/* ===================================
   AI Elite Flow - Main Stylesheet
   Purple-themed design with modern aesthetics
   =================================== */

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

:root {
    /* Purple Color Palette */
    --primary-purple: #7c3aed;
    --dark-purple: #5b21b6;
    --light-purple: #a78bfa;
    --purple-50: #faf5ff;
    --purple-100: #f3e8ff;
    --purple-200: #e9d5ff;
    --purple-300: #d8b4fe;
    --purple-400: #c084fc;
    --purple-500: #a855f7;
    --purple-600: #9333ea;
    --purple-700: #7e22ce;
    --purple-800: #6b21a8;
    --purple-900: #581c87;
    
    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-pink: #ec4899;
    --accent-indigo: #6366f1;
    --accent-violet: #8b5cf6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --black: #000000;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-purple: 0 10px 40px -10px rgba(124, 58, 237, 0.4);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 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);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--dark-purple) 100%);
    color: var(--white);
    box-shadow: var(--shadow-purple);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 50px -10px rgba(124, 58, 237, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--primary-purple);
    border: 2px solid var(--primary-purple);
}

.btn-outline:hover {
    background: var(--primary-purple);
    color: var(--white);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #1DA851;
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    text-decoration: none;
    color: var(--gray-900);
}

.logo i {
    font-size: 2rem;
    color: var(--primary-purple);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text strong {
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-text small {
    font-size: 0.75rem;
    color: var(--gray-500);
}

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

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-base);
}

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

.nav-link i {
    margin-right: 0.25rem;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    background: linear-gradient(135deg, var(--purple-50) 0%, var(--white) 50%, var(--purple-100) 100%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--purple-400), var(--accent-pink));
    top: -200px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-blue), var(--primary-purple));
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-violet));
    top: 50%;
    right: 10%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.9); }
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-purple);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-subtitle strong {
    color: var(--primary-purple);
    font-weight: 700;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.hero-features {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-700);
    font-weight: 500;
}

.hero-feature-item i {
    color: var(--primary-purple);
    font-size: 1.25rem;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.hero-scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--white);
    color: var(--primary-purple);
    box-shadow: var(--shadow-md);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--purple-100);
    color: var(--primary-purple);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
}

/* Features Section */
.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--white);
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.feature-icon.purple { background: var(--purple-100); color: var(--primary-purple); }
.feature-icon.blue { background: #dbeafe; color: var(--accent-blue); }
.feature-icon.pink { background: #fce7f3; color: var(--accent-pink); }
.feature-icon.indigo { background: #e0e7ff; color: var(--accent-indigo); }
.feature-icon.violet { background: #ede9fe; color: var(--accent-violet); }
.feature-icon.purple-light { background: var(--purple-200); color: var(--purple-700); }

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* Notice Section */
.notice-section {
    background: linear-gradient(135deg, var(--purple-600) 0%, var(--dark-purple) 100%);
    padding: var(--spacing-xl) 0;
}

.notice-box {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
}

.notice-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    color: var(--white);
}

.notice-content h3 {
    color: var(--white);
    margin-bottom: 0.75rem;
}

.notice-content p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

/* Pricing Section */
.pricing {
    background: var(--gray-50);
}

.pricing-card-wrapper {
    max-width: 500px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: 3rem;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-purple);
}

.pricing-badge {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-purple), var(--dark-purple));
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--gray-100);
}

.pricing-header h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price .currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-700);
}

.price .amount {
    font-size: 4rem;
    font-weight: 800;
    font-family: var(--font-display);
    color: var(--primary-purple);
}

.price .period {
    font-size: 1.25rem;
    color: var(--gray-500);
}

.price-description {
    margin-top: 0.5rem;
    color: var(--gray-600);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: var(--gray-700);
}

.pricing-features li i {
    color: var(--primary-purple);
    font-size: 1.125rem;
}

.pricing-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--gray-100);
}

.pricing-footer small {
    color: var(--gray-500);
}

/* How It Works Section */
.how-it-works {
    background: var(--white);
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.step-card {
    position: relative;
    flex: 1;
    max-width: 320px;
    padding: 2.5rem 2rem;
    background: var(--white);
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.step-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-xl);
}

.step-number {
    position: absolute;
    top: -1.25rem;
    left: 50%;
    transform: translateX(-50%);
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-purple), var(--dark-purple));
    color: var(--white);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.125rem;
    box-shadow: var(--shadow-md);
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--purple-100);
    border-radius: var(--radius-lg);
    font-size: 2.5rem;
    color: var(--primary-purple);
}

.step-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.step-card p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.step-detail {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--purple-50);
    border-radius: var(--radius-full);
    color: var(--primary-purple);
    font-size: 0.875rem;
    font-weight: 600;
}

.step-arrow {
    flex-shrink: 0;
    font-size: 2rem;
    color: var(--gray-300);
}

.whatsapp-cta {
    margin-top: 4rem;
}

.whatsapp-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-radius: var(--radius-xl);
    border: 2px solid #81C784;
}

.whatsapp-box > i {
    font-size: 3rem;
    color: #25D366;
}

.whatsapp-box strong {
    display: block;
    font-size: 1.25rem;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.whatsapp-box p {
    color: var(--gray-600);
    margin: 0;
}

/* Subscribe Section */
.subscribe {
    background: linear-gradient(135deg, var(--purple-50) 0%, var(--white) 100%);
}

.subscribe-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.subscribe-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subscribe-content > p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.subscribe-benefits {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-700);
    font-weight: 500;
}

.benefit-item i {
    color: var(--primary-purple);
    font-size: 1.25rem;
}

.payment-section {
    padding: 2rem;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
}

.payment-amount {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--gray-200);
}

.payment-amount .label {
    color: var(--gray-600);
    font-weight: 600;
}

.payment-amount .amount {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-display);
    color: var(--primary-purple);
}

.payment-note {
    text-align: center;
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-top: 1rem;
}

.payment-note i {
    color: var(--primary-purple);
}

.subscribe-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-circle {
    position: absolute;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--purple-400), var(--accent-pink));
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.visual-content {
    position: relative;
    text-align: center;
    z-index: 1;
}

.visual-content i {
    font-size: 6rem;
    color: var(--primary-purple);
    margin-bottom: 1rem;
}

.visual-content h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.visual-content p {
    color: var(--gray-600);
    font-weight: 600;
}

/* FAQ Section */
.faq {
    background: var(--white);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--primary-purple);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: transparent;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    cursor: pointer;
    transition: all var(--transition-base);
}

.faq-question:hover {
    color: var(--primary-purple);
}

.faq-question i {
    color: var(--primary-purple);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-purple);
}

.footer-logo span {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.footer-logo strong {
    font-size: 1.25rem;
}

.footer-logo small {
    font-size: 0.75rem;
    color: var(--gray-400);
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.footer-domain {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    font-weight: 500;
}

.footer-domain i {
    color: var(--primary-purple);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    color: var(--gray-400);
    text-decoration: none;
    transition: all var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
    color: var(--gray-400);
}

.footer-bottom-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.footer-bottom-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-bottom-links a:hover {
    color: var(--white);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-purple);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

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

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .steps-container {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .subscribe-card {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-box {
        flex-direction: column;
        text-align: center;
    }
    
    .subscribe-visual {
        height: 300px;
    }
    
    .visual-content i {
        font-size: 4rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .price .amount {
        font-size: 3rem;
    }
    
    .subscribe-card {
        padding: 2rem 1.5rem;
    }
}