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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #4facfe;
    --success-color: #43e97b;
    --warning-color: #fa709a;
    
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    
    --border-color: #e2e8f0;
    --shadow-sm: 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);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Buttons - Cải thiện nhỏ gọn và tinh tế hơn */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 10px 20px; /* Giảm padding */
    font-size: 0.95rem; /* Giảm font size */
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: none;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md); /* Thêm border radius */
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md); /* Giảm shadow */
}

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

.btn-secondary {
    background: var(--secondary-gradient);
    color: white;
    border-color: transparent;
}

.btn-secondary:hover {
    transform: translateY(-2px);
}

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

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

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

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

.btn-large {
    padding: 14px 28px; /* Giảm padding cho button lớn */
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient); /* Giữ gradient cho logo */
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1.2rem;
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: logoShine 3s ease-in-out infinite;
}

@keyframes logoShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

.nav-logo h2 {
    background: var(--primary-gradient); /* Logo text với gradient */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

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

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

.nav-buttons {
    display: flex;
    gap: 1rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-gradient);
    top: -150px;
    right: -150px;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: var(--secondary-gradient);
    bottom: -100px;
    left: -100px;
    animation-delay: 2s;
}

.orb-3 {
    width: 150px;
    height: 150px;
    background: var(--accent-gradient);
    top: 50%;
    right: 10%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.hero-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s;
}

.hero-badge:hover::before {
    left: 100%;
}

.badge-icon {
    font-size: 1.2rem;
    animation: bounce 2s ease-in-out infinite;
}

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

.hero-title {
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%); /* Gradient đẹp cho title */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

.hero-description {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

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

.stat-item::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--primary-gradient);
    border-radius: 1px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

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

.hero-mockup {
    width: 100%;
    max-width: 500px;
    height: 400px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    padding: 20px;
}

.mockup-header {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.mockup-dots {
    display: flex;
    gap: 8px;
}

.mockup-dots span {
    width: 12px;
    height: 12px;
    background-color: var(--border-color);
    border-radius: 50%;
}

.mockup-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mockup-chart {
    height: 120px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.chart-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
}

.chart-dots {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.chart-dots span {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.mockup-data {
    display: flex;
    gap: 15px;
}

.data-item {
    flex: 1;
    height: 60px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
}

.data-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    transition: height 0.3s ease;
}

/* Thay thế floating-card thô bằng các icon sinh động */
.mockup-icons {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 10;
}

.mockup-icon {
    position: absolute;
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    animation: iconFloat 4s ease-in-out infinite;
    transition: all 0.3s ease;
}

.mockup-icon:hover {
    transform: scale(1.2) rotate(360deg);
    box-shadow: var(--shadow-xl);
}

.mockup-icon i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.mockup-icon.success {
    background: var(--success-gradient);
    border-color: var(--success-color);
}

.mockup-icon.success i {
    color: white;
}

.mockup-icon.warning {
    background: var(--warning-gradient);
    border-color: var(--warning-color);
}

.mockup-icon.warning i {
    color: white;
}

.mockup-icon.accent {
    background: var(--accent-gradient);
    border-color: var(--accent-color);
}

.mockup-icon.accent i {
    color: white;
}

/* Vị trí các icon */
.mockup-icon.icon-1 {
    top: -20px;
    right: -20px;
    animation-delay: 0s;
}

.mockup-icon.icon-2 {
    bottom: -20px;
    left: -20px;
    animation-delay: 1s;
}

.mockup-icon.icon-3 {
    top: 50%;
    right: -30px;
    animation-delay: 2s;
}

.mockup-icon.icon-4 {
    top: 20%;
    left: -30px;
    animation-delay: 3s;
}

.mockup-icon.icon-5 {
    bottom: 30%;
    right: -25px;
    animation-delay: 1.5s;
}

.mockup-icon.icon-6 {
    top: 80%;
    left: -25px;
    animation-delay: 2.5s;
}

@keyframes iconFloat {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        box-shadow: var(--shadow-lg);
    }
    50% { 
        transform: translateY(-15px) rotate(180deg); 
        box-shadow: var(--shadow-xl);
    }
}

@keyframes iconClick {
    0% { 
        transform: scale(1) rotate(0deg); 
    }
    50% { 
        transform: scale(0.8) rotate(180deg); 
    }
    100% { 
        transform: scale(1) rotate(360deg); 
    }
}

/* Thêm các icon nhỏ xung quanh mockup */
.mockup-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 5;
}

.decoration-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: dotPulse 2s ease-in-out infinite;
}

.decoration-dot:nth-child(1) {
    top: 10%;
    left: -15px;
    animation-delay: 0s;
}

