:root {
    --bg-dark:       #0d1117;
    --bg-surface:    #161b25;
    --bg-card:       rgba(22, 27, 37, 0.85);
    --primary:       #c0392b;
    --primary-light: #e74c3c;
    --primary-glow:  rgba(192, 57, 43, 0.4);
    --accent:        #e74c3c;
    --text-main:     #f0f2f5;
    --text-muted:    #8b939e;
    --glass-border:  rgba(255, 255, 255, 0.07);
    --card-radius:   16px;
}

/* ────────────────────── Reset ────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body.modern-hotsite {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ────────────────────── Navbar ────────────────────── */
.modern-navbar {
    background: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 3rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modern-navbar .logo img {
    height: 52px;
    display: block;
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    letter-spacing: 0.02em;
}

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

.btn-entrar {
    background: var(--primary);
    color: #fff !important;
    padding: 0.5rem 1.4rem;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.2s, box-shadow 0.2s !important;
}

.btn-entrar:hover {
    background: var(--primary-light) !important;
    box-shadow: 0 4px 18px var(--primary-glow);
}

/* ────────────────────── Hero ────────────────────── */
.hero {
    min-height: 92vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem 4rem;
    background:
        radial-gradient(ellipse 55% 40% at 50% 30%, rgba(192, 57, 43, 0.12) 0%, transparent 70%),
        linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-surface) 100%);
}

.hero-tag {
    display: inline-block;
    background: rgba(192, 57, 43, 0.12);
    border: 1px solid rgba(192, 57, 43, 0.3);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.35rem 1rem;
    border-radius: 99px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    max-width: 780px;
    margin-bottom: 1.25rem;
    color: var(--text-main);
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto 2.5rem;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 4px 20px var(--primary-glow);
    transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

.btn-secondary {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    border: 1px solid var(--glass-border);
    transition: border-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text-main);
}

/* ────────────────────── AI Section ────────────────────── */
.ai-section {
    padding: 5rem 2rem;
    background: var(--bg-surface);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.section-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 2.5rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-muted);
    max-width: 580px;
    font-size: 1rem;
}

.ai-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

/* AI Chat Mockup */
.ai-chat-mockup {
    background: #0a0d12;
    border-radius: var(--card-radius);
    padding: 1.5rem;
    border: 1px solid rgba(192, 57, 43, 0.25);
    font-size: 0.88rem;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.chat-header .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.chat-header .label { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0.06em; }

.chat-bubble {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    margin-bottom: 0.9rem;
    line-height: 1.5;
}

.bubble-ai {
    background: rgba(192, 57, 43, 0.08);
    border-left: 3px solid var(--accent);
    color: var(--text-main);
}

.bubble-user {
    background: rgba(255, 255, 255, 0.04);
    text-align: right;
    color: var(--text-muted);
    margin-left: 20%;
}

.ai-copy {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ai-stat {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.ai-stat-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: rgba(192, 57, 43, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1rem;
}

.ai-stat h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.25rem; }
.ai-stat p { font-size: 0.85rem; color: var(--text-muted); }

/* ────────────────────── Feature Grid ────────────────────── */
.features-section {
    padding: 5rem 2rem;
    background: var(--bg-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    padding: 1.75rem;
    transition: border-color 0.25s, transform 0.25s;
}

.feature-card:hover {
    border-color: rgba(192, 57, 43, 0.35);
    transform: translateY(-4px);
}

.feature-icon {
    width: 44px;
    height: 44px;
    background: rgba(192, 57, 43, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ────────────────────── CTA Banner ────────────────────── */
.cta-section {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, rgba(192,57,43,0.12) 0%, transparent 60%), var(--bg-surface);
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.cta-section h2 {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-section p { color: var(--text-muted); margin-bottom: 2rem; font-size: 1rem; }

/* ────────────────────── Footer ────────────────────── */
.modern-footer {
    padding: 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.modern-footer .social-links { margin-top: 0.75rem; display: flex; gap: 1rem; justify-content: center; }
.modern-footer .social-links a { color: var(--text-muted); transition: color 0.2s; }
.modern-footer .social-links a:hover { color: var(--accent); }

/* ────────────────────── Animations ────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

.animate-fade { animation: fadeUp 0.7s ease-out both; }
.animate-fade-2 { animation: fadeUp 0.7s 0.15s ease-out both; }
.animate-fade-3 { animation: fadeUp 0.7s 0.3s ease-out both; }

/* ────────────────────── Responsive ────────────────────── */
@media (max-width: 768px) {
    .modern-navbar { padding: 0.75rem 1.25rem; }
    .nav-links { display: none; }
    .ai-grid { grid-template-columns: 1fr; }
}