:root {

    --primary-dark: #0D111C;
    --secondary-dark: #1A202C;
    --accent-teal-green: #00BFFF; /* Using a bright blue for accent */
    --accent-teal-green-dark: #00A999; /* A slightly darker teal/green */
    --white: #FFFFFF;
    --gray-light: #E2E8F0;
    --gray-medium: #A0AEC0;
    --gray-dark: #2D3748;


    --gradient-primary-button: linear-gradient(90deg, var(--accent-teal-green), var(--accent-teal-green-dark));
    --gradient-primary-button-hover: linear-gradient(90deg, var(--accent-teal-green-dark), var(--accent-teal-green));
    --gradient-offer-card: linear-gradient(135deg, var(--secondary-dark), var(--primary-dark));


    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.6);
    --shadow-accent: 0 5px 15px rgba(0, 191, 255, 0.3); /* Updated accent shadow color */


    --transition-fast: all 0.2s ease-in-out;
    --transition-medium: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s ease;


    --border-radius-small: 6px;
    --border-radius-medium: 10px;
    --border-radius-large: 30px;
    --border-radius-extra-large: 16px;


    --font-family-primary: 'Inter', sans-serif;
    --font-size-base: 1rem;
}

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

body {
    font-family: var(--font-family-primary);
    line-height: 1.8;
    color: var(--gray-light);
    background-color: var(--primary-dark);
    overflow-x: hidden;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.1;
    color: var(--white);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); margin-bottom: 1.5em; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

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

a:hover {
    color: var(--accent-teal-green);
}

ul {
    list-style: none;
}

img,
video { /* Apply max-width to video as well */
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 25px;
}

.section-padding {
    min-height: 100vh;
    padding: 120px 0;
    position: relative;
    scroll-margin-top: 100px;
    display: flex;
    align-items: center;
}

.section-padding-hero {
    min-height: 100vh;
    padding: 200px 0 120px;
    position: relative;
    scroll-margin-top: 100px;
    display: flex;
    align-items: center;
}

.section-padding > .container,
.section-padding-hero > .container {
    width: 100%;
}


/* Ensure all changing button properties have a transition */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: var(--border-radius-large);
    font-weight: 600;
    cursor: pointer;
    /* Улучшенные плавные переходы для всех свойств */
    transition:
        background-image 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    font-size: var(--font-size-base);
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
    min-width: 160px;
    /* Remove default outline for smoother focus transition */
    outline: none;
}

.btn-primary-gradient {
    background-image: none;
    background-color: var(--accent-teal-green);
    color: var(--primary-dark);
    box-shadow: var(--shadow-accent);
    transform: translateY(0);
    will-change: transform, background-image;
}

.btn-primary-gradient:hover {
    background-image: var(--gradient-primary-button);
    background-color: var(--accent-teal-green); /* Добавляем фоновый цвет при наведении */
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 196, 178, 0.4);
}

.btn-secondary-outline {
    background: transparent;
    color: var(--accent-teal-green);
    border: 2px solid var(--accent-teal-green);
    transform: translateY(0);
    will-change: transform;
     /* Inherits transition from .btn */
}

.btn-secondary-outline:hover {
    background: var(--accent-teal-green);
    color: var(--primary-dark);
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-accent);
    /* Inherits transition from .btn */
}

/* Анимация при активном состоянии (нажатии) */
.btn:active {
    transform: translateY(-2px) scale(0.98);
    transition-duration: 0.1s;
}

/* Добавляем плавное затухание при disabled состоянии */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Specific styles for form submit button inherited from .btn */
.btn-form-submit {
    width: 100%;
    margin-top: 10px;
    font-size: 1.1rem;
}

/* Specific styles for modal close button - keep fast transition for usability */
#modal-close-btn.btn {
    /* Override general .btn transition for faster modal close */
    transition: background-image var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    min-width: unset; /* Allow button to fit content */
    padding: 10px 20px; /* Adjust padding for smaller button */
}


.text-accent {
    color: var(--accent-teal-green);
}


/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(13, 17, 28, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: 18px 0;
    border-bottom: 1px solid var(--gray-dark);
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: var(--transition-fast);
    filter: brightness(1.1);
}

.logo-img:hover {
    transform: scale(1.08);
    opacity: 1;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--white);
    transition: var(--transition-fast);
    letter-spacing: -0.5px;
}