.decoration-dot:nth-child(2) {
    top: 30%;
    right: -15px;
    animation-delay: 0.5s;
}

.decoration-dot:nth-child(3) {
    bottom: 20%;
    left: -15px;
    animation-delay: 1s;
}

.decoration-dot:nth-child(4) {
    bottom: 60%;
    right: -15px;
    animation-delay: 1.5s;
}

@keyframes dotPulse {
    0%, 100% { 
        transform: scale(1); 
        opacity: 0.6;
    }
    50% { 
        transform: scale(1.5); 
        opacity: 1;
    }
}

/* Cải thiện mockup content */
.mockup-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
}

.mockup-chart {
    height: 120px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.chart-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
}

.chart-dots {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.chart-dots span {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.mockup-data {
    display: flex;
    gap: 15px;
}

.data-item {
    flex: 1;
    height: 60px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
}

.data-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    transition: height 0.3s ease;
}

/* Thêm các icon nhỏ trong mockup */
.mockup-inline-icons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
}

.inline-icon {
    width: 24px;
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.inline-icon i {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.inline-icon.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.inline-icon.active i {
    color: white;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-primary);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: var(--accent-gradient);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.section-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.section-badge:hover::before {
    left: 100%;
}

.section-title {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

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

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-icon {
    position: relative;
    margin-bottom: 1.5rem;
}

.icon-bg {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.icon-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: iconShine 2s ease-in-out infinite;
}

@keyframes iconShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
    animation: iconPulse 2s ease-in-out infinite;
}

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

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-card p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.feature-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.feature-link a:hover {
    gap: 0.75rem;
}

/* App Features Section */
.app-features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.app-features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.app-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-badge {
    display: inline-block;
    background: var(--success-gradient);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.app-feature-content h2 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

.app-feature-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.feature-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.mini-feature {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.mini-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.mini-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: miniIconShine 2.5s ease-in-out infinite;
}

@keyframes miniIconShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

.mini-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.mini-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.app-mockup {
    width: 100%;
    max-width: 500px;
    height: 400px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.app-screen {
    width: 100%;
    height: 100%;
    padding: 20px;
}

.app-header {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.app-nav {
    display: flex;
    gap: 8px;
}

.app-nav span {
    width: 12px;
    height: 12px;
    background-color: var(--border-color);
    border-radius: 50%;
}

.app-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-chart {
    height: 120px;
    background: var(--success-gradient);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.chart-area {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
}

.chart-points {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.chart-points span {
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

.app-stats {
    display: flex;
    gap: 15px;
}

.stat-card {
    flex: 1;
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stat-icon {
    font-size: 1.5rem;
}

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Stats Section */
.stats {
    padding: 100px 0;
    background: var(--bg-primary);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.stat-card-large {
    background: white;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

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

.stat-icon-large {
    width: 60px;
    height: 60px;
    background: var(--warning-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.stat-icon-large::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: statIconShine 3s ease-in-out infinite;
}

@keyframes statIconShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

.stat-content h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.stat-content p {
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.pricing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    background: white;
    padding: 0.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: 0.3s;
    border-radius: 30px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background: var(--primary-gradient);
}

input:checked + .toggle-slider:before {
    transform: translateX(30px);
}

.save-badge {
    background: var(--success-gradient);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    transition: all 0.3s ease;
}

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

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-gradient);
    color: white;
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.pricing-header h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.currency {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
}

.period {
    font-size: 1.1rem;
    color: var(--text-muted);
}

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

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--bg-tertiary);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.pricing-note {
    text-align: center;
    margin-top: 2rem;
}

.pricing-note a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

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

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    position: relative;
}

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

.testimonial-content {
    margin-bottom: 1.5rem;
    position: relative;
}

.quote-icon {
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: -10px;
    left: -10px;
    font-family: serif;
}

.testimonial-content p {
    font-style: italic;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
    padding-left: 2rem;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.author-info span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.orb-4 {
    width: 250px;
    height: 250px;
    background: var(--secondary-gradient);
    top: -125px;
    left: -125px;
    animation-delay: 1s;
}

.orb-5 {
    width: 200px;
    height: 200px;
    background: var(--accent-gradient);
    bottom: -100px;
    right: -100px;
    animation-delay: 3s;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.cta p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 80px 0 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.footer-logo .logo-icon {
    background: var(--primary-gradient);
}

.footer-logo h3 {
    color: white;
    margin: 0;
}

.footer-section p {
    color: #cbd5e1;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: #94a3b8;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-buttons {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .app-feature {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero-container,
    .features-container,
    .app-features-container,
    .pricing-container,
    .testimonials-container,
    .cta-container,
    .footer-container {
        padding: 0 1rem;
    }
    
    .feature-card,
    .pricing-card,
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}