/* ==============================
   CSS VARIABLES & GLOBAL RESET
============================== */
:root {
    /* Colors */
    --bg-dark: #0a0a0c;
    --bg-surface: #121216;
    --bg-surface-hover: #1a1a20;
    
    --primary: #00f0ff; /* Neon cyan */
    --primary-glow: rgba(0, 240, 255, 0.4);
    --secondary: #7000ff; /* Deep purple */
    --secondary-glow: rgba(112, 0, 255, 0.4);
    
    --text-main: #ffffff;
    --text-muted: #a1a1aa;
    
    --border-color: rgba(255, 255, 255, 0.08);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Viewport & Spacing */
    --max-width: 1200px;
    --section-pad: 100px 20px;
}

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

html {
    scroll-behavior: smooth;
}

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

/* ==============================
   TYPOGRAPHY
============================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.text-gradient {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.highlight {
    color: var(--primary);
}

/* ==============================
   LAYOUT & UTILITIES
============================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

/* ==============================
   BUTTONS
============================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--text-main);
    color: var(--bg-dark);
    padding: 1rem 2rem;
    font-size: 1.125rem;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.5rem;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-sm {
    font-size: 0.875rem;
    padding: 10px 20px;
}

/* ==============================
   NAVBAR
============================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 10, 12, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 20px;
}

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

.logo-text {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--text-main);
}

/* Responsive Nav */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile hide for now */
    }
}

/* ==============================
   HERO SECTION
============================== */
.hero {
    position: relative;
    padding: 180px 20px 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: var(--primary-glow);
    top: -200px;
    left: -200px;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary-glow);
    bottom: 0;
    right: -100px;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    animation: fadeInDown 1s ease-out;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-cta-group {
    animation: fadeInUp 1s ease-out 0.6s both;
}

.cta-note {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==============================
   ANIMATIONS
============================== */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(0, 240, 255, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}

/* ==============================
   SECTIONS & SPACING
============================== */
.section {
    padding: var(--section-pad);
}
.bg-surface {
    background-color: var(--bg-surface);
}
.text-center {
    text-align: center;
}
.section-header {
    margin-bottom: 4rem;
}
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}
.section-subtitle {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.125rem;
}

/* ==============================
   CARDS & GRIDS
============================== */
.card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s, background 0.3s;
}
.card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 240, 255, 0.3);
}
.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* ==============================
   SPLIT LAYOUT (Solução & Mentor)
============================== */
.solution-content, .mentor-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.placeholder-box {
    background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
    border: 1px dashed var(--border-color);
    border-radius: 20px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-family: var(--font-heading);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.feature-list {
    list-style: none;
    margin-top: 2rem;
}
.feature-list li {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-muted);
}
.feature-list strong {
    color: var(--text-main);
}

/* ==============================
   OFFER SECTION
============================== */
.offer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-top: 4rem;
}
.offer-items {
    list-style: none;
    margin: 1.5rem 0;
}
.offer-items li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}
.offer-items .value {
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.875rem;
}
.offer-total {
    margin-top: 2rem;
    font-size: 1.5rem;
    color: var(--text-muted);
}
.offer-card {
    background: linear-gradient(180deg, var(--bg-surface) 0%, rgba(112,0,255,0.1) 100%);
    border: 1px solid rgba(112, 0, 255, 0.3);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}
.guarantee-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-main);
    color: var(--bg-dark);
    padding: 8px 16px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 0.875rem;
    white-space: nowrap;
    letter-spacing: -0.5px;
}
.price {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
    margin-top: 1rem;
}
.price-highlight {
    font-size: 2.8rem;
    color: var(--primary);
    font-weight: 900;
    display: block;
}
.price-sub {
    color: var(--text-muted);
    margin-bottom: 2rem;
}
.btn-block {
    width: 100%;
}
.security-note {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1.25rem;
}

/* ==============================
   FAQ (ACCORDION)
============================== */
.accordion {
    max-width: 800px;
    margin: 3rem auto 0;
}
.accordion-item {
    border-bottom: 1px solid var(--border-color);
}
.accordion-header {
    width: 100%;
    text-align: left;
    padding: 1.5rem 0;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
}
.accordion-header::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s;
}
.accordion-header.active::after {
    content: '-';
    transform: rotate(180deg);
}
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}
.accordion-content p {
    padding-bottom: 1.5rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* ==============================
   FOOTER
============================== */
.footer {
    padding: 3rem 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-surface);
}
.footer-disclaimer {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.3);
    margin-top: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ==============================
   RESPONSIVE
============================== */
@media (max-width: 900px) {
    .solution-content, .mentor-content, .offer-grid {
        grid-template-columns: 1fr;
    }
    .mentor-image, .solution-image {
        order: -1;
        height: 300px;
    }
}