/* -------------------------------------------------------------
   RD Web Technologies - Premium Design System & Stylesheet
------------------------------------------------------------- */

/* --- CSS Variables & Theme Configuration --- */
:root {
    /* Color Tokens (Dark Mode Default) */
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    
    --text-primary: #b170e3;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    --primary: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-glow: rgba(37, 99, 235, 0.25);
    
    --accent: #06B6D4;
    --accent-hover: #0891B2;
    --accent-glow: rgba(6, 182, 212, 0.3);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    
    --glass-bg: rgba(15, 23, 42, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 16px;
    
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 1px 1px 0 rgba(255, 255, 255, 0.05);
    --nav-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    
    --gradient-primary: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
    --gradient-glow: linear-gradient(135deg, rgba(37, 99, 235, 0.4) 0%, rgba(6, 182, 212, 0.4) 100%);
    --gradient-overlay: linear-gradient(to bottom, rgba(15, 23, 42, 0.3), rgba(15, 23, 42, 0.95));

    /* UI Measurements */
    --max-width: 1280px;
    --nav-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    /* Animation Defaults */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F1F5F9;
    
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    
    --primary: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-glow: rgba(37, 99, 235, 0.15);
    
    --accent: #0891B2;
    --accent-hover: #0E7490;
    --accent-glow: rgba(8, 145, 178, 0.2);
    
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(15, 23, 42, 0.16);
    
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(15, 23, 42, 0.08);
    --glass-blur: 16px;
    
    --card-shadow: 0 10px 30px -15px rgba(15, 23, 42, 0.12), 0 1px 3px 0 rgba(15, 23, 42, 0.05);
    --nav-shadow: 0 4px 30px rgba(15, 23, 42, 0.05);
    
    --gradient-primary: linear-gradient(135deg, #2563EB 0%, #0891B2 100%);
    --gradient-glow: linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(8, 145, 178, 0.2) 100%);
    --gradient-overlay: linear-gradient(to bottom, rgba(248, 250, 252, 0.3), rgba(248, 250, 252, 0.98));
}

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

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.25;
}

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

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
    outline: none;
}

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

/* --- Layout Utility Classes --- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
    position: relative;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border: 2px solid var(--bg-primary);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* --- Global Section Headers --- */
.section-header {
    max-width: 700px;
    margin: 0 auto 5rem auto;
    text-align: center;
}

.section-tag {
    font-family: 'Poppins', sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #FFFFFF;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow), 0 0 15px var(--accent-glow);
    filter: brightness(1.1);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-text {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap var(--transition-fast), color var(--transition-fast);
}

.btn-text:hover {
    color: var(--primary);
    gap: 0.75rem;
}

.btn svg {
    margin-left: 0.5rem;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(3px);
}

/* --- Navigation Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: background-color var(--transition-normal), border var(--transition-normal), box-shadow var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--nav-shadow);
    background-color: var(--glass-bg);
}

.nav-container {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo Design */
.logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.03em;
    display: flex;
    flex-direction: column;
    line-height: 1;
}

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

.logo-sub {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    min-width: 240px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    padding: 0.6rem;
    display: none;
    flex-direction: column;
    gap: 0.3rem;
    z-index: 1200;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    display: flex;
}

.nav-dropdown-menu a {
    padding: 0.7rem 0.8rem;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.nav-dropdown-menu a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-link {
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.btn-quote-nav {
    padding: 0.6rem 1.5rem;
    font-size: 0.875rem;
}

/* Theme Toggle */
.theme-toggle-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.theme-toggle-btn:hover {
    transform: rotate(15deg) scale(1.05);
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
    position: absolute;
    transition: transform var(--transition-slow), opacity var(--transition-fast);
}

