/* ========== CSS VARIABLES ========== */
:root {
    --primary-blue: #0A3663;
    --light-blue: #1C5A9C;
    --accent-blue: #3E8ED0;
    --white: #ffffff;
    --light-bg: #F4F7F9;
    --text-dark: #333333;
    --text-light: #666666;
    --border-color: #E2E8F0;
    --success: #22c55e;
    --error: #ef4444;
    --font-main: 'Inter', sans-serif;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; 
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(62, 142, 208, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(10, 54, 99, 0.05) 0%, transparent 40%);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-blue);
}

p {
    color: var(--text-light);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

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

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

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

.bg-blue {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--light-blue) 100%);
}

/* ========== TOP BAR ========== */
.top-bar {
    background-color: #051C33;
    color: var(--white);
    font-size: 0.85rem;
    padding: 10px 0;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-left .divider {
    margin: 0 10px;
    opacity: 0.5;
}

.top-left i, .top-right i {
    margin-right: 5px;
    color: var(--accent-blue);
}

.top-right a:hover {
    color: var(--accent-blue);
}

/* ========== NAVBAR ========== */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 45px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.nav-menu ul {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    font-weight: 500;
    font-size: 1rem;
    color: var(--text-dark);
    position: relative;
    padding: 5px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--accent-blue);
    transition: var(--transition);
}

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

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

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    height: calc(100vh - 120px);
    min-height: 600px;
    background: url('assets/hero-bg.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8, 32, 60, 0.9), rgba(10, 54, 99, 0.8), rgba(28, 90, 156, 0.7), rgba(62, 142, 208, 0.6), rgba(10, 54, 99, 0.8));
    background-size: 300% 300%;
    animation: gradientShift 10s ease infinite;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    max-width: 800px;
}

.hero-content h1 {
    color: var(--white);
    font-size: 4rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.hero-content p {
    color: #f1f5f9;
    font-size: 1.4rem;
    margin-bottom: 40px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-blue);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(62, 142, 208, 0.4);
}

.btn-primary:hover {
    background-color: var(--light-blue);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(62, 142, 208, 0.6);
}

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

.btn-secondary:hover {
    background-color: #051C33;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ========== SERVICES ========== */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.service-card .icon-box {
    width: 70px;
    height: 70px;
    background: var(--light-bg);
    color: var(--accent-blue);
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.service-card:hover .icon-box {
    background: var(--accent-blue);
    color: var(--white);
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* ========== TRACKING ========== */
.tracking-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
}

.tracking-box input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    outline: none;
    transition: var(--transition);
}

.tracking-box input:focus {
    border-color: var(--accent-blue);
}

.tracking-result {
    max-width: 600px;
    margin: 30px auto 0;
    padding: 30px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-left: 5px solid var(--accent-blue);
    text-align: left;
}

.tracking-result.hidden {
    display: none;
}

.status-badge {
    background: #e0f2fe;
    color: var(--light-blue);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-left: 10px;
}

/* ========== WHY US ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.feature-item i {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

/* ========== CONTACT SECTION ========== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.contact-info {
    padding: 60px 40px;
}

.contact-info h2 {
    color: var(--white);
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.contact-desc {
    color: #cbd5e1;
    margin-bottom: 40px;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--accent-blue);
    margin-top: 5px;
}

.info-item h5 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.info-item p {
    color: #cbd5e1;
    margin: 0;
}

/* FORM */
.contact-form-container {
    padding: 60px;
    background: var(--white);
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--primary-blue);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
    background: #f8fafc;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(62, 142, 208, 0.1);
}

.checkbox-group, .radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 10px;
}

.checkbox-label, .radio-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-weight: 400 !important;
    color: var(--text-dark) !important;
    cursor: pointer;
}

.checkbox-label input, .radio-label input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-blue);
}

.consent-group {
    background: var(--light-bg);
    padding: 15px;
    border-radius: var(--radius-sm);
}

.form-msg {
    margin-bottom: 20px;
    padding: 15px;
    border-radius: var(--radius-sm);
    display: none;
    font-weight: 500;
}

.form-msg.success {
    display: block;
    background: #dcfce7;
    color: var(--success);
    border: 1px solid #bbf7d0;
}

.form-msg.error {
    display: block;
    background: #fee2e2;
    color: var(--error);
    border: 1px solid #fecaca;
}

/* ========== FOOTER ========== */
.footer {
    background: #051C33;
    color: #cbd5e1;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
}

.footer-logo span {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

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

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

.footer-contact p {
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
}

/* ========== ANIMATIONS ========== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 3rem;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar-inner {
        justify-content: center;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--white);
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        padding: 20px;
    }
    .nav-menu.active {
        display: block;
    }
    .nav-menu ul {
        flex-direction: column;
        gap: 15px;
    }
    .mobile-menu-btn {
        display: block;
    }
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    .checkout-box {
        flex-direction: column;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .hero-content h1 {
        font-size: 2.2rem;
    }
}