/* Sistema TKD - Premium Black & White Theme */

:root {
    --bg-primary: #050505;
    --bg-secondary: #121212;
    --bg-card: #0a0a0a;
    
    --text-primary: #f5f5f5;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    
    --border-color: #262626;
    --border-strong: #ffffff;
    
    --accent: #ffffff;
    --accent-text: #050505;
    
    --success: #34d399;
    --warning: #fbbf24;

    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.03em;
}

em {
    font-style: normal;
    color: var(--text-muted);
}

.divider {
    height: 1px;
    background-color: var(--border-color);
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    border-bottom: 1px solid var(--border-color);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: var(--accent-text);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-logo-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.nav-logo-text span {
    color: var(--text-muted);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link-login {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.nav-cta {
    background: var(--accent);
    color: var(--accent-text);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 700;
    transition: all 0.2s ease;
}

.nav-cta:hover {
    background: #333333;
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: var(--bg-primary);
    background-image: radial-gradient(circle at center, rgba(0,0,0,0.02) 0%, transparent 70%);
}

.hero-inner {
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(5, 150, 105, 0); }
    100% { box-shadow: 0 0 0 0 rgba(5, 150, 105, 0); }
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent);
    color: var(--accent-text);
    padding: 1.1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    border: 1px solid var(--accent);
}

.btn-primary:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-primary);
    padding: 1.1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--border-strong);
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    max-width: 600px;
    margin: 0 auto;
}

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

.stat-item strong {
    font-size: 1.5rem;
    font-weight: 800;
}

.stat-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Sections */
.section {
    padding: 100px 0;
}

.bg-alt {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto;
    font-size: 1.15rem;
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: minmax(320px, auto);
    gap: 1.5rem;
}

.bento-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.bento-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.bento-main {
    grid-column: span 2;
}

.bento-tall {
    grid-row: span 2;
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.bento-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.bento-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

/* Mock UI Elements */
.sys-ui {
    margin-top: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.sys-ui-compact {
    padding: 1rem;
}

.sys-kpi-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.sys-kpi {
    background: var(--bg-primary);
    padding: 1.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    flex: 1;
    min-width: 140px;
}

.sys-kpi:last-child {
    margin-right: 0; /* Deprecated */
}

.sys-kpi-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.sys-kpi-val {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.sys-kpi-trend {
    font-size: 0.8rem;
    font-weight: 600;
}

.sys-kpi-trend.positive { color: var(--success); }
.sys-kpi-trend.neutral { color: var(--text-muted); }

.sys-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sys-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.avatar {
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.user-name {
    font-weight: 700;
    font-size: 15px;
}

.user-belt {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.sys-tag {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 40px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tag-dark { background: var(--accent); color: var(--accent-text); }
.tag-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }

.agenda-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
}

.agenda-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    align-items: center;
}

.agenda-time { font-weight: 800; font-size: 1.1rem; }
.agenda-title { font-weight: 600; margin-bottom: 0.25rem; }
.agenda-meta { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

.finance-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.finance-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.finance-icon.positive { background: rgba(52, 211, 153, 0.15); color: var(--success); }
.finance-icon.pending { background: rgba(251, 191, 36, 0.15); color: var(--warning); }

.finance-title { font-weight: 700; font-size: 14px; }
.finance-date { font-size: 12px; color: var(--text-muted); font-weight: 500; }

.finance-amount { font-weight: 800; font-size: 1.1rem; }
.finance-amount.positive { color: var(--success); }
.finance-amount.pending { color: var(--warning); }

/* Vantagens */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-box {
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-box h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-box p {
    color: var(--text-secondary);
}

/* Final CTA */
/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
}

.testimonial-text {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 2rem;
    flex-grow: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.author-info strong {
    display: block;
    font-weight: 700;
}

.author-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question svg {
    transition: transform 0.3s;
    color: var(--text-secondary);
}

.faq-question.expanded svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Final CTA */
.final-cta {
    padding: 120px 0;
}

.cta-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 5rem 2rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.cta-box h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.cta-box p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-inline: auto;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-grid.single-plan {
    grid-template-columns: 1fr;
    max-width: 500px;
}

.price-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    position: relative;
}

.price-card.featured {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid #333;
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.price-card.featured h3,
.price-card.featured p,
.price-card.featured .price-amount,
.price-card.featured li {
    color: var(--text-primary);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.4rem 1rem;
    border-radius: 40px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.price-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price-desc {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    line-height: 1;
}

.price-amount span {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.price-card.featured .price-amount span {
    color: var(--text-muted);
}

.price-features {
    list-style: none;
    margin-bottom: 3rem;
    flex-grow: 1;
}

.price-features li {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
}

.price-card.featured .price-features li {
    border-bottom-color: var(--border-color);
}

.btn-outline {
    display: block;
    text-align: center;
    padding: 1.25rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.05rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-outline-black {
    border: 1px solid var(--border-color);
    color: var(--accent);
    background: var(--bg-secondary);
}

.btn-outline-black:hover {
    background: var(--border-color);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 1rem;
    max-width: 320px;
    line-height: 1.6;
}

.footer h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 0.85rem;
}

.footer ul a {
    color: var(--text-secondary);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}

.footer ul a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--text-muted);
    transition: color 0.2s;
}

.social-links a:hover {
    color: var(--text-primary);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128c7e;
    color: #ffffff;
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.6);
}

@keyframes pulse-whatsapp {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@media (max-width: 900px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }
    .bento-main, .bento-tall, .bento-half {
        grid-column: span 1;
        grid-row: auto;
    }
    .hero-title {
        font-size: 3rem;
    }
    .hero-ctas {
        flex-direction: column;
    }
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    .sys-kpi-row {
        flex-direction: column;
        gap: 1.5rem;
    }
    .sys-kpi {
        margin-right: 0;
    }
    .features-grid, .pricing-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .nav-links, .nav-actions {
        display: none;
    }
}