.logo-text:hover {
     color: var(--accent-teal-green);
}

.nav a {
    margin-left: 40px;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    color: var(--gray-medium);
    padding-bottom: 5px;
}

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

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-teal-green);
    transition: var(--transition-fast);
}

.nav a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--white);
    transition: var(--transition-fast); /* Add transition for hover/active states */
}
.mobile-menu-btn:hover {
    color: var(--accent-teal-green);
}


/* For alignment with other header elements */
.header-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
}


/* Hero Section */
.hero {
    background: var(--primary-dark);
    color: var(--white);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

/* Background blob */
.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: rgba(0, 196, 178, 0.1);
    border-radius: 50%;
    filter: blur(150px);
    z-index: 0;
    pointer-events: none;
    transition: all var(--transition-slow) ease; /* Keep transition for potential future animations */
}


.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    /* Increased gap to prevent overlap */
    gap: 120px;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1; /* Take up 1 part of the space */
    max-width: 600px;
    /* Keep fadeInUp animation */
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
    animation-delay: 0.1s; /* Slight delay for content */
}

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

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

.hero-image {
    /* Modified flex property */
    flex: 1.2; /* Take up 1.2 parts of the space */
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 300px; /* Keep a minimum width */
    /* Add animation */
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
    animation-delay: 0.4s; /* Delay after content appears */
}

.hero-image video {
    border-radius: var(--border-radius-extra-large);
    box-shadow: var(--shadow-card);
    transition: var(--transition-medium);
    transform: perspective(1000px) rotateY(-5deg);
    opacity: 0.95;
    /* Let flexbox handle max-width */
    /* max-width: 100%; REMOVED, handled by parent/flex */
    margin: 0 auto;
    width: 100%; /* Ensure video tries to fill its container */
    height: auto;
    object-fit: cover;
}

.hero-image video:hover {
    transform: perspective(1000px) rotateY(-2deg) translateY(-8px);
    box-shadow: var(--shadow-hover);
    opacity: 1;
}

.hero h1 {
    margin-bottom: 1rem;
    line-height: 1.2;
    /* Animation applied via hero-content */
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--gray-medium);
    margin-bottom: 2.5rem;
    font-weight: 400;
    /* Animation applied via hero-content */
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    /* Animation applied via hero-content, maybe delay slightly more */
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
    animation-delay: 0.6s; /* Delay after title/subtitle */
}
.hero-buttons .btn {
    min-width: 200px;
}


/* Features Section */
.features {
    background-color: var(--secondary-dark);
    color: var(--gray-light);
    display: flex;
    align-items: center;
}

.features h2 {
    text-align: center;
}

.features-grid {
    display: grid;

    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.feature-card {
    background-color: var(--primary-dark);
    padding: 40px;
    border-radius: var(--border-radius-extra-large);
    text-align: center;
    transition: var(--transition-medium); /* Smooth transition for hover effects */
    box-shadow: var(--shadow-card);
    border: 1px solid var(--gray-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-teal-green);
}

.feature-icon {
    font-size: 3.5rem;
    color: var(--accent-teal-green);
    margin-bottom: 20px;
    background: rgba(0, 196, 178, 0.1);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Transition for the pulsing shadow effect */
    transition: var(--transition-slow); /* Slower transition for glow */
    box-shadow: 0 0 0 0 rgba(0, 196, 178, 0.7);
}
.feature-card:hover .feature-icon {
    box-shadow: 0 0 0 15px rgba(0, 196, 178, 0);
}


.feature-card h3 {
    margin-bottom: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.feature-card p {
    font-size: 1rem;
    color: var(--gray-medium);
}

/* Advantages Section */
.advantages {
    background-color: var(--primary-dark);
    color: var(--gray-light);
    display: flex;
    align-items: center;
}

.advantages h2 {
    text-align: center;
}

.advantages-content {
    display: flex;
    align-items: center;
    gap: 80px;
    flex-wrap: wrap-reverse;
}

.advantages-text {
    flex: 1;
    min-width: 300px;
}

.advantages-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 300px;
}
.advantages-image img {
    border-radius: var(--border-radius-extra-large);
    max-width: 100%; /* Ensure image respects container */
}


.advantage-item {
    display: flex;
    margin-bottom: 30px;
    align-items: flex-start;
}

