/*
========================================
KD Tech Solutions - Enterprise Design System
========================================
Version: 2.0
Focus: Enterprise Architecture, Solution Design, Digital Transformation
Color Palette: Professional, Authoritative, Modern
========================================
*/

/* 
---------------------------------------------
Enterprise Color Palette & Variables
--------------------------------------------- 
*/
:root {
    /* Primary Colors - Deep, Trustworthy */
    --color-navy-deep: #2c4a6b;
    --color-navy: #3d5a7a;
    --color-blue-primary: #4a6b8a;
    --color-blue-bright: #5b7c9d;
    
    /* Accent Colors - Architecture Focus */
    --color-architecture: #4a6b8a;      /* Medium Blue for Architecture */
    --color-transformation: #5b7c9d;    /* Light Blue for Transformation */
    --color-enterprise: #2c4a6b;        /* Navy Blue for Enterprise */
    --color-success: #059669;           /* Green for Success Metrics */
    --color-gold: #c9a66b;              /* Subtle Gold Accent */
    --color-cream: #f5f1e8;             /* Light Cream for Backgrounds */
    
    /* Neutral Palette */
    --color-white: #FFFFFF;
    --color-grey-50: #fafaf9;
    --color-grey-100: #f5f1e8;
    --color-grey-200: #e8dcc8;
    --color-grey-300: #d4c5ab;
    --color-grey-400: #a8978a;
    --color-grey-500: #7a6d63;
    --color-grey-600: #5a4f47;
    --color-grey-700: #3d362f;
    --color-grey-800: #2c251f;
    --color-grey-900: #1a1510;
    
    /* Text Colors */
    --color-text-primary: #0A1930;
    --color-text-secondary: #475569;
    --color-text-tertiary: #64748B;
    --color-text-light: #94A3B8;
    
    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #fafaf9;
    --bg-tertiary: #f5f1e8;
    --bg-accent: #e8dcc8;
    
    /* Spacing System (8px grid) */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;
    --space-2xl: 64px;
    --space-3xl: 96px;
    --space-4xl: 128px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* 
---------------------------------------------
Typography - Inter Font System
--------------------------------------------- 
*/
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

html,
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-navy-deep);
    margin: 0 0 var(--space-sm) 0;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 1.875rem;
    font-weight: 700;
}

h4 {
    font-size: 1.5rem;
    font-weight: 600;
}

h5 {
    font-size: 1.25rem;
    font-weight: 600;
}

h6 {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-blue-primary);
}

p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-md) 0;
}

.text-large {
    font-size: 1.125rem;
    line-height: 1.8;
}

.text-small {
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Responsive Typography */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
}

/* 
---------------------------------------------
Enhanced Button System
--------------------------------------------- 
*/
.main-button-gradient a,
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-navy-deep) 0%, var(--color-blue-primary) 100%);
    padding: 14px 32px;
    border-radius: var(--radius-md);
    text-transform: none;
    letter-spacing: 0.01em;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(44, 74, 107, 0.2);
}

.main-button-gradient a:hover,
.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-blue-primary) 0%, var(--color-blue-bright) 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(74, 107, 138, 0.3);
    color: var(--color-white);
}

.main-button-gradient a:active,
.btn-primary:active {
    transform: translateY(0);
}

.white-button a,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-blue-primary);
    background-color: var(--color-white);
    border: 2px solid var(--color-grey-300);
    padding: 12px 30px;
    border-radius: var(--radius-md);
    text-transform: none;
    transition: all var(--transition-base);
    cursor: pointer;
}

.white-button a:hover,
.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--color-blue-primary);
    color: var(--color-blue-primary);
    transform: translateY(-1px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-navy-deep);
    background: transparent;
    border: 2px solid var(--color-navy-deep);
    padding: 12px 30px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

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

/* 
---------------------------------------------
Enterprise Header Enhancements
--------------------------------------------- 
*/
.header-area {
    background: linear-gradient(135deg, rgba(10, 25, 48, 0.97) 0%, rgba(30, 58, 95, 0.95) 100%);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.background-header {
    background: linear-gradient(135deg, rgba(10, 25, 48, 0.98) 0%, rgba(30, 58, 95, 0.97) 100%) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

.header-area .main-nav .logo {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.01em;
}

.header-area .main-nav .nav li a {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.header-area .main-nav .nav li a:hover {
    color: var(--color-blue-bright) !important;
}

/* 
---------------------------------------------
Hero Section Enhancement
--------------------------------------------- 
*/
.main-banner {
    padding: var(--space-4xl) 0 var(--space-3xl);
    position: relative;
    overflow: hidden;
}

.main-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--color-white) 50%, var(--bg-accent) 100%);
    opacity: 0.5;
    z-index: -1;
}

.main-banner .header-text h6 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-blue-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.main-banner .header-text h2 {
    font-size: 3.5rem;
    font-weight: 1000;
    line-height: 1.15;
    color: var(--color-navy-deep);
    margin-bottom: var(--space-md);
    letter-spacing: -0.03em;
}

.main-banner .header-text h2 em {
    font-style: normal;
    background: linear-gradient(135deg, var(--color-architecture) 0%, var(--color-blue-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-banner .header-text p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 1600px;
}

@media (max-width: 991px) {
    .main-banner .header-text h2 {
        font-size: 2.25rem;
    }
}

.content-wrapper {
    max-width: 1650px !important;
}

/* 
---------------------------------------------
Enterprise Card System
--------------------------------------------- 
*/
.enterprise-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: 100%;
    border: 1px solid var(--color-grey-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.enterprise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--color-architecture) 0%, var(--color-blue-primary) 100%);
    transition: height var(--transition-base);
}

