/* ============================================
   BYTEPLAY PLATFORM - INSTITUTIONAL DESIGN
   Dark Premium / Architectural Minimalism
   ============================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Dark Premium Palette */
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #1a1a1a;
    --color-bg-elevated: #222222;
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-tertiary: #707070;
    
    --color-accent-primary: #3b82f6;
    --color-accent-secondary: #60a5fa;
    --color-accent-subtle: #1e40af;
    
    --color-border: #2a2a2a;
    --color-border-subtle: #1f1f1f;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

@media (max-width: 768px) {
    :root {
        --container-padding: 1.25rem;
        --spacing-3xl: 4rem;
        --spacing-2xl: 3rem;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
}

/* === CONTAINER === */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-subtle);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 1.5rem var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
}

.logo-separator {
    color: var(--color-text-tertiary);
    font-weight: 300;
}

.logo-subtitle {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

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

.nav-link {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
    font-weight: 500;
}

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

.nav-link-cta {
    color: var(--color-accent-primary);
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-accent-primary);
    border-radius: 4px;
    transition: all var(--transition-base);
}

.nav-link-cta:hover {
    background-color: var(--color-accent-primary);
    color: var(--color-text-primary);
}

/* Desktop: esconder hamburguer por padrão */
@media (min-width: 769px) {
    .hamburger {
        display: none !important;
    }
}

/* === MOBILE MENU HAMBURGUER === */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger-icon {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 24px;
}

.hamburger-icon span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all 0.3s ease;
}

.hamburger.active .hamburger-icon span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active .hamburger-icon span:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-icon span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
    }
    
    .nav-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 1rem var(--container-padding);
    }
    
    .nav-logo {
        flex-direction: row;
        gap: 0.5rem;
        align-items: center;
    }
    
    .logo-separator {
        display: none;
    }
    
    .logo-subtitle {
        display: none;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    /* Mostrar botão hamburguer em mobile */
    .hamburger {
        display: block !important;
        order: 2;
    }
    
    .nav-logo {
        order: 1;
    }
    
    /* Menu escondido por padrão */
    .nav-links {
        position: fixed;
        top: 58px;
        left: 0;
        right: 0;
        background-color: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 1.5rem var(--container-padding);
        border-top: 1px solid var(--color-border-subtle);
        border-bottom: 1px solid var(--color-border-subtle);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        order: 3;
        z-index: 999;
    }
    
    /* Menu aberto */
    .nav-links.active {
        max-height: 400px;
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 1rem;
        padding: 0.875rem 0;
        border-bottom: 1px solid var(--color-border-subtle);
        text-align: center;
        width: 100%;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-link-cta {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
        margin-top: 0.5rem;
        display: inline-block;
        width: auto;
    }
}

/* === SECTIONS === */
.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-dark {
    background-color: var(--color-bg-secondary);
}

.section-header {
    margin-bottom: var(--spacing-2xl);
    text-align: center;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-primary);
    display: block;
    margin-bottom: var(--spacing-sm);
}

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

/* === HERO SECTION === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 6rem;
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: 4rem;
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.hero-title-emphasis {
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-thesis {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, transparent 0%, var(--color-bg-secondary) 100%);
    pointer-events: none;
}

@media (max-width: 768px) {
    .hero {
        padding-top: 10rem;
        min-height: 100vh;
    }
    
    .hero-label {
        font-size: 0.65rem;
        margin-bottom: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
        margin-bottom: 1.5rem;
    }
    
    .hero-thesis {
        font-size: 0.9375rem;
        line-height: 1.6;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 0.75rem;
    }
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background-color: var(--color-accent-primary);
    color: var(--color-text-primary);
}

.btn-primary:hover {
    background-color: var(--color-accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

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

/* === PROBLEM SECTION === */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: var(--spacing-xl);
}

.problem-card {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
    transition: all var(--transition-base);
}

.problem-card:hover {
    border-color: var(--color-accent-subtle);
    transform: translateY(-4px);
}

.problem-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-accent-primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.problem-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

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

.section-conclusion {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background-color: var(--color-bg-tertiary);
    border-left: 3px solid var(--color-accent-primary);
    border-radius: 4px;
}

.conclusion-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

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

/* === APPROACH SECTION === */
.approach-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: var(--spacing-xl);
}

