/* ==========================================
   MODERN MATHAPEX LANDING PAGE STYLES
   Mobile-First Responsive Design
   ========================================== */

:root {
    /* Modern Color Palette */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #f093fb;
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #ef4444;
    
    /* Neutral Colors */
    --dark: #1a202c;
    --gray-900: #1f2937;
    --gray-800: #374151;
    --gray-700: #4b5563;
    --gray-600: #6b7280;
    --gray-500: #9ca3af;
    --gray-400: #d1d5db;
    --gray-300: #e5e7eb;
    --gray-200: #f3f4f6;
    --gray-100: #f9fafb;
    --white: #ffffff;
    
    /* Modern Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4ade80 0%, #3b82f6 100%);
    --gradient-warm: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    
    /* Modern Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   BASE STYLES
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 2rem;
    }
}

/* ==========================================
   NAVIGATION - Modern Glassmorphism
   ========================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

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

.logo-img {
    height: 36px;
    width: auto;
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

@media (max-width: 767px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

/* ==========================================
   HERO SECTION - Modern Gradient
   ========================================== */

.hero {
    position: relative;
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    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");
    opacity: 0.4;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
}

.hero-text {
    text-align: center;
    position: relative;
    z-index: 10;
}

@media (min-width: 1024px) {
    .hero-text {
        text-align: left;
    }
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--white);
    letter-spacing: -0.02em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3), 0 4px 40px rgba(0, 0, 0, 0.2);
}

@media (min-width: 640px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 4rem;
    }
}

.hero-title .highlight {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

@media (min-width: 1024px) {
    .hero-subtitle {
        margin-left: 0;
        font-size: 1.25rem;
    }
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
    align-items: center;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

@media (min-width: 1024px) {
    .hero-buttons {
        justify-content: flex-start;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    min-width: 200px;
}

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

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

@media (min-width: 1024px) {
    .hero-stats {
        margin: 0;
    }
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

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

.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 350px;
    animation: float 6s ease-in-out infinite;
}

@media (min-width: 640px) {
    .phone-mockup {
        max-width: 400px;
    }
}

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

.phone-frame {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-screenshot {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.hero-pattern {
    display: none;
}

/* ==========================================
   SECTIONS - Modern Cards
   ========================================== */

section {
    padding: 4rem 0;
}

@media (min-width: 768px) {
    section {
        padding: 5rem 0;
    }
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--gray-900);
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

.section-subtitle {
    text-align: center;
    color: var(--gray-600);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Features Section */
.features {
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.75;
}

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

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.step-number {
    width: 4rem;
    height: 4rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin: 0 auto 1.5rem;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.step-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

.step-description {
    color: var(--gray-600);
    line-height: 1.75;
}

/* Rewards Section */
.rewards {
    background: var(--gray-50);
    color: var(--gray-900);
    padding: 5rem 0;
}

.rewards .section-title {
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.rewards .section-subtitle {
    color: var(--gray-600);
    margin-bottom: 3rem;
}

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

@media (min-width: 640px) {
    .rewards-chest-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .rewards-chest-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.chest-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

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

.chest-top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: var(--transition);
}

.bronze-chest .chest-top-bar {
    background: #cd7f32;
}

.silver-chest .chest-top-bar {
    background: #c0c0c0;
}

.gold-chest .chest-top-bar {
    background: #fbbf24;
}

.diamond-chest .chest-top-bar {
    background: #3b82f6;
}

.chest-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: block;
}

.chest-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.chest-description {
    color: var(--gray-600);
    line-height: 1.75;
    font-size: 0.9375rem;
}

.custom-rewards-banner {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    padding: 2.5rem 3rem;
    border-radius: var(--radius-xl);
    text-align: center;
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.custom-rewards-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
}

.custom-rewards-text {
    font-size: 1.125rem;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.95);
    max-width: 800px;
    margin: 0 auto;
}

/* Grades Section */
.grades {
    background: var(--gray-50);
}

.grades-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .grades-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grades-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.grade-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    transition: var(--transition);
}

.grade-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.grade-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.grade-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.grade-description {
    color: var(--gray-600);
    font-size: 0.9375rem;
}

/* Testimonials Section */
.testimonials {
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background: var(--gray-50);
    padding: 2rem;
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.testimonial-card:hover {
    background: var(--gray-100);
    transform: translateY(-4px);
}

.stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--gray-700);
    line-height: 1.75;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-name {
    font-weight: 700;
    color: var(--gray-900);
}

.author-role {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Download Section */
.download {
    background: var(--gradient-primary);
    color: var(--white);
}

.download-content {
    text-align: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--white);
}

@media (min-width: 768px) {
    .download-title {
        font-size: 3rem;
    }
}

.download-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    margin-bottom: 3rem;
}

@media (min-width: 640px) {
    .download-buttons {
        flex-direction: row;
    }
}

.store-button {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: var(--white);
    color: var(--gray-900);
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
}

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

.store-icon {
    width: 32px;
    height: 32px;
}

.store-text {
    text-align: left;
}

.store-label {
    font-size: 0.75rem;
    color: var(--gray-600);
}

.store-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

.download-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.check-icon {
    width: 20px;
    height: 20px;
    color: var(--success);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 3rem 0 2rem;
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-section {
    text-align: center;
}

@media (min-width: 768px) {
    .footer-section {
        text-align: left;
    }
}

.footer-logo {
    height: 36px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-description {
    color: var(--gray-500);
    line-height: 1.75;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

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

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

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

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

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

@media (min-width: 768px) {
    .social-links {
        justify-content: flex-start;
    }
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

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

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-500);
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

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

/* ==========================================
   RESPONSIVE UTILITIES
   ========================================== */

@media (max-width: 1023px) {
    .hero-content {
        text-align: center;
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        order: -1;
        margin-bottom: 2rem;
    }
    
    .hero-text {
        position: relative;
        z-index: 10;
    }
}

@media (max-width: 767px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        display: flex;
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-xl);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: all 0.3s ease;
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* ==========================================
   ANIMATIONS & INTERACTIONS
   ========================================== */

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

/* Smooth scroll offset for fixed navbar */
html {
    scroll-padding-top: 80px;
}