/* ---------- RESET & GLOBAL ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0057ff;
    --primary-dark: #003ec2;
    --secondary: #00b4ff;
    --text-dark: #111827;
    --text-muted: #6b7280;
    --gray-bg: #f5f7fb;
    --white: #ffffff;
    --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 20px 35px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--white);
    color: var(--text-dark);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

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

.container {
    width: min(1280px, calc(100% - 48px));
    margin: 0 auto;
}

/* ---------- STICKY NAVBAR (dynamic scroll) ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1100;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
    backdrop-filter: blur(0px);
}

.navbar.navbar-scrolled {
    background: var(--white);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(0px);
    padding: 14px 0;
}

/* Navbar inner wrapper */
.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: white;
    transition: var(--transition);
}

.logo .logo-icon i {
    font-size: 32px;
    color: white;
    transition: var(--transition);
}

.logo span {
    color: var(--secondary);
    transition: var(--transition);
}

/* scrolled state: dark logo */
.navbar-scrolled .logo {
    color: var(--text-dark);
}
.navbar-scrolled .logo .logo-icon i {
    color: var(--primary);
}
.navbar-scrolled .logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.92);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

.navbar-scrolled .nav-links a {
    color: #1f2937;
}
.navbar-scrolled .nav-links a:hover {
    color: var(--primary);
}
.nav-links a:hover {
    color: white;
}

.nav-btn {
    background: white;
    color: var(--primary) !important;
    padding: 10px 24px;
    border-radius: 40px;
    font-weight: 700 !important;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.1);
}
.navbar-scrolled .nav-btn {
    background: var(--primary);
    color: white !important;
    box-shadow: 0 6px 12px rgba(0, 87, 255, 0.2);
}
.nav-btn:hover {
    transform: translateY(-2px);
}

/* ---------- HERO SECTION (with background image) ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    background:
    linear-gradient(rgba(2, 10, 35, 0.76), rgba(2, 10, 35, 0.88)), url('../images/bg-image.jpg');
    background-position: center;
    background-size: cover;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 90% 20%, rgba(0,180,255,0.2), transparent 70%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    padding: 140px 0 90px;
    position: relative;
    z-index: 5;
}

.hero-content h1 {
    font-size: clamp(42px, 6vw, 76px);
    line-height: 1.05;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: white;
    margin-bottom: 28px;
}
.hero-content h1 span {
    color: #63c7ff;
}
.hero-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.85);
    max-width: 580px;
    margin-bottom: 20px;
}

/* Tracking Card */
.tracking-card {
    background: rgba(10, 25, 55, 0.65);
    backdrop-filter: blur(16px);
    border-radius: 38px;
    padding: 36px 32px;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 25px 45px rgba(0,0,0,0.2);
}
.tracking-card h2 {
    font-size: 32px;
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
}
.tracking-card p {
    color: rgba(255,255,255,0.75);
    margin-bottom: 28px;
    line-height: 1.6;
}
.input-group {
    position: relative;
    margin-bottom: 20px;
}
.input-group i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    color: #5b6e8c;
}
.tracking-input {
    width: 100%;
    height: 64px;
    background: white;
    border: none;
    border-radius: 24px;
    padding: 0 20px 0 54px;
    font-weight: 500;
    font-size: 16px;
    outline: none;
}
.track-btn {
    width: 100%;
    background: linear-gradient(105deg, var(--secondary), var(--primary));
    border: none;
    height: 60px;
    border-radius: 32px;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: 0.2s;
    box-shadow: 0 14px 28px rgba(0,87,255,0.3);
}
.track-btn:hover {
    transform: translateY(-3px);
    filter: brightness(1.02);
}
.tracking-mini-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 28px;
}
.mini-box {
    background: rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 16px 12px;
    text-align: center;
    backdrop-filter: blur(4px);
}
.mini-box h4 {
    font-size: 22px;
    color: white;
    font-weight: 800;
    margin-bottom: 4px;
}
.mini-box span {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
}

/* ---------- GLOBAL SECTION STYLES ---------- */
.section-pad {
    padding: 100px 0;
}
.section-pad-sm {
    padding: 80px 0;
}
.section-title {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 64px;
}
.section-subtitle {
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 14px;
}
.section-heading {
    font-size: clamp(32px, 5vw, 54px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 16px 0 20px;
}
.section-desc {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Why choose us grid */
.why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
}
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.feature-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.feature-icon {
    width: 58px;
    height: 58px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}
.feature-text h4 {
    font-size: 22px;
    margin-bottom: 8px;
    font-weight: 700;
}
.feature-text p {
    color: #6b7280;
    line-height: 1.6;
}

