/* ================================================
   REVENDA CS - Modern Tech Design
   Color Palette: Black, Silver, Orange
   ================================================ */

/* CSS Variables */
:root {
    --black: #0a0a0a;
    --black-light: #141414;
    --black-lighter: #1a1a1a;
    --silver-dark: #888888;
    --silver: #b8b8b8;
    --silver-light: #d4d4d4;
    --white: #f5f5f5;
    --orange: #ff6b35;
    --orange-light: #ff8c5a;
    --orange-dark: #e55a25;
    --orange-glow: rgba(255, 107, 53, 0.3);
    --gradient-orange: linear-gradient(135deg, #ff6b35 0%, #ff8c5a 100%);
    --gradient-dark: linear-gradient(135deg, #141414 0%, #0a0a0a 100%);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-orange: 0 4px 30px rgba(255, 107, 53, 0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--silver-light);
    background: var(--black);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--white);
}

/* SEO Hidden Content */
.seo-content {
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ================================================
   HEADER
   ================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    text-decoration: none;
}

.brand-logo i {
    font-size: 1.6rem;
    color: var(--orange);
}

.nav-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--gradient-orange);
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-orange);
}

.nav-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 35px rgba(255, 107, 53, 0.4);
}

/* ================================================
   HERO SECTION
   ================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 24px 80px;
    overflow: hidden;
}

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

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 107, 53, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 107, 53, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--orange);
    top: 10%;
    right: 10%;
    animation: float 8s ease-in-out infinite;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--silver-dark);
    bottom: 20%;
    left: 5%;
    animation: float 10s ease-in-out infinite reverse;
}

.orb-3 {
    width: 200px;
    height: 200px;
    background: var(--orange-dark);
    top: 50%;
    left: 40%;
    animation: float 12s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(20px, -20px) scale(1.05); }
    66% { transform: translate(-15px, 15px) scale(0.95); }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 580px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--orange);
    margin-bottom: 24px;
}

.badge i {
    font-size: 0.9rem;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 800;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--white) 0%, var(--silver) 50%, var(--orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .subtitle {
    font-size: 1.15rem;
    color: var(--silver);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 36px;
}

.tag {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    color: var(--silver);
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(255, 107, 53, 0.1);
    border-color: rgba(255, 107, 53, 0.3);
    color: var(--orange-light);
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-orange);
    color: var(--white);
    box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--silver-light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--orange);
    color: var(--orange);
}

.btn-outline:hover {
    background: var(--orange);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-card {
    width: 100%;
    background: var(--gradient-orange);
    color: var(--white);
    box-shadow: var(--shadow-orange);
}

.btn-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 35px rgba(255, 107, 53, 0.4);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.05rem;
}

/* Dashboard Preview */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dashboard-preview {
    width: 100%;
    max-width: 480px;
    background: var(--black-lighter);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    box-shadow:
        0 25px 80px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(255, 107, 53, 0.1);
    animation: dashboardFloat 6s ease-in-out infinite;
}

@keyframes dashboardFloat {
    0%, 100% { transform: translateY(0) rotate(-1deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--black-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.window-controls {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.dashboard-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--silver);
}

.dashboard-title i {
    color: var(--orange);
}

.dashboard-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 20px;
}

.dash-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.dash-card:hover {
    background: rgba(255, 107, 53, 0.08);
    border-color: rgba(255, 107, 53, 0.2);
    transform: translateY(-3px);
}

.dash-card i {
    font-size: 1.5rem;
    color: var(--orange);
}

.dash-card span {
    font-size: 0.8rem;
    color: var(--silver-dark);
}

.dash-card strong {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
}

/* ================================================
   STATS SECTION
   ================================================ */
.stats {
    padding: 80px 0;
    background: var(--black-light);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(255, 107, 53, 0.05);
    border-color: rgba(255, 107, 53, 0.2);
    transform: translateY(-5px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-orange);
    border-radius: var(--radius-md);
    font-size: 1.4rem;
    color: var(--white);
}

.stat-content h3 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 4px;
}

.stat-content p {
    font-size: 0.9rem;
    color: var(--silver-dark);
}

/* ================================================
   SECTION HEADER
   ================================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--orange);
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--white) 0%, var(--silver) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--silver);
    line-height: 1.7;
}

