/* ===================================
   KEM Logistics - Modern CSS Styles
   Built with CSS3, Flexbox, and Grid
   =================================== */

/* ===================================
   CSS Reset & Base Styles
   =================================== */

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

:root {
    /* Color Palette - Professional & Modern */
    --primary-color: #ff9900;
    --primary-dark: #e68a00;
    --primary-light: #ffad33;
    --secondary-color: #232f3e;
    --secondary-light: #37475a;
    --accent-color: #00a8e1;
    --text-dark: #0f1111;
    --text-medium: #565959;
    --text-light: #ffffff;
    --background-light: #f3f3f3;
    --background-white: #ffffff;
    --border-color: #d5d9d9;
    --success-color: #067d62;
    --error-color: #c40000;
    --warning-color: #f0c14b;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-secondary: 'Georgia', serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Container Width */
    --container-max-width: 1200px;
    --container-padding: 1rem;
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Accessibility
   =================================== */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-sm);
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* ===================================
   Typography
   =================================== */

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--spacing-sm);
}

h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover,
a:focus {
    color: var(--primary-color);
}

/* ===================================
   Layout Components
   =================================== */

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

/* ===================================
   Header & Navigation
   =================================== */

.header {
    background-color: var(--secondary-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo {
    flex-shrink: 0;
}

.logo a {
    display: flex;
    flex-direction: column;
    color: var(--text-light);
    transition: opacity var(--transition-fast);
}

.logo a:hover {
    opacity: 0.9;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--primary-color);
}

.logo-subtitle {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-top: -4px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a:focus {
    background-color: var(--secondary-light);
    color: var(--primary-color);
}

.btn-login {
    background-color: var(--primary-color);
    color: var(--text-dark);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.btn-login:hover,
.btn-login:focus {
    background-color: var(--primary-light);
    color: var(--text-dark);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger {
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    margin: 3px 0;
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--text-light);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.btn-track {
    background-color: var(--accent-color);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-xl);
}

.btn-track:hover,
.btn-track:focus {
    background-color: #008bb8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    position: relative;
    color: var(--text-light);
    padding: var(--spacing-xxl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

/* Hero background image */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../assets/images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    opacity: 1;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

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

.hero h1 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: var(--spacing-xs);
}

/* ===================================
   Brand Showcase Section
   =================================== */

.brand-showcase-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0a0e27 100%);
    position: relative;
    overflow: hidden;
}

.brand-showcase-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 153, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 168, 225, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.brand-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo-container-futuristic {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 2px solid rgba(255, 153, 0, 0.3);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.orbit-1 {
    width: 100%;
    height: 100%;
    border-color: rgba(255, 153, 0, 0.4);
    animation-duration: 15s;
}

.orbit-2 {
    width: 80%;
    height: 80%;
    border-color: rgba(0, 168, 225, 0.4);
    animation-duration: 20s;
    animation-direction: reverse;
}

.orbit-3 {
    width: 60%;
    height: 60%;
    border-color: rgba(255, 153, 0, 0.6);
    animation-duration: 25s;
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.logo-icon-futuristic {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 40px rgba(255, 153, 0, 0.5), inset 0 0 20px rgba(255, 153, 0, 0.2);
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 40px rgba(255, 153, 0, 0.5), inset 0 0 20px rgba(255, 153, 0, 0.2);
    }
    50% {
        box-shadow: 0 0 60px rgba(255, 153, 0, 0.8), inset 0 0 30px rgba(255, 153, 0, 0.4);
    }
}

.favicon-display {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(255, 153, 0, 0.8));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.energy-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20% 30%, rgba(255, 153, 0, 0.5), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(0, 168, 225, 0.5), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.3), transparent);
    background-size: 200px 200px, 300px 300px, 150px 150px;
    animation: particlesFloat 15s linear infinite;
}

@keyframes particlesFloat {
    0% {
        background-position: 0 0, 40px 60px, 130px 270px;
    }
    100% {
        background-position: 200px 200px, 240px 260px, 330px 470px;
    }
}

.brand-text {
    color: var(--text-light);
    text-align: left;
}

.brand-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: #fff;
    margin-bottom: var(--spacing-md);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #ff9900, #00a8e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xl);
    text-transform: uppercase;
    letter-spacing: 3px;
}

.tech-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.spec-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 153, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.3s ease;
}

.spec-item:hover {
    border-color: #ff9900;
    box-shadow: 0 4px 20px rgba(255, 153, 0, 0.3);
    transform: translateY(-4px);
}

.spec-icon {
    font-size: 1.5rem;
}

.spec-item span:last-child {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    font-size: 0.9375rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-medium);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

/* ===================================
   Services Section
   =================================== */

.services-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-white);
}

.services-section h2 {
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-card {
    background: var(--background-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-medium);
}

.service-card:hover,
.service-card:focus-within {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.service-icon {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
}

