/* ==========================================================================
   ULTRALIGHT EXPERIMENTAL (ULX)
   Futuristic Cyber-Aviation Theme
   ========================================================================== */

:root {
    /* Cyber-Aviation Palette */
    --color-bg:              #0B0F19;
    --color-bg-secondary:    #131B2E;
    --color-bg-elevated:     #1A2438;
    --color-bg-card:         rgba(19, 27, 46, 0.65);
    --color-bg-hover:        rgba(26, 36, 56, 0.85);

    --color-border:          rgba(0, 229, 255, 0.12);
    --color-border-light:    rgba(255, 255, 255, 0.1);
    --color-border-accent:   rgba(42, 92, 168, 0.45);

    --color-text:            #E8ECF4;
    --color-text-muted:      #8B95A8;
    --color-text-dim:        #5A6478;

    /* Navy blue – primary brand accent */
    --color-navy:            #1B3D7A;
    --color-navy-hover:      #2A5CA8;
    --color-navy-light:      #4A7FCC;
    --color-navy-deep:       #0F2447;
    --color-navy-glow:       rgba(42, 92, 168, 0.55);

    --color-cyan:            #00E5FF;
    --color-cyan-dim:        rgba(0, 229, 255, 0.6);
    --color-cyan-glow:       rgba(0, 229, 255, 0.35);

    --color-white:           #FFFFFF;

    /* Primary accent (navy) */
    --color-accent:          var(--color-navy);
    --color-accent-hover:    var(--color-navy-hover);
    --color-accent-glow:     var(--color-navy-glow);

    /* Typography */
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Orbitron', 'Inter', sans-serif;

    /* Spacing */
    --space-xs:  0.5rem;
    --space-sm:  1rem;
    --space-md:  1.5rem;
    --space-lg:  2.5rem;
    --space-xl:  4rem;
    --space-2xl: 6rem;

    /* Layout */
    --container-max: 1280px;
    --header-height: 80px;

    /* Glass */
    --glass-bg:     rgba(19, 27, 46, 0.55);
    --glass-border: rgba(0, 229, 255, 0.15);
    --glass-blur:   12px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.7s cubic-bezier(0.16, 1, 0.3, 1);

    /* Shadows */
    --shadow-card:    0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow-primary: 0 0 30px var(--color-navy-glow), 0 0 60px rgba(27, 61, 122, 0.2);
    --shadow-glow-cyan:   0 0 30px var(--color-cyan-glow), 0 0 60px rgba(0, 229, 255, 0.1);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 229, 255, 0.06), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(27, 61, 122, 0.1), transparent);
    pointer-events: none;
    z-index: 0;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
ul { list-style: none; }

.site-main { position: relative; z-index: 1; }

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container--narrow { max-width: 800px; }

/* ==========================================================================
   Gradient Text
   ========================================================================== */

.text-gradient {
    color: var(--color-navy-light);
}

.text-gradient-cyan {
    color: var(--color-cyan);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
    .text-gradient {
        background-image: linear-gradient(135deg, var(--color-white) 0%, var(--color-navy-light) 55%, var(--color-navy) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
        -webkit-text-fill-color: transparent;
    }

    .text-gradient-cyan {
        background-image: linear-gradient(135deg, var(--color-white) 0%, var(--color-cyan) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
        -webkit-text-fill-color: transparent;
    }
}

/* ==========================================================================
   Glassmorphism
   ========================================================================== */

.glass-panel,
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}

.glass-card {
    border-radius: 4px;
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base),
                transform var(--transition-base);
}

.glass-card:hover {
    border-color: rgba(0, 229, 255, 0.3);
    box-shadow: var(--shadow-glow-cyan);
    transform: scale(1.02);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: background var(--transition-base),
                backdrop-filter var(--transition-base),
                border-color var(--transition-base);
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    background: rgba(11, 15, 25, 0.75);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom-color: var(--color-border);
}

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

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    z-index: 1001;
}

.logo-short {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    color: var(--color-navy);
    text-shadow: 0 0 20px var(--color-navy-glow);
}

.logo-full {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text-dim);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-cyan);
    box-shadow: 0 0 6px var(--color-cyan-glow);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-navy), var(--color-cyan));
    box-shadow: 0 0 8px var(--color-cyan-glow);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active { color: var(--color-text); }