/* ================================================
   PRICING SECTION
   ================================================ */
.pricing {
    padding: 100px 0;
    background: var(--black);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.price-card {
    position: relative;
    background: var(--black-lighter);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all 0.3s ease;
}

.price-card:hover {
    border-color: rgba(255, 107, 53, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.price-card.popular {
    border: 2px solid var(--orange);
    background: linear-gradient(180deg, rgba(255, 107, 53, 0.08) 0%, var(--black-lighter) 100%);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--gradient-orange);
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--white);
    white-space: nowrap;
}

.price-header {
    text-align: center;
    margin-bottom: 28px;
}

.price-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: var(--radius-md);
    font-size: 1.6rem;
    color: var(--orange);
}

.price-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
}

.price-body {
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 24px;
}

.price-item {
    text-align: center;
    padding: 16px 0;
}

.price-item .amount {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
}

.price-item .period {
    font-size: 1rem;
    color: var(--silver-dark);
    margin-left: 4px;
}

.price-item .desc {
    display: block;
    font-size: 0.9rem;
    color: var(--silver);
    margin-top: 6px;
}

.price-item.featured .amount {
    color: var(--orange);
}

.price-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.06);
    margin: 8px 0;
}

.price-features {
    list-style: none;
    margin-bottom: 28px;
}

.price-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 0.95rem;
    color: var(--silver);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.price-features li:last-child {
    border-bottom: none;
}

.price-features i {
    color: var(--orange);
    font-size: 0.9rem;
}

.pricing-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 50px;
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
}

.pricing-note i {
    font-size: 1.5rem;
    color: var(--orange);
}

.pricing-note p {
    font-size: 0.95rem;
    color: var(--silver);
}

.pricing-note strong {
    color: var(--white);
}

/* ================================================
   FEATURES SECTION
   ================================================ */
.features {
    padding: 100px 0;
    background: var(--black-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    padding: 36px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-orange);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 107, 53, 0.04);
    border-color: rgba(255, 107, 53, 0.2);
    transform: translateY(-8px);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: var(--radius-md);
    font-size: 1.4rem;
    color: var(--orange);
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--silver);
    line-height: 1.7;
}

/* ================================================
   CONTACT SECTION
   ================================================ */
.contact {
    padding: 100px 0;
    background: var(--black);
}

.contact-wrapper {
    text-align: center;
}

.contact-header {
    margin-bottom: 50px;
}

.contact-header h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--white) 0%, var(--silver) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-header p {
    font-size: 1.1rem;
    color: var(--silver);
    max-width: 600px;
    margin: 0 auto;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 50px;
}

.contact-card {
    padding: 36px;
    background: var(--black-lighter);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: rgba(255, 107, 53, 0.3);
    transform: translateY(-5px);
}

.contact-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: 50%;
    font-size: 1.6rem;
    color: var(--orange);
}

.contact-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--silver);
}

.contact-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
    padding: 40px 0;
    background: var(--black-light);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.footer-brand i {
    color: var(--orange);
}

.footer-content p {
    font-size: 0.9rem;
    color: var(--silver-dark);
}

/* ================================================
   WHATSAPP FLOAT
   ================================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.6rem;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float .pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #25d366;
    animation: pulse 2s infinite;
    z-index: -1;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.8);
        opacity: 0;
    }
}

/* ================================================
   ANIMATIONS
   ================================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   RESPONSIVE DESIGN
   ================================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-tags {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-cards {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto 50px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 20px 60px;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .hero-text .subtitle {
        font-size: 1rem;
    }

    .dashboard-preview {
        max-width: 350px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .contact-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn-large {
        width: 100%;
        max-width: 300px;
    }

    .pricing-note {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.8rem;
    }

    .badge {
        font-size: 0.75rem;
    }

    .hero-tags .tag {
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .dashboard-preview {
        max-width: 300px;
    }

    .dashboard-body {
        gap: 8px;
        padding: 16px;
    }

    .dash-card {
        padding: 14px 10px;
    }

    .btn {
        padding: 14px 24px;
        font-size: 0.95rem;
    }

    .price-card {
        padding: 28px 20px;
    }

    .feature-card {
        padding: 28px 20px;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
        font-size: 1.4rem;
    }
}