/* Luna Logistics Styles */
/* Brand: Industrial minimalism. Monochrome. Dieter Rams meets OP-XY. */

/* ================================
   CSS Custom Properties
   ================================ */
:root {
    /* Colors - Monochrome Spectrum */
    --void-black: #0A0A0A;
    --charcoal: #1A1A1A;
    --graphite: #2D2D2D;
    --steel: #4A4A4A;
    --concrete: #7A7A7A;
    --fog: #B8B8B8;
    --ash: #E5E5E5;
    --bone: #F5F5F5;
    --paper-white: #FAFAFA;

    /* Semantic Colors */
    --bg-primary: var(--charcoal);
    --bg-secondary: var(--graphite);
    --text-primary: var(--paper-white);
    --text-secondary: var(--fog);
    --text-muted: var(--concrete);
    --border-color: var(--graphite);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Layout */
    --container-width: 1200px;
    --header-height: 72px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

body.loading {
    overflow: hidden;
}

body.menu-open {
    overflow: hidden;
}

/* Hide default cursor on desktop when custom cursor is active */
@media (pointer: fine) {
    body:not(.touch-device) {
        cursor: none;
    }

    body:not(.touch-device) a,
    body:not(.touch-device) button,
    body:not(.touch-device) input,
    body:not(.touch-device) textarea,
    body:not(.touch-device) [role="button"] {
        cursor: none;
    }
}

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

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

/* ================================
   Custom Cursor
   ================================ */
.cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    background: var(--paper-white);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    mix-blend-mode: difference;
    transform: translate(-50%, -50%) scale(0.3);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
    opacity: 0;
    will-change: transform;
}

.cursor.visible {
    opacity: 1;
}

.cursor.hover {
    transform: translate(-50%, -50%) scale(1);
}

.cursor.click {
    transform: translate(-50%, -50%) scale(0.25);
}

.cursor-trail {
    position: fixed;
    top: 0;
    left: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity var(--transition-base);
    /* Use box-shadow instead of border for smoother anti-aliasing */
    background: transparent;
    box-shadow: inset 0 0 0 1.5px rgba(250, 250, 250, 0.5);
    will-change: transform, left, top;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.cursor-trail.visible {
    opacity: 1;
}

/* Mobile tap ripple */
.tap-ripple {
    position: fixed;
    width: 40px;
    height: 40px;
    border: 2px solid var(--paper-white);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
}

.tap-ripple.active {
    animation: ripple 0.6s ease-out forwards;
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}

/* ================================
   Loader
   ================================ */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--void-black);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 600ms ease, visibility 600ms ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-mark {
    width: 48px;
    height: 48px;
    color: var(--paper-white);
}

.loader-mark svg {
    animation: loaderPulse 1.2s ease-in-out infinite;
}

@keyframes loaderPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.95);
    }
}

/* ================================
   Grain Overlay
   ================================ */
.grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9997;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ================================
   Sequencer Background (OP-XY Inspired)
   ================================ */
.sequencer-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.sequencer-grid {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(var(--grid-cols, 16), 1fr);
    grid-template-rows: repeat(var(--grid-rows, 12), 1fr);
    gap: 2px;
    padding: 20px;
    opacity: 0.15;
}

.sequencer-cell {
    background: var(--steel);
    border-radius: 1px;
    transition: background 0.3s ease, opacity 0.3s ease;
    opacity: 0.3;
}

.sequencer-cell.active {
    background: var(--paper-white);
    opacity: 1;
}

.sequencer-cell.pulse {
    animation: cellPulse 0.4s ease-out;
}

@keyframes cellPulse {
    0% {
        opacity: 1;
        background: var(--paper-white);
    }
    100% {
        opacity: 0.3;
        background: var(--steel);
    }
}

/* Ambient glow layer */
.sequencer-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at var(--glow-x, 50%) var(--glow-y, 50%),
        rgba(250, 250, 250, 0.03) 0%,
        transparent 50%
    );
    transition: background 0.5s ease;
}

/* ================================
   Scroll Progress
   ================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--paper-white);
    z-index: 1001;
    transform-origin: left;
}

/* ================================
   Container
   ================================ */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    position: relative;
    z-index: 1;
}

/* ================================
   Header
   ================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;
    background: transparent;
    transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(12px);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.logo-mark {
    width: 28px;
    height: 28px;
    transition: transform var(--transition-base);
}

.logo:hover .logo-mark {
    transform: rotate(90deg);
}

.logo-text {
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.nav-links a {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--paper-white);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-base);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: none;
    padding: 4px;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: transform var(--transition-base), opacity var(--transition-base);
    transform-origin: center;
}

.menu-toggle.active span:first-child {
    transform: translateY(4px) rotate(45deg);
}

.menu-toggle.active span:last-child {
    transform: translateY(-4px) rotate(-45deg);
}

/* ================================
   Buttons
   ================================ */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    cursor: none;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-base);
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--void-black);
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: var(--paper-white);
    color: var(--void-black);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(250, 250, 250, 0.15);
}

.btn-primary:hover::before {
    transform: translateY(0);
}

.btn-primary:hover {
    color: var(--paper-white);
}

.btn-primary:active {
    transform: translateY(0);
}

/* ================================
   Hero
   ================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-4xl) var(--space-lg);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(250, 250, 250, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(250, 250, 250, 0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

/* Animated grid lines */
.hero-scanline {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-white), transparent);
    opacity: 0.1;
    animation: scanline 8s linear infinite;
}

@keyframes scanline {
    0% { top: 0; opacity: 0; }
    5% { opacity: 0.1; }
    95% { opacity: 0.1; }
    100% { top: 100%; opacity: 0; }
}

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

.hero-headline {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards 0.3s;
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.5s;
}

.hero .btn {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.7s;
}

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

/* ================================
   Sections
   ================================ */
.section {
    position: relative;
    padding: var(--space-4xl) 0;
}

.section-alt {
    background: var(--graphite);
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-muted);
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.section-number.visible {
    opacity: 1;
    transform: translateX(0);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    transition-delay: 0.1s;
}

.section-title.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.service-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--graphite);
    border: 1px solid var(--steel);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(250, 250, 250, 0.02) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--concrete);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

.service-number {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    transition: color var(--transition-base);
}

.service-card:hover .service-number {
    color: var(--paper-white);
}

.service-title {
    font-size: 1.125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.service-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ================================
   Process
   ================================ */
.process-grid {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
}

.process-step {
    flex: 1;
    text-align: center;
}

.process-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1.5px solid var(--steel);
    border-radius: 2px;
    margin-bottom: var(--space-md);
    transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
}

.process