/* dark stats card */
.global-stats-card {
    background: linear-gradient(135deg, #0f172a, #111827);
    border-radius: 34px;
    padding: 48px 40px;
    color: white;
    position: relative;
    overflow: hidden;
}
.stats-mini-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}
.stat-block {
    background: rgba(255,255,255,0.06);
    border-radius: 24px;
    padding: 28px 20px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.08);
}
.stat-number {
    font-size: 44px;
    font-weight: 800;
    margin-bottom: 8px;
}
.stats-bottom {
    background: rgba(255,255,255,0.06);
    border-radius: 24px;
    padding: 32px;
}
.badge-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}
.badge {
    background: rgba(255,255,255,0.1);
    border-radius: 60px;
    padding: 8px 18px;
    font-size: 13px;
}

/* services grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}
.service-card {
    background: white;
    padding: 42px 28px;
    border-radius: 32px;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}
.service-icon {
    width: 70px;
    height: 70px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 30px;
}
.service-card h3 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 14px;
}

/* network stats */
.network-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 28px;
}
.network-item {
    background: white;
    text-align: center;
    padding: 40px 24px;
    border-radius: 32px;
    box-shadow: var(--shadow-sm);
}
.network-item i {
    font-size: 3rem;
}

/* testimonial */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}
.testimonial-card {
    background: var(--gray-bg);
    padding: 38px 32px;
    border-radius: 32px;
}
.stars {
    color: #facc15;
    margin-bottom: 24px;
    font-size: 18px;
}

/* CTA */
.cta-section {
    background: linear-gradient(115deg, #0057ff, #00b4ff);
    padding: 100px 0;
    text-align: center;
}

/* footer */
.footer {
    background: #0f172a;
    color: white;
    padding-top: 80px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo .logo {
    color: white;
    margin-bottom: 20px;
    display: inline-flex;
}
.social-icons {
    display: flex;
    gap: 14px;
    margin-top: 24px;
}
.social-icons a {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}
.footer-links-column {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.footer-links-column a {
    color: rgba(255,255,255,0.7);
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 0;
    flex-wrap: wrap;
    gap: 16px;
}

/* ---------- RESPONSIVE MEDIA QUERIES ---------- */
@media (max-width: 1100px) {
    .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    }
    .why-grid {
    grid-template-columns: 1fr;
    gap: 50px;
    }
    .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;   /* on tablet, you could add a mobile menu, but we keep minimal. For responsive layout still works */
    }
    .section-pad {
    padding: 70px 0;
    }
    .hero-grid {
    padding: 110px 0 60px;
    }
    .hero-content h1 {
         margin-bottom: 0px;
    }
    .hero-content p {
        display: none;   /* hide hero paragraph on smaller screens for cleaner look */
    }
    .tracking-card {
    padding: 28px 24px;
    }
    .stats-mini-grid {
     grid-template-columns: 1fr;
    }
    .global-stats-card {
    padding: 32px 24px;
    }
    .stat-number {
    font-size: 36px;
    }
    .footer-grid {
    grid-template-columns: 1fr;
    text-align: left;
    }
    .footer-bottom {
    flex-direction: column;
    text-align: center;
    }
    .services-grid {
    grid-template-columns: 1fr;
    }
    .network-stats {
    grid-template-columns: 1fr 1fr;
    }
    .why-grid .feature-item {
    flex-direction: column;
    }
    .feature-icon {
    margin-bottom: 8px;
    }

    .mini-box {
        padding: 10px 6px;
    }
    .mini-box h4 {
        font-size: 16px;
    }
    .mini-box span {
        font-size: 12px;
    }
    
}

@media (max-width: 480px) {
    .container {
    width: calc(100% - 32px);
    }
    .section-heading {
    font-size: 32px;
    }
    .tracking-card h2 {
    font-size: 28px;
    }
    .network-stats {
    grid-template-columns: 1fr;
    }
    .testimonials-grid {
    grid-template-columns: 1fr;
    }
    .hero-content p {
    font-size: 1rem;
    }
    .stat-number {
    font-size: 32px;
    }
    .cta-section h2 {
    font-size: 38px !important;
    }
}