/* ===== MAIN CSS ===== */
:root {
    /* Color Palette */
    --primary-color: #0A2463;
    --secondary-color: #FF6B35;
    --accent-color: #1EA896;
    --dark-color: #212529;
    --light-color: #F8F9FA;
    --gray-color: #6C757D;
    --light-gray: #E9ECEF;
    --success-color: #28A745;
    --danger-color: #DC3545;
    --warning-color: #FFC107;
    --info-color: #17A2B8;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-round: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.18);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--dark-color);
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.highlight {
    color: var(--secondary-color);
}

.section-title {
    text-align: center;
    position: relative;
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
    white-space: nowrap;
    user-select: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

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

.btn-secondary:hover {
    background-color: #e05a2b;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    background-color: white;
    transition: var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(10, 36, 99, 0.1);
}

.form-control.error {
    border-color: var(--danger-color);
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--gray-color);
}

.form-text.error {
    color: var(--danger-color);
}

/* Flash Messages */
.flash-message {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    color: white;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
    max-width: 400px;
}

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

.flash-error {
    background-color: var(--danger-color);
}

.flash-warning {
    background-color: var(--warning-color);
    color: var(--dark-color);
}

.flash-info {
    background-color: var(--info-color);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Sections */
.section {
    padding: var(--spacing-xxl) 0;
}

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

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

/* Cards */
.card {
    background-color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    height: 100%;
    border: 1px solid var(--light-gray);
}

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

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    color: white;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--gray-color);
    margin-bottom: var(--spacing-md);
}

/* Grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(10, 36, 99, 0.9), rgba(30, 168, 150, 0.8)), 
                url('../images/banners/hero-bg.jpg') center/cover no-repeat;
    color: white;
    padding: var(--spacing-xxl) 0;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 2rem;
    color: white;
}

/* Testimonials */
.testimonial-slider {
    position: relative;
    overflow: hidden;
}

.testimonial-card {
    background-color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    margin: var(--spacing-md);
}

.testimonial-content {
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-left: var(--spacing-lg);
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 3rem;
    color: var(--accent-color);
    opacity: 0.3;
    font-family: serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-round);
    object-fit: cover;
}

.testimonial-info h4 {
    margin-bottom: var(--spacing-xs);
}

.testimonial-rating {
    color: var(--warning-color);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.pricing-card {
    position: relative;
    overflow: hidden;
    border: 2px solid var(--light-gray);
}

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

.pricing-badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-xl);
    transform: rotate(45deg);
    font-weight: 600;
    font-size: 0.875rem;
}

.pricing-header {
    text-align: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--light-gray);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: var(--spacing-md) 0;
}

.pricing-price span {
    font-size: 1rem;
    color: var(--gray-color);
}

.pricing-features {
    padding: var(--spacing-xl);
    list-style: none;
}

.pricing-features li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pricing-features li i {
    color: var(--success-color);
}

.pricing-footer {
    padding: var(--spacing-xl);
    text-align: center;
    border-top: 1px solid var(--light-gray);
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

/* Demo Page */
.demo-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: var(--spacing-xxl) 0;
}

.demo-steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--light-gray);
    z-index: 1;
}

.demo-step {
    position: relative;
    z-index: 2;
    text-align: center;
    flex: 1;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: white;
    border: 3px solid var(--light-gray);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-color);
    margin: 0 auto var(--spacing-md);
    transition: var(--transition-normal);
}

.demo-step.active .step-number {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Error Page */
.error-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.error-content h1 {
    font-size: 8rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.error-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.error-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-xl) 0;
}

.error-search {
    max-width: 500px;
    margin: 0 auto;
}

.search-form {
    display: flex;
    gap: var(--spacing-sm);
}

.search-form input {
    flex: 1;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

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

.pulse {
    animation: pulse 2s infinite;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.d-none { display: none; }
.d-flex { display: flex; }
.d-grid { display: grid; }
.d-block { display: block; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.rounded { border-radius: var(--radius-md); }
.rounded-circle { border-radius: var(--radius-round); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.bg-light { background-color: var(--light-color); }
.bg-dark { background-color: var(--dark-color); }
.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }

.text-light { color: var(--light-color); }
.text-dark { color: var(--dark-color); }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-muted { color: var(--gray-color); }

.overflow-hidden { overflow: hidden; }
.position-relative { position: relative; }
.position-absolute { position: absolute; }

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
}

/* Simple Hero Stats */
.hero-stats {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stats .d-flex {
    display: flex;
    justify-content: space-around;
}

.hero-stats .text-center h3 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.hero-stats .text-center p {
    font-size: 0.9rem;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .hero-stats .d-flex {
        flex-direction: column;
        gap: 25px;
    }
}


/* CTA Section */
.section-dark {
    background: #0b2a66;
    padding: 90px 20px;
}

.section-dark h2 {
    color: #ffffff;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-dark p {
    color: #c7d4f3;
    font-size: 1.05rem;
}

/* Buttons container */
.section-dark .d-flex {
    justify-content: center;
    margin-top: 35px;
}

/* Primary CTA button */
.section-dark .btn-secondary {
    background: #ff6a2b;
    border: none;
    color: #ffffff;
    padding: 14px 36px;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 6px;
}

/* Secondary CTA button */
.section-dark .btn-outline {
    border: 2px solid #ffffff;
    color: #ffffff;
    padding: 14px 30px;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 6px;
}