/* ============================================
   FRONTERA FLEET - Marketing Website Styles
   Brand Colors:
     Blue:   #1e7cd8
     Orange: #e67c2c
     Green:  #57a849
   Fonts: Orbitron (headings), Exo 2 (body)
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --blue: #1e7cd8;
    --blue-dark: #1562ad;
    --blue-light: #e8f2fc;
    --orange: #e67c2c;
    --orange-dark: #c96821;
    --orange-light: #fef3e8;
    --green: #57a849;
    --green-dark: #448a39;
    --green-light: #edf7eb;
    --dark: #0d1117;
    --dark-2: #161b22;
    --dark-3: #21262d;
    --dark-4: #30363d;
    --gray-100: #f6f8fa;
    --gray-200: #e6eaef;
    --gray-300: #d0d7de;
    --gray-400: #8b949e;
    --gray-500: #6e7681;
    --white: #ffffff;
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Exo 2', sans-serif;
    --max-width: 1200px;
    --nav-height: 80px;
    --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-100);
    background: var(--dark);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--orange); }

img { max-width: 100%; height: auto; }

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.5px;
}

h1 { font-size: 3.2rem; }
h2 { font-size: 2.4rem; }
h3 { font-size: 1.6rem; }
h4 { font-size: 1.2rem; }

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    h3 { font-size: 1.3rem; }
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--dark-4);
    z-index: 1000;
    transition: background var(--transition);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.nav-logo img {
    height: 34px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.nav-links li { position: relative; }

.nav-links a {
    display: block;
    padding: 8px 12px;
    color: var(--gray-300);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
    background: var(--dark-3);
}

/* Dropdown */
.nav-dropdown { position: relative; }

.nav-dropdown > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 10px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition);
    list-style: none;
    box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
}

.dropdown-menu a:hover {
    background: var(--dark-3);
}

.dropdown-menu .dropdown-desc {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 2px;
}

/* CTA button in nav */
.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px !important;
    background: var(--blue) !important;
    color: var(--white) !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    font-size: 0.8rem !important;
    transition: all var(--transition) !important;
}

.nav-cta:hover {
    background: var(--blue-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(30, 124, 216, 0.3);
}

/* Hidden checkbox for mobile toggle — NOT display:none (breaks iOS Safari) */
.nav-check {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

/* Mobile menu toggle (label for checkbox) */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-300);
    margin: 6px 0;
    transition: all var(--transition);
    border-radius: 2px;
}

@media (max-width: 1024px) {
    .nav-inner { position: relative; }

    .nav-toggle {
        display: block;
        position: relative;
        z-index: 10002;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }

    .nav-controls {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        z-index: 10001;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--dark);
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
        gap: 4px;
        overflow-y: auto;
        transform: translateX(100%);
        transition: transform var(--transition);
        z-index: 9999;
        pointer-events: none;
    }

    .nav-links.open,
    .nav-check:checked ~ .nav-links {
        transform: translateX(0);
        pointer-events: auto;
    }

    .nav-links li { width: 100%; }

    .nav-links a {
        width: 100%;
        font-size: 1.05rem;
        padding: 14px 16px;
    }

    /* Disable hover-triggered dropdowns on touch — only open via JS tap */
    .nav-dropdown:hover .dropdown-menu {
        display: none;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        background: var(--dark-3);
        border: none;
        border-radius: 8px;
        margin-top: 4px;
        box-shadow: none;
        min-width: 0;
        width: 100%;
    }

    .nav-dropdown.open .dropdown-menu {
        display: block;
    }

    .dropdown-menu a {
        padding: 12px 16px;
        font-size: 0.95rem;
    }

    .dropdown-menu .dropdown-desc {
        font-size: 0.8rem;
    }

    .nav-cta {
        width: 100% !important;
        text-align: center;
        justify-content: center;
        margin-top: 12px;
    }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--blue-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(30, 124, 216, 0.35);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--dark-4);
}

.btn-secondary:hover {
    border-color: var(--blue);
    color: var(--blue);
    transform: translateY(-2px);
}

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

.btn-orange:hover {
    background: var(--orange-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(230, 124, 44, 0.35);
}