/* Dynamic Sun/Moon Toggle Visiblity */
[data-theme="dark"] .sun-icon { opacity: 1; transform: scale(1) rotate(0); }
[data-theme="dark"] .moon-icon { opacity: 0; transform: scale(0.5) rotate(90deg); }
[data-theme="light"] .sun-icon { opacity: 0; transform: scale(0.5) rotate(-90deg); }
[data-theme="light"] .moon-icon { opacity: 1; transform: scale(1) rotate(0); }

/* Mobile Navigation Hamburger */
.mobile-toggle-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: none;
    border: none;
}

.mobile-toggle-btn .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* Hamburger animations */
.mobile-toggle-btn.open .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.mobile-toggle-btn.open .bar:nth-child(2) { opacity: 0; transform: translateX(-10px); }
.mobile-toggle-btn.open .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* --- Background Gradients (Decorative) --- */
.bg-glow-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}

.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-glow) 0%, rgba(0,0,0,0) 70%);
    filter: blur(80px);
    opacity: 0.6;
}

.glow-top-left { top: -200px; left: -200px; }
.glow-bottom-right { bottom: -200px; right: -200px; }

/* Grid Pattern Overlay */
.bg-grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 24px 24px;
    opacity: 0.5;
    z-index: 0;
}

/* --- Common View Wrapper & Entrance Transitions --- */
.view-wrapper {
    position: relative;
    z-index: 2;
    margin-top: var(--nav-height);
    animation: fadeInUp var(--transition-slow);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Spinner */
.page-loader {
    width: 100%;
    height: calc(100vh - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-primary);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* -------------------------------------------------------------
   Page Specific Component Styling
------------------------------------------------------------- */

/* --- HOME PAGE --- */

/* Hero Section */
.hero {
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    align-items: center;
    padding: 4rem 0;
    position: relative;
}

.hero-content {
    max-width: 620px;
}

.hero-tagline {
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-tagline::before {
    content: '';
    width: 24px;
    height: 2px;
    background-color: var(--accent);
    display: inline-block;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

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

.hero-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

/* Floating Mockup Illustration */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-svg-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

.hero-glow-back {
    position: absolute;
    width: 350px;
    height: 350px;
    background: var(--gradient-glow);
    border-radius: 50%;
    filter: blur(50px);
    opacity: 0.4;
    z-index: -1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Why Choose Us Cards */
.why-choose-us {
    position: relative;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 2.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px -15px var(--primary-glow);
}

.card-icon-badge {
    width: 54px;
    height: 54px;
    border-radius: var(--border-radius-sm);
    background: var(--gradient-primary);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Featured Projects Section */
.home-projects {
    padding-bottom: 4rem;
}

/* Client Benefits Section */
.benefits-section {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
}

.benefit-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="light"] .benefit-icon {
    background-color: var(--bg-tertiary);
}

.benefit-content h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.benefit-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Contact CTA Banner */
.contact-cta-banner {
    position: relative;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    padding: 5rem 4rem;
    text-align: center;
    color: #FFFFFF;
    overflow: hidden;
    box-shadow: 0 15px 40px var(--primary-glow);
}

.contact-cta-banner h2 {
    color: #FFFFFF;
    font-size: 2.75rem;
    margin-bottom: 1.25rem;
}

.contact-cta-banner p {
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 2.5rem auto;
    opacity: 0.9;
}

.contact-cta-banner .btn-secondary {
    background: #FFFFFF;
    color: var(--primary);
    border: none;
}

.contact-cta-banner .btn-secondary:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.contact-cta-banner .bg-glow {
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, rgba(0,0,0,0) 70%);
}

/* --- SERVICES PAGE --- */
.services-grid-container {
    margin-top: 2rem;
}

.service-feature-list {
    margin-top: 1.5rem;
    list-style: none;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.service-feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.service-feature-list li svg {
    color: var(--accent);
    flex-shrink: 0;
}

/* --- ABOUT US PAGE --- */

/* Vision/Mission split cards */
.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.mv-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 3rem;
    display: flex;
    gap: 1.5rem;
}

