:root {
    --bg-base: rgba(13, 11, 26, 0.2);
    --bg-elevated: rgba(22, 19, 42, 0.7);
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --accent-indigo: #6366F1;
    --accent-violet: #A78BFA;
    --accent-cyan: #67E8F9;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: #0D0B1A; /* Solid base behind canvas */
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

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

/* Animations */
@keyframes pulseRing {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.2; }
    100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
}

@keyframes glowGlow {
    0% { box-shadow: 0 0 10px rgba(99, 102, 241, 0.2); }
    50% { box-shadow: 0 0 25px rgba(167, 139, 250, 0.5); }
    100% { box-shadow: 0 0 10px rgba(99, 102, 241, 0.2); }
}

.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.hidden-for-anim {
    opacity: 0;
    transform: translateY(20px);
}

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

/* Buttons */
.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-violet));
    color: white;
    font-family: var(--font-heading);
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.w-full {
    width: 100%;
}

/* Header */
.header {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.nav-links {
    display: none;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
        align-items: center;
        gap: 2rem;
    }
    .nav-links a:not(.btn-primary) {
        color: var(--text-muted);
        font-weight: 500;
        transition: color 0.3s;
    }
    .nav-links a:not(.btn-primary):hover {
        color: var(--text-main);
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 4rem 0;
    overflow: hidden;
}

#cymatic-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
}

main, header, footer {
    position: relative;
    z-index: 1;
}

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

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #FFF, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero .subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.badge {
    font-size: 0.875rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 3.5rem;
    }
    .cymatics-bg {
        right: 10%;
    }
}

/* Social Proof Stats */
.social-proof {
    background: var(--bg-elevated);
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@media (min-width: 768px) {
    .stats-container {
        flex-direction: row;
        justify-content: space-around;
    }
}

/* Como Funciona */
.how-it-works {
    padding: 5rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.step-card {
    background: var(--bg-elevated);
    padding: 2rem;
    border-radius: 12px;
    position: relative;
    border: 1px solid rgba(255,255,255,0.05);
    backdrop-filter: blur(12px);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--accent-indigo);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
}

.step-card h3 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.step-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* O que vem */
.whats-included {
    padding: 5rem 0;
    background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-elevated) 100%);
}

.included-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.included-card {
    background: var(--bg-base);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid rgba(167, 139, 250, 0.2);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
}

.cymatic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 100% 0%, rgba(167, 139, 250, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.included-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
}

.included-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-indigo);
}

@media (min-width: 768px) {
    .included-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Frequency Showcase */
.frequency-showcase {
    padding: 5rem 0;
}

.freq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.freq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
    backdrop-filter: blur(12px);
}

.freq-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-violet);
    animation: glowGlow 2s infinite;
}

.freq-hz {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 0.25rem;
}

.freq-intent {
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .freq-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

/* Who is for */
.who-is-for {
    padding: 5rem 0;
    background: var(--bg-elevated);
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.for-who h3, .not-for-who h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid;
}

.for-who h3 {
    border-color: var(--accent-cyan);
}

.not-for-who h3 {
    border-color: #EF4444; /* Red accent for Not For */
}

.for-who ul, .not-for-who ul {
    list-style: none;
}

.for-who ul li, .not-for-who ul li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.for-who ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-weight: bold;
}

.not-for-who ul li::before {
    content: '×';
    position: absolute;
    left: 0;
    color: #EF4444;
    font-weight: bold;
    font-size: 1.2rem;
    line-height: 1;
}

@media (min-width: 768px) {
    .split-layout {
        grid-template-columns: 1fr 1fr;
    }
}

/* Offer / Pricing */
.offer-section {
    padding: 5rem 0;
}

.pricing-card {
    max-width: 500px;
    margin: 0 auto;
    background: linear-gradient(145deg, var(--bg-elevated), var(--bg-base));
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.1);
    backdrop-filter: blur(16px);
}

.pricing-card h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.offer-list {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.offer-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.offer-list li::before {
    content: '✓';
    color: var(--accent-violet);
    margin-right: 0.5rem;
}

.price {
    margin-bottom: 2rem;
}

.old-price {
    display: block;
    text-decoration: line-through;
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.new-price {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.payment-methods {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
}

/* FAQ */
.faq-section {
    padding: 5rem 0;
    background: var(--bg-elevated);
}

.faq-accordion {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
    backdrop-filter: blur(12px);
    background: var(--bg-elevated);
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-body);
}

.faq-icon {
    color: var(--accent-cyan);
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: rgba(0, 0, 0, 0.2);
}

.faq-answer p {
    padding: 0 1.25rem 1.25rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.disclaimer {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-bottom: 1rem;
}

.social-link {
    font-size: 0.875rem;
    color: var(--accent-violet);
    text-decoration: underline;
}