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

/* Language Switcher */
.lang-switcher { position: relative; }

.lang-switcher-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.lang-switcher-btn:hover {
    border-color: var(--color-cyan);
    box-shadow: 0 0 12px var(--color-cyan-glow);
}

.lang-chevron { transition: transform var(--transition-fast); }
.lang-switcher.open .lang-chevron { transform: rotate(180deg); }

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 190px;
    background: rgba(19, 27, 46, 0.95);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 6px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
    box-shadow: var(--shadow-card);
}

.lang-switcher.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    padding: 10px 16px;
    font-size: 0.85rem;
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.lang-option.active { color: var(--color-navy); font-weight: 600; }
.lang-option.disabled { color: var(--color-text-dim); cursor: not-allowed; opacity: 0.45; }
.lang-option.disabled small { font-size: 0.72rem; }

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-navy-hover);
    transform: scale(1.02);
}

.btn-glow:hover {
    box-shadow: var(--shadow-glow-primary);
}

.btn-glow-cyan:hover {
    box-shadow: var(--shadow-glow-cyan);
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.btn-outline:hover {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
    transform: scale(1.02);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.btn-ghost:hover { color: var(--color-text); border-color: var(--color-border-light); }

.btn-sm { padding: 10px 20px; font-size: 0.75rem; }
.btn-lg { padding: 16px 40px; font-size: 0.85rem; }

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

.hero {
    position: relative;
    height: 100vh;
    min-height: 640px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 15, 25, 0.6);
}

.hero-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: linear-gradient(to bottom, transparent, black 30%, black 70%, transparent);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 920px;
    padding: 0 var(--space-md);
    margin-top: calc(var(--header-height) * 0.5);
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5em;
    color: var(--color-cyan);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-cyan);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--color-cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 7vw, 4.5rem);
    font-weight: 800;
    letter-spacing: 0.06em;
    line-height: 1.05;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.hero-tagline {
    font-family: var(--font-display);
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 580px;
    margin: 0 auto var(--space-lg);
    line-height: 1.75;
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Stats – compact badge, bottom-right on video */
.hero-stats {
    position: absolute;
    bottom: var(--space-lg);
    right: var(--space-md);
    left: auto;
    transform: none;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0;
    padding: 10px 14px;
    border-radius: 4px;
    min-width: auto;
    max-width: 340px;
    opacity: 0.88;
    pointer-events: none;
}

.hero-stat {
    flex: 0 1 auto;
    text-align: center;
    padding: 0 8px;
}

.hero-stat-label {
    display: block;
    font-size: 0.52rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    margin-bottom: 3px;
    white-space: nowrap;
}

.hero-stat-value {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-cyan);
    text-shadow: 0 0 10px var(--color-cyan-glow);
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.hero-stat-divider {
    width: 1px;
    height: 28px;
    background: linear-gradient(to bottom, transparent, var(--color-cyan), transparent);
    opacity: 0.35;
    flex-shrink: 0;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--color-text-dim);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    animation: bounce 2.5s ease-in-out infinite;
}

.hero-scroll svg { opacity: 0.5; color: var(--color-cyan); }

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%      { transform: translateX(-50%) translateY(8px); }
}

/* ==========================================================================
   Page Hero (inner pages)
   ========================================================================== */

.page-hero {
    position: relative;
    padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-xl);
    overflow: hidden;
}

.page-hero--compact { padding-bottom: var(--space-lg); }
.page-hero--legal { padding-bottom: var(--space-md); border-bottom: 1px solid var(--color-border); }

.page-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 80% at 20% 50%, rgba(27, 61, 122, 0.08), transparent),
        radial-gradient(ellipse 50% 60% at 80% 50%, rgba(0, 229, 255, 0.06), transparent),
        var(--color-bg-secondary);
    z-index: 0;
}

.page-hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
    mask-image: linear-gradient(to bottom, black, transparent);
}

.page-hero-content { position: relative; z-index: 1; }

.page-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: var(--space-sm);
}

.page-hero-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 560px;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section { padding: var(--space-2xl) 0; }

.section-header { margin-bottom: var(--space-xl); }

.section-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-navy);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    line-height: 1.15;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.85;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.stat-card {
    padding: var(--space-lg) var(--space-md);
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Split Banners */
.banner-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 520px;
}

.banner-block {
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: var(--space-xl);
    overflow: hidden;
    min-height: 520px;
    transition: transform var(--transition-slow);
}

.banner-block:hover { transform: scale(1.02); z-index: 1; }

.banner-block-bg {
    position: absolute;
    inset: 0;
    transition: transform var(--transition-slow);
}

.banner-block:hover .banner-block-bg { transform: scale(1.06); }

.banner-block--alto .banner-block-bg {
    background:
        linear-gradient(to top, rgba(11, 15, 25, 0.95) 0%, rgba(11, 15, 25, 0.3) 60%),
        linear-gradient(135deg, #131B2E 0%, #1A2840 50%, #0B0F19 100%);
}

.banner-block--engine .banner-block-bg {
    background:
        linear-gradient(to top, rgba(11, 15, 25, 0.95) 0%, rgba(11, 15, 25, 0.3) 60%),
        linear-gradient(135deg, #0F1828 0%, #1A3040 50%, #0B0F19 100%);
}

.banner-block-glow {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.banner-block--alto .banner-block-glow {
    background: radial-gradient(circle at 30% 70%, rgba(27, 61, 122, 0.15), transparent 60%);
}

.banner-block--engine .banner-block-glow {
    background: radial-gradient(circle at 70% 70%, rgba(0, 229, 255, 0.12), transparent 60%);
}

.banner-block:hover .banner-block-glow { opacity: 1; }

.banner-block-content { position: relative; z-index: 1; max-width: 460px; }

.banner-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-navy);
    margin-bottom: var(--space-sm);
}

.banner-label--cyan { color: var(--color-cyan); }

.banner-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
    line-height: 1.1;
}

.banner-text {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.banner-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-navy);
    transition: gap var(--transition-fast), text-shadow var(--transition-fast);
}

.banner-cta--cyan { color: var(--color-cyan); }

.banner-block:hover .banner-cta {
    gap: 14px;
    text-shadow: 0 0 12px var(--color-navy-glow);
}

.banner-block:hover .banner-cta--cyan {
    text-shadow: 0 0 12px var(--color-cyan-glow);
}

/* CTA Box */
.section-cta { padding: var(--space-xl) 0 var(--space-2xl); }

.cta-box {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-navy), var(--color-cyan), transparent);
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.cta-text {
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto var(--space-lg);
    font-size: 1.05rem;
}

/* ==========================================================================
   Models
   ========================================================================== */

.models-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.model-card { overflow: hidden; }

.model-card--wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; }

.model-card-visual {
    position: relative;
    height: 260px;
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
    overflow: hidden;
}

.model-card--wide .model-card-visual { height: auto; min-height: 300px; }

.model-card-visual--basic {
    background: linear-gradient(160deg, #1A2840 0%, #0B0F19 100%);
}

.model-card-visual--quick {
    background: linear-gradient(160deg, #142838 0%, #0B0F19 100%);
}

.model-card-visual--engine {
    background: linear-gradient(160deg, #1A2030 0%, #102028 50%, #0B0F19 100%);
}

.model-card-scanline {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 229, 255, 0.02) 2px,
        rgba(0, 229, 255, 0.02) 4px
    );
    pointer-events: none;
}

.model-card-badge {
    position: relative;
    z-index: 1;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-navy);
    background: rgba(11, 15, 25, 0.7);
    backdrop-filter: blur(8px);
    padding: 6px 14px;
    border: 1px solid var(--color-border-accent);
    border-radius: 2px;
}

.model-card-badge--cyan {
    color: var(--color-cyan);
    border-color: rgba(0, 229, 255, 0.35);
}

.model-card-body { padding: var(--space-lg); }

.model-card-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.model-card-text {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    line-height: 1.75;
    margin-bottom: var(--space-md);
}

.model-features { margin-bottom: var(--space-lg); }

.model-features li {
    position: relative;
    padding-left: 18px;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.model-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    background: var(--color-cyan);
    box-shadow: 0 0 6px var(--color-cyan-glow);
    border-radius: 50%;
}

.model-card:hover {
    border-color: rgba(27, 61, 122, 0.4);
    box-shadow: var(--shadow-glow-primary);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-xl);
    align-items: start;
}

