:root {
    --bg-color: #0d1117;
    --text-color: #e6edf3;
    --primary-color: #007bff; /* Fallback */
    --primary-gradient: linear-gradient(135deg, #00c6ff 0%, #0072ff 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-color: #00f2ea;
    --card-bg: rgba(22, 27, 34, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

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

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

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: #8b949e;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

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

.btn--secondary {
     background: var(--secondary-gradient); /* Or a nice green/purple */
     color: white;
}

.btn--outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--text-color);
}

.btn--outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn--glow {
    box-shadow: 0 0 20px rgba(0, 198, 255, 0.4);
}
.btn--glow:hover {
    box-shadow: 0 0 30px rgba(0, 198, 255, 0.6);
}

.btn--small {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.85); /* Slightly transparent */
    backdrop-filter: blur(10px);
    border-bottom: var(--glass-border);
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo__icon {
    font-size: 1.5rem;
}

.nav__list {
    display: flex;
    gap: 30px;
}

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

@media (max-width: 768px) {
    .nav {
        display: none; /* Simple mobile hide for now, could add burger if needed */
    }
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 100px;
    text-align: center;
    overflow: hidden;
}

/* Background glow effect */
.hero__bg-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0,198,255,0.15) 0%, rgba(13,17,23,0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: #8b949e;
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--card-bg);
    padding: 15px 25px;
    border-radius: 12px;
    border: var(--glass-border);
    backdrop-filter: blur(5px);
}

.stat-item__icon {
    font-size: 1.5rem;
}

.stat-item__text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.stat-item__value {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent-color);
}

.stat-item__label {
    font-size: 0.85rem;
    color: #8b949e;
}

/* Map Section */
.map-section {
    padding: 80px 0;
    position: relative;
}

.map-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.world-map {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 10px rgba(0, 198, 255, 0.2));
}

.map-dot {
    fill: var(--accent-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        r: 5;
        opacity: 1;
    }
    50% {
        r: 8;
        opacity: 0.6;
    }
    100% {
        r: 5;
        opacity: 1;
    }
}

/* Add different delays to dots effectively using CSS nth-child or classes if we had many */
.map-dot:nth-child(even) {
    animation-delay: 0.5s;
}

.map-stats-overlay {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--card-bg);
    padding: 15px 25px;
    border-radius: 12px;
    border: var(--glass-border);
    backdrop-filter: blur(5px);
}

.map-stat {
    font-size: 1.2rem;
    font-weight: 700;
}

.map-stat__number {
    color: var(--accent-color);
    font-size: 1.5rem;
}

/* Advantages */
.advantages {
    padding: 80px 0;
    background: #161b22; /* Slightly Lighter bg */
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: rgba(13, 17, 23, 0.5);
    padding: 30px;
    border-radius: 16px;
    border: var(--glass-border);
    transition: transform 0.3s;
}

.advantage-card:hover {
    transform: translateY(-5px);
    background: rgba(13, 17, 23, 0.8);
    border-color: rgba(0, 198, 255, 0.3);
}

.advantage-card__icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.advantage-card__title {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: white;
}

.advantage-card__text {
    color: #8b949e;
    font-size: 0.95rem;
}

/* Instruction */
.instruction {
    padding: 80px 0;
}

.steps {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 16px;
    border: var(--glass-border);
    position: relative;
    overflow: hidden;
}

.step__number {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.05); /* Subtle watermark number */
    position: absolute;
    top: 10px;
    right: 20px;
    line-height: 1;
}

.step__title {
    font-size: 1.25rem;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.step__text {
    color: #8b949e;
    position: relative;
    z-index: 1;
}

.center-btn {
    text-align: center;
    margin-top: 40px;
}

/* Tariffs */
.tariffs {
    padding: 80px 0;
    background: #161b22;
}

.tariffs__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.tariff-card {
    background: var(--bg-color);
    border: var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
}

.tariff-card--popular {
    transform: scale(1.05);
    border: 2px solid #0072ff;
    box-shadow: 0 0 30px rgba(0, 114, 255, 0.15);
    background: linear-gradient(180deg, rgba(0, 114, 255, 0.1) 0%, rgba(13, 17, 23, 1) 100%);
    z-index: 2;
}

.tariff-card__badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #0072ff;
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tariff-card__title {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.tariff-card__price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 5px;
    color: white;
}

.tariff-card__price .period {
    font-size: 1rem;
    color: #8b949e;
    font-weight: 400;
}

.old-price {
    display: block;
    font-size: 1rem;
    text-decoration: line-through;
    color: #8b949e;
    font-weight: 400;
    margin-bottom: 5px;
}

.tariff-card__total {
    font-size: 0.9rem;
    color: #8b949e;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.tariff-card__features {
    text-align: left;
    margin-bottom: 30px; /* Push button to bottom */
    flex-grow: 1; /* Space distribution */
}

.tariff-card__features li {
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
    color: #c9d1d9;
}

.tariff-card__features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.trial-offer {
    background: linear-gradient(90deg, #1f2937, #111827);
    border: 1px solid #374151;
    border-radius: 16px;
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 20px;
}

.trial-offer__content h3 {
    margin-bottom: 5px;
    color: var(--accent-color);
}

.trial-offer__content p {
    color: #d1d5db;
}

/* SEO Text */
.seo-text {
    padding: 60px 0;
}

.seo-content {
    background: rgba(22, 27, 34, 0.4);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
}

.seo-content h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: white;
}

.seo-content p {
    margin-bottom: 15px;
    color: #8b949e;
}

/* FAQ */
.faq {
    padding: 80px 0;
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 15px;
}

.faq__question {
    padding: 20px 0;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    padding-right: 30px;
    list-style: none; /* Hide default triangle */
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform 0.3s;
}

details[open] .faq__question::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq__answer {
    padding-bottom: 20px;
    color: #8b949e;
    line-height: 1.6;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: #090c10;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer__container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 30px;
}

.footer__copy {
    color: #8b949e;
    font-size: 0.9rem;
    margin-top: 10px;
}

.footer__links {
    display: flex;
    gap: 30px;
}

.footer__links a {
    color: #8b949e;
}

.footer__links a:hover {
    color: white;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__stats {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .stat-item {
        width: 100%;
        max-width: 300px;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .footer__container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer__links {
        justify-content: center;
    }

    .tariff-card--popular {
        transform: scale(1); /* disable scale on mobile */
    }
}