================== */
.services-section {
    background: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--white);
    padding: var(--spacing-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all var(--transition-slow);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-slow);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 90px;
    height: 90px;
    background: var(--primary-gradient);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-8);
    transition: all var(--transition);
    box-shadow: var(--shadow-primary);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 15px 50px -15px rgba(0, 82, 204, 0.5);
}

.service-icon i {
    font-size: var(--font-size-4xl);
    color: var(--white);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
}

.service-card p {
    color: var(--gray-500);
    margin-bottom: var(--spacing-8);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.service-card .btn {
    width: 100%;
}

/* ========================================
   EXPERTS SECTION - Enhanced
   ======================================== */
.experts-section {
    background: var(--white);
}

.experts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 640px) {
    .experts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .experts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.expert-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all var(--transition-slow);
    border: 1px solid var(--gray-100);
}

.expert-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: transparent;
}

.expert-photo {
    width: 130px;
    height: 130px;
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--spacing-8) auto var(--spacing-5);
    border: 5px solid var(--white);
    box-shadow: 0 0 0 4px var(--primary), var(--shadow-lg);
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.expert-card:hover .expert-photo {
    box-shadow: 0 0 0 4px var(--accent), var(--shadow-xl);
    transform: scale(1.05);
}

.expert-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-photo i {
    font-size: 56px;
    color: var(--gray-400);
}

.expert-info {
    padding: 0 var(--spacing-8) var(--spacing-8);
    text-align: center;
}

.expert-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
    color: var(--gray-900);
}

.expert-position {
    color: var(--primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.expert-experience {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-5);
}

.expert-skills {
    text-align: left;
    border-top: 1px solid var(--gray-100);
    padding-top: var(--spacing-5);
}

.expert-skills li {
    padding: var(--spacing-2) 0;
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.expert-skills li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ========================================
   WHY US SECTION - Enhanced
   ======================================== */
.why-us-section {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .why-us-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.why-us-item {
    background: var(--white);
    padding: var(--spacing-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all var(--transition-slow);
    border: 1px solid transparent;
    position: relative;
}

.why-us-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-2xl);
    padding: 2px;
    background: var(--primary-gradient);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition);
}

.why-us-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.why-us-item:hover::after {
    opacity: 1;
}

.why-us-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    transition: all var(--transition);
    box-shadow: var(--shadow-primary);
}

.why-us-item:hover .why-us-icon {
    transform: scale(1.1) rotate(5deg);
}

.why-us-icon i {
    font-size: var(--font-size-3xl);
    color: var(--white);
}

.why-us-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-3);
    color: var(--gray-900);
}

.why-us-item p {
    color: var(--gray-500);
    font-size: var(--font-size-base);
    line-height: 1.7;
}

/* ========================================
   CONTACT FORM SECTION - Enhanced
   ======================================== */
.contact-form-section {
    background: var(--secondary);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.contact-form-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 82, 204, 0.3) 0%, transparent 70%);
    pointer-events: none;
}

.form-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: center;
    position: relative;
    z-index: 1;
}

@media (min-width: 1024px) {
    .form-wrapper {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--spacing-20);
    }
}

.form-content h2 {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 800;
    margin-bottom: var(--spacing-5);
    line-height: 1.2;
}

.form-content>p {
    opacity: 0.85;
    margin-bottom: var(--spacing-10);
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--spacing-5);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: rgba(255, 255, 255, 0.95);
    color: var(--gray-800);
    transition: all var(--transition);
    font-weight: 500;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    background: var(--white);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
    transform: translateY(-2px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
    font-weight: 400;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    flex-direction: row;
    align-items: flex-start;
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--accent);
}

.form-benefits {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    padding: var(--spacing-10);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-benefits h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-8);
}

.form-benefits ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.form-benefits li {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    font-size: var(--font-size-lg);
}

.form-benefits li i {
    width: 28px;
    height: 28px;
    background: var(--success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

/* ========================================
   FOOTER - Enhanced
   ======================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-20) 0 var(--spacing-10);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 640px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-5);
}

.footer-logo i {
    color: var(--primary-light);
}

.footer-logo img {
    height: 45px;
}

.footer-col>p {
    color: var(--gray-400);
    margin-bottom: var(--spacing-6);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-links a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all var(--transition);
    font-size: var(--font-size-lg);
}

