/* ==========================================================================
   CSS Variables & Tokens
   ========================================================================== */
   :root {
    /* Brand Colors */
    --color-primary: #031433; /* Deep Navy */
    --color-primary-light: #0d2859;
    --color-accent: #007bff; /* Electric Blue Accent */
    --color-accent-hover: #0056b3;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-600: #475569;
    --color-gray-800: #1e293b;
    --color-black: #0f172a;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Borders & Shadows */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-gray-800);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

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

ul {
    list-style: none;
}

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

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

.text-center { text-align: center; }
.text-white { color: var(--color-white); }
.text-accent { color: var(--color-accent); }

.bg-light { background-color: var(--color-gray-50); }

.lead {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--color-accent);
    border-radius: var(--radius-full);
}

.text-center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-top: 1rem;
    margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar.scrolled .logo-text,
.navbar.scrolled .logo i,
.navbar.scrolled .nav-link {
    color: var(--color-primary);
}

.navbar.scrolled .mobile-menu-btn {
    color: var(--color-primary);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-white);
}

.logo i {
    font-size: 2rem;
}

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

.logo-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    line-height: 1;
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    opacity: 0.9;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--color-white);
    font-weight: 500;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--color-accent);
    transition: width var(--transition-normal);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('https://images.unsplash.com/photo-1587293852726-70cdb56c2866?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(3, 20, 51, 0.9) 0%, rgba(3, 20, 51, 0.6) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    color: var(--color-white);
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* ==========================================================================
   About & Business Model Section
   ========================================================================== */
.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.business-model {
    background-color: var(--color-gray-50);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-200);
}

.model-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.model-step {
    text-align: center;
    flex: 1;
}

.step-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.step-icon-only {
    color: var(--color-gray-400);
    font-size: 1.5rem;
}

.step-arrow {
    color: var(--color-accent);
    font-size: 1.25rem;
}

.model-step h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.model-step p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.model-list ul li {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.model-list ul li i {
    margin-top: 5px;
}

/* ==========================================================================
   Key Sectors Section
   ========================================================================== */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.sector-card {
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border-bottom: 4px solid transparent;
}

.sector-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--color-accent);
}

.sector-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--color-gray-50);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    transition: all var(--transition-normal);
}

.sector-card:hover .sector-icon {
    background: var(--color-primary);
    color: var(--color-white);
}

.sector-card h3 {
    font-size: 1.25rem;
    margin: 0;
}

/* ==========================================================================
   Product Portfolio Section
   ========================================================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.portfolio-img {
    position: relative;
    height: 240px;
    overflow: hidden;
}

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

.portfolio-item:hover .portfolio-img img {
    transform: scale(1.1);
}

.portfolio-icon {
    position: absolute;
    bottom: 15px;
    right: 15px;
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 4px solid var(--color-white);
    z-index: 2;
}

.portfolio-content {
    padding: 2rem;
    flex-grow: 1;
}

.portfolio-content h3 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.portfolio-content ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    color: var(--color-gray-600);
}

.portfolio-content ul li {
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   Strengths Section
   ========================================================================== */
.strengths {
    background-color: var(--color-primary);
    background-image: radial-gradient(circle at right bottom, var(--color-primary-light) 0%, transparent 50%),
                      radial-gradient(circle at left top, rgba(0, 123, 255, 0.2) 0%, transparent 50%);
}

.strengths .section-title {
    color: var(--color-white);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    text-align: center;
    margin-top: 3rem;
}

.strength-item i {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.strength-item h4 {
    color: var(--color-white);
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.strength-item p {
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: var(--color-white);
    position: relative;
    padding-top: 4rem;
}

.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: translateY(-99%);
}

.footer-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 60px;
}

.footer-content-wrap {
    background-color: var(--color-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 4rem 3rem 2rem;
    color: var(--color-gray-200);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.footer-logo .logo-title {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: 1px;
}

.footer-desc {
    max-width: 400px;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background-color: var(--color-accent);
    transform: translateY(-3px);
}

.footer-links h3,
.footer-contact h3 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-links h3::after,
.footer-contact h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

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

.footer-links ul li a {
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
    color: var(--color-accent);
    padding-left: 5px;
}

.contact-list li {
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-box {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: rgba(0, 123, 255, 0.15);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

/* ==========================================================================
   Animations & Responsive
   ========================================================================== */
/* Animation Classes */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-left.visible, .slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }
.delay-4 { transition-delay: 0.8s; }
.delay-5 { transition-delay: 1.0s; }

/* Responsive Design */
@media (max-width: 992px) {
    .grid-2-col, .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .strengths-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-primary);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease;
    }

    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .navbar.scrolled .nav-links {
        background-color: var(--color-white);
        box-shadow: var(--shadow-md);
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        align-items: flex-start;
        padding-top: 100px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .model-steps {
        flex-direction: column;
        gap: 1rem;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }

    .portfolio-grid,
    .sectors-grid {
        grid-template-columns: 1fr;
    }

    .footer-content-wrap {
        padding: 3rem 1.5rem 2rem;
    }
}

/* =========================================
   Modal & Forms
   ========================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(3, 20, 51, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--color-white);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    /* Hide scrollbar for cleaner look */
    -ms-overflow-style: none;
    scrollbar-width: none;
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-content::-webkit-scrollbar {
    display: none;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--color-primary);
}

.modal-content h2 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-primary);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-gray-800);
    transition: border-color 0.3s ease;
    background-color: #f8fafc;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94a3b8;
    opacity: 1;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: var(--color-white);
}

.btn-block {
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
}

.form-message {
    margin-top: 1rem;
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.form-message.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}