/* ============================================
   CodePexa Landing Page - Styles
   Professional & Modern Design
   ============================================ */

/* ============================================
   CSS Variables (Design Tokens)
   ============================================ */
:root {
    /* Colors */
    --color-primary: #6366F1;
    --color-primary-dark: #4F46E5;
    --color-primary-light: #818CF8;
    --color-secondary: #8B5CF6;
    --color-accent: #22D3EE;
    --color-accent-green: #10B981;
    --color-accent-orange: #F59E0B;
    --color-accent-pink: #EC4899;
    
    /* Background Colors */
    --bg-dark: #0F172A;
    --bg-dark-secondary: #1E293B;
    --bg-dark-tertiary: #334155;
    --bg-card: rgba(30, 41, 59, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    /* Text Colors */
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    --gradient-hero: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    --shadow-glow-accent: 0 0 40px rgba(34, 211, 238, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-Index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
}

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

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-4xl) 0;
}

/* ============================================
   Typography Utilities
   ============================================ */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Button Styles
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(99, 102, 241, 0.4);
}

.btn--outline {
    background: transparent;
    border-color: var(--color-primary);
    color: var(--text-primary);
}

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

.btn--white {
    background: white;
    color: var(--bg-dark);
}

.btn--white:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
}

.btn--ghost {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: rgba(255, 255, 255, 0.2);
}

.btn--ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
}

.btn--block {
    width: 100%;
}

/* ============================================
   Header / Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: transparent;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
}

.nav__logo-img {
    height: 2.5rem;
    width: auto;
}

.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav__toggle,
.nav__close {
    display: none;
    color: var(--text-primary);
    cursor: pointer;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-dark-secondary);
        flex-direction: column;
        padding: var(--space-4xl) var(--space-xl);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }
    
    .nav__menu.show {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .nav__link {
        font-size: var(--font-size-lg);
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: var(--space-lg);
        right: var(--space-lg);
    }
    
    .nav__toggle {
        display: block;
    }
    
    .nav__actions .btn {
        display: none;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero__gradient {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero__shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

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

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

.shape--3 {
    width: 200px;
    height: 200px;
    background: var(--color-accent);
    top: 50%;
    left: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero__container {
    position: relative;
    z-index: 1;
}

.hero__content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero__badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.hero__title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero__description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

@media (max-width: 640px) {
    .hero__stats {
        gap: var(--space-xl);
    }
    
    .stat__number {
        font-size: var(--font-size-2xl);
    }
}

/* ============================================
   Section Header
   ============================================ */
.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section__tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section__title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section__description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* ============================================
   Products Section
   ============================================ */
.products {
    background: var(--bg-dark-secondary);
}

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

.product-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
}

.product-card__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.product-card__icon--purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-secondary);
}

.product-card__icon--cyan {
    background: rgba(34, 211, 238, 0.1);
    color: var(--color-accent);
}

.product-card__icon--green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-green);
}

.product-card__icon--orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-accent-orange);
}

.product-card__icon--pink {
    background: rgba(236, 72, 153, 0.1);
    color: var(--color-accent-pink);
}

.product-card__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.product-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.product-card__features li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding-left: var(--space-md);
    position: relative;
}

.product-card__features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing__grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-lg);
    align-items: stretch;
}

.pricing-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    flex: 1 1 300px;
    max-width: 350px;
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
}

.pricing-card--featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.375rem 1rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card__header {
    margin-bottom: var(--space-lg);
}

.pricing-card__name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.pricing-card__description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pricing-card__price {
    display: flex;
    align-items: baseline;
    margin-bottom: var(--space-sm);
}

.pricing-card__currency {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-secondary);
}

.pricing-card__amount {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1;
}

.pricing-card__period {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-left: var(--space-xs);
}

.pricing-card__dte {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.pricing-card__dte-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary-light);
}

.pricing-card__dte-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pricing-card__features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.pricing-card__feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pricing-card__feature svg {
    color: var(--color-accent-green);
    flex-shrink: 0;
}

.pricing-card__feature--header {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.pricing-card__feature--header:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.pricing__note {
    text-align: center;
    margin-top: var(--space-2xl);
    color: var(--text-secondary);
}

.pricing__note a {
    color: var(--color-primary-light);
    font-weight: 500;
}

.pricing__note a:hover {
    text-decoration: underline;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background: var(--bg-dark-secondary);
}

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

.feature-card {
    text-align: center;
    padding: var(--space-xl);
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(34, 211, 238, 0.3);
    box-shadow: var(--shadow-glow-accent);
}

.feature-card__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-radius: var(--radius-lg);
    color: var(--color-accent);
    margin: 0 auto var(--space-lg);
}

.feature-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-card__description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
    padding: var(--space-3xl) 0;
}

.cta__content {
    position: relative;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl);
    text-align: center;
    overflow: hidden;
}

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

.cta__gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    filter: blur(60px);
}

.cta__title {
    position: relative;
    z-index: 1;
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta__description {
    position: relative;
    z-index: 1;
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--space-2xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta__buttons {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

@media (max-width: 640px) {
    .cta__content {
        padding: var(--space-2xl);
    }
}

/* ============================================
   Contact Section
   ============================================ */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

@media (max-width: 900px) {
    .contact__grid {
        grid-template-columns: 1fr;
    }
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(5px);
}

.contact-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-card__icon--whatsapp {
    background: rgba(37, 211, 102, 0.1);
    color: #25D366;
}

.contact-card__icon--erp {
    background: rgba(34, 211, 238, 0.1);
    color: var(--color-accent);
}

.contact-card__icon--location {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-accent-orange);
}

.contact-card__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.contact-card__link {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.contact-card__link:hover {
    color: var(--color-primary-light);
}

.contact-card__text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Contact Form */
.contact__form {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

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

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-dark-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

@media (max-width: 900px) {
    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .footer__grid {
        grid-template-columns: 1fr;
    }
}

.footer__logo-img {
    height: 2.5rem;
    width: auto;
    margin-bottom: var(--space-lg);
}

.footer__description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.footer__social {
    display: flex;
    gap: var(--space-md);
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.footer__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__list a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer__list a:hover {
    color: var(--text-primary);
}

.footer__bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.whatsapp-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    border-radius: 50%;
    color: white;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
    animation: pulse 2s infinite;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1);
    }
}

/* ============================================
   Animations
   ============================================ */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Delay classes */
[data-aos-delay="100"] { transition-delay: 100ms; }
[data-aos-delay="200"] { transition-delay: 200ms; }
[data-aos-delay="300"] { transition-delay: 300ms; }
[data-aos-delay="400"] { transition-delay: 400ms; }
[data-aos-delay="500"] { transition-delay: 500ms; }

/* ============================================
   Media Queries
   ============================================ */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-md);
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-3xl) 0;
    }
}

@media (max-width: 640px) {
    .hero__buttons {
        flex-direction: column;
    }
    
    .hero__buttons .btn {
        width: 100%;
    }
}