/* Custom CSS for Argus Website */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --gradient-primary: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    --gradient-secondary: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 5px 25px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 40px rgba(0,0,0,0.2);
}

/* Global Styles */
html, body {
    height: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Main content wrapper */
.main-content {
    flex: 1;
    margin-bottom: 60px;
}

.btn {
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary {
    background: var(--gradient-primary);
    border: none;
}

.btn-primary:hover {
    background: var(--gradient-primary);
    filter: brightness(1.1);
}

/* Navigation */
.navbar {
    background: rgba(33, 37, 41, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    margin: 0 10px;
    transition: all 0.3s ease;
    color: white;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.3;
}

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

.hero-section .container .hero-title{
    margin-top: -20px;
}

.hero-section .container .hero-desc{
    margin-top: 100px;
    margin-bottom: 20px;
}

.hero-section .container .hero-button{
    margin-top: 100px;
}

.hero-icon {
    font-size: 15rem;
    color: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

/* Hero icon image styles */
.hero-icon img, img.hero-icon {
    max-width: 700px;
    max-height: 700px;
    width: auto;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

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

.display-4 {
    font-weight: 800;
    margin-bottom: 2rem;
}

.text-primary {
    background: linear-gradient(45deg, #fff, #e3f2fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Features Section */
.features-section {
    position: relative;
    padding: 120px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    overflow: hidden;
}

.features-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.03;
}

.features-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, var(--primary-color) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, var(--primary-color) 1px, transparent 1px);
    background-size: 60px 60px, 40px 40px;
    animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.section-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-medium);
}

.features-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    margin-top: 4rem;
}

.feature-card-large {
    background: white;
    border-radius: 24px;
    padding: 0;
    height: 100%;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border: 1px solid rgba(0,0,0,0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    position: relative;
}

.feature-card-large:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 60px rgba(0,0,0,0.15);
}

.feature-card-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.feature-card-header {
    padding: 2.5rem 2.5rem 1rem;
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.feature-icon-large {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.feature-icon-large::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.feature-card-large:hover .feature-icon-large::before {
    opacity: 1;
    animation: shimmer 1.5s ease-in-out;
}

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

.feature-badge {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.feature-card-body {
    padding: 0 2.5rem 2.5rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
    line-height: 1.3;
}

.feature-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.feature-highlights {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-highlights li {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    color: var(--dark-color);
}

.feature-highlights li i {
    color: #28a745;
    margin-right: 0.75rem;
    font-size: 0.9rem;
}

/* Stats Section */
.stats-container {
    background: white;
    border-radius: 20px;
    padding: 3rem 2rem;
    box-shadow: 0 15px 50px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.stats-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.02), rgba(0, 86, 179, 0.02));
    pointer-events: none;
}

.stat-item {
    position: relative;
    z-index: 2;
    padding: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Legacy feature card styles (keeping for compatibility) */
.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(0,0,0,0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.feature-card h5 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .features-section {
        padding: 80px 0;
    }
    
    .features-title {
        font-size: 2.5rem;
    }
    
    .features-subtitle {
        font-size: 1.1rem;
    }
    
    .feature-card-header {
        padding: 2rem 2rem 1rem;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .feature-card-body {
        padding: 0 2rem 2rem;
        text-align: center;
    }
    
    .feature-icon-large {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }
    
    .feature-badge {
        margin-top: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stats-container {
        padding: 2rem 1rem;
    }
}

/* Advantages Section */
.advantages-section {
    position: relative;
    padding: 80px 0;
    background: #ffffff;
    overflow: hidden;
}

.advantages-background {
    display: none; /* 移除背景特效 */
}

.advantages-pattern {
    display: none; /* 移除图案特效 */
}

.advantages-title {
    font-size: 3rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.advantages-subtitle {
    font-size: 1.2rem;
    color: #6c757d;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

.advantages-grid {
    margin-top: 3rem;
}

.advantage-card-modern {
    background: #ffffff;
    border: 2px solid #f8f9fa;
    border-radius: 15px;
    padding: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
    min-height: 350px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.advantage-card-modern:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.advantage-card-modern.featured {
    border: 2px solid var(--primary-color);
    background: #ffffff;
}

.advantage-card-modern.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.advantage-card-header {
    position: relative;
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.advantage-icon-modern {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 1.8rem;
    color: white;
    position: relative;
    z-index: 2;
    box-shadow: 0 8px 25px rgba(120, 119, 198, 0.25);
}

.advantage-pulse {
    display: none; /* 移除脉冲动画 */
}

.featured-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--gradient-primary);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.advantage-card-body {
    padding: 1rem 2rem 2rem;
    text-align: center;
}

.advantage-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.advantage-description {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.advantage-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.advantage-tag {
    background: rgba(120, 119, 198, 0.1);
    color: var(--primary-color);
    padding: 0.3rem 0.7rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(120, 119, 198, 0.2);
}

/* Use Cases Container */
.use-cases-container {
    background: #f8f9fa;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    border: 1px solid #e9ecef;
    margin-top: 3rem;
}

.use-cases-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.use-cases-subtitle {
    font-size: 1.1rem;
    color: #6c757d;
    margin-bottom: 0;
}

