/* ===================================
   CSS Variables (Design Tokens)
   =================================== */
:root {
    /* Colors - Premium Dark Theme with Green Accent */
    --primary-color: #25d366;
    --primary-light: #34e879;
    --primary-dark: #128c7e;
    --secondary-color: #b0b0b0;
    --secondary-light: #d0d0d0;
    --accent-color: #25d366;
    --accent-light: #34e879;
    
    /* Neutrals */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-light: rgba(255, 255, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Gradients - Premium Dark with Green */
    --gradient-primary: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    --gradient-secondary: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    --gradient-accent: linear-gradient(135deg, #25d366 0%, #34e879 100%);
    --gradient-hero: linear-gradient(135deg, #25d366 0%, #128c7e 50%, #075e54 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: #ffffff;
    background-color: #000000;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color var(--transition-base);
}

a:hover {
    color: var(--primary-light);
}

/* ===================================
   Layout Utilities
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-padding {
    padding: var(--spacing-2xl) 0;
}

@media (min-width: 768px) {
    .section-padding {
        padding: 5rem 0;
    }
}

@media (min-width: 1024px) {
    .section-padding {
        padding: 7rem 0;
    }
}

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.15) 0%, rgba(37, 211, 102, 0.05) 100%);
    color: #25d366;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(37, 211, 102, 0.25);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* ===================================
   Particles Background
   =================================== */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.98);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
}

.logo-image {
    height: 40px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: #ffffff;
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.cta-nav {
    background: var(--gradient-primary);
    color: #000000;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.nav-link.cta-nav::after {
    display: none;
}

.nav-link.cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

/* ===================================
   Hero Section - Premium Layout
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    padding-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.hero-background-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.15) 0%, rgba(37, 211, 102, 0.05) 40%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-centered {
    max-width: 800px;
    margin-bottom: 3rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.2) 0%, rgba(37, 211, 102, 0.1) 100%);
    border: 1px solid rgba(37, 211, 102, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #25d366;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Phone Showcase */
.hero-phone-showcase {
    position: relative;
    margin-bottom: 3rem;
}

.phone-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.3) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

.phone-mockup {
    width: 320px;
    height: 650px;
    background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 50%, #0a0a0a 100%);
    border-radius: 3rem;
    padding: 0.75rem;
    box-shadow: 
        0 50px 100px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    transform-origin: center;
}

.phone-notch {
    position: absolute;
    top: 0.75rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 20px;
    background: #000;
    border-radius: 0 0 12px 12px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #000000;
    border-radius: 2.25rem;
    overflow: hidden;
}

/* Hero CTA Section */
.hero-cta-section {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.btn-ghost {
    background: transparent;
    color: rgba(255, 255, 255, 0.8);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    padding: 1rem 1.5rem;
    transition: color 0.3s ease;
}

.btn-ghost:hover {
    color: #25d366;
}

.btn-ghost i {
    font-size: 1.2rem;
}

/* Hero Stats Bar */
.hero-stats-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 1.5rem 3rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 100px;
    backdrop-filter: blur(10px);
}

.hero-stats-bar .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.hero-stats-bar .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #25d366;
}

.hero-stats-bar .stat-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .hero-stats-bar {
        flex-wrap: wrap;
        border-radius: 20px;
        padding: 1rem 1.5rem;
        gap: 1rem;
    }
    
    .stat-divider {
        display: none;
    }
    
    .phone-mockup {
        width: 280px;
        height: 570px;
    }
}

/* Old hero styles - keeping for backward compatibility */
.hero-visual {
    display: none;
}

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

.chat-interface {
    height: 100%;
    display: flex;
    flex-direction: column;
    background: #e5ddd5 url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.05"><circle cx="50" cy="50" r="2" fill="%23000"/></svg>');
    background-size: 30px 30px;
}

.chat-header {
    background: #075e54;
    color: white;
    padding: 1.5rem 0.6rem 0.5rem 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: none;
}

.chat-header .back-arrow {
    font-size: 1rem;
    color: #ffffff;
    cursor: pointer;
}

.chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #25d366;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: white;
}

.chat-header-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.chat-header-info .chat-name {
    font-weight: 600;
    font-size: 0.85rem;
}