.social-links a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary);
}

.footer-col h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-6);
    position: relative;
    padding-bottom: var(--spacing-3);
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: var(--radius-full);
}

.footer-col ul li {
    margin-bottom: var(--spacing-4);
}

.footer-col ul li a {
    color: var(--gray-400);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-base);
}

.footer-col ul li a:hover {
    color: var(--white);
    padding-left: var(--spacing-2);
}

.footer-col ul li i {
    color: var(--primary-light);
    width: 22px;
    font-size: var(--font-size-sm);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: var(--spacing-10);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

.privacy-link {
    color: var(--gray-400);
    font-size: var(--font-size-sm);
    transition: color var(--transition);
}

.privacy-link:hover {
    color: var(--primary-light);
}

/* ========================================
   SCROLL TO TOP BUTTON - Enhanced
   ======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 54px;
    height: 54px;
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    transition: all var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-primary);
}

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

.scroll-top:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: 0 15px 40px -10px rgba(0, 82, 204, 0.5);
}

/* ========================================
   MODALS
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    max-width: 500px;
    width: 100%;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

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

.modal-large {
    max-width: 700px;
}

.modal-close {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    width: 36px;
    height: 36px;
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.modal-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    color: var(--gray-800);
    padding-right: var(--spacing-10);
}

/* Modal Form */
.modal .contact-form {
    gap: var(--spacing-4);
}

.modal .form-group input,
.modal .form-group textarea,
.modal .form-group select {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    color: var(--gray-700);
}

.modal .form-group input:focus,
.modal .form-group textarea:focus,
.modal .form-group select:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.modal .checkbox-group label {
    color: var(--gray-600);
}

/* ========================================
   CALCULATOR
   ======================================== */
.calculator-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.calculator-form label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
    display: block;
}

.calculator-form input,
.calculator-form select {
    width: 100%;
    padding: var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition);
}

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

.calculator-result {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--spacing-6) 0;
}

.calculator-result h3 {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    opacity: 0.9;
}

.calculator-result .price {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

/* ========================================
   BREADCRUMBS
   ======================================== */
.breadcrumbs {
    padding: var(--spacing-4) 0;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.breadcrumbs ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.breadcrumbs li {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
}

.breadcrumbs li::after {
    content: '/';
    color: var(--gray-400);
}

.breadcrumbs li:last-child::after {
    display: none;
}

.breadcrumbs a {
    color: var(--primary);
    transition: color var(--transition);
}

.breadcrumbs a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.breadcrumbs span {
    color: var(--gray-500);
}

/* ========================================
   UTILITIES
   ======================================== */
.text-center {
    text-align: center;
}

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

.bg-light {
    background: var(--gray-50);
}

/* ========================================
   DESKTOP RESPONSIVE (Large screens)
   ======================================== */

/* Экраны 1280px - 1440px */
@media (min-width: 1280px) and (max-width: 1440px) {
    .nav-menu > li > a {
        padding: var(--spacing-2) var(--spacing-3);
        font-size: 14px;
    }
    
    .header-contacts {
        gap: var(--spacing-3);
    }
    
    .header-contacts a {
        font-size: 14px;
    }
}

/* Экраны 1024px - 1280px */
@media (min-width: 1024px) and (max-width: 1279px) {
    .navbar {
        gap: var(--spacing-2);
    }
    
    .nav-menu {
        gap: 0;
    }
    
    .nav-menu > li > a {
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .header-contacts {
        gap: var(--spacing-2);
    }
    
    .header-contacts a {
        font-size: 12px;
    }
    
    .header-contacts .btn {
        padding: 6px 10px;
        font-size: 11px;
    }
    
    .logo {
        font-size: var(--font-size-base);
    }
}

/* ========================================
   MOBILE RESPONSIVE
   ======================================== */
@media (max-width: 1023px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-20) var(--spacing-6) var(--spacing-6);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-slow);
        overflow-y: auto;
        align-items: stretch;
        gap: 0;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu>li>a {
        padding: var(--spacing-4);
        border-bottom: 1px solid var(--gray-100);
        border-radius: 0;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: var(--gray-50);
        border-radius: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition);
    }