.advantage-number {
    background-color: var(--accent-teal-green);
    color: var(--primary-dark);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.5rem;
    margin-right: 25px;
    flex-shrink: 0;
    box-shadow: var(--shadow-accent);
    /* Transition for the pulse effect */
    transition: var(--transition-medium);
}
.advantage-item:hover .advantage-number {
    transform: scale(1.1);
    box-shadow: 0 0 0 8px rgba(0, 196, 178, 0.2);
}


.advantage-desc h3 {
    margin-bottom: 8px;
    font-size: 1.3rem;
    font-weight: 700;
}
.advantage-desc p {
    color: var(--gray-medium);
    font-size: 1rem;
}

/* Pilot Section */
.pilot {
    background-color: var(--secondary-dark);
    color: var(--gray-light);
    display: flex;
    align-items: center;
}

.pilot h2 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.pilot-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--gray-medium);
    margin-bottom: 4rem;
    font-weight: 400;
}

.pilot-offer {
    margin-bottom: 5rem;
}

.offer-card {
    background: var(--gradient-offer-card);
    color: var(--white);
    padding: 50px;
    border-radius: var(--border-radius-extra-large);
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--gray-dark);
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.offer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-extra-large);
    border: 2px solid transparent;
    background: linear-gradient(45deg, var(--accent-teal-green), transparent, transparent, var(--accent-teal-green)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: exclude;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

.offer-card:hover {
    box-shadow: var(--shadow-hover),
                0 0 30px rgba(0, 196, 178, 0.2);
}

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

.offer-card h3,
.offer-card li,
.offer-card i {
    transition: transform 0.4s ease, color 0.3s ease;
}

.offer-card:hover h3 {
    color: var(--accent-teal-green);
}

.offer-card:hover li {
    transform: translateX(5px);
}

.offer-card:hover i {
    transform: scale(1.1);
    color: var(--accent-teal-green);
}

.offer-card ul {
    margin-top: 1.5rem;
    padding-left: 0;
}

.offer-card li {
    margin-bottom: 18px;
    display: flex;
    align-items: flex-start;
    font-size: 1.1rem;
    line-height: 1.6;
}

.offer-card li:last-child {
    margin-bottom: 0;
}

.offer-card i {
    margin-right: 12px;
    font-size: 1.3rem;
    color: var(--accent-teal-green);
    flex-shrink: 0;
    margin-top: 4px;
}

.offer-note {
    margin-top: 25px;
    padding: 15px 20px;
    background-color: rgba(0, 196, 178, 0.1);
    border-left: 4px solid var(--accent-teal-green);
    border-radius: var(--border-radius-small);
    color: var(--gray-medium);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.offer-note i {
    color: var(--accent-teal-green);
    font-size: 1.2rem;
}


.pilot-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--primary-dark);
    padding: 50px;
    border-radius: var(--border-radius-extra-large);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--gray-dark);
}

.pilot-form h3 {
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--gray-dark);
    border-radius: var(--border-radius-medium);
    font-size: 1rem;
    background-color: var(--secondary-dark);
    color: var(--gray-light);
    transition: var(--transition-fast); /* Smooth transition for focus effect */
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-medium);
    opacity: 0.6;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-teal-green);
    box-shadow: 0 0 0 3px rgba(0, 196, 178, 0.2);
    background-color: var(--primary-dark);
}

.form-group input.input-error,
.form-group textarea.input-error {
    border-color: #e53e3e;
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.2);
}


.form-group textarea {
    min-height: 150px;
    resize: vertical;
}


/* Contacts Section */
.contacts {
    background-color: var(--primary-dark);
    color: var(--gray-light);
    display: flex;
    align-items: center;
}

.contacts h2 {
    text-align: center;
}

.contacts-content {
    display: flex;
    gap: 80px;
    flex-wrap: wrap;
}

.contacts-info {
    flex: 1;
    min-width: 300px;
    font-size: 1.1rem;
    color: var(--gray-medium);
}

.contacts-map {
    flex: 1;
    min-width: 300px;
    border-radius: var(--border-radius-extra-large);
    overflow: hidden;
}
.contacts-map iframe {
    border-radius: var(--border-radius-extra-large);
    display: block;
    transition: var(--transition-medium)
}


.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}
.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item i {
    margin-right: 15px;
    color: var(--accent-teal-green);
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
    flex-shrink: 0;
}
.contact-item a {
    color: var(--gray-light);
}
.contact-item a:hover {
    color: var(--accent-teal-green);
    text-decoration: underline;
}


