/* ===================================
   CCBONLINE Inc. - Corporate Website
   Modern, Professional, Tech-Oriented Design
   =================================== */

/* ==================== Accessibility Utilities ==================== */

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #000;
    color: #fff;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
    font-size: 14px;
    font-weight: 600;
}

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

/* Screen reader only content */
.sr-only,
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Improved focus indicators */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid #4a90e2;
    outline-offset: 2px;
}

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

/* ==================== CSS Variables - CCBONLINE Brand Colors ==================== */
:root {
    /* === CCBONLINE Brand Colors === */
    
    /* Primary Brand Colors */
    --brand-deep-navy: #002244;        /* RGB: 0, 34, 68 - Primary brand color */
    --brand-azure-blue: #0079C2;       /* RGB: 0, 121, 194 - Accent brand color */
    
    /* Secondary Brand Colors */
    --brand-silver-gray: #8A8D91;      /* RGB: 138, 141, 145 - Supporting text */
    --brand-warm-white: #F8F9FA;       /* RGB: 248, 249, 250 - Backgrounds */
    --brand-soft-green: #28A745;       /* RGB: 40, 167, 69 - Success states */
    
    /* Functional Colors */
    --brand-error-red: #DC3545;        /* Error states */
    --brand-warning-orange: #FD7E14;   /* Warning states */
    --brand-success-green: #28A745;    /* Success states */
    
    /* Legacy Color Mappings (for backward compatibility) */
    --color-navy: var(--brand-deep-navy);
    --color-blue: var(--brand-azure-blue);
    --color-light-gray: var(--brand-warm-white);
    --color-accent-blue: var(--brand-azure-blue);
    --color-accent-orange: var(--brand-warning-orange);
    
    /* Extended Palette */
    --color-white: #FFFFFF;
    --color-dark: var(--brand-deep-navy);
    --color-gray: var(--brand-silver-gray);
    --color-light: var(--brand-warm-white);
    --color-border: #E5E7EB;
    
    /* Brand Gradients */
    --gradient-primary: linear-gradient(135deg, var(--brand-deep-navy) 0%, #003d6b 100%);
    --gradient-accent: linear-gradient(135deg, var(--brand-azure-blue) 0%, #005fa3 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 34, 68, 0.9) 0%, rgba(0, 121, 194, 0.8) 100%);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-chinese: 'Noto Sans SC', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 174, 239, 0.3);
}

/* ==================== Global Styles ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary), var(--font-chinese);
    color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--color-white);
}

/* Language Toggle - Hide inactive language */
body[data-lang="en"] .cn-text {
    display: none !important;
}

body[data-lang="cn"] .en-text {
    display: none !important;
}

body[data-lang="en"] .en-text,
body[data-lang="cn"] .cn-text {
    display: inline-block;
}

/* For block elements like paragraphs */
body[data-lang="en"] p.en-text,
body[data-lang="cn"] p.cn-text {
    display: block;
}

/* Default to English */
body:not([data-lang]) .cn-text {
    display: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

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

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

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

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

/* ==================== Navigation Bar ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 34, 68, 0.95); /* Brand Deep Navy with transparency */
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.navbar.scrolled {
    background: var(--brand-deep-navy);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    width: 54px;
    height: 54px;
    transition: var(--transition-normal);
    filter: drop-shadow(0 2px 8px rgba(255, 122, 0, 0.3));
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    transition: var(--transition-normal);
    background: transparent;
    border: none;
    outline: none;
    box-shadow: none;
    clip-path: inset(5px);
}

.logo-icon:hover {
    transform: translateY(-4px) scale(1.1);
    filter: drop-shadow(0 8px 24px rgba(255, 122, 0, 0.6))
            drop-shadow(0 4px 12px rgba(255, 122, 0, 0.4))
            brightness(1.05);
}

.logo-icon:hover .logo-image {
    transform: rotate(-3deg);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    display: flex;
    gap: 0.5rem;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--brand-azure-blue);
    display: flex;
    gap: 0.5rem;
}

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

.nav-link {
    color: var(--color-white);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--brand-azure-blue);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--brand-azure-blue);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 80%;
}

/* Special navigation link for Submit Materials */
.nav-link-special {
    background: linear-gradient(135deg, var(--color-accent-orange), #f97316);
    color: white !important;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link-special::before {
    display: none;
}

.nav-link-special:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
    background: linear-gradient(135deg, #f97316, var(--color-accent-orange));
    color: white !important;
}

