/* ===========================================
   DESIGN SYSTEM - ESTILO LINEAR.APP
   =========================================== */

/* CSS Variables */
:root {
    /* Cores */
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --bg-card: #0f0f11;
    
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --accent-glow-strong: rgba(99, 102, 241, 0.6);
    
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --success: #22c55e;
    --error: #ef4444;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Espaçamento */
    --container-max: 1200px;
    --section-padding: 120px;
    --section-padding-mobile: 80px;
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ===========================================
   RESET & BASE
   =========================================== */

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

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===========================================
   LAYOUT
   =========================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===========================================
   TYPOGRAPHY
   =========================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, #a855f7 50%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title {
    text-align: center;
    margin-bottom: 24px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 60px;
}

/* ===========================================
   BUTTONS
   =========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 32px;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #7c3aed 100%);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-glow {
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-glow:hover {
    box-shadow: 0 8px 40px var(--accent-glow-strong);
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.125rem;
}

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ===========================================
   HERO SECTION
   =========================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--section-padding) 0;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.5;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

/* Hero Visual / Mockups */
.hero-visual {
    position: relative;
}

.mockup-container {
    position: relative;
    display: flex;
    gap: 20px;
    transform: perspective(1000px) rotateY(-5deg);
}

.mockup-phone {
    width: 280px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    padding: 12px;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.05),
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 40px var(--accent-glow);
    animation: float 6s ease-in-out infinite;
}

.phone-screen {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
    font-weight: 500;
}

.chat-avatar {
    font-size: 1.5rem;
}

.status-online {
    margin-left: auto;
    color: var(--success);
    font-size: 0.75rem;
}

.chat-messages {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    max-width: 85%;
    line-height: 1.4;
}

.message-bot {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    align-self: flex-start;
    border: 1px solid var(--border);
}

.message-user {
    background: var(--accent);
    color: white;
    align-self: flex-end;
}

.mockup-dashboard {
    width: 320px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 20px;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.05),
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 40px rgba(168, 85, 247, 0.2);
    animation: float 6s ease-in-out infinite 0.5s;
    align-self: flex-start;
    margin-top: 40px;
}

.dashboard-header {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.dashboard-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dashboard-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 80px;
    padding-top: 10px;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(180deg, var(--accent) 0%, rgba(99, 102, 241, 0.3) 100%);
    border-radius: 4px 4px 0 0;
    transition: height var(--transition-base);
}

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

/* ===========================================
   TRUST BATTERY
   =========================================== */

.trust-battery {
    padding: 40px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.trust-battery .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.trust-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trust-logos {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    justify-content: center;
}

.trust-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    transition: color var(--transition-base);
}

.trust-logo:hover {
    color: var(--text-primary);
}

.trust-logo span {
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===========================================
   PROBLEM SECTION
   =========================================== */

.problem-section {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 60px 0 40px;
}

.problem-card {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.problem-card:hover {
    border-color: var(--error);
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.1);
}

.problem-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.problem-card p {
    font-size: 1rem;
    line-height: 1.6;
}

.problem-cta {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 40px;
}

/* ===========================================
   SOLUTION / FEATURE GRID
   =========================================== */

.solution-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.feature-card {
    position: relative;
    padding: 32px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 40px var(--accent-glow);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
    border-radius: var(--radius-md);
    color: var(--accent);
}

.feature-title {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 1rem;
    margin-bottom: 24px;
    color: var(--text-secondary);
}

.feature-highlight {
    padding: 12px 16px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
}

.feature-highlight span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ===========================================
   PROCESS SECTION
   =========================================== */

.process-section {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
}

.process-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    margin-top: 60px;
}

.process-step {
    flex: 1;
    max-width: 300px;
    text-align: center;
    padding: 0 20px;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--accent) 0%, #7c3aed 100%);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 0 30px var(--accent-glow);
}

.step-content h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 1rem;
    color: var(--text-secondary);
}

.process-connector {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), rgba(99, 102, 241, 0.3));
    margin-top: 32px;
    flex-shrink: 0;
}

/* ===========================================
   CTA SECTION
   =========================================== */

.cta-section {
    position: relative;
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
    text-align: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    bottom: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.4;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-text {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-microcopy {
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===========================================
   FOOTER
   =========================================== */

.footer {
    padding: 40px 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===========================================
   ANIMATIONS
   =========================================== */

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* ===========================================
   RESPONSIVE
   =========================================== */

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-visual {
        display: none;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
    
    .process-connector {
        width: 2px;
        height: 40px;
        margin: 0;
        background: linear-gradient(180deg, var(--accent), rgba(99, 102, 241, 0.3));
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .problem-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-logos {
        gap: 32px;
    }
    
    .btn-large {
        padding: 16px 32px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 60px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        width: 100%;
    }
}