/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0A0F2C;
    --bg-light: #111640;
    --bg-card: #151A3A;
    --cyan: #00E5FF;
    --yellow: #FFD600;
    --blue: #0066FF;
    --white: #F0F2F5;
    --gray: #8B90A0;
    --gray-light: #C0C4D0;
    --radius: 12px;
    --radius-sm: 8px;
    --max-w: 1200px;
    --section-pad: 100px;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img, iframe {
    max-width: 100%;
}

/* === LAYOUT === */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-pad) 0;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--cyan);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--gray-light);
    max-width: 600px;
    margin-bottom: 48px;
}

/* === NAV === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: background 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
    background: rgba(10, 15, 44, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.logo-dot {
    color: var(--cyan);
}

.nav-cta {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: 100px;
    background: var(--cyan);
    color: var(--bg);
    transition: opacity 0.2s;
}

.nav-cta:hover {
    opacity: 0.85;
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    font-family: inherit;
    font-weight: 700;
    border: none;
    cursor: pointer;
    border-radius: 100px;
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
    text-align: center;
}

.btn-primary {
    background: var(--cyan);
    color: var(--bg);
    padding: 16px 40px;
    font-size: 1.05rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 229, 255, 0.25);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-lg {
    padding: 18px 48px;
    font-size: 1.1rem;
}

/* === HERO === */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0, 102, 255, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 20% 80%, rgba(0, 229, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 80% 60%, rgba(255, 214, 0, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-tag {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--cyan);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(2.4rem, 8vw, 4.2rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--gray-light);
    max-width: 520px;
    margin: 0 auto 36px;
    line-height: 1.5;
}

.hero-note {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--gray);
}

/* === PROBLEM === */
.section-problem {
    background: var(--bg-light);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin: 40px 0 32px;
}

.problem-card {
    background: var(--bg);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
}

.problem-price {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--yellow);
    margin-bottom: 8px;
}

.problem-price small {
    font-size: 0.9rem;
    font-weight: 600;
}

.problem-card p {
    color: var(--gray-light);
    font-size: 0.95rem;
}

.problem-text {
    font-size: 1.1rem;
    color: var(--gray-light);
    max-width: 600px;
}

/* === SOLUTION === */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: border-color 0.3s;
}

.solution-card:hover {
    border-color: rgba(0, 229, 255, 0.2);
}

.solution-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 229, 255, 0.08);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.solution-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.solution-card p {
    font-size: 0.95rem;
    color: var(--gray-light);
    line-height: 1.55;
}

/* === OFFER STACK === */
.section-offer {
    background: var(--bg-light);
}

.offer-stack {
    max-width: 720px;
    margin: 40px auto 0;
}

.offer-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.offer-item-left {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.offer-check {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 229, 255, 0.12);
    color: var(--cyan);
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    margin-top: 2px;
}

.offer-item strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.offer-detail {
    display: block;
    font-size: 0.85rem;
    color: var(--gray);
}

.offer-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray);
    white-space: nowrap;
    margin-left: 16px;
}

.offer-total {
    max-width: 720px;
    margin: 32px auto 0;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid rgba(0, 229, 255, 0.15);
    border-radius: var(--radius);
}

.offer-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 1rem;
    color: var(--gray-light);
}

.offer-total-row:last-child {
    margin-bottom: 0;
}

.offer-total-old {
    text-decoration: line-through;
    color: var(--gray);
    font-size: 1.1rem;
}

.offer-total-final {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.offer-total-price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--cyan);
}

.offer-cta-wrap {
    text-align: center;
    margin-top: 40px;
}

/* === STEPS === */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.step-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 36px 28px;
}

.step-num {
    display: inline-block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--cyan);
    opacity: 0.4;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.95rem;
    color: var(--gray-light);
    line-height: 1.55;
}

/* === SOCIAL PROOF === */
.section-proof {
    background: var(--bg-light);
    text-align: center;
}

.section-proof .section-desc {
    margin-left: auto;
    margin-right: auto;
}

.proof-video {
    max-width: 700px;
    margin: 0 auto 48px;
}

.proof-video-inner {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg);
    border: 1px solid rgba(255,255,255,0.08);
}

.proof-video-inner iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.proof-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 700px;
    margin: 0 auto 40px;
    text-align: left;
}

.proof-card {
    background: var(--bg);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 24px;
}

.proof-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: var(--gray);
}

.proof-card-text {
    font-size: 0.95rem;
    line-height: 1.55;
    margin-bottom: 12px;
}

.proof-card-meta {
    font-size: 0.8rem;
    color: var(--gray);
}

.proof-tagline {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-light);
    line-height: 1.5;
}

/* === FAQ === */
.section-faq {
    text-align: center;
}

.faq-list {
    max-width: 680px;
    margin: 40px auto 0;
    text-align: left;
}

.faq-item {
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.faq-item summary {
    padding: 20px 0;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: color 0.2s;
}

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

.faq-item summary::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--cyan);
    flex-shrink: 0;
    transition: transform 0.3s;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary:hover {
    color: var(--cyan);
}

.faq-item p {
    padding: 0 0 20px;
    font-size: 0.95rem;
    color: var(--gray-light);
    line-height: 1.6;
}

/* === FINAL CTA === */
.section-final {
    text-align: center;
    background:
        radial-gradient(ellipse 70% 50% at 50% 100%, rgba(0, 102, 255, 0.12) 0%, transparent 60%),
        var(--bg-light);
    padding: 120px 0;
}

.final-title {
    font-size: clamp(2rem, 6vw, 3.2rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.final-price {
    font-size: 1.2rem;
    margin-bottom: 28px;
}

.final-price-old {
    text-decoration: line-through;
    color: var(--gray);
    margin-right: 12px;
    font-size: 1.1rem;
}

.final-price-now {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--cyan);
}

.final-note {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--gray);
}

/* === FOOTER === */
.footer {
    padding: 40px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

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

.footer-brand {
    font-size: 0.85rem;
    color: var(--gray);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--gray);
    transition: color 0.2s;
}

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

/* === ANIMATIONS === */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hero animations */
.hero-tag, .hero-title, .hero-sub, .hero .btn, .hero-note {
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-tag { animation-delay: 0.1s; }
.hero-title { animation-delay: 0.2s; }
.hero-sub { animation-delay: 0.35s; }
.hero .btn { animation-delay: 0.5s; }
.hero-note { animation-delay: 0.6s; }

@keyframes heroFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    :root {
        --section-pad: 72px;
    }

    .container {
        padding: 0 16px;
    }

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

    .btn-lg {
        padding: 16px 32px;
        font-size: 1rem;
        width: 100%;
        max-width: 360px;
    }

    .problem-grid {
        grid-template-columns: 1fr;
    }

    .solution-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .offer-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .offer-value {
        margin-left: 44px;
    }

    .proof-posts {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 380px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .final-title {
        font-size: 1.8rem;
    }
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hero-tag, .hero-title, .hero-sub, .hero .btn, .hero-note {
        opacity: 1;
        transform: none;
        animation: none;
    }
}

/* Fix video player for vertical 9:16 video */
.proof-video {
    max-width: 350px !important;
    margin: 0 auto 48px !important;
}

.proof-video-inner {
    padding-bottom: 177.78% !important;
    height: 0 !important;
}

.proof-video-inner video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}