.service-link {
    display: inline-block;
    color: var(--accent-color);
    font-weight: 600;
    transition: transform var(--transition-fast);
}

.service-link:hover,
.service-link:focus {
    transform: translateX(4px);
}

/* ===================================
   Quote Section
   =================================== */

.quote-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.quote-section h2 {
    text-align: center;
}

.quote-form {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    background: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    font-size: 1rem;
    font-family: var(--font-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 168, 225, 0.1);
}

.quote-result {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    display: none;
}

.quote-result.active {
    display: block;
}

.quote-result-card {
    background: var(--background-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--success-color);
}

.quote-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--success-color);
    margin: var(--spacing-md) 0;
}

/* ===================================
   About Section
   =================================== */

.about-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-intro {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.feature-item ul {
    list-style: none;
    padding-left: 0;
}

.feature-item li {
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: var(--spacing-xs);
    color: var(--text-medium);
}

.feature-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

.about-media {
    width: 100%;
}

.media-placeholder {
    background: var(--background-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-xxl);
    text-align: center;
    color: var(--text-medium);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border-color);
}

.about-media video,
.about-media img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

/* ===================================
   Testimonials Section
   =================================== */

.testimonials-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.testimonials-section h2 {
    text-align: center;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.testimonial-card {
    background: var(--background-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    color: var(--warning-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-card blockquote {
    font-style: italic;
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.testimonial-card cite {
    display: block;
    font-style: normal;
}

.testimonial-card cite strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.testimonial-card cite span {
    color: var(--text-medium);
    font-size: 0.875rem;
}

/* ===================================
   Contact Section
   =================================== */

.contact-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-white);
}

.contact-section h2 {
    text-align: center;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item h3 {
    color: var(--primary-color);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    margin-bottom: var(--spacing-xs);
}

.contact-item a {
    color: var(--text-dark);
    font-weight: 600;
}

.contact-item a:hover,
.contact-item a:focus {
    color: var(--primary-color);
}

.contact-item small {
    display: block;
    color: var(--text-medium);
    font-size: 0.875rem;
}

.contact-item address {
    font-style: normal;
    color: var(--text-medium);
}

.contact-form {
    background: var(--background-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.map-section {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.map-section h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.map-container {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.footer-column h4 {
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-column p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover,
.footer-column ul li a:focus {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--secondary-light);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.social-link:hover,
.social-link:focus {
    background-color: var(--primary-color);
    color: var(--text-dark);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--secondary-light);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 500px;
        padding: var(--spacing-xl) 0;
    }

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

    .brand-display {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform var(--transition-medium);
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active .hamburger:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .mobile-menu-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active .hamburger:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .quick-stats {
        grid-template-columns: 1fr;
    }

    .input-group {
        flex-direction: column;
    }

    .tracking-input {
        width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }

    .hero {
        min-height: 400px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .quote-form,
    .contact-form {
        padding: var(--spacing-md);
    }
}

/* ===================================
   Print Styles
   =================================== */

@media print {
    .header,
    .footer,
    .btn,
    .mobile-menu-toggle,
    .hero-actions,
    .tracking-form,
    .quote-form,
    .contact-form {
        display: none;
    }

    body {
        font-size: 12pt;
        color: black;
    }

    a {
        text-decoration: underline;
    }
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tracking-result.active,
.quote-result.active {
    animation: fadeIn 0.5s ease;
}

/* ===================================
   Loading States
   =================================== */

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===================================
   Utility Classes
   =================================== */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none;
}

.show {
    display: block;
}

/* ── Page Hero (inner pages) ── */
.page-hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1a2b3c 100%);
    color: white;
    padding: 4rem 0 3rem;
    text-align: center;
}
.page-hero h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}
.page-hero p {
    color: rgba(255,255,255,0.8);
    font-size: 1.1rem;
    margin: 0;
}

/* ── CTA Banner ── */
.cta-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, #e68900 100%);
    padding: 4rem 0;
    text-align: center;
}
.cta-banner h2 { color: var(--text-dark); margin-bottom: 0.75rem; }
.cta-banner p  { color: rgba(0,0,0,0.7); margin-bottom: 2rem; font-size: 1.05rem; }
.cta-banner .btn-secondary {
    background: rgba(0,0,0,0.15);
    color: var(--text-dark);
    border-color: rgba(0,0,0,0.3);
}
.cta-banner .btn-secondary:hover { background: rgba(0,0,0,0.25); }

/* ── Service features list ── */
.service-features {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
}
.service-features li {
    padding: 0.3rem 0;
    padding-left: 1.25rem;
    position: relative;
    color: var(--text-medium);
    font-size: 0.9rem;
}
.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

/* ── Auth tabs (customer-login.html) ── */
.auth-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
    gap: 0;
}
.auth-tab {
    flex: 1;
    padding: 0.75rem;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-medium);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
}
.auth-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}
.auth-tab:hover:not(.active) { color: var(--text-dark); }