    .dropdown.active .dropdown-menu {
        max-height: 500px;
    }

    .dropdown-menu a {
        padding: var(--spacing-3) var(--spacing-6);
    }

    .burger-menu {
        display: flex;
    }

    .header-contacts {
        display: none;
    }
}

@media (max-width: 767px) {
    .hero {
        padding: var(--spacing-12) 0;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-features {
        flex-direction: column;
        gap: var(--spacing-4);
        align-items: center;
    }

    .about-section,
    .services-section,
    .experts-section,
    .why-us-section,
    .contact-form-section {
        padding: var(--spacing-12) 0;
    }

    .footer {
        padding: var(--spacing-12) 0 var(--spacing-6);
    }

    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 479px) {
    html {
        font-size: 14px;
    }

    .modal-content {
        padding: var(--spacing-6);
    }

    .expert-photo {
        width: 100px;
        height: 100px;
    }
}

/* ========================================
   ANIMATIONS - Enhanced
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

.animate-slideInLeft {
    animation: slideInLeft 0.6s ease forwards;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease forwards;
}

/* Mobile Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 999;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   LOADING SKELETON
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ========================================
   TOOLTIP
   ======================================== */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 100;
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* ========================================
   ENHANCED SECTION STYLES
   ======================================== */
.about-section {
    padding: var(--spacing-20) 0;
    background: var(--white);
}

.licenses-section {
    padding: var(--spacing-20) 0;
    background: var(--gray-50);
}

.licenses-cta {
    text-align: center;
    margin-top: var(--spacing-12);
}

.map-section {
    padding: 0;
}

.map-section #map {
    height: 450px;
    width: 100%;
    filter: grayscale(20%);
    transition: filter var(--transition);
}

.map-section #map:hover {
    filter: grayscale(0%);
}

.projects-section {
    padding: var(--spacing-20) 0;
    background: var(--white);
}

/* Enhanced Team Member Cards */
.team-member .team-info {
    padding: var(--spacing-4);
}

.team-member .experience {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: var(--spacing-2);
    line-height: 1.5;
}

/* Footer Logo Icon */
.footer-logo i {
    font-size: 2rem;
    color: var(--primary);
    margin-right: var(--spacing-2);
}

/* Enhanced Project Cards */
.project-card .project-image img {
    transition: transform var(--transition-slow);
}

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

/* Price Table Enhancements */
.price-table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--spacing-6);
}

.price-table {
    width: 100%;
    border-collapse: collapse;
}

.price-table th {
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--spacing-4);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    letter-spacing: 0.05em;
}

.price-table td {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
    vertical-align: top;
}

.price-table tbody tr {
    transition: background-color var(--transition);
}

.price-table tbody tr:hover {
    background-color: var(--gray-50);
}

.price-table tbody tr:last-child td {
    border-bottom: none;
}

/* Pricing Note */
.pricing-note {
    background: var(--info-light);
    border: 1px solid var(--info);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    margin-top: var(--spacing-8);
}

.pricing-note p {
    margin-bottom: var(--spacing-4);
    color: var(--gray-700);
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */
@media (max-width: 768px) {

    .price-table th,
    .price-table td {
        padding: var(--spacing-3);
        font-size: var(--font-size-sm);
    }

    .map-section #map {
        height: 300px;
    }
}

/* ========================================
   NEW CALCULATOR STYLES - Split Panel Design
   ======================================== */

.calculator-modal-content {
    max-width: 1200px;
    padding: 0;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.calculator-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    min-height: 600px;
}

/* Left Panel - Parameters */
.calculator-left {
    background: var(--white);
    padding: var(--spacing-10);
    overflow-y: auto;
    max-height: 80vh;
}

.calculator-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--spacing-8);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.calculator-title i {
    color: var(--primary);
    font-size: var(--font-size-4xl);
}

.calc-section {
    margin-bottom: var(--spacing-8);
}

.calc-label {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-4);
}

/* Service Tabs */
.calc-service-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3);
}

.calc-tab {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
}

.calc-tab i {
    font-size: var(--font-size-3xl);
    color: var(--gray-400);
    transition: all var(--transition);
}

.calc-tab span {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-600);
    transition: all var(--transition);
}

.calc-tab:hover {
    border-color: var(--primary);
    background: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.calc-tab:hover i {
    color: var(--primary);
}

.calc-tab.active {
    background: var(--primary-gradient);
    border-color: var(--primary);
    box-shadow: var(--shadow-primary);
}