.nav-link-special i {
    font-size: 0.9rem;
}

/* CTA Button - Free Consultation */
.nav-cta {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white !important;
    padding: 0.6rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.nav-cta::before {
    display: none;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white !important;
}

.nav-cta i {
    font-size: 0.9rem;
    animation: pulse 2s ease-in-out infinite;
}

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

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: var(--spacing-sm);
    padding-left: var(--spacing-sm);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.lang-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.lang-btn.active {
    color: var(--color-accent-orange);
    background: rgba(255, 122, 0, 0.1);
}

.lang-btn:hover {
    color: var(--color-white);
}

.lang-divider {
    color: rgba(255, 255, 255, 0.3);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

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

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
    padding: var(--spacing-md);
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

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

.hero-tagline {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--brand-azure-blue);
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--brand-azure-blue);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #005fa3; /* Darker Azure Blue on hover */
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(0, 121, 194, 0.4);
}

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

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--brand-deep-navy);
}

.btn-full {
    width: 100%;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

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

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-white);
    border-radius: 12px;
    position: relative;
}

.scroll-mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-white);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
}

/* ==================== Services Section ==================== */
.services {
    background: var(--color-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--brand-azure-blue);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

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

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

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--brand-azure-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.feature-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--brand-warm-white);
    color: var(--brand-azure-blue);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    transition: var(--transition-fast);
}

.service-card:hover .feature-tag {
    background: var(--brand-azure-blue);
    color: var(--color-white);
}

.service-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    background: var(--brand-azure-blue);
    color: var(--color-white);
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition-normal);
}

.service-cta:hover {
    background: var(--brand-navy-blue);
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.service-cta i {
    transition: var(--transition-fast);
}

.service-cta:hover i {
    transform: translateX(5px);
}

/* ==================== About Section ==================== */
.about {
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text {
    padding-right: var(--spacing-md);
}

.about-description {
    margin-bottom: var(--spacing-md);
}

.about-description p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: 12px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.about-philosophy {
    padding: var(--spacing-md);
    background: var(--gradient-primary);
    border-radius: 12px;
    border-left: 4px solid var(--color-accent-orange);
}

.about-philosophy blockquote {
    color: var(--color-white);
    font-size: 1.125rem;
    font-style: italic;
    line-height: 1.7;
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 74, 173, 0.3), transparent);
}

/* ==================== CTA Section ==================== */
.cta-section {
    position: relative;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.cta-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(12, 27, 42, 0.92) 0%, rgba(0, 74, 173, 0.88) 100%);
}

.cta-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 174, 239, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 122, 0, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 174, 239, 0.06) 0%, transparent 50%);
    animation: float 15s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(30px, -30px);
    }
    66% {
        transform: translate(-30px, 30px);
    }
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3), 
                 0 0 30px rgba(0, 174, 239, 0.3);
    animation: fadeInUp 0.8s ease;
    position: relative;
    display: inline-block;
}

.cta-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-azure-blue), var(--brand-soft-green));
    border-radius: 2px;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(0) scaleX(1);
        opacity: 0.8;
    }
    50% {
        transform: translateX(calc(100% - 100px)) scaleX(1.5);
        opacity: 1;
    }
    100% {
        transform: translateX(0) scaleX(1);
        opacity: 0.8;
    }
}

.cta-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
    animation: fadeInUp 1s ease;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    animation: fadeInUp 1.2s ease;
}

.cta-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    background-image: linear-gradient(rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.08)), 
                      linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-orange));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    position: relative;
}

.cta-feature-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50px;
    padding: 2px;
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-orange));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition-normal);
}

.cta-feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 174, 239, 0.3);
}

.cta-feature-item:hover::before {
    opacity: 1;
}

.cta-feature-icon {
    color: var(--color-accent-blue);
    font-size: 1.25rem;
    transition: var(--transition-normal);
}

.cta-feature-item:hover .cta-feature-icon {
    color: var(--color-accent-orange);
    transform: scale(1.2) rotate(360deg);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease;
}

.btn-cta-primary {
    background: linear-gradient(135deg, var(--color-accent-blue) 0%, #0096D6 100%);
    color: var(--color-white);
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 8px 24px rgba(0, 174, 239, 0.4);
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
}

.btn-cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #00C1FF 0%, var(--color-accent-blue) 100%);
    transition: var(--transition-normal);
    z-index: -1;
}