.social-links {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    justify-content: center;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--secondary-dark);
    color: var(--gray-light);
    border-radius: 50%;
    transition: var(--transition-medium); /* Smooth transition for hover effects */
    font-size: 1.5rem;
    border: 1px solid var(--gray-dark);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden; /* Hide the pseudo-element overflow */
    z-index: 1; /* Ensure content is above pseudo-element */
}

.social-links a i {
    z-index: 2; /* Ensure icon is above glow effect */
    transition: var(--transition-fast); /* Smooth color change on hover */
}

.social-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--accent-teal-green);
    filter: blur(10px);
    opacity: 0;
    /* Slower transition for the glow effect */
    transition: opacity var(--transition-slow);
    z-index: -1;
}

.social-links a:hover {
    color: var(--primary-dark); /* Change icon color */
    background-color: var(--accent-teal-green); /* Change background color */
    transform: translateY(-5px) rotate(8deg);
    border-color: var(--accent-teal-green);
    box-shadow: var(--shadow-accent);
}
.social-links a:hover::before {
    opacity: 0.6;
}


/* Footer */
.footer {
    background-color: var(--primary-dark);
    color: var(--gray-medium);
    padding: 60px 0 30px;
    border-top: 1px solid var(--gray-dark);
    text-align: center;
}

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 25px;
    color: var(--accent-teal-green);
    transition: var(--transition-fast); /* Smooth transition for hover */
}

.footer-logo:hover {
     opacity: 0.8; /* Simple hover effect */
}


.footer-links {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    transition: var(--transition-fast);
    color: var(--gray-medium);
}

.footer-links a:hover {
    color: var(--accent-teal-green);
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-dark);
    font-size: 0.9rem;
    color: var(--gray-medium);
    justify-content: center;
}

.footer-legal a {
    transition: var(--transition-fast);
    color: var(--gray-medium);
}

.footer-legal a:hover {
    color: var(--accent-teal-green);
}


/* Modal */
.modal {
    display: none; /* Controlled by JS */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px); /*  Safari */
    opacity: 0;
    pointer-events: none;
    /* Make modal fade in/out smoother */
    transition: opacity var(--transition-medium);
}

.modal.active {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}


.modal-content {
    background-color: var(--secondary-dark);
    color: var(--gray-light);
    padding: 50px;
    border-radius: var(--border-radius-extra-large);
    max-width: 500px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--gray-dark);
    transform: translateY(-30px);
    opacity: 0;
    /* Keep transform and opacity transition for modal content pop-in */
    transition: transform var(--transition-medium), opacity var(--transition-medium);
}

.modal.active .modal-content {
    transform: translateY(0);
    opacity: 1;
}


.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-medium);
    transition: var(--transition-fast); /* Fast transition is fine here */
}

.close-modal:hover {
    color: var(--white);
    transform: rotate(90deg);
}

.success-icon {
    font-size: 5rem;
    color: var(--accent-teal-green);
    margin-bottom: 20px;
    /* Add a subtle pulse animation */
     animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}


.modal h3 {
    margin-bottom: 15px;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

.modal p {
    margin-bottom: 30px;
    font-size: 1.1rem;
    color: var(--gray-medium);
}

.modal .btn {
     margin-top: 20px; /* Add space below paragraph */
}


/* Responsive Styles */

@media (max-width: 1200px) {
    /*  <= 1200px */
     .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
     .feature-card {
         min-height: unset;
     }
}


@media (max-width: 1024px) {

    .section-padding {
        min-height: auto;
        padding: 100px 0;
    }
     .section-padding-hero {
         min-height: auto;
         padding: 160px 0 100px;
     }

    .hero .container {
        flex-direction: column;
        gap: 60px; /* Gap for column layout */
        text-align: center;
    }
    .hero-content {
        order: 1; /* Text below image */
        max-width: 100%;
        flex: none; /* Reset flex for column layout */
        animation: none; /* Remove animation if reapplying below */
        opacity: 1;
        transform: none;
    }
    .hero-image {
        order: 0; /* Image above text */
        flex: none; /* Reset flex */
        width: 80%;
        max-width: 500px;
        margin: 0 auto; /* Center image */
        animation: none; /* Remove animation if reapplying below */
        opacity: 1;
        transform: none;
    }
     .hero-image video {
        max-width: 100%; /* Ensure video stays within bounds */
        transform: none; /* Reset transform */
        opacity: 1;
     }
     .hero-image video:hover {
          transform: translateY(-8px); /* Keep hover lift */
          box-shadow: var(--shadow-hover);
          opacity: 1;
     }

    /* Reapply animations for column layout if desired */
    .hero-content, .hero-image {
        opacity: 0;
        animation: fadeInUp 0.8s ease-out forwards;
    }
    .hero-image { animation-delay: 0.1s; }
    .hero-content { animation-delay: 0.3s; } /* Content fades in after image */
    .hero-buttons { animation-delay: 0.5s; } /* Buttons after content */

    .hero-buttons {
         justify-content: center;
         gap: 15px;
         /* Animation adjusted above */
    }
     .hero-buttons .btn {
         min-width: unset;
         width: auto;
     }


    .advantages-content {
        flex-direction: column-reverse;
        gap: 60px;
    }
    .advantages-image,
    .advantages-text {
         min-width: unset;
         width: 100%;
         text-align: center;
         align-items: center;
    }


     .advantage-item {
         justify-content: center;
         margin-bottom: 25px;
     }
     .advantage-number {
         /* Keep existing style, maybe remove margin-right */
         margin-right: 0;
         margin-bottom: 15px; /* Add bottom margin */
         font-size: 1.3rem;
          width: 40px;
          height: 40px;
     }
     .advantage-item:hover .advantage-number {
          transform: scale(1.1);
          box-shadow: 0 0 0 8px rgba(0, 196, 178, 0.2);
     }
     .advantage-desc h3 {
         font-size: 1.2rem;
     }
     .advantage-desc p {
         font-size: 0.95rem;
     }


    .contacts-content {
        flex-direction: column;
        gap: 60px;
    }
    .contacts-info,
    .contacts-map {
        min-width: unset;
        width: 100%;
    }
     .contacts-map iframe {
          height: 350px;
     }

    .social-links {
        justify-content: center;
    }

     .offer-card {
         padding: 40px;
     }
      .offer-card h3 {
         font-size: 1.6rem;
     }
      .offer-card li {
         font-size: 1rem;
         margin-bottom: 15px;
     }
      .offer-card i {
         font-size: 1.2rem;
      }
     .offer-note {
         font-size: 0.9rem;
         padding: 12px 15px;
     }
      .offer-note i {
          font-size: 1.1rem;
      }

      .pilot-form {
          padding: 40px;
      }
       .pilot-form h3 {
          font-size: 1.6rem;
       }

}


@media (max-width: 768px) {
    h1 { font-size: clamp(2rem, 6vw, 3rem); }
    h2 { font-size: clamp(1.8rem, 5vw, 2.4rem); margin-bottom: 1.2em; }
    h3 { font-size: clamp(1.4rem, 4vw, 1.8rem); }

    .section-padding {
        min-height: auto;
        padding: 80px 0;
    }
    .section-padding-hero {
        min-height: auto;
        padding: 120px 0 80px;
    }

    .container {
        padding: 0 20px;
    }

    .header {
        padding: 15px 0;
    }

    .nav {
        display: none;
        position: absolute;
        top: 65px; /* Adjust based on header height */
        left: 0;
        width: 100%;
        background-color: var(--secondary-dark);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
        border-top: 1px solid var(--gray-dark);
         transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out, visibility 0.3s ease-in-out; /* Added opacity/visibility */
         overflow: hidden;
         max-height: 0;
         opacity: 0; /* Start hidden */
         visibility: hidden; /* Start hidden */
    }
    .nav.active {
        display: flex; /* Added back display: flex */
        max-height: 300px; /* Adjust as needed */
        opacity: 1; /* Fade in */
        visibility: visible; /* Make visible */
    }


    .nav a {
        margin: 10px 0;
        text-align: center;
        font-size: 1.1rem;
         padding-bottom: 8px;
    }

    .mobile-menu-btn {
        display: block;
        font-size: 1.6rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

     .features-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 columns up to 768px */
        gap: 25px;
    }
     .feature-card {
         padding: 30px;
         min-height: 250px;
     }
      .feature-icon {
          font-size: 3rem;
          width: 70px;
          height: 70px;
      }


    .advantage-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        margin-bottom: 25px;
        /* Keep margin-right 0 from 1024px */
        margin-right: 0;
    }
     /* No change from 1024px needed here for advantage-number */


     .offer-card {
         padding: 30px;
     }
      .offer-card h3 {
         font-size: 1.4rem;
     }
      .offer-card li {
         font-size: 0.95rem;
      }
     .offer-note {
         font-size: 0.85rem;
     }