.contact-info,
.contact-form-wrap { padding: var(--space-lg); }

.contact-info-title,
.contact-form-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
}

.contact-detail {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.contact-detail:last-child { border-bottom: none; }

.contact-detail-label {
    display: block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    margin-bottom: 4px;
}

.contact-link {
    color: var(--color-cyan);
    transition: text-shadow var(--transition-fast);
}

.contact-link:hover {
    text-shadow: 0 0 12px var(--color-cyan-glow);
}

.contact-address { color: var(--color-text-muted); line-height: 1.7; }

/* Contact form fields */
.contact-form {
    color-scheme: dark;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-field {
    margin-bottom: var(--space-md);
}

.form-field-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-navy-light);
    margin-bottom: 8px;
}

.form-field-input {
    display: block;
    width: 100%;
    padding: 14px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.5;
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base),
                background var(--transition-base);
}

.form-field-input::placeholder {
    color: var(--color-text-dim);
    opacity: 0.7;
}

.form-field-input:hover {
    border-color: rgba(42, 92, 168, 0.5);
    background: var(--color-bg-elevated);
}

.form-field-input:focus {
    outline: none;
    border-color: var(--color-navy-light);
    background: var(--color-bg-elevated);
    box-shadow: 0 0 0 3px rgba(42, 92, 168, 0.2), 0 0 18px var(--color-navy-glow);
}

.form-field-textarea {
    min-height: 140px;
    resize: vertical;
}

.form-field-select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 4L6 8L10 4' stroke='%234A7FCC' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 42px;
}

.form-field-select option {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

.form-field-input:-webkit-autofill,
.form-field-input:-webkit-autofill:hover,
.form-field-input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 1000px var(--color-bg-elevated) inset;
    -webkit-text-fill-color: var(--color-text);
    caret-color: var(--color-text);
    border-color: var(--color-navy-light);
}

.form-field--checkbox {
    margin-bottom: var(--space-lg);
    padding-top: var(--space-xs);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-custom {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    margin-top: 2px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
}

.checkbox-label input:checked + .checkbox-custom {
    border-color: var(--color-navy);
    background: var(--color-navy);
    box-shadow: 0 0 10px var(--color-navy-glow);
}

.checkbox-label input:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form-alert {
    padding: var(--space-sm) var(--space-md);
    border-radius: 4px;
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
}

.form-alert--success {
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.3);
    color: var(--color-cyan);
}

.form-alert--error {
    background: rgba(27, 61, 122, 0.08);
    border: 1px solid rgba(27, 61, 122, 0.3);
    color: var(--color-navy-hover);
}

/* ==========================================================================
   Legal
   ========================================================================== */

.legal-updated { font-size: 0.85rem; color: var(--color-text-dim); }

.legal-content { color: var(--color-text-muted); line-height: 1.85; }
.legal-intro { font-size: 1.05rem; margin-bottom: var(--space-lg); }

.legal-content h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--color-text);
    margin: var(--space-lg) 0 var(--space-sm);
}

.legal-content p { margin-bottom: var(--space-md); }

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

.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) 0 0;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md) var(--space-xl);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: var(--color-navy);
    text-shadow: 0 0 16px var(--color-navy-glow);
}

.footer-tagline {
    margin-top: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    max-width: 280px;
}

.footer-heading {
    font-family: var(--font-display);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    margin-bottom: var(--space-md);
}

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

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-cyan);
    text-shadow: 0 0 8px var(--color-cyan-glow);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: var(--space-md);
    text-align: center;
}

.footer-bottom p { font-size: 0.78rem; color: var(--color-text-dim); }

/* ==========================================================================
   Cookie Bar
   ========================================================================== */

.cookie-bar {
    position: fixed;
    bottom: var(--space-md);
    left: var(--space-md);
    right: var(--space-md);
    z-index: 9999;
    border-radius: 6px;
    transform: translateY(0);
    opacity: 1;
    transition: transform var(--transition-base), opacity var(--transition-base);
    overflow: hidden;
}

.cookie-bar.hidden {
    transform: translateY(calc(100% + var(--space-md) * 2));
    opacity: 0;
    pointer-events: none;
}

.cookie-bar-glow {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-navy), transparent);
    box-shadow: 0 0 20px var(--color-navy-glow);
}

