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

:root {
    --bg: #0a0a0f;
    --bg2: #0f0f18;
    --bg3: #161625;
    --bg4: #1c1c30;
    --text: #e8e8f0;
    --text2: #9999b0;
    --text3: #55556a;
    --accent: #00d084;
    --accent2: #00b870;
    --accent-glow: rgba(0, 208, 132, 0.15);
    --gold: #ffd700;
    --gold2: #ffaa00;
    --border: #1e1e35;
    --radius: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Container */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ====== Nav ====== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

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

.nav-logo {
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), #00f5a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.nav-cta {
    padding: 8px 20px;
    background: var(--accent);
    color: #000;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    transition: 0.2s;
}

.nav-cta:hover {
    background: var(--accent2);
    transform: translateY(-1px);
}

/* ====== Language Selector ====== */
.lang-selector {
    position: relative;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text2);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: 0.2s;
}

.lang-toggle:hover {
    border-color: var(--accent);
    color: var(--text);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 170px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 6px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.5);
    z-index: 200;
    max-height: 320px;
    overflow-y: auto;
}

.lang-selector.open .lang-dropdown {
    display: block;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    background: none;
    border: none;
    border-radius: 6px;
    color: var(--text2);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: 0.15s;
    text-align: left;
}

.lang-option:hover {
    background: var(--bg4);
    color: var(--text);
}

.lang-option.active {
    background: var(--accent-glow);
    color: var(--accent);
    font-weight: 600;
}

/* ====== Hero ====== */
.hero {
    padding: 140px 0 80px;
    text-align: center;
    background: radial-gradient(ellipse at 50% 0%, rgba(0, 208, 132, 0.08) 0%, transparent 60%);
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid rgba(0, 208, 132, 0.25);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), #00f5a0, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: 18px;
    color: var(--text2);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text3);
}

/* ====== Buttons ====== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-align: center;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #000;
    box-shadow: 0 4px 20px rgba(0, 208, 132, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 208, 132, 0.35);
}

.btn-secondary {
    background: var(--bg3);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* ====== Sections ====== */
.section {
    padding: 80px 0;
}

.section-dark {
    background: var(--bg2);
}

.section-title {
    text-align: center;
    font-size: clamp(24px, 3.5vw, 36px);
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.section-sub {
    text-align: center;
    font-size: 17px;
    color: var(--text2);
    margin-bottom: 48px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

.section-sub em {
    color: var(--accent);
    font-style: normal;
    font-weight: 700;
}

/* ====== Problem ====== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.problem-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: 0.3s;
}

.problem-card:hover {
    border-color: rgba(231, 76, 60, 0.3);
    transform: translateY(-4px);
}

.problem-icon {
    font-size: 36px;
    display: block;
    margin-bottom: 14px;
}

.problem-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.problem-card p {
    font-size: 14px;
    color: var(--text2);
    line-height: 1.6;
}

/* ====== Steps ====== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.step-card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    position: relative;
    transition: 0.3s;
}

.step-card:hover {
    border-color: rgba(0, 208, 132, 0.3);
    transform: translateY(-4px);
}

.step-number {
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #000;
    font-size: 18px;
    font-weight: 800;
    margin: 0 auto 16px;
}

.step-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 14px;
    color: var(--text2);
    line-height: 1.6;
}

/* ====== Features ====== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.feature-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 20px;
    transition: 0.3s;
}

.feature-card:hover {
    border-color: rgba(0, 208, 132, 0.3);
    transform: translateY(-3px);
}

.feature-icon {
    font-size: 28px;
    display: block;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-card p {
    font-size: 13px;
    color: var(--text2);
    line-height: 1.6;
}

/* ====== Pricing ====== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 28px;
    position: relative;
    transition: 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
}

.pricing-card-pro {
    border-color: var(--gold);
    background: linear-gradient(180deg, rgba(255, 215, 0, 0.06) 0%, var(--bg3) 40%);
    box-shadow: 0 0 40px rgba(255, 215, 0, 0.08);
}

