/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #0088cc;
    /* Telegram Blue */
    --primary-gradient: linear-gradient(135deg, #0088cc 0%, #005f8f 100%);
    --accent-color: #00b894;
    /* Teal / Growth */
    --accent-gradient: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
    --dark-bg: #2d3436;
    --light-bg: #f0f4f8;
    /* Slightly blue-tinted gray */
    --text-color: #2d3436;
    --text-muted: #636e72;
    --white: #ffffff;
    --border-radius: 16px;
    /* softer corners */
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    /* deeper shadow */
    --hover-shadow: 0 15px 30px rgba(0, 136, 204, 0.15);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    background-color: var(--white);
    margin: 0;
    line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    color: var(--dark-bg);
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 136, 204, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 136, 204, 0.4);
    color: white;
}

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

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

/* Sections */
section {
    padding: 4rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80vh;
    padding-top: 8rem;
    /* added space */
    background: radial-gradient(circle at top right, rgba(0, 136, 204, 0.1), transparent 40%),
        radial-gradient(circle at bottom left, rgba(0, 184, 148, 0.1), transparent 40%);
    /* Space for fixed header */
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: -webkit-linear-gradient(45deg, var(--dark-bg), var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

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

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

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

.feature-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.testimonial-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 1rem;
    object-fit: cover;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-muted);
}

/* Telegram CTA Bar */
.telegram-cta-bar {
    background: linear-gradient(135deg, var(--primary-color), #00b894);
    color: white;
    padding: 3rem 1rem;
    text-align: center;
    border-radius: var(--border-radius);
    margin: 4rem auto;
    max-width: 1000px;
    box-shadow: 0 10px 30px rgba(0, 184, 148, 0.3);
}

.telegram-cta-bar h2 {
    color: white;
    margin-bottom: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-content {
        margin-bottom: 2rem;
    }
}

/* Header & Footer */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 1rem 0;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-bg);
}

.main-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 500;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.site-footer {
    background: var(--dark-bg);
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}


/* Carousel Animations */
.carousel-slide {
    animation: slideIn 0.5s ease-in-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

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

.testimonial-grid {
    /* Ensure height doesn't collapse or jump too much, though grid handles it. 
       For single item display, we might want to ensure a min-height. */
    min-height: 200px;
    display: block;
    /* Override grid for single item view if needed, or keep using grid to center */
}

.testimonial-card {
    margin: 0 auto;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-bg);
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .main-nav.nav-open {
        display: flex;
    }

    .main-nav a {
        padding: 0.5rem 0;
        border-bottom: 1px solid #eee;
    }

    .main-nav a:last-child {
        border-bottom: none;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-content {
        margin-bottom: 2rem;
    }
}