/* Landing — tema escuro, moderno */

.section-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: clamp(56px, 8vw, 88px) 24px;
}

.hero {
    background: var(--bg-dark);
    padding-top: 32px;
}

.hero-content {
    text-align: center;
}

.eyebrow {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 18px;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(28px, 3.8vw, 42px);
    font-weight: 600;
    line-height: 1.3;
    margin: 0 auto 20px;
    max-width: 620px;
    color: var(--text-primary);
}

.sub {
    color: var(--highlight);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 18px;
}

.desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto 36px;
}

.btn-primary {
    display: inline-block;
    padding: 14px 28px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-primary.btn-large {
    padding: 16px 36px;
}

.problem {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

.problem-block {
    text-align: center;
}

.problem-badge {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.problem h2 {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.8vw, 28px);
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.problem-flow p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.problem-break strong {
    color: var(--highlight);
}

.highlight {
    color: var(--accent);
    font-weight: 600;
    margin-top: 18px;
}

.preview {
    background: var(--bg-dark);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(20px, 2.5vw, 26px);
    font-weight: 600;
    margin-bottom: 36px;
    text-align: center;
    color: var(--text-primary);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 36px;
}

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

.card {
    padding: 26px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.card:hover {
    border-color: var(--accent-soft);
    box-shadow: var(--shadow);
}

.card-num {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin-bottom: 12px;
}

.card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.55;
}

.btn-outline {
    display: inline-block;
    padding: 12px 24px;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s;
}

.btn-outline:hover {
    background: var(--accent);
    color: #fff;
}

.solution {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

.solution-card {
    max-width: 540px;
    margin: 0 auto;
    padding: 36px 32px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.solution-card h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.solution-lead {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 18px;
}

.solution-list {
    list-style: none;
    margin-bottom: 18px;
}

.solution-list li {
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.solution-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.solution-punch {
    font-weight: 600;
    color: var(--text-primary);
}

.stake {
    background: var(--bg-dark);
}

.stake h2 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.stake-lead {
    color: var(--highlight);
    font-weight: 600;
    margin-bottom: 10px;
}

.stake-body {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.65;
}

.final {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

.final h2 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.final p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to { opacity: 1; }
}