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

.btn-green:hover {
    background: var(--green-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(87, 168, 73, 0.35);
}

.btn-lg { padding: 18px 40px; font-size: 1.1rem; }

.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(30, 124, 216, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(87, 168, 73, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(230, 124, 44, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content { max-width: 560px; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(30, 124, 216, 0.1);
    border: 1px solid rgba(30, 124, 216, 0.2);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--blue);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--blue) 0%, var(--green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--gray-400);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--dark-4);
}

.hero-stat-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

.hero-stat-value .accent-blue { color: var(--blue); }
.hero-stat-value .accent-orange { color: var(--orange); }
.hero-stat-value .accent-green { color: var(--green); }

.hero-stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 4px;
}

/* Hero visual (map mockup) */
.hero-visual {
    position: relative;
    height: 500px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--dark-4);
    background: var(--dark-2);
}

.hero-map-placeholder {
    width: 100%;
    height: 100%;
    background:
        linear-gradient(135deg, var(--dark-2) 0%, var(--dark-3) 100%);
    position: relative;
    overflow: hidden;
}

/* Grid lines for map mockup */
.hero-map-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(30, 124, 216, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 124, 216, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Floating route lines */
.map-route {
    position: absolute;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), transparent);
    border-radius: 2px;
    opacity: 0.4;
}

.map-route-1 { top: 30%; left: 10%; width: 60%; transform: rotate(-5deg); }
.map-route-2 { top: 55%; left: 20%; width: 50%; transform: rotate(8deg); background: linear-gradient(90deg, var(--green), transparent); }
.map-route-3 { top: 70%; left: 5%; width: 70%; transform: rotate(-2deg); background: linear-gradient(90deg, var(--orange), transparent); }

/* Vehicle dots */
.map-vehicle {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--white);
    box-shadow: 0 0 12px rgba(30, 124, 216, 0.5);
    animation: vehiclePulse 3s infinite;
}

.map-vehicle-1 { top: 28%; left: 35%; background: var(--blue); animation-delay: 0s; }
.map-vehicle-2 { top: 52%; left: 55%; background: var(--green); animation-delay: 1s; }
.map-vehicle-3 { top: 68%; left: 40%; background: var(--orange); animation-delay: 2s; }
.map-vehicle-4 { top: 40%; left: 70%; background: var(--blue); animation-delay: 0.5s; }
.map-vehicle-5 { top: 75%; left: 65%; background: var(--green); animation-delay: 1.5s; }

@keyframes vehiclePulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 12px rgba(30, 124, 216, 0.5); }
    50% { transform: scale(1.2); box-shadow: 0 0 20px rgba(30, 124, 216, 0.8); }
}

/* Floating info cards on map */
.map-card {
    position: absolute;
    background: var(--dark);
    border: 1px solid var(--dark-4);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 0.75rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.map-card-1 {
    top: 15%;
    right: 10%;
}

.map-card-2 {
    bottom: 15%;
    left: 10%;
}

.map-card-status {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
    font-weight: 600;
    color: var(--white);
}

.map-card-status .status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
}

.map-card-detail {
    color: var(--gray-500);
    font-size: 0.7rem;
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content { max-width: 100%; }
    .hero-stats { justify-content: center; }
    .hero-visual { height: 350px; }
    .btn-group { justify-content: center; }
}

@media (max-width: 480px) {
    .hero-stats { flex-direction: column; gap: 20px; }
}

/* --- Section Styles --- */
.section {
    padding: 100px 0;
    position: relative;
}

.section-dark { background: var(--dark); }
.section-darker { background: var(--dark-2); }

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-label {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--blue);
    margin-bottom: 16px;
}

.section-header h2 {
    margin-bottom: 16px;
    color: var(--white);
}

.section-header p {
    color: var(--gray-400);
    font-size: 1.1rem;
}

/* --- Feature Cards Grid --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features-grid { grid-template-columns: 1fr; } }

.feature-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 14px;
    padding: 32px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--green));
    opacity: 0;
    transition: opacity var(--transition);
}

