/* ============================================
   DESIGN SYSTEM - Enterprise Minimalist
   Dark Mode Premium + Orange Accents
   ============================================ */

:root {
    /* Colors */
    --bg-primary: #050505;
    --bg-secondary: #101010;
    --bg-tertiary: #1A1A1A;

    --color-orange: #FF6B35;
    --color-orange-dark: #E55A24;
    --color-orange-light: #FF8A5B;

    --text-primary: #FFFFFF;
    --text-secondary: #B8B8B8;
    --text-tertiary: #7A7A7A;

    --border-color: #232323;

    /* Glow */
    --glow-orange: rgba(255, 107, 53, 0.18);

    /* Buttons */
    --button-gray: #1F1F1F;
    --button-gray-hover: #2A2A2A;

    
    /* Typography */
    --font-display: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows & Glow */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
    --glow-orange-box: 0 0 20px rgba(255, 107, 53, 0.2);
    --glow-orange-box-hover: 0 0 30px rgba(255, 107, 53, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.23, 1, 0.32, 1);
    --transition-base: 200ms cubic-bezier(0.23, 1, 0.32, 1);
    --transition-slow: 300ms cubic-bezier(0.23, 1, 0.32, 1);
}

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

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

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

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   NAVBAR
   ============================================ */

/* ============================================
   PREMIUM NAVBAR
   ============================================ */

.navbar{
    position:fixed;
    top:10px;
    left:50%;
    transform:translateX(-50%);
    

    width:95%;
    max-width:1280px;

    z-index:9999;

    background:rgba(10,10,10,0.72);

    backdrop-filter:blur(18px);

    border:1px solid rgba(255,255,255,0.05);

    border-radius:18px;

    box-shadow:
        0 8px 30px rgba(0,0,0,0.35);

    transition:all 0.3s ease;
}

/* efeito quando scrollar */
.navbar.scrolled{
    background:rgba(5,5,5,0.88);

    border-color:rgba(255,107,53,0.15);

    box-shadow:
        0 10px 35px rgba(0,0,0,0.45),
        0 0 25px rgba(255,107,53,0.08);
}

.navbar-container{
    display:flex;
    align-items:center;
    justify-content:space-between;

    padding:1rem 1.8rem;
}

/* ============================================
   LOGO
   ============================================ */

.navbar-logo{
    display:flex;
    align-items:center;
    gap:0.7rem;

    font-size:1.3rem;
    font-weight:700;

    color:white;

    text-decoration:none;

    letter-spacing:-0.5px;
}

.navbar-logo span{
    color:var(--color-orange);
}

/* ============================================
   NAV LINKS
   ============================================ */

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

.nav-link{
    position:relative;

    color:var(--text-secondary);

    text-decoration:none;

    font-size:0.95rem;
    font-weight:500;

    transition:all 0.25s ease;
}

.nav-link:hover{
    color:white;
}

/* linha animada */
.nav-link::after{
    content:'';

    position:absolute;

    left:0;
    bottom:-6px;

    width:0%;
    height:2px;

    background:var(--color-orange);

    border-radius:999px;

    transition:0.3s ease;
}

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

/* ============================================
   CTA BUTTON
   ============================================ */

.navbar-btn{
    background:rgba(255,107,53,0.08);

    border:1px solid rgba(255,107,53,0.25);

    color:var(--color-orange);

    padding:0.8rem 1.2rem;

    border-radius:12px;

    font-size:0.9rem;
    font-weight:600;

    transition:0.3s ease;
}

.navbar-btn:hover{
    background:var(--color-orange);

    color:white;

    box-shadow:
        0 0 20px rgba(255,107,53,0.25);
}

/* ============================================
   MOBILE
   ============================================ */

@media(max-width:768px){

    .navbar{
        width:92%;
        top:12px;
    }

    .navbar-container{
        flex-direction:column;
        gap:1rem;
    }

    .navbar-nav{
        flex-wrap:wrap;
        justify-content:center;
        gap:1rem;
    }