.btn-cta-primary:hover::before {
    left: 0;
}

.btn-cta-primary:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 12px 40px rgba(0, 174, 239, 0.6);
}

.btn-cta-primary i {
    font-size: 1.25rem;
    animation: pulse 2s infinite;
}

.btn-cta-secondary i {
    font-size: 1.25rem;
    transition: var(--transition-fast);
}

.btn-cta-secondary:hover i {
    transform: rotate(15deg);
}

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

/* Glow effect on CTA buttons */
.btn-cta-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-cta-primary:active::after {
    width: 300px;
    height: 300px;
    opacity: 0;
}

.btn-cta-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-white);
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: 50px;
    border: 2px solid var(--color-accent-orange);
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.btn-cta-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent-orange);
    transition: var(--transition-normal);
    z-index: -1;
}

.btn-cta-secondary:hover::before {
    left: 0;
}

.btn-cta-secondary:hover {
    border-color: var(--color-accent-orange);
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 8px 24px rgba(255, 122, 0, 0.4);
}

.cta-trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 1.6s ease;
}

.trust-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-normal);
    padding: 1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
    cursor: default;
}

.trust-badge i {
    font-size: 2.5rem;
    color: var(--color-accent-blue);
    margin-bottom: 0.25rem;
    transition: var(--transition-normal);
    filter: drop-shadow(0 4px 8px rgba(0, 174, 239, 0.4));
}

.trust-badge:hover {
    color: var(--color-white);
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.trust-badge:hover i {
    color: var(--color-accent-orange);
    transform: scale(1.15) rotate(5deg);
    filter: drop-shadow(0 6px 12px rgba(255, 122, 0, 0.5));
}

/* ==================== Testimonials Section ==================== */
.testimonials {
    background: var(--color-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

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

.testimonial-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.testimonial-author {
    flex: 1;
}

.author-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 0.25rem;
}

.author-title,
.author-company {
    font-size: 0.875rem;
    color: var(--color-gray);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    color: var(--color-accent-orange);
}

.testimonial-text {
    color: var(--color-gray);
    line-height: 1.7;
    flex: 1;
}

.testimonial-footer {
    font-size: 0.875rem;
    color: var(--color-blue);
    font-weight: 500;
}

/* ==================== Partners Section ==================== */
.partners {
    background: var(--color-white);
    padding: var(--spacing-lg) 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    align-items: center;
}

.partner-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition-fast);
    opacity: 0.6;
    filter: grayscale(100%);
}

.partner-logo:hover {
    opacity: 1;
    filter: grayscale(0%);
    border-color: var(--color-accent-blue);
    transform: scale(1.05);
}

.partner-logo i {
    font-size: 2rem;
    color: var(--color-blue);
}

.partner-logo span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-dark);
}

/* ==================== Contact Section ==================== */
.contact {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info .section-title {
    color: var(--color-white);
    text-align: left;
}

.contact-info .section-title::after {
    left: 0;
    transform: translateX(0);
}

.contact-description {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.contact-details {
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--brand-azure-blue);
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-text a,
.contact-text p {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

.contact-text a:hover {
    color: var(--brand-azure-blue);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--brand-azure-blue);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-input {
    padding: 0.875rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-accent-blue);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ==================== Footer ==================== */
.footer {
    background: var(--brand-deep-navy);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--brand-azure-blue);
}

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

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

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--brand-azure-blue);
    padding-left: 5px;
}

.footer-social a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--brand-azure-blue);
}

.footer-legal span {
    color: rgba(255, 255, 255, 0.3);
}

/* ==================== Back to Top Button ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .cta-title {
        font-size: 2.25rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-navy);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-md);
        transition: var(--transition-normal);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-sm);
    }
    
    .lang-toggle {
        width: 100%;
        justify-content: flex-start;
        padding-left: 0;
        margin-left: 0;
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        padding-top: var(--spacing-sm);
    }
    
    .nav-hamburger {
        display: flex;
    }
    
    .nav-hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .nav-hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
    
    .cta-subtitle {
        font-size: 1rem;
    }
    
    .cta-features {
        flex-direction: column;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .logo-text {
        display: none;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .cta-section {
        min-height: 500px;
        padding: var(--spacing-lg) 0;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .btn-cta-primary,
    .btn-cta-secondary {
        padding: 0.875rem 1.75rem;
        font-size: 1rem;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ==================== Animations ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}