.feature-card:hover {
    border-color: var(--dark-3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.icon-blue { background: rgba(30, 124, 216, 0.1); color: var(--blue); }
.icon-orange { background: rgba(230, 124, 44, 0.1); color: var(--orange); }
.icon-green { background: rgba(87, 168, 73, 0.1); color: var(--green); }

.feature-card h3 {
    color: var(--white);
    margin-bottom: 12px;
    font-size: 1.15rem;
}

.feature-card p {
    color: var(--gray-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

.feature-card .feature-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blue);
}

.feature-card .feature-link:hover { color: var(--orange); }

/* --- Large Feature Showcase --- */
.feature-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.feature-showcase:last-child { margin-bottom: 0; }

.feature-showcase.reverse { direction: rtl; }
.feature-showcase.reverse > * { direction: ltr; }

.feature-showcase-visual {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--dark-4);
    background: var(--dark-2);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.feature-showcase-content h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 16px;
}

.feature-showcase-content p {
    color: var(--gray-400);
    margin-bottom: 24px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    margin-bottom: 32px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    color: var(--gray-300);
    font-size: 0.95rem;
}

.feature-list li .check {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(87, 168, 73, 0.1);
    color: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    margin-top: 2px;
}

@media (max-width: 768px) {
    .feature-showcase {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .feature-showcase.reverse { direction: ltr; }
}

/* --- Solutions Section --- */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 768px) { .solutions-grid { grid-template-columns: 1fr; } }

.solution-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 14px;
    padding: 40px 32px;
    text-align: center;
    transition: all var(--transition);
}

.solution-card:hover {
    border-color: var(--blue);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.solution-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.solution-card h3 {
    color: var(--white);
    margin-bottom: 12px;
}

.solution-card p {
    color: var(--gray-400);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

/* --- Pricing Section --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

@media (max-width: 768px) { .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; } }

.pricing-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 16px;
    padding: 40px 32px;
    position: relative;
    transition: all var(--transition);
}

.pricing-card.featured {
    border-color: var(--blue);
    box-shadow: 0 0 40px rgba(30, 124, 216, 0.1);
}

.pricing-card.featured::before {
    display: none;
}

.pricing-card h3 {
    color: var(--white);
    margin-bottom: 8px;
    font-size: 1.3rem;
}

.pricing-card .price {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--white);
    margin: 16px 0;
}

.pricing-card .price span {
    font-size: 1rem;
    color: var(--gray-500);
    font-family: var(--font-body);
    font-weight: 400;
}

.pricing-card .pricing-desc {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--dark-4);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    color: var(--gray-300);
    font-size: 0.9rem;
}

.pricing-features li .check-icon {
    color: var(--green);
    font-weight: 700;
}

.pricing-card .btn { width: 100%; }

/* --- Stats Bar --- */
.stats-bar {
    background: var(--dark-2);
    border-top: 1px solid var(--dark-4);
    border-bottom: 1px solid var(--dark-4);
    padding: 48px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

.stat-item h3 {
    font-size: 2.2rem;
    color: var(--blue);
    margin-bottom: 8px;
}

.stat-item p {
    color: var(--gray-400);
    font-size: 0.9rem;
}

/* --- Testimonials / Social Proof --- */
.trust-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    opacity: 0.4;
    filter: grayscale(1);
}

.trust-logos span {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--gray-400);
    font-weight: 600;
}

/* --- CTA Section --- */
.cta-section {
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 50% 50%, rgba(30, 124, 216, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    color: var(--gray-400);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

/* --- Contact / Demo Form --- */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

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

.form-group.full { grid-column: 1 / -1; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-300);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--dark-3);
    border: 1px solid var(--dark-4);
    border-radius: 8px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(30, 124, 216, 0.1);
}

.form-group textarea { min-height: 120px; resize: vertical; }

.form-group select { cursor: pointer; }

/* --- Page Header (inner pages) --- */
.page-header {
    padding: 140px 0 60px;
    text-align: center;
    position: relative;
    background: var(--dark-2);
    border-bottom: 1px solid var(--dark-4);
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(30, 124, 216, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
}

