:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #131826;
    --accent-primary: #00d4ff;
    --accent-secondary: #2d5aff;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.75);
    --text-muted: rgba(255, 255, 255, 0.5);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glow-primary: 0 0 20px rgba(0, 212, 255, 0.4);
    --font-main: 'Inter', sans-serif;
    --page-width: 1200px;
    --subtitle-width: 850px;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Particles Background */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    top: 0;
    left: 0;
}

.container {
    display: grid;
    grid-template-columns: 1fr;
    position: relative;
  }

  /* .section {
    position: relative;
    min-height: 100vh; /* Минимальная высота - экран * /
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
  } */


/* Section Common */
section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 10%;
    position: relative;
    overflow: hidden;
}

.section-highlight {
    background: linear-gradient(to bottom, transparent 0%, rgba(19, 24, 38, 0.4) 15%, rgba(19, 24, 38, 0.4) 85%, transparent 100%);
}

.section-content {
    max-width: var(--page-width);
    width: 100%;
    margin: 0 auto;
    z-index: 2;
    justify-items: center;
}

/* Typography */
h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-primary);
    text-align: center;
}

.section-subtitle {
    font-size: 1.75rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: var(--subtitle-width);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.2s forwards;
    text-align: center;
}

p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 2.8rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.4s forwards;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    color: var(--bg-primary);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-primary);
    border: 1px solid var(--glass-border);
    margin-left: 1.5rem;
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.05);
    border-color: var(--accent-primary);
}

.btn-glow {
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
    }

    50% {
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.8);
    }
}

/* Hero Section */
.hero {
    text-align: center;
    padding-top: 5vh;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

/* Problem Section */
/* .problem {
    background-color: var(--bg-secondary);
} */

/* Solution Section */
.solution-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem;
    margin-top: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 212, 255, 0.2);
}

/* Steps */
.steps {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.05);
    position: absolute;
    top: -10px;
    right: 20px;
    line-height: 1;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

/* Tariff Cards */
.tariffs {
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
}

.tariff-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 500px;
    transition: all 0.3s ease;
    position: relative;
}

.tariff-card.featured {
    border-color: var(--accent-primary);
    box-shadow: var(--glow-primary);
}

.tariff-card h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-primary);
    margin: 1rem 0;
}
.priceConditions {
    /* color: var(--text-secondary); font-size: 1rem; */
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin: 0.5rem 0;
}
.priceUnit {
    /* color: var(--text-secondary); font-size: 1rem; */
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin: 0.5rem 0;
}

.price-full {
    font-size: 1.5rem;
    color: var(--text-muted);
    text-decoration: line-through;
    display: block;
}

.price-beta {
    display: inline-block;
    background: rgba(45, 90, 255, 0.2);
    color: var(--accent-secondary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.features-list {
    list-style: none;
    margin: 2rem 0;
}

.features-list li {
    padding: 0.8rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
}

.features-list li:before {
    content: "✓";
    color: var(--accent-primary);
    font-weight: bold;
    margin-right: 1rem;
}

/* Custom Solutions Section */
.custom-solutions {
    /* background: var(--bg-secondary); */
    text-align: center;
}

.custom-card {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(45, 90, 255, 0.05));
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 4rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
footer {
    background-color: #070a12;
    padding: 4rem 10%;
    text-align: center;
}

.footer-content {
    max-width: var(--page-width);
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 2rem;
}

/* Animations */
@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1 !important;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    section {
        padding: 6rem 5%;
    }

    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-secondary {
        margin-left: 0;
        margin-top: 1rem;
    }

    .steps {
        flex-direction: column;
    }

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

    .tariff-card {
        max-width: 100%;
    }
}