.pricing-popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: linear-gradient(135deg, var(--gold), var(--gold2));
    color: #000;
    font-size: 12px;
    font-weight: 800;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.pricing-badge {
    display: inline-block;
    padding: 4px 14px;
    background: var(--bg4);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text3);
    margin-bottom: 12px;
}

.pricing-badge-pro {
    background: linear-gradient(135deg, var(--gold), var(--gold2));
    border-color: var(--gold);
    color: #000;
}

.pricing-price {
    font-size: 48px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.pricing-price-pro {
    background: linear-gradient(135deg, var(--gold), var(--gold2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-period {
    font-size: 14px;
    color: var(--text3);
}

.pricing-features {
    list-style: none;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pricing-features li {
    font-size: 14px;
    color: var(--text2);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li strong {
    color: var(--text);
}

.check {
    color: var(--accent);
    font-size: 14px;
    flex-shrink: 0;
}

.check-pro {
    color: var(--gold);
    font-size: 14px;
    flex-shrink: 0;
}

/* ====== FAQ ====== */
.faq-list {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: 0.2s;
}

.faq-item[open] {
    border-color: rgba(0, 208, 132, 0.3);
}

.faq-question {
    padding: 18px 20px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: 0.2s;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    font-size: 20px;
    color: var(--text3);
    transition: 0.2s;
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-item[open] .faq-question::after {
    content: '−';
    color: var(--accent);
}

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

.faq-answer {
    padding: 0 20px 18px;
    font-size: 14px;
    color: var(--text2);
    line-height: 1.7;
}

/* ====== CTA Final ====== */
.section-cta {
    text-align: center;
    padding: 80px 0;
    background: radial-gradient(ellipse at 50% 100%, rgba(0, 208, 132, 0.08) 0%, transparent 60%);
}

.cta-title {
    font-size: clamp(24px, 3.5vw, 36px);
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-sub {
    font-size: 17px;
    color: var(--text2);
    margin-bottom: 32px;
}

/* ====== Footer ====== */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-logo {
    font-size: 16px;
    font-weight: 800;
    color: var(--text3);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 13px;
    color: var(--text3);
    transition: 0.2s;
}

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

.footer-copy {
    font-size: 12px;
    color: var(--text3);
    width: 100%;
    text-align: center;
    margin-top: 8px;
}

/* ====== Animations ====== */
@media (prefers-reduced-motion: no-preference) {
    .problem-card,
    .step-card,
    .feature-card,
    .pricing-card,
    .faq-item {
        opacity: 0;
        transform: translateY(20px);
        animation: fade-up 0.5s ease-out forwards;
    }

    .problem-card:nth-child(1) { animation-delay: 0.05s; }
    .problem-card:nth-child(2) { animation-delay: 0.1s; }
    .problem-card:nth-child(3) { animation-delay: 0.15s; }

    .step-card:nth-child(1) { animation-delay: 0.05s; }
    .step-card:nth-child(2) { animation-delay: 0.1s; }
    .step-card:nth-child(3) { animation-delay: 0.15s; }

    .feature-card:nth-child(1) { animation-delay: 0.03s; }
    .feature-card:nth-child(2) { animation-delay: 0.06s; }
    .feature-card:nth-child(3) { animation-delay: 0.09s; }
    .feature-card:nth-child(4) { animation-delay: 0.12s; }
    .feature-card:nth-child(5) { animation-delay: 0.15s; }
    .feature-card:nth-child(6) { animation-delay: 0.18s; }
    .feature-card:nth-child(7) { animation-delay: 0.21s; }
    .feature-card:nth-child(8) { animation-delay: 0.24s; }
    .feature-card:nth-child(9) { animation-delay: 0.27s; }

    .pricing-card:nth-child(1) { animation-delay: 0.05s; }
    .pricing-card:nth-child(2) { animation-delay: 0.15s; }
}

@keyframes fade-up {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ====== Responsive ====== */
@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero-sub {
        font-size: 16px;
    }

    .section {
        padding: 60px 0;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }