:root {
    --navy: #002B5B;
    --navy-dark: #001A38;
    --orange: #FF6B00;
    --orange-hover: #E56000;
    --orange-glow: rgba(255, 107, 0, 0.25);
    --grey: #475569;
    --light-grey: #F8FAFC;
    --border-color: #E2E8F0;
    --white: #FFFFFF;
    --success: #10B981;
    --font-family: 'Inter', sans-serif;
    --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    --container-width: 1240px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, .logo {
    font-weight: 800;
    color: var(--navy);
    line-height: 1.2;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem;
}

.section-badge, .hero-badge {
    display: inline-block;
    padding: 0.4rem 1.1rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    background: rgba(255, 107, 0, 0.1);
    color: var(--orange);
    border: 1px solid rgba(255, 107, 0, 0.25);
    margin-bottom: 1rem;
}

.section-badge.light {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.section-header h2 {
    font-size: clamp(2.2rem, 4vw, 3rem);
    margin-bottom: 0.8rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--grey);
}

.gradient-text {
    background: linear-gradient(135deg, var(--orange), #FFA800);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Portfolio Back Link Pill */
.portfolio-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: 30px;
    background: rgba(255, 107, 0, 0.12);
    border: 1px solid rgba(255, 107, 0, 0.3);
    color: var(--orange) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    transition: var(--transition);
}

.portfolio-back-link:hover {
    background: var(--orange);
    color: white !important;
    transform: translateX(-3px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 14px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--orange);
    color: var(--white);
    box-shadow: 0 4px 15px var(--orange-glow);
}

.btn-primary:hover {
    background-color: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--orange-glow);
}

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

.btn-secondary:hover {
    background-color: var(--navy-dark);
    transform: translateY(-2px);
}

.full-width {
    width: 100%;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

header.sticky {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 12px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

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

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
}

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

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

header.sticky .logo {
    color: var(--navy);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 28px;
}

.nav-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}

header.sticky .nav-links a {
    color: var(--navy);
}

.nav-links a:hover {
    color: var(--orange) !important;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--white);
    cursor: pointer;
}

header.sticky .mobile-menu-toggle {
    color: var(--navy);
}

/* Mobile Nav Drawer Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 27, 61, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.mobile-nav-content {
    text-align: center;
    width: 90%;
    max-width: 400px;
    position: relative;
    padding: 3rem 1.5rem;
}

.mobile-menu-close {
    position: absolute;
    top: 10px;
    right: 15px;
    background: transparent;
    border: none;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
}

.mobile-nav-links {
    list-style: none;
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-nav-links a {
    font-size: 1.25rem;
    color: white;
    text-decoration: none;
    font-weight: 700;
}

/* Hero Section */
.hero {
    min-height: 95vh;
    background: url('https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?auto=format&fit=crop&q=80&w=2000') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    color: var(--white);
    padding: 140px 0 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 43, 91, 0.92) 0%, rgba(0, 26, 56, 0.85) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 950px;
}

.hero h1 {
    font-size: clamp(3rem, 6vw, 4.8rem);
    color: var(--white);
    margin-bottom: 20px;
    letter-spacing: -1.5px;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    margin-bottom: 35px;
    opacity: 0.9;
    max-width: 700px;
}

/* Tracking Card */
.tracking-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    color: var(--grey);
}

.tracking-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tracking-header h3 {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--navy);
}

.demo-code-tip {
    font-size: 0.82rem;
    color: var(--grey);
    background: var(--light-grey);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

.tracking-input-group {
    display: flex;
    gap: 12px;
}

.input-wrapper {
    position: relative;
    flex: 1;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #94A3B8;
}

.tracking-input-group input {
    width: 100%;
    padding: 14px 14px 14px 42px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.tracking-input-group input:focus {
    outline: none;
    border-color: var(--orange);
    box-shadow: 0 0 10px var(--orange-glow);
}

/* Tracking Result Timeline */
.tracking-result-box {
    margin-top: 1.8rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    animation: fadeIn 0.4s ease;
}

.tracking-summary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.8rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.tracking-id-tag {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--orange);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tracking-summary-header h4 {
    font-size: 1.2rem;
    color: var(--navy);
}

.status-badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    font-weight: 700;
    font-size: 0.85rem;
}

.tracking-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    position: relative;
}

.timeline-step {
    text-align: center;
    position: relative;
}

.timeline-step::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    width: 100%;
    height: 3px;
    background: var(--border-color);
    z-index: 1;
}

.timeline-step:last-child::before {
    display: none;
}

.timeline-step.completed::before,
.timeline-step.active::before {
    background: var(--orange);
}

.step-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--light-grey);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.8rem;
    position: relative;
    z-index: 2;
    color: var(--grey);
    transition: var(--transition);
}

.timeline-step.completed .step-icon {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.timeline-step.active .step-icon {
    background: var(--orange);
    border-color: var(--orange);
    color: white;
    box-shadow: 0 0 15px var(--orange-glow);
}

.step-details h5 {
    font-size: 0.9rem;
    color: var(--navy);
    margin-bottom: 0.2rem;
}

.step-details span {
    font-size: 0.78rem;
    color: var(--grey);
}

/* Services Section */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 2.5rem 2rem;
    background: var(--light-grey);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    background: var(--white);
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    border-color: var(--orange);
}

.service-card .icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: rgba(0, 43, 91, 0.08);
    color: var(--navy);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

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

.service-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--grey);
    margin-bottom: 1.5rem;
}

.service-link {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--orange);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

/* Stats Section */
.stats {
    background: var(--navy);
    padding: 90px 0;
    color: var(--white);
}

.stats-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.stats-header h2 {
    color: var(--white);
    font-size: 2.8rem;
}

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

.stat-item .number {
    font-size: clamp(2.8rem, 5vw, 3.8rem);
    font-weight: 800;
    color: var(--orange);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-item .label {
    font-size: 1.05rem;
    font-weight: 600;
    opacity: 0.9;
}

/* Rate Estimator Section */
.quote-section {
    padding: 100px 0;
}

.quote-container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    background: var(--light-grey);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 4rem;
}

.quote-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.quote-features {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    color: var(--navy);
}

.feature-item i {
    color: var(--success);
    font-size: 1.2rem;
}

.quote-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--orange);
    box-shadow: 0 0 10px var(--orange-glow);
}

.result-message {
    padding: 1.2rem;
    border-radius: 10px;
    font-size: 0.98rem;
    text-align: center;
    margin-top: 1rem;
    animation: fadeIn 0.3s ease;
}

/* Newsletter */
.newsletter {
    padding: 80px 0;
}

.newsletter-card {
    background: linear-gradient(135deg, var(--navy), var(--navy-dark));
    color: var(--white);
    border-radius: 24px;
    padding: 4rem 2rem;
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
}

.newsletter-card h2 {
    color: var(--white);
    font-size: 2.4rem;
    margin-bottom: 0.8rem;
}

.newsletter-card p {
    opacity: 0.85;
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    justify-content: center;
    gap: 12px;
    max-width: 520px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 20px;
    border-radius: 6px;
    border: none;
    font-size: 0.95rem;
}

.form-feedback {
    margin-top: 1rem;
    padding: 0.8rem;
    border-radius: 8px;
    background: rgba(16, 185, 129, 0.2);
    color: #34D399;
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: var(--navy-dark);
    color: var(--white);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-about p {
    opacity: 0.8;
    margin-top: 1rem;
    max-width: 320px;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--orange);
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--orange);
}

.footer-contact p {
    opacity: 0.8;
    margin-bottom: 0.8rem;
    font-size: 0.92rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 1024px) {
    .quote-container {
        grid-template-columns: 1fr;
        padding: 3rem 2rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .header-cta {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .tracking-timeline {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .timeline-step::before {
        display: none;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .newsletter-form {
        flex-direction: column;
    }
}