.mv-icon {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mv-content h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.mv-content p {
    color: var(--text-secondary);
}

/* Core Values Section */
.values-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.value-card {
    padding: 2rem 1.5rem;
    text-align: center;
}

.value-number {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.3;
    margin-bottom: 0.5rem;
}

/* Expertise Grid inside About Page */
.expertise-card {
    background-color: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.expertise-list {
    list-style: none;
    margin-top: 1.5rem;
}

.expertise-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.expertise-list li svg {
    color: var(--accent);
}

/* --- PORTFOLIO PAGE --- */

/* Category Tabs */
.portfolio-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 4rem;
}

.tab-btn {
    padding: 0.6rem 1.5rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 30px;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: #FFFFFF;
    border-color: transparent;
    box-shadow: 0 4px 15px var(--primary-glow);
}

/* Portfolio Cards Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    transition: opacity var(--transition-normal);
}

.portfolio-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: var(--card-shadow);
}

.portfolio-img-wrapper {
    position: relative;
    aspect-ratio: 16 / 10;
    background-color: var(--bg-tertiary);
    overflow: hidden;
}

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

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

.portfolio-img-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.portfolio-card:hover .portfolio-img-overlay {
    opacity: 1;
}

.portfolio-card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-category-tag {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.portfolio-card-content h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.portfolio-card-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.portfolio-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
}

.portfolio-card-actions {
    display: flex;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.portfolio-card-actions .btn {
    flex: 1;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Custom illustration placeholder styling (SVG fallback) */
.project-svg-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
}

/* --- CASE STUDY MODAL --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal.open {
    opacity: 1;
    pointer-events: all;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(6px);
}

.modal-wrapper {
    position: relative;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    padding: 1rem;
    z-index: 10;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    overflow-y: auto;
    max-height: calc(90vh - 2rem);
    position: relative;
    animation: modalSlideUp var(--transition-normal);
}

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

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    z-index: 20;
}

.modal-close:hover {
    background-color: var(--bg-tertiary);
    transform: scale(1.05);
}

.modal-body {
    padding: 3rem;
}

.modal-header-section {
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
    padding-right: 2rem;
}

.modal-category {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.modal-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 3rem;
}

.modal-block {
    margin-bottom: 2rem;
}

.modal-block h4 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-block h4 svg {
    color: var(--accent);
}

.modal-block p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Results metrics badges */
.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.metric-badge {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--border-radius-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.metric-value {
    font-family: 'Poppins', sans-serif;
    font-size: 1.85rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.metric-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* --- TEAM SECTION --- */
.team-card {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.team-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    background: var(--gradient-primary);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.team-role {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
}

.team-bio {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.team-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.team-skills span {
    font-size: 0.75rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* --- BLOG SECTION --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.blog-detail-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    align-items: start;
}

.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.blog-sidebar-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
}

.blog-sidebar-card h3 {
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.blog-sidebar-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.blog-sidebar-item {
    display: block;
    padding: 0.95rem 1rem;
    border-radius: var(--border-radius-sm);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.blog-sidebar-item:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
}

.blog-sidebar-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 0.45rem;
}

.blog-sidebar-item h4 {
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.blog-sidebar-item p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.blog-grid-sidebar {
    grid-template-columns: 1fr;
    gap: 1rem;
}

.blog-card {
    padding: 0;
    overflow: hidden;
}

.blog-card-cover {
    height: 170px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.3rem;
    background: var(--gradient-primary);
    color: white;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.blog-card-content h3 {
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.blog-card-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.blog-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.blog-detail-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.blog-detail-cover {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: var(--gradient-primary);
    color: white;
}

.blog-detail-content {
    padding: 2rem 2.5rem 2.5rem;
}

.blog-detail-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.blog-card-small {
    min-height: 100%;
}

/* --- CONTACT PAGE --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info-card {
    background-color: var(--bg-secondary);
    padding: 3rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