.page-header p {
    color: var(--gray-400);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.page-header .breadcrumb {
    margin-bottom: 16px;
    font-size: 0.85rem;
    position: relative;
}

.page-header .breadcrumb a { color: var(--gray-500); }
.page-header .breadcrumb a:hover { color: var(--blue); }
.page-header .breadcrumb span { color: var(--gray-400); }

/* --- Feature Detail Pages --- */
.detail-hero {
    padding: 140px 0 80px;
    position: relative;
}

.detail-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(30, 124, 216, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

@media (max-width: 768px) { .detail-content { grid-template-columns: 1fr; } }

/* --- Capability List --- */
.capability-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 640px) { .capability-grid { grid-template-columns: 1fr; } }

.capability-item {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 10px;
    padding: 24px;
    transition: all var(--transition);
}

.capability-item:hover {
    border-color: var(--dark-3);
    background: var(--dark-3);
}

.capability-item h4 {
    color: var(--white);
    margin-bottom: 8px;
    font-size: 1rem;
}

.capability-item p {
    color: var(--gray-400);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* --- Comparison Table --- */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--dark-4);
}

.comparison-table th {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
    background: var(--dark-2);
}

.comparison-table td {
    font-size: 0.9rem;
    color: var(--gray-300);
}

.comparison-table .check-yes { color: var(--green); font-weight: 700; }
.comparison-table .check-no { color: var(--gray-500); }

/* --- Footer --- */
.footer {
    background: var(--dark-2);
    border-top: 1px solid var(--dark-4);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand img { height: 28px; margin-bottom: 16px; margin-left: -2px; }

.footer-brand p {
    color: var(--gray-500);
    font-size: 0.85rem;
    line-height: 1.6;
    max-width: 300px;
}

.footer-col h4 {
    color: var(--white);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

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

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

.footer-col ul a {
    color: var(--gray-500);
    font-size: 0.85rem;
    transition: color var(--transition);
}

.footer-col ul a:hover { color: var(--white); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid var(--dark-4);
    color: var(--gray-500);
    font-size: 0.8rem;
}

.footer-bottom a { color: var(--gray-400); }
.footer-bottom a:hover { color: var(--white); }

@media (max-width: 640px) {
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

/* --- About Page --- */
.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 768px) { .about-values { grid-template-columns: 1fr; } }

.value-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 14px;
    padding: 32px;
    text-align: center;
}

.value-card h3 {
    color: var(--white);
    margin: 16px 0 12px;
}

.value-card p {
    color: var(--gray-400);
    font-size: 0.9rem;
}

/* --- Tech Stack Display --- */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 768px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }

.tech-item {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: all var(--transition);
}

.tech-item:hover {
    border-color: var(--blue);
    transform: translateY(-2px);
}

.tech-item .tech-name {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--white);
    margin-bottom: 4px;
}

.tech-item .tech-desc {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }

/* --- Contact Page Two-Column --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-info-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 16px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-info-card .info-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-info-card h4 {
    color: var(--white);
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.contact-info-card p {
    color: var(--gray-400);
    font-size: 0.85rem;
}

/* Form card wrapper */
.form-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: 16px;
    padding: 40px;
}

.form-card h3 {
    color: var(--white);
    margin-bottom: 8px;
}

.form-card .form-subtitle {
    color: var(--gray-400);
    font-size: 0.9rem;
    margin-bottom: 32px;
}

/* --- Alert types list --- */
.alert-list {
    list-style: none;
}

.alert-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--dark-4);
}

.alert-item:last-child { border-bottom: none; }

.alert-severity {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 6px;
}

.severity-critical { background: #e53e3e; }
.severity-warning { background: var(--orange); }
.severity-info { background: var(--blue); }

.alert-item h4 {
    color: var(--white);
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.alert-item p {
    color: var(--gray-400);
    font-size: 0.85rem;
}

/* Visual placeholders with SVG icons */
.visual-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.visual-placeholder svg {
    width: 140px;
    height: 140px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.visual-placeholder span {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ============================================
   LIGHT THEME
   ============================================ */
body.light-theme {
    --dark: #ffffff;
    --dark-2: #f6f8fa;
    --dark-3: #e6eaef;
    --dark-4: #d0d7de;
    --gray-100: #1a1a2e;
    --gray-200: #2d2d44;
    --gray-300: #444466;
    --gray-400: #5c5c7a;
    --gray-500: #8b8ba3;
    --white: #0d1117;
}

body.light-theme { background: #ffffff; color: #1a1a2e; }

body.light-theme .nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: #d0d7de;
}

body.light-theme .nav-links a { color: #444466; }
body.light-theme .nav-links a:hover,
body.light-theme .nav-links a.active { color: #0d1117; background: #e6eaef; }

body.light-theme .dropdown-menu {
    background: #ffffff;
    border-color: #d0d7de;
    box-shadow: 0 16px 48px rgba(0,0,0,0.1);
}

body.light-theme .hero h1 {
    background: linear-gradient(135deg, #0d1117 0%, #444466 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

body.light-theme .hero h1 span {
    background: linear-gradient(135deg, var(--blue) 0%, var(--green) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

body.light-theme .feature-card { box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
body.light-theme .feature-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.1); }

body.light-theme .solution-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.1); }

body.light-theme .pricing-card { box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
body.light-theme .pricing-card.featured { box-shadow: 0 4px 24px rgba(30,124,216,0.15); }

body.light-theme .form-group input,
body.light-theme .form-group select,
body.light-theme .form-group textarea {
    background: #ffffff;
    border-color: #d0d7de;
    color: #1a1a2e;
}

body.light-theme .map-card { background: #ffffff; border-color: #d0d7de; }

body.light-theme .hero-map-placeholder::before {
    background-image:
        linear-gradient(rgba(30, 124, 216, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 124, 216, 0.08) 1px, transparent 1px);
}

body.light-theme .footer { background: #f0f2f5; border-top-color: #d0d7de; }
body.light-theme .footer-col ul a:hover { color: #0d1117; }

/* Logo swap: dark bg shows white logo, light bg shows dark logo */
.logo-light-bg { display: none; }
.logo-dark-bg { display: block; }
body.light-theme .logo-dark-bg { display: none; }
body.light-theme .logo-light-bg { display: block; }

body.light-theme .comparison-table th { background: #f0f2f5; }

body.light-theme .capability-item:hover { background: #e6eaef; }

body.light-theme .cta-section::before {
    background: radial-gradient(ellipse at 50% 50%, rgba(30, 124, 216, 0.05) 0%, transparent 70%);
}

body.light-theme .page-header::before {
    background: radial-gradient(ellipse at 50% 0%, rgba(30, 124, 216, 0.04) 0%, transparent 60%);
}

/* ============================================
   THEME & LANGUAGE TOGGLE BUTTONS
   ============================================ */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 8px;
}

.theme-toggle,
.lang-toggle {
    background: var(--dark-3);
    border: 1px solid var(--dark-4);
    border-radius: 8px;
    padding: 6px 10px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-300);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.theme-toggle:hover,
.lang-toggle:hover {
    background: var(--dark-4);
    color: var(--white);
}

body.light-theme .theme-toggle,
body.light-theme .lang-toggle {
    background: #e6eaef;
    border-color: #d0d7de;
    color: #444466;
}

body.light-theme .theme-toggle:hover,
body.light-theme .lang-toggle:hover {
    background: #d0d7de;
    color: #0d1117;
}

.theme-toggle svg,
.lang-toggle svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   ENHANCED MOBILE & TABLET
   ============================================ */

/* Tablet landscape */
@media (max-width: 1024px) {
    .container { padding: 0 20px; }

    .hero-grid { gap: 40px; }
    .hero h1 { font-size: 2.6rem; }
    .hero-visual { height: 400px; }

    .features-grid { gap: 16px; }
    .feature-showcase { gap: 40px; }

    .section { padding: 72px 0; }
}

/* Tablet portrait */
@media (max-width: 768px) {
    .hero { min-height: auto; padding: 120px 0 60px; }
    .hero h1 { font-size: 2rem; }
    .hero-description { font-size: 1rem; }
    .hero-stats { gap: 24px; }
    .hero-stat-value { font-size: 1.6rem; }
    .hero-visual { height: 280px; }