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

.enterprise-card:hover::before {
    height: 100%;
}

.enterprise-card h4 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-navy-deep);
    margin-bottom: var(--space-md);
}

.enterprise-card p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* 
---------------------------------------------
Icon Badge System (for Value Props)
--------------------------------------------- 
*/
.icon-badge {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--space-md);
    position: relative;
    transition: all var(--transition-base);
}

.icon-badge-architecture {
    background: linear-gradient(135deg, var(--color-navy-deep) 0%, var(--color-blue-primary) 100%);
    box-shadow: 0 8px 16px rgba(44, 74, 107, 0.25);
}

.icon-badge-transformation {
    background: linear-gradient(135deg, var(--color-blue-primary) 0%, var(--color-blue-bright) 100%);
    box-shadow: 0 8px 16px rgba(74, 107, 138, 0.25);
}

.icon-badge-enterprise {
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-deep) 100%);
    box-shadow: 0 8px 16px rgba(44, 74, 107, 0.25);
}

.icon-badge-gold {
    background: linear-gradient(135deg, var(--color-gold) 0%, #d4b17e 100%);
    box-shadow: 0 8px 16px rgba(201, 166, 107, 0.25);
}

.enterprise-card:hover .icon-badge {
    transform: scale(1.08) rotate(5deg);
}

/* 
---------------------------------------------
Testimonial/Quote Boxes
--------------------------------------------- 
*/
.testimonial-box {
    background: var(--bg-accent);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-gold);
    margin-bottom: var(--space-md);
    transition: all var(--transition-base);
}

.testimonial-box:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.testimonial-box p {
    font-style: italic;
    color: var(--color-navy-deep);
    margin: 0 0 var(--space-sm) 0;
    font-size: 0.9375rem;
    font-weight: 500;
}

.testimonial-box .attribution {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    font-style: normal;
    font-weight: 500;
}

/* 
---------------------------------------------
Section Backgrounds
--------------------------------------------- 
*/
section.bg-white {
    background-color: var(--color-white);
}

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

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

/* 
---------------------------------------------
Service Tabs Enhancement
--------------------------------------------- 
*/
.our-courses .naccs .menu div {
    background: var(--bg-secondary);
    border: 2px solid var(--color-grey-200);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    transition: all var(--transition-base);
    padding: var(--space-md);
}

.our-courses .naccs .menu div:hover {
    border-color: var(--color-blue-primary);
    background: var(--color-white);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.our-courses .naccs .menu div.active {
    background: linear-gradient(135deg, var(--color-navy-deep) 0%, var(--color-blue-primary) 100%);
    border-color: transparent;
    color: var(--color-white);
}

.our-courses .naccs .menu div span {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
}

.our-courses .nacc .right-content h4 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-navy-deep);
    margin-bottom: var(--space-md);
}

.our-courses .nacc .right-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.our-courses .nacc .right-content span {
    background: var(--bg-secondary);
    color: var(--color-navy-deep);
    border: 1px solid var(--color-grey-200);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-right: var(--space-sm);
    margin-bottom: var(--space-sm);
    display: inline-block;
    transition: all var(--transition-fast);
}

.our-courses .nacc .right-content span:hover {
    background: var(--color-blue-primary);
    color: var(--color-white);
    border-color: var(--color-blue-primary);
}

/* 
---------------------------------------------
Tag/Badge System
--------------------------------------------- 
*/
.tag {
    display: inline-block;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-right: var(--space-xs);
    margin-bottom: var(--space-xs);
}

.tag-architecture {
    background: rgba(74, 107, 138, 0.1);
    color: var(--color-architecture);
    border: 1px solid rgba(74, 107, 138, 0.2);
}

.tag-transformation {
    background: rgba(91, 124, 157, 0.1);
    color: var(--color-transformation);
    border: 1px solid rgba(91, 124, 157, 0.2);
}

.tag-enterprise {
    background: rgba(44, 74, 107, 0.1);
    color: var(--color-enterprise);
    border: 1px solid rgba(44, 74, 107, 0.2);
}

.tag-gold {
    background: rgba(201, 166, 107, 0.1);
    color: var(--color-gold);
    border: 1px solid rgba(201, 166, 107, 0.2);
}

/* 
---------------------------------------------
Form Enhancements (Legacy - form styles now in main CSS)
--------------------------------------------- 
*/

/* 
---------------------------------------------
Footer Enhancements
--------------------------------------------- 
*/
footer {
    background: transparent;
    color: var(--color-white);
}

footer .section-heading h4 {
    color: black;
}

footer .copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

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

.text-navy {
    color: var(--color-navy-deep);
}

.text-blue {
    color: var(--color-blue-primary);
}

.text-architecture {
    color: var(--color-architecture);
}

.text-transformation {
    color: var(--color-transformation);
}

.fw-bold {
    font-weight: 700;
}

.fw-semibold {
    font-weight: 600;
}

.fw-medium {
    font-weight: 500;
}

/* Spacing Utilities */
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.pb-xl { padding-bottom: var(--space-xl); }
.pt-xl { padding-top: var(--space-xl); }

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

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

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

/* 
---------------------------------------------
Accessibility Enhancements
--------------------------------------------- 
*/
*:focus-visible {
    outline: 2px solid var(--color-blue-primary);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-blue-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

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

/* 
---------------------------------------------
Print Styles
--------------------------------------------- 
*/
@media print {
    .header-area,
    .methodology-section,
    footer {
        display: none;
    }
}