.comparison-column {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
}

.comparison-old {
    opacity: 0.7;
}

.comparison-new {
    border-color: var(--color-accent-subtle);
}

.comparison-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.comparison-icon {
    font-size: 1.5rem;
}

.comparison-header h3 {
    font-size: 1.25rem;
    color: var(--color-text-primary);
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.comparison-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
}

.comparison-new .comparison-list li::before {
    content: "✓";
}

.approach-statement {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
    border-radius: 8px;
}

.statement-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

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

/* === CAPABILITIES SECTION === */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.capability-card {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2.5rem;
    border-radius: 8px;
    transition: all var(--transition-base);
}

.capability-card:hover {
    border-color: var(--color-accent-subtle);
    transform: translateY(-4px);
}

.capability-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    color: var(--color-accent-primary);
}

.capability-title {
    font-size: 1.375rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.capability-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.capability-features {
    list-style: none;
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 1.5rem;
}

.capability-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
}

.capability-features li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
}

@media (max-width: 768px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
}

/* === METHODOLOGY SECTION === */
.methodology-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item::after {
    content: "";
    position: absolute;
    left: 30px;
    top: 60px;
    bottom: -30px;
    width: 1px;
    background: linear-gradient(180deg, var(--color-accent-subtle), transparent);
}

.timeline-item:last-child::after {
    display: none;
}

.timeline-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-bg-tertiary);
    border: 2px solid var(--color-accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-accent-primary);
    font-size: 1.125rem;
}

.timeline-content {
    flex: 1;
    padding-top: 0.5rem;
}

.timeline-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.timeline-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.timeline-deliverables {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.deliverable {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text-tertiary);
}

@media (max-width: 768px) {
    .timeline-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .timeline-item::after {
        display: none;
    }
}

/* === WHY NOW SECTION === */
.era-transition {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.era {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
}

.era-present {
    border-color: var(--color-accent-subtle);
}

.era-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 0.1em;
}

.era-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.era-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.era-arrow {
    font-size: 2rem;
    color: var(--color-accent-primary);
}

.why-now-statement {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
    border-radius: 8px;
    margin-bottom: var(--spacing-2xl);
}

.statement-large {
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

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

.why-now-factors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.factor {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
}

.factor-title {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

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

@media (max-width: 768px) {
    .era-transition {
        grid-template-columns: 1fr;
    }
    
    .era-arrow {
        transform: rotate(90deg);
        text-align: center;
    }
}

/* === AUDIENCE SECTION === */
.audience-intro {
    text-align: center;
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: var(--spacing-2xl);
}

.audience-card {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
    transition: all var(--transition-base);
}

.audience-card:hover {
    border-color: var(--color-accent-subtle);
    transform: translateY(-4px);
}

.audience-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.audience-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.audience-statement {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-bg-tertiary);
    border-left: 3px solid var(--color-accent-primary);
    border-radius: 4px;
}

/* === FOUNDATION SECTION === */
.foundation-intro {
    text-align: center;
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.foundation-pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.foundation-pillar {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
}

.pillar-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

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

/* === FINAL STATEMENT SECTION === */
.section-statement {
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    padding: var(--spacing-3xl) 0;
}

.final-statement {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.statement-title {
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1.3;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.statement-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.statement-closing {
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 768px) {
    .statement-title {
        font-size: 2rem;
    }
    
    .statement-subtitle {
        font-size: 1.125rem;
    }
}

/* === CONTACT SECTION === */
.section-contact {
    background-color: var(--color-bg-secondary);
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.contact-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: var(--spacing-2xl);
}

.contact-item {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 8px;
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
    margin-bottom: 0.75rem;
}

.contact-link {
    font-size: 1.25rem;
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-base);
    font-weight: 500;
}

.contact-link:hover {
    color: var(--color-accent-secondary);
}

.contact-note {
    padding: 1.5rem;
    background-color: var(--color-bg-tertiary);
    border-left: 3px solid var(--color-accent-subtle);
    border-radius: 4px;
}

.contact-note p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text-tertiary);
}

/* === FOOTER === */
.footer {
    background-color: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-subtle);
    padding: var(--spacing-xl) 0;
}

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

.footer-logo {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
}

.footer-legal {
    text-align: right;
}

.footer-company {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

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

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-legal {
        text-align: center;
    }
}

/* === UTILITIES === */
.text-center {
    text-align: center;
}

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

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

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

/* === SMOOTH SCROLLING === */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}