.calc-tab.active i,
.calc-tab.active span {
    color: var(--white);
}

/* Slider */
.calc-slider-block {
    background: var(--gray-50);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    border: 2px solid var(--gray-200);
}

.calc-slider {
    width: 100%;
    height: 6px;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    outline: none;
    -webkit-appearance: none;
    margin-bottom: var(--spacing-4);
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.4);
    transition: all var(--transition);
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.3);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.6);
}

.calc-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.4);
}

.calc-slider-value {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary);
}

.calc-slider-value span {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Option Buttons */
.calc-buttons-group {
    display: grid;
    gap: var(--spacing-3);
}

.calc-btn-option {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
    transition: all var(--transition);
    text-align: left;
}

.calc-btn-option:hover {
    border-color: var(--primary);
    background: var(--white);
    transform: translateX(4px);
}

.calc-btn-option.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-primary);
}

/* Extras */
.calc-extras {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.calc-extra-item {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.calc-extra-item:hover {
    border-color: var(--primary);
    background: var(--white);
}

.calc-extra-item:has(input:checked) {
    background: rgba(0, 82, 204, 0.05);
    border-color: var(--primary);
}

.calc-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
}

.calc-extra-text {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-base);
    color: var(--gray-700);
}

.calc-extra-text i {
    color: var(--primary);
    font-size: var(--font-size-lg);
}

.calc-extra-text strong {
    color: var(--accent);
    margin-left: auto;
}

.calc-hint {
    background: var(--info-light);
    border-left: 4px solid var(--info);
    padding: var(--spacing-4);
    border-radius: var(--radius);
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-top: var(--spacing-6);
}

.calc-hint i {
    color: var(--info);
    margin-top: 2px;
}

/* Right Panel - Result */
.calculator-right {
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    padding: var(--spacing-10);
    display: flex;
    flex-direction: column;
}

.calc-result-box {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.calc-result-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-6);
    border-bottom: 2px solid var(--gray-200);
}

.calc-result-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-3xl);
    box-shadow: var(--shadow-primary);
}

.calc-result-title h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-800);
    margin: 0;
}

.calc-result-title p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: var(--spacing-1) 0 0;
}

.calc-result-price-block {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.calc-result-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: var(--spacing-2);
}

.calc-result-price {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.calc-result-period {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-top: var(--spacing-2);
}

.calc-result-breakdown {
    margin-bottom: var(--spacing-6);
}

.calc-breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: var(--font-size-sm);
}

.calc-breakdown-item:last-child {
    border-bottom: none;
}

.calc-breakdown-label {
    color: var(--gray-600);
}

.calc-breakdown-value {
    font-weight: 600;
    color: var(--gray-800);
}

.calc-result-benefits {
    display: flex;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.calc-benefit-badge {
    flex: 1;
    background: var(--success-light);
    border: 1px solid var(--success);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    text-align: center;
}

.calc-benefit-badge i {
    color: var(--success);
    font-size: var(--font-size-xl);
}

.calc-benefit-badge span {
    font-size: var(--font-size-xs);
    color: var(--gray-700);
}

.calc-benefit-badge strong {
    color: var(--success);
}

/* Form in Result */
.calc-form {
    margin-top: auto;
    padding-top: var(--spacing-6);
    border-top: 2px solid var(--gray-200);
}

.calc-form h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--spacing-4);
    text-align: center;
}

.calc-form input {
    width: 100%;
    padding: var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-3);
    transition: all var(--transition);
}

.calc-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.calc-form-agree {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
    cursor: pointer;
}

.calc-form-agree input {
    margin: 0;
    width: auto;
}

.btn-block {
    width: 100%;
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .calculator-modal-content {
        max-width: 95%;
        max-height: 90vh;
    }

    .calculator-container {
        grid-template-columns: 1fr;
    }

    .calculator-left,
    .calculator-right {
        max-height: none;
    }

    .calculator-right {
        padding: var(--spacing-6);
    }
}

@media (max-width: 768px) {
    .calculator-left {
        padding: var(--spacing-6);
    }

    .calculator-title {
        font-size: var(--font-size-2xl);
    }

    .calc-service-tabs {
        grid-template-columns: 1fr;
    }

    .calc-result-price {
        font-size: var(--font-size-4xl);
    }

    .calc-result-benefits {
        flex-direction: column;
    }
}