/* CSS Variables */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --background: #ffffff;
    --background-alt: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s ease;
}

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

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(--text-primary);
    background-color: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

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

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

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

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

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
    position: relative;
    overflow: hidden;
}

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

.hero-content h1 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-shape {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: morph 8s ease-in-out infinite;
    opacity: 0.8;
}

@keyframes morph {
    0%, 100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
    50% {
        border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
    }
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--background);
}

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

.about-text h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-features {
    list-style: none;
    display: grid;
    gap: 10px;
}

.about-features li {
    font-weight: 500;
    color: var(--text-primary);
}

.about-image {
    display: grid;
    gap: 20px;
}

.about-card {
    background: var(--background-alt);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.about-card h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.about-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Categories Section */
.categories {
    padding: 100px 0;
    background: var(--background-alt);
}

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

.category-card {
    background: var(--background);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.category-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.category-card h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.category-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 15px;
}

.deal-count {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Deals Section */
.deals {
    padding: 100px 0;
    background: var(--background);
}

.deals-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--border-color);
    background: var(--background);
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

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

.deal-card {
    background: var(--background);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.deal-image {
    height: 200px;
    background: linear-gradient(135deg, #e0e7ff, #f0f9ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
}

.deal-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--danger-color);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.deal-badge.new {
    background: var(--success-color);
}

.deal-badge.hot {
    background: var(--secondary-color);
}

.deal-content {
    padding: 25px;
}

.deal-brand {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.deal-content h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.deal-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 15px;
}

.deal-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

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

.price-original {
    font-size: 1rem;
    color: var(--text-secondary);
    text-decoration: line-through;
}

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

.deal-btn {
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.deal-btn:hover {
    background: var(--primary-dark);
}

.deal-expires {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.deals-cta {
    text-align: center;
    margin-top: 50px;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.how-it-works .section-header h2,
.how-it-works .section-header p {
    color: white;
}

.how-it-works .section-header p {
    opacity: 0.9;
}

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

.step {
    text-align: center;
    padding: 30px 20px;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.step-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    margin-top: 20px;
}

.step h3 {
    margin-bottom: 15px;
    font-size: 1.125rem;
}

.step p {
    opacity: 0.9;
    font-size: 0.875rem;
    line-height: 1.7;
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--background-alt);
}

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

.testimonial-card {
    background: var(--background);
    padding: 35px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.testimonial-text {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 25px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.author-info strong {
    display: block;
    color: var(--text-primary);
}

.author-info span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Newsletter Section */
.newsletter {
    padding: 80px 0;
    background: linear-gradient(135deg, #1f2937, #374151);
    color: white;
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-content h2 {
    margin-bottom: 15px;
}

.newsletter-content p {
    opacity: 0.9;
    margin-bottom: 30px;
}

.newsletter-form {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.newsletter-form .btn {
    white-space: nowrap;
}

.newsletter-note {
    font-size: 0.875rem;
    opacity: 0.7;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--background);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h4 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--background-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--text-primary);
    transition: var(--transition);
}

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

.contact-form {
    display: grid;
    gap: 20px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form .btn {
    justify-self: start;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 15px;
    opacity: 0.7;
    font-size: 0.875rem;
    line-height: 1.8;
}

.footer-links h4 {
    margin-bottom: 20px;
    font-size: 1rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    opacity: 0.7;
    transition: var(--transition);
    font-size: 0.875rem;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer-bottom p {
    margin-bottom: 10px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-image {
        order: -1;
    }

    .hero-shape {
        width: 300px;
        height: 300px;
    }

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

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

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

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        transform: translateY(-150%);
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }

    .stat {
        flex: 1;
        min-width: 100px;
    }

    .categories-grid,
    .deals-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

    .newsletter-form {
        flex-direction: column;
    }

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

    .contact-info {
        align-items: center;
    }

    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero-shape {
        width: 250px;
        height: 250px;
    }
}

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

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Toast Notification System */
.toast-notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--text-primary);
    color: white;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10000;
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    max-width: 400px;
}

.toast-notification.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-notification.toast-success {
    background: var(--success-color);
}

.toast-notification.toast-info {
    background: var(--primary-color);
}

.toast-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.toast-message {
    font-size: 0.9375rem;
    line-height: 1.5;
}

@media (max-width: 480px) {
    .toast-notification {
        left: 20px;
        right: 20px;
        bottom: 20px;
        max-width: none;
    }
}