/* Fozbi Email Marketing - Main Stylesheet */

/* CSS Variables */
:root {
    --primary: #3b82f6;
    --primary-dark: #1e40af;
    --primary-light: #93c5fd;
    --secondary: #f59e0b;
    --secondary-dark: #d97706;
    --accent: #8b5cf6;
    --dark: #0f172a;
    --gray-900: #1e293b;
    --gray-800: #334155;
    --gray-700: #475569;
    --gray-600: #64748b;
    --gray-500: #94a3b8;
    --gray-400: #cbd5e1;
    --gray-300: #e2e8f0;
    --gray-200: #f1f5f9;
    --gray-100: #f8fafc;
    --white: #ffffff;
    --success: #10b981;
    --error: #ef4444;
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px 0 rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-white {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

/* 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 0.3s ease;
}

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

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 50px;
    width: auto;
}

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

.logo-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--gray-600);
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    transition: color 0.2s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    margin: 6px 0;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.05;
    border-radius: 0 0 0 50%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50px;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 24px;
}

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

.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 48px;
    border-top: 1px solid var(--gray-300);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--dark);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
}

.hero-visual {
    position: relative;
    z-index: 2;
}

.mascot-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mascot-img {
    max-width: 450px;
    width: 100%;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.mascot-bubble {
    position: absolute;
    background: var(--white);
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    animation: bubble 4s ease-in-out infinite;
}

.mascot-bubble.bubble-1 {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.mascot-bubble.bubble-2 {
    bottom: 20%;
    left: -30px;
    animation-delay: 2s;
}

@keyframes bubble {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.02); }
}

/* Section Styling */
.section {
    padding: 100px 0;
}

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

.section-dark h2, .section-dark h3 {
    color: var(--white);
}

.section-gray {
    background: var(--gray-100);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-600);
}

.section-dark .section-header p {
    color: var(--gray-400);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.feature-title {
    margin-bottom: 12px;
}

.feature-description {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* How It Works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.step-card {
    text-align: center;
    position: relative;
}

.step-card::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -15px;
    width: 30px;
    height: 2px;
    background: var(--gray-400);
}

.step-card:last-child::after {
    display: none;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    color: var(--white);
    margin: 0 auto 24px;
}

.step-title {
    margin-bottom: 12px;
}

.step-description {
    color: var(--gray-600);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: stretch;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow);
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card.featured {
    background: var(--dark);
    color: var(--white);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured h3,
.pricing-card.featured h4 {
    color: var(--white);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-warm);
    color: var(--white);
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.pricing-header {
    text-align: center;
    padding-bottom: 24px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--gray-200);
}

.pricing-card.featured .pricing-header {
    border-color: var(--gray-700);
}

.pricing-name {
    margin-bottom: 8px;
}

.pricing-price {
    margin-bottom: 8px;
}

.pricing-price span {
    font-size: 48px;
    font-weight: 800;
}

.pricing-period {
    color: var(--gray-500);
    font-size: 14px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

.pricing-card .btn {
    width: 100%;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-stars {
    color: var(--secondary);
    font-size: 20px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 18px;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 18px;
}

.testimonial-info h5 {
    color: var(--white);
    margin-bottom: 4px;
}

.testimonial-info span {
    color: var(--gray-400);
    font-size: 14px;
}

/* CTA Section */
.cta-section {
    background: var(--gradient-primary);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 20px;
    margin-bottom: 32px;
}

.cta-mascot {
    position: absolute;
    right: 10%;
    bottom: 0;
    width: 200px;
    opacity: 0.3;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 50px;
}

.footer-logo-text {
    color: var(--white);
    font-size: 24px;
    font-weight: 800;
}

.footer-description {
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

.footer-column h4 {
    color: var(--white);
    margin-bottom: 24px;
    font-size: 16px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-400);
    transition: color 0.2s ease;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: var(--gray-500);
    font-size: 14px;
}

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

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 999;
    padding: 100px 24px 40px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu .nav-links {
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.mobile-menu .nav-link {
    font-size: 24px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .features-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .step-card::after {
        display: none;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

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

@media (max-width: 768px) {
    .nav-links,
    .nav-actions .btn-secondary {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .mascot-img {
        max-width: 300px;
    }

    .mascot-bubble {
        display: none;
    }

    .features-grid,
    .steps-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section {
        padding: 60px 0;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
}