.cookie-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    flex-wrap: wrap;
}

.cookie-text {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    flex: 1;
    min-width: 260px;
}

.cookie-link {
    color: var(--color-cyan);
    text-decoration: underline;
    margin-left: 4px;
}

.cookie-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}

/* ==========================================================================
   Scroll Reveal (.reveal → .active)
   ========================================================================== */

/* Scroll Reveal – visible by default, animated when JS runs */
.reveal {
    opacity: 1;
    transform: none;
}

html.js-enabled .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

html.js-enabled .reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Hero content visible immediately on load */
.hero .hero-content.reveal {
    opacity: 1;
    transform: none;
}

.hero .hero-content.reveal.active {
    animation: heroFadeIn 1.2s var(--transition-slow) both;
}

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Engines Page
   ========================================================================== */

.engines-intro-text {
    max-width: 900px;
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.85;
}

.engines-subheading {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    color: var(--color-text-muted);
    max-width: 640px;
    margin-top: var(--space-sm);
    line-height: 1.7;
}

.engine-spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.engine-spec-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.engine-spec-card:hover {
    transform: scale(1.02);
}

.engine-spec-visual {
    position: relative;
    height: 260px;
    overflow: hidden;
}

.engine-spec-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.engine-spec-card:hover .engine-spec-visual img {
    transform: scale(1.05);
}

.engine-spec-visual .model-card-badge {
    position: absolute;
    bottom: var(--space-md);
    left: var(--space-md);
    z-index: 1;
}

.engine-spec-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.engine-spec-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.engine-spec-text {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    line-height: 1.75;
    margin-bottom: var(--space-md);
}

.engine-spec-stats {
    margin-bottom: var(--space-lg);
}

.engine-spec-stats li {
    position: relative;
    padding-left: 16px;
    font-size: 0.88rem;
    color: var(--color-cyan);
    margin-bottom: 6px;
    font-weight: 500;
}

.engine-spec-stats li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--color-navy-light);
    border-radius: 50%;
}

.engine-benefits-box {
    padding: var(--space-xl);
}

.engine-benefits-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 24px;
}

.engine-benefits-list li {
    position: relative;
    padding-left: 18px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.engine-benefits-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    background: var(--color-cyan);
    box-shadow: 0 0 6px var(--color-cyan-glow);
    border-radius: 50%;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
}

.gallery-item {
    position: relative;
    aspect-ratio: 4 / 3;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    background: var(--color-bg-elevated);
    transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.gallery-item:hover {
    border-color: var(--color-navy-light);
    transform: scale(1.03);
    box-shadow: var(--shadow-glow-primary);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.section-gallery--chassis {
    background: rgba(19, 27, 46, 0.35);
}

/* Videos */
.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.video-card {
    overflow: hidden;
    padding: 0;
}

.video-card:hover {
    transform: none;
}

.video-player {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    background: var(--color-bg);
    object-fit: cover;
}

.video-caption {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
}

.video-placeholder {
    grid-column: 1 / -1;
    padding: var(--space-xl);
    text-align: center;
    color: var(--color-text-muted);
}

.video-placeholder code {
    display: block;
    margin-top: var(--space-sm);
    font-size: 0.8rem;
    color: var(--color-cyan);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.lightbox[hidden] {
    display: none;
}

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(11, 15, 25, 0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
}

.lightbox-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    max-width: 100%;
    max-height: 100%;
    pointer-events: none;
}

.lightbox-inner > * {
    pointer-events: auto;
}

.lightbox-stage {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: min(1100px, 92vw);
    max-height: 85vh;
    touch-action: pan-y pinch-zoom;
}

.lightbox-img {
    max-width: min(1100px, 92vw);
    max-height: 85vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: var(--shadow-card);
    user-select: none;
    -webkit-user-drag: none;
}

.lightbox-close {
    position: fixed;
    top: max(var(--space-md), env(safe-area-inset-top, 0px));
    right: max(var(--space-md), env(safe-area-inset-right, 0px));
    z-index: 10002;
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-border-light);
    border-radius: 50%;
    background: rgba(19, 27, 46, 0.9);
    backdrop-filter: blur(8px);
    color: var(--color-text);
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-card);
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
    outline: none;
}