    .pilot-form {
        padding: 30px;
    }
    .pilot-form h3 {
        font-size: 1.5rem;
    }
     .btn-form-submit {
          font-size: 1rem;
     }


     .contacts-map iframe {
         height: 300px;
     }

    .social-links {
        justify-content: center;
    }
     .social-links a {
         width: 45px;
         height: 45px;
         font-size: 1.3rem;
     }


    .footer-links {
        gap: 20px;
        font-size: 0.95rem;
    }
     .footer-legal {
          gap: 15px;
          font-size: 0.85rem;
     }

    .modal-content {
        padding: 35px;
    }
     .success-icon {
         font-size: 4rem;
    }
     .modal h3 {
         font-size: 1.6rem;
     }
      .modal p {
          font-size: 1rem;
      }

}


@media (max-width: 576px) {
    /* Features: Stack to single column */
    .features-grid {
        grid-template-columns: 1fr; /* 1 column below 576px */
        gap: 25px;
    }
     .feature-card {
         min-height: unset;
     }
}


@media (max-width: 480px) {
     h1 { font-size: clamp(1.8rem, 7vw, 2.5rem); }
    h2 { font-size: clamp(1.6rem, 6vw, 2rem); margin-bottom: 1em; }
    h3 { font-size: clamp(1.3rem, 5vw, 1.6rem); }

    .section-padding {
        padding: 60px 0;
    }
    .section-padding-hero {
         padding: 100px 0 60px;
     }

    .container {
        padding: 0 15px;
    }

    .header {
        padding: 12px 0;
    }
    .logo-text {
        display: none; /* Hide text logo on smallest screens */
    }
     .logo-img {
         height: 35px;
     }
     .mobile-menu-btn {
         font-size: 1.5rem;
     }
      .nav {
          top: 60px; /* Adjust based on new header height */
      }


    .hero .subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    .hero-buttons .btn {
         width: 100%;
         min-width: unset;
         padding: 12px 20px; /* Slightly smaller padding */
     }
     .hero-image {
         width: 90%; /* Adjust width for smallest screens */
     }


    /* Features: Already 1 column from 576px */
     .feature-card {
         padding: 25px;
     }
      .feature-icon {
          font-size: 2.8rem;
          width: 65px;
          height: 65px;
      }


     .advantage-item {
          margin-bottom: 20px;
     }
     .advantage-number {
          width: 35px;
          height: 35px;
          font-size: 1.1rem;
          margin-bottom: 10px;
     }
     .advantage-desc h3 {
          font-size: 1.1rem;
     }
     .advantage-desc p {
          font-size: 0.9rem;
     }

     .offer-card {
        padding: 25px;
    }
    .offer-card h3 {
         font-size: 1.3rem;
    }
    .offer-card li {
        font-size: 0.9rem;
        margin-bottom: 12px;
    }
    .offer-card i {
        font-size: 1.1rem;
    }
    .offer-note {
         font-size: 0.8rem;
         padding: 10px 12px;
    }
     .offer-note i {
         font-size: 1rem;
     }


    .pilot-form {
        padding: 25px;
    }
     .pilot-form h3 {
         font-size: 1.3rem;
     }
    .form-group input,
    .form-group textarea {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    .form-group textarea {
        min-height: 100px;
    }
    .btn-form-submit {
         font-size: 0.95rem;
     }


    .contacts-map iframe {
        height: 250px;
    }
    .contact-item {
         font-size: 1rem;
          margin-bottom: 20px;
     }
     .contact-item i {
          font-size: 1.3rem;
          width: 25px;
          margin-right: 10px;
     }
    .social-links a {
         width: 40px;
         height: 40px;
         font-size: 1.2rem;
         gap: 10px;
    }

    .footer {
         padding: 40px 0 20px;
    }
    .footer-logo {
         font-size: 1.8rem;
         margin-bottom: 20px;
    }
     .footer-links {
         gap: 15px;
          font-size: 0.9rem;
     }
     .footer-legal {
          gap: 10px;
          font-size: 0.8rem;
     }


    .modal-content {
        padding: 25px;
    }
     .success-icon {
         font-size: 3rem;
    }
     .modal h3 {
         font-size: 1.4rem;
     }
     .modal p {
         font-size: 0.9rem;
         margin-bottom: 20px;
     }
      #modal-close-btn {
          padding: 10px 20px;
      }
}