/* ==========================================
   GLOBAL VARIABLES & RESET
========================================== */
:root {
    --primary-color: #0052cc;
    --primary-hover: #003d99;
    --accent-color: #00d2ff;
    --dark-navy: #0a192f;
    --light-bg: #f4f7fa;
    --white: #ffffff;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --transition: all 0.3s ease-in-out;
    --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
/* Container Box */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Flex Row */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: -15px;
  margin-right: -15px;
}

/* Base Column (auto-expanding) */
.col {
  flex: 1 0 0%;
  padding-left: 15px;
  padding-right: 15px;
}

/* Specific Column Width Classes (based on 12 columns) */
.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-6  { flex: 0 0 50%;  max-width: 50%; }
.col-4  { flex: 0 0 33.3333%; max-width: 33.3333%; }
.col-3  { flex: 0 0 25%;  max-width: 25%; }

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .col-6, .col-4, .col-3 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* ==========================================
   BUTTONS & TYPOGRAPHY
========================================== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

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

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

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

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

.w-100 {
    width: 100%;
}

.section-tag {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 8px;
}

/* ==========================================
   TOP BAR & NAVBAR
========================================== */
.top-bar {
    background-color: var(--dark-navy);
    color: #a8b2d1;
    font-size: 0.85rem;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info span {
    margin-right: 20px;
}

.contact-info i {
    color: var(--accent-color);
    margin-right: 6px;
}

.badge {
    background: rgba(0, 210, 255, 0.15);
    color: var(--accent-color);
    padding: 4px 10px;
    border-radius: 3px;
    font-weight: 600;
}

.navbar {
    background-color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.brand-logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--dark-navy);
    letter-spacing: -0.5px;
}

.logo-bold {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-link {
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark-navy);
    cursor: pointer;
}

/* ==========================================
   HERO SECTION
========================================== */
.hero {
    position: relative;
    height: 85vh;
    min-height: 550px;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    display: flex;
    align-items: center;
}

.slide.active {
    opacity: 1;
}

.hero-content {
    color: var(--white);
    max-width: 650px;
}

.hero-content .subtitle {
    color: var(--accent-color);
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 15px 0;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 30px;
}

.hero-btns {
    display: flex;
    gap: 15px;
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--accent-color);
    width: 28px;
    border-radius: 10px;
}

/* ==========================================
   METRICS SECTION
========================================== */
.metrics-section {
    background-color: var(--light-bg);
    padding: 50px 0;
    border-bottom: 1px solid var(--border-color);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    text-align: center;
}

.metric-card i {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.metric-card h3 {
    font-size: 2.4rem;
    color: var(--dark-navy);
    font-weight: 800;
}

.metric-card p {
    color: var(--text-muted);
    font-weight: 600;
}

/* ==========================================
   ABOUT SECTION
========================================== */
.about-section {
    padding: 90px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary-color);
    color: var(--white);
    padding: 20px 30px;
    border-radius: 8px;
    text-align: center;
}

.experience-badge span {
    font-size: 2rem;
    font-weight: 800;
    display: block;
    line-height: 1;
}

.about-text h2 {
    font-size: 2.2rem;
    color: var(--dark-navy);
    margin-bottom: 20px;
}

.about-list {
    margin-top: 25px;
}

.about-list li {
    margin-bottom: 12px;
    font-weight: 600;
}

.about-list i {
    color: var(--primary-color);
    margin-right: 10px;
}

/* ==========================================
   SERVICES SECTION
========================================== */
.services-section {
    background: var(--light-bg);
    padding: 90px 0;
}

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

.section-header p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 10px auto 40px;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    background: var(--white);
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 12px;
    color: var(--dark-navy);
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.card-link {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.9rem;
}

/* ==========================================
   CONTACT SECTION
========================================== */
.contact-section {
    padding: 90px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-top: 25px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    background: rgba(0, 82, 204, 0.1);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.contact-form-card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
}

.form-status {
    margin-top: 15px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==========================================
   FOOTER & MODAL
========================================== */
.footer {
    background: var(--dark-navy);
    color: #a8b2d1;
    padding-top: 70px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    padding-bottom: 50px;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-bottom {
    background: rgba(0,0,0,0.25);
    padding: 20px 0;
    font-size: 0.85rem;
}

.flex-between {
    display: flex;
    justify-content: space-between;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 25, 47, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 2000;
}

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

.modal-card {
    background: var(--white);
    padding: 40px;
    width: 90%;
    max-width: 500px;
    border-radius: 8px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    background: none;
    border: none;
    cursor: pointer;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: 75px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }
}