    .section { padding: 56px 0; }
    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 1.8rem; }

    .feature-showcase-content h3 { font-size: 1.4rem; }

    .stats-grid { gap: 20px; }
    .stat-item h3 { font-size: 1.6rem; }

    .cta-section { padding: 56px 0; }

    .pricing-card { padding: 28px 24px; }
    .pricing-card .price { font-size: 2.2rem; }

    .page-header { padding: 110px 0 40px; }
    .page-header h1 { font-size: 1.8rem; }

    .form-card { padding: 28px 24px; }

    .comparison-table { font-size: 0.8rem; }
    .comparison-table th,
    .comparison-table td { padding: 10px 12px; }

    .footer { padding: 48px 0 24px; }
    .footer-grid { margin-bottom: 32px; }
}

/* Phone */
@media (max-width: 480px) {
    .container { padding: 0 16px; }

    h1 { font-size: 1.65rem; }
    h2 { font-size: 1.4rem; }
    h3 { font-size: 1.15rem; }

    .hero { padding: 100px 0 48px; }
    .hero h1 { font-size: 1.65rem; }
    .hero-description { font-size: 0.9rem; }
    .hero-visual { height: 220px; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-stat-value { font-size: 1.4rem; }
    .map-card { display: none; }

    .btn { padding: 12px 24px; font-size: 0.9rem; }
    .btn-lg { padding: 14px 28px; font-size: 1rem; }
    .btn-group { flex-direction: column; }
    .btn-group .btn { width: 100%; }

    .section { padding: 40px 0; }
    .section-header { margin-bottom: 28px; }

    .feature-card { padding: 24px; }
    .feature-showcase-visual { aspect-ratio: 16/10; }

    .solution-card { padding: 28px 20px; }

    .pricing-card { padding: 24px 20px; }
    .pricing-card .price { font-size: 2rem; }

    .page-header { padding: 96px 0 32px; }
    .page-header h1 { font-size: 1.5rem; }
    .page-header p { font-size: 0.95rem; }

    .contact-info-card { padding: 16px; }

    .capability-item { padding: 18px; }

    .footer-brand p { max-width: 100%; }

    .cta-section { padding: 40px 0; }
    .cta-content h2 { font-size: 1.5rem; }

    .alert-item { gap: 12px; padding: 12px 0; }

    .comparison-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* Nav mobile controls position */
@media (max-width: 1024px) {
    .nav-controls {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
    }

    .nav-links .nav-controls-mobile {
        display: flex;
        gap: 8px;
        padding: 12px 0;
        border-bottom: 1px solid var(--dark-4);
        margin-bottom: 8px;
    }
}

/* Touch-friendly: larger tap targets on mobile */
@media (max-width: 1024px) {
    .feature-link { padding: 8px 0; }
}

/* Safe area insets for notched phones */
@supports (padding: max(0px)) {
    .nav-inner { padding-left: max(24px, env(safe-area-inset-left)); padding-right: max(24px, env(safe-area-inset-right)); }
    .container { padding-left: max(24px, env(safe-area-inset-left)); padding-right: max(24px, env(safe-area-inset-right)); }
    .footer-bottom { padding-bottom: max(16px, env(safe-area-inset-bottom)); }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

/* Auto light theme from OS preference */
@media (prefers-color-scheme: light) {
    body:not(.dark-theme):not(.theme-set) {
        --dark: #ffffff;
        --dark-2: #f6f8fa;
        --dark-3: #e6eaef;
        --dark-4: #d0d7de;
        --gray-100: #1a1a2e;
        --gray-200: #2d2d44;
        --gray-300: #444466;
        --gray-400: #5c5c7a;
        --gray-500: #8b8ba3;
        --white: #0d1117;
    }
    body:not(.dark-theme):not(.theme-set) .logo-dark-bg { display: none; }
    body:not(.dark-theme):not(.theme-set) .logo-light-bg { display: block; }
    body:not(.dark-theme):not(.theme-set) .nav {
        background: rgba(255, 255, 255, 0.95);
        border-bottom-color: #d0d7de;
    }
}