.chat-header-info .chat-status {
    font-size: 0.65rem;
    opacity: 0.9;
}

.chat-header-actions {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.chat-header i {
    font-size: 1rem;
    color: #ffffff;
}

.chat-messages {
    flex: 1;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow-y: auto;
}

.message {
    max-width: 75%;
    width: fit-content;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-lg);
    animation: messageSlide 0.5s ease-out;
    font-size: 0.75rem;
}

.message.received {
    align-self: flex-start;
    background: #ffffff;
    color: #000000 !important;
    border: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) var(--radius-lg);
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
    text-align: left;
}

.message.received p {
    color: #000000 !important;
    margin: 0;
    text-align: left;
}

.message.sent {
    align-self: flex-end;
    background: #dcf8c6;
    color: #000000 !important;
    border: none;
    border-radius: var(--radius-lg) 0 var(--radius-lg) var(--radius-lg);
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
    text-align: left;
}

.message.sent p {
    color: #000000 !important;
    margin: 0;
    text-align: left;
}

.agent-label {
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    opacity: 0.9;
    color: #075e54;
    text-align: left;
}

.agent-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
    font-size: 0.65rem;
    color: #667781;
}

.agent-switch-badge {
    background: rgba(0, 0, 0, 0.08);
    padding: 0.25rem 0.6rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 500;
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.1);
}

.agent-switch-badge i {
    font-size: 0.6rem;
    color: #075e54;
}

/* Animação de entrada das mensagens */
@keyframes messageIn {
    0% {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes messageOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.8);
    }
}

.chat-messages .message,
.chat-messages .agent-switch,
.chat-messages .typing-indicator {
    opacity: 0;
    visibility: hidden;
}

.chat-messages .message.show,
.chat-messages .agent-switch.show,
.chat-messages .typing-indicator.show {
    opacity: 1;
    visibility: visible;
    animation: messageIn 0.3s ease-out forwards;
}

.chat-messages .typing-indicator.hide {
    animation: messageOut 0.15s ease-out forwards;
    pointer-events: none;
}

/* Typing indicator (antes das mensagens) */
.typing-indicator {
    align-self: flex-start;
    background: #ffffff;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 1rem 1.2rem;
    border: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) var(--radius-lg);
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
    width: fit-content;
    min-width: 50px;
    height: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

.typing-indicator.show {
    height: auto;
    padding: 1rem 1.2rem;
    margin-bottom: 0;
}

.typing-indicator span {
    width: 7px;
    height: 7px;
    background: #9e9e9e;
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

/* Typing indicator do cliente (direita) */
.typing-indicator.client-typing {
    align-self: flex-end;
    background: #dcf8c6;
    border-radius: var(--radius-lg) 0 var(--radius-lg) var(--radius-lg);
}

.typing-indicator.client-typing span {
    background: #128c7e;
}

.message.typing {
    background: #dcf8c6;
    display: flex;
    gap: 4px;
    padding: 0.5rem 0.6rem;
    border: none;
    border-radius: var(--radius-lg) 0 var(--radius-lg) var(--radius-lg);
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
    align-self: flex-end;
}

.message.typing span {
    width: 6px;
    height: 6px;
    background: #128c7e;
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.message.typing span:nth-child(2) {
    animation-delay: 0.2s;
}

.message.typing span:nth-child(3) {
    animation-delay: 0.4s;
}

/* ===================================
   Overview Section
   =================================== */
.overview {
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 100%);
}

.overview-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .overview-content {
        grid-template-columns: 1fr 1fr;
    }
}

.overview-features {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.overview-feature {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.overview-feature:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 16px rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.overview-feature i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.overview-feature h4 {
    margin-bottom: 0.25rem;
    color: #ffffff;
}

.overview-feature p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Dashboard Mockup */
.dashboard-mockup {
    background: linear-gradient(135deg, #0a0a0a 0%, #000000 100%);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(255, 255, 255, 0.1);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dashboard-header {
    background: linear-gradient(135deg, #1a1a1a 0%, #0f0f0f 100%);
    color: white;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dashboard-actions {
    display: flex;
    gap: 8px;
}

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

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.dashboard-content {
    padding: var(--spacing-lg);
    display: grid;
    gap: var(--spacing-md);
    background: #000000;
}