.lightbox-nav {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: rgba(19, 27, 46, 0.85);
    backdrop-filter: blur(8px);
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.lightbox-nav:hover,
.lightbox-nav:focus-visible {
    border-color: var(--color-navy-light);
    color: var(--color-cyan);
    outline: none;
    transform: scale(1.05);
}

.lightbox-nav[hidden] {
    display: none;
}

.lightbox-counter {
    position: fixed;
    bottom: max(var(--space-md), env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 10002;
    padding: 8px 16px;
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
    background: rgba(19, 27, 46, 0.85);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    backdrop-filter: blur(8px);
}

.lightbox-counter[hidden] {
    display: none;
}

/* Models engines teaser */
.models-engines-teaser {
    margin-top: var(--space-xl);
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.models-engines-teaser:hover {
    transform: scale(1.01);
}

.models-engines-teaser-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.models-engines-teaser-text {
    color: var(--color-text-muted);
    max-width: 600px;
    line-height: 1.7;
}

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

@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; }
    .banner-split { grid-template-columns: 1fr; }
    .model-card--wide { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .engine-spec-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .engine-benefits-list { grid-template-columns: 1fr; }
    .video-grid { grid-template-columns: 1fr; }
    .hero-stats {
        bottom: var(--space-md);
        right: var(--space-sm);
        max-width: 280px;
        padding: 8px 10px;
    }

    .hero-stat { padding: 0 6px; }

    .hero-stat-label { font-size: 0.48rem; }

    .hero-stat-value { font-size: 0.7rem; }

    .hero-stat-divider { height: 22px; }
}

@media (max-width: 768px) {
    :root { --header-height: 70px; }

    .nav-toggle { display: flex; }

    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        max-width: 320px;
        height: 100vh;
        background: rgba(19, 27, 46, 0.97);
        backdrop-filter: blur(var(--glass-blur));
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        padding: var(--space-2xl) var(--space-lg);
        gap: var(--space-xl);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        border-left: 1px solid var(--color-border);
    }

    .main-nav.open { transform: translateX(0); }
    .nav-list { flex-direction: column; align-items: flex-start; gap: var(--space-md); }
    .nav-link { font-size: 1rem; }

    .about-stats { grid-template-columns: 1fr; }
    .models-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }

    .cookie-bar { left: var(--space-sm); right: var(--space-sm); bottom: var(--space-sm); }
    .cookie-bar-inner { flex-direction: column; align-items: stretch; }
    .cookie-actions { justify-content: flex-end; }

    .hero-actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 280px; }

    .hero-stats {
        bottom: 56px;
        right: var(--space-sm);
        max-width: 240px;
        padding: 6px 8px;
    }

    .hero-stat-label { font-size: 0.45rem; letter-spacing: 0.1em; }

    .hero-stat-value { font-size: 0.65rem; }

    .hero-stat-divider { height: 20px; }

    .hero {
        flex-direction: column;
        justify-content: center;
        padding-bottom: var(--space-md);
        height: auto;
        min-height: 100vh;
    }

    .models-engines-teaser { flex-direction: column; align-items: flex-start; }

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

    .lightbox-inner {
        gap: 6px;
        width: 100%;
    }

    .lightbox-nav {
        position: fixed;
        top: 50%;
        transform: translateY(-50%);
        z-index: 10001;
        width: 44px;
        height: 44px;
        background: rgba(19, 27, 46, 0.92);
    }

    .lightbox-prev {
        left: max(8px, env(safe-area-inset-left, 0px));
    }

    .lightbox-next {
        right: max(8px, env(safe-area-inset-right, 0px));
    }

    .lightbox-nav:hover,
    .lightbox-nav:focus-visible {
        transform: translateY(-50%) scale(1.05);
    }

    .lightbox-stage {
        max-width: 100vw;
        max-height: 78vh;
        padding: 0 52px;
    }

    .lightbox-img {
        max-width: 100%;
        max-height: 78vh;
    }

    .lightbox-close {
        width: 52px;
        height: 52px;
        font-size: 2rem;
    }

    .hero-scroll { display: none; }
}

@media (max-width: 480px) {
    .logo-full { display: none; }
    .section { padding: var(--space-xl) 0; }
    .banner-block { min-height: 400px; padding: var(--space-lg); }
}