    .navbar-btn{
        width:100%;
        text-align:center;
    }
}

.btn-back {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.btn-back:hover {
    border-color: var(--color-orange);
    color: var(--color-orange);
    background: rgba(255, 107, 53, 0.05);
}

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

.btn-primary {
    background: var(--color-orange);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--glow-orange-box);
}

.btn-primary:hover {
    background: var(--color-orange-dark);
    box-shadow: var(--glow-orange-box-hover);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--color-orange);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    background: rgba(255, 107, 53, 0.1);
    box-shadow: var(--glow-orange-box);
}

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

.hero {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, transparent 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    margin-top:70px;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid var(--color-orange);
    color: var(--color-orange);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
}

.hero-badges-tech {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.tech-badge {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    cursor: pointer;
}

.tech-badge:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.05);
    color: var(--color-orange);
    box-shadow: var(--glow-orange-box);
}

/* ============================================
   SECTION TITLES
   ============================================ */

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    padding-bottom: var(--spacing-lg);
}

.section-title::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--color-orange);
    border-radius: var(--radius-sm);
}

/* ============================================
   OVERVIEW SECTION
   ============================================ */

.overview {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 107, 53, 0.02) 100%);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.overview-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.overview-block:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.02);
    box-shadow: var(--glow-orange-box);
}

.overview-block h3 {
    color: var(--color-orange);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.overview-block p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   ARCHITECTURE SECTION
   ============================================ */

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

.architecture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.arch-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
}

.arch-card:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.02);
    transform: translateY(-4px);
    box-shadow: var(--glow-orange-box-hover);
}

.arch-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.arch-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.arch-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   GALLERY SECTION
   ============================================ */

.gallery {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, rgba(255, 107, 53, 0.02) 0%, transparent 100%);
}

.gallery-featured {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--glow-orange-box-hover);
    border: 1px solid var(--border-color);
}

.gallery-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.gallery-featured:hover .gallery-image {
    transform: scale(1.05);
}

.gallery-caption {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   SECURITY SECTION
   ============================================ */

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

.security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.security-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.security-card:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.02);
    box-shadow: var(--glow-orange-box);
}

.security-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.security-card h3 {
    color: var(--color-orange);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

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

/* ============================================
   IMPACT SECTION
   ============================================ */

.impact {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, transparent 100%);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.impact-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-2xl) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.impact-item:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.02);
    box-shadow: var(--glow-orange-box);
}

.impact-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-orange);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-display);
}

.impact-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   DIFERENCIAIS SECTION
   ============================================ */

.differentials {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, rgba(255, 107, 53, 0.02) 0%, transparent 100%);
}

.differentials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.differential-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
}

.differential-card:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.02);
    transform: translateY(-4px);
    box-shadow: var(--glow-orange-box-hover);
}

.differential-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.differential-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.differential-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   STACK SECTION
   ============================================ */

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

.stack-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.stack-badge {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-base);
    cursor: pointer;
}

.stack-badge:hover {
    border-color: var(--color-orange);
    background: rgba(255, 107, 53, 0.05);
    color: var(--color-orange);
    box-shadow: var(--glow-orange-box);
}

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

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

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

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
}

.footer-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--color-orange);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

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

@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .hero-badges-tech {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

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

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

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

    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-links {
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .navbar-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .navbar-nav {
        gap: var(--spacing-md);
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-cta {
        flex-direction: column;
    }

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

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

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

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

    .stack-badges {
        justify-content: flex-start;
    }

    .gallery-image {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

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

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

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

    .stack-badges {
        flex-direction: column;
    }

    .stack-badge {
        width: 100%;
        text-align: center;
    }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255, 107, 53, 0.2);
    }
    50% {
        box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Stagger animation for multiple elements */
.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }
.fade-in:nth-child(5) { animation-delay: 0.5s; }
.fade-in:nth-child(6) { animation-delay: 0.6s; }