.contact-info-list {
    list-style: none;
    margin-top: 2rem;
}

.contact-info-list li {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.contact-info-list li:last-child {
    margin-bottom: 0;
}

.contact-info-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    background-color: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

[data-theme="light"] .contact-info-icon {
    background-color: var(--bg-tertiary);
}

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

.contact-info-text p,
.contact-info-text a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-info-text a:hover {
    color: var(--accent);
}

/* Floating labels Form */
.contact-form-card {
    background-color: var(--bg-secondary);
    padding: 3.5rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    position: relative;
}

.form-group-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
    color: transparent; /* Needed for floating label logic */
}

.form-label {
    position: absolute;
    left: 1.25rem;
    top: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    pointer-events: none;
    transition: all var(--transition-fast);
}

/* Floating Label Animation triggers */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -0.65rem;
    left: 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--accent);
    border-radius: 4px;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

select.form-input {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='none' stroke='%2364748b' stroke-width='2' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'><path stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'></path></svg>");
    background-repeat: no-repeat;
    background-position: right 1.25rem center;
    background-size: 1.25rem;
}

textarea.form-input {
    min-height: 140px;
    resize: vertical;
}

/* Map Section (Premium vector mockup map instead of basic iframe) */
.map-section {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    display: none;
}

.map-mock-bg {
    width: 100%;
    height: 350px;
    background-color: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.map-node {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

.map-node::after {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    width: 32px;
    height: 32px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

.map-tooltip {
    position: absolute;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    z-index: 5;
    pointer-events: none;
    transform: translate(-50%, -125%);
    box-shadow: var(--card-shadow);
}

.map-tooltip h5 {
    color: var(--accent);
    margin-bottom: 0.15rem;
}

/* Form submitting loading spinner overlay */
.form-submit-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(30, 41, 59, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-md);
    z-index: 10;
}

[data-theme="light"] .form-submit-overlay {
    background-color: rgba(255, 255, 255, 0.9);
}

.form-submit-overlay.active {
    display: flex;
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.toast-content {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 4px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast.success .toast-content { border-left-color: #10B981; }
.toast.error .toast-content { border-left-color: #EF4444; }

/* -------------------------------------------------------------
   Footer Layout
------------------------------------------------------------- */
.footer {
    background-color: #0B0F19;
    border-top: 1px solid var(--border-color);
    color: #94A3B8;
    padding: 6rem 0 2rem 0;
}

[data-theme="light"] .footer {
    background-color: #0F172A;
    color: #94A3B8;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem 4rem 2rem;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 4rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
}

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

.footer-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.social-links a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    transition: all var(--transition-fast);
}

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

.footer-group h3 {
    color: #FFFFFF;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    font-size: 0.95rem;
    color: #94A3B8;
}

.footer-links a:hover {
    color: #FFFFFF;
    padding-left: 4px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.footer-contact li svg {
    color: var(--accent);
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
}

.footer-bottom-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

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

.footer-meta-links a:hover {
    color: #FFFFFF;
}

/* -------------------------------------------------------------
   Responsive Breakpoints & Media Queries
------------------------------------------------------------- */

@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-container {
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 3rem;
    }
    
    .footer-container > *:last-child {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    /* Navbar responsive */
    .mobile-toggle-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background-color: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        padding: 4rem 2rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition-normal), opacity var(--transition-normal);
        z-index: 999;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .btn-quote-nav {
        display: none;
    }
    
    /* Layout elements */
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero {
        text-align: center;
        padding: 2rem 0;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-tagline {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .contact-cta-banner {
        padding: 4rem 2rem;
    }
    
    .contact-cta-banner h2 {
        font-size: 2rem;
    }
    
    .modal-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .modal-body {
        padding: 2rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-container > * {
        grid-column: span 1 !important;
    }
    
    .footer-bottom-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-btns {
        flex-direction: column;
        gap: 1rem;
    }
}