.use-case-modern {
    background: #ffffff;
    border-radius: 12px;
    padding: 1.8rem;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 100%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.use-case-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.use-case-modern:hover::before {
    transform: scaleY(1);
}

.use-case-modern:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: rgba(120, 119, 198, 0.3);
}

.use-case-icon {
    width: 55px;
    height: 55px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    margin-bottom: 1.2rem;
    box-shadow: 0 6px 20px rgba(120, 119, 198, 0.25);
}

.use-case-content h4 {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.use-case-content p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
}

.use-case-arrow {
    color: var(--primary-color);
    font-size: 1.1rem;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.use-case-modern:hover .use-case-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Legacy Advantage Card Styles (for compatibility) */
.advantage-card {
    background: #ffffff;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    height: 100%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.8rem;
    color: white;
}

.advantage-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 600;
}

.advantage-card p {
    color: #6c757d;
    line-height: 1.6;
}

/* Legacy Use Cases */
.use-case {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 1.5rem;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.use-case:hover {
    background: #ffffff;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.use-case h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.use-case p {
    color: #6c757d;
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive Design for Advantages */
@media (max-width: 768px) {
    .advantages-section {
        padding: 60px 0;
    }
    
    .advantages-title {
        font-size: 2.2rem;
    }
    
    .advantages-subtitle {
        font-size: 1.1rem;
    }
    
    .advantage-card-modern {
        min-height: 320px;
    }
    
    .advantage-card-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .advantage-card-body {
        padding: 1rem 1.5rem 1.5rem;
    }
    
    .use-cases-container {
        padding: 2rem 1.5rem;
        margin-top: 2rem;
    }
    
    .use-cases-title {
        font-size: 1.8rem;
    }
    
    .use-case-modern {
        padding: 1.5rem;
    }
}

/* Legacy Advantage Card Styles (for compatibility) */
.advantage-card {
    text-align: center;
    padding: 2rem 1rem;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2.5rem;
    box-shadow: var(--shadow-medium);
}

.advantage-card h4 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.use-case {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.use-case:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-medium);
}

.use-case h5 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Responsive Design for Advantages */
@media (max-width: 768px) {
    .advantages-section {
        padding: 80px 0;
    }
    
    .advantages-title {
        font-size: 2.5rem;
    }
    
    .advantages-subtitle {
        font-size: 1.1rem;
    }
    
    .advantage-card-modern {
        min-height: 350px;
    }
    
    .advantage-card-header {
        padding: 2rem 1.5rem 1rem;
    }
    
    .advantage-card-body {
        padding: 1rem 1.5rem 2rem;
    }
    
    .use-cases-container {
        padding: 2rem 1.5rem;
        margin-top: 2rem;
    }
    
    .use-cases-title {
        font-size: 2rem;
    }
    
    .use-case-modern {
        padding: 1.5rem;
    }
}

/* Modal Styles */
.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: var(--shadow-heavy);
}

.modal-header {
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px 20px 0 0;
    border-bottom: none;
}

.modal-title {
    font-weight: 700;
}

.btn-close {
    filter: invert(1);
}

.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Footer */
footer {
    background: var(--dark-color) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-icon {
        font-size: 8rem;
    }
    
    /* Hero icon image responsive styles */
    .hero-icon img, img.hero-icon {
        max-width: 200px;
        max-height: 200px;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .feature-card {
        margin-bottom: 2rem;
    }
    
    .advantage-icon {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success Message */
.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border: none;
    border-radius: 10px;
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border: none;
    border-radius: 10px;
    color: #721c24;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Section Spacing */
section {
    padding: 80px 0;
}

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

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

/* Pricing Page Styles */
.pricing-banner {
    background: var(--gradient-primary);
    text-align: center;
    color: white;
}

.pricing-header {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    overflow: hidden;
    position: relative;
}

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

.pricing-card-popular {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.pricing-card-popular:hover {
    transform: scale(1.05) translateY(-10px);
}

.popular-badge {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    text-align: center;
    padding: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.pricing-header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid #f0f0f0;
    background: white;
}

.pricing-card-popular .pricing-header {
    padding-top: 3rem;
}

.pricing-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.pricing-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.pricing-subtitle {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.pricing-btn {
    background: var(--gradient-primary);
    border: none;
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    width: 100%;
    margin-bottom: 1rem;
}

.pricing-btn:hover {
    background: var(--gradient-primary);
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.pricing-features {
    padding: 0 2rem 2rem;
}

.pricing-features ul {
    margin: 0;
    padding: 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

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

.pricing-features .fas.fa-check {
    font-size: 0.9rem;
    margin-right: 0.75rem;
}

.pricing-features .fas.fa-info-circle {
    font-size: 0.8rem;
    cursor: help;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.pricing-features .fas.fa-info-circle:hover {
    opacity: 1;
}

/* Responsive Design for Pricing */
@media (max-width: 768px) {
    .pricing-card-popular {
        transform: none;
        margin-bottom: 2rem;
    }
    
    .pricing-card-popular:hover {
        transform: translateY(-10px);
    }
    
    .pricing-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .pricing-title {
        font-size: 1.5rem;
    }
    
    .pricing-header {
        padding: 1.5rem;
    }
    
    .pricing-features {
        padding: 0 1.5rem 1.5rem;
    }
}