.metric-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: var(--radius-lg);
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.metric-card i {
    font-size: 2rem;
    color: #ffffff;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    display: block;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===================================
   Benefits Section
   =================================== */
.benefits {
    background: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.benefit-card {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 1px solid rgba(37, 211, 102, 0.15);
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(37, 211, 102, 0.15);
    border-color: rgba(37, 211, 102, 0.4);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.benefit-icon i {
    font-size: 1.75rem;
    color: #ffffff;
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: #ffffff;
}

.benefit-card p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ===================================
   Features Section
   =================================== */
.features {
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    position: relative;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.03) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-base);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(37, 211, 102, 0.1);
    border-color: rgba(37, 211, 102, 0.3);
}

.feature-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 700;
    color: rgba(37, 211, 102, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.15) 0%, rgba(37, 211, 102, 0.05) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(37, 211, 102, 0.2);
}

.feature-icon i {
    font-size: 1.5rem;
    color: #25d366;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: #ffffff;
}

.feature-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===================================
   Use Cases Section
   =================================== */
.use-cases {
    background: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.use-case-card {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: var(--radius-2xl);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.use-case-card:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.use-case-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #ffffff 0%, #e5e5e5 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.use-case-icon i {
    font-size: 2rem;
    color: #000000;
}

.use-case-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: #ffffff;
}

.use-case-card p {
    color: var(--text-secondary);
}

.use-case-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.use-case-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.use-case-features i {
    color: #ffffff;
}

/* ===================================
   How to Start Section (Timeline)
   =================================== */
.how-to-start {
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 100%);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    align-items: center;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 3;
    text-align: left;
}

.timeline-marker {
    grid-column: 2;
    z-index: 10;
}

.timeline-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: #000000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
}

.timeline-content {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline-content:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: #ffffff;
}

.timeline-content p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

@media (min-width: 1024px) {
    .contact-wrapper {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: #ffffff;
}

.contact-info .lead-text {
    color: var(--text-secondary);
}

.contact-features {
    display: grid;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.contact-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: #ffffff;
}

.contact-feature i {
    color: #ffffff;
    font-size: 1.25rem;
}

.contact-info-details {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.info-item i {
    font-size: 1.5rem;
    color: #ffffff;
}

.info-item strong {
    display: block;
    margin-bottom: 0.25rem;
    color: #ffffff;
}

.info-item p {
    margin: 0;
    color: var(--text-secondary);
}

/* Contact Form */
.contact-form-wrapper {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-form {
    display: grid;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: #ffffff;
}

.form-group input,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: rgba(0, 0, 0, 0.5);
    color: #ffffff;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #25d366;
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.15);
    background: rgba(0, 0, 0, 0.7);
}

/* Input error state */
.form-group input.input-error,
.form-group textarea.input-error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-group input.input-error:focus,
.form-group textarea.input-error:focus {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 100%);
    color: var(--text-secondary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-logo-image {
    height: 36px;
    width: auto;
    display: block;
    margin-bottom: var(--spacing-md);
}

.footer-column p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-column h4 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li a {
    color: var(--text-light);
    transition: color var(--transition-base);
}

.footer-column ul li a:hover {
    color: white;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-list i {
    color: var(--primary-light);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* ===================================
   Scroll to Top Button
   =================================== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
    box-shadow: var(--shadow-xl);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes typing {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ===================================
   Responsive Design
   =================================== */

/* Mobile Menu */
@media (max-width: 1023px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: var(--spacing-xl);
        transition: left var(--transition-base);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* Timeline Mobile */
@media (max-width: 767px) {
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        grid-template-columns: auto 1fr;
        gap: var(--spacing-md);
    }
    
    .timeline-item:nth-child(even) .timeline-content,
    .timeline-item:nth-child(odd) .timeline-content {
        grid-column: 2;
        grid-row: 1;
        text-align: left;
    }
    
    .timeline-marker {
        grid-column: 1;
    }
    
    .timeline-number {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

/* Tablet and below */
@media (max-width: 1023px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .overview-content {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .header,
    .scroll-top,
    #particles-js {
        display: none;
    }
    
    .section-padding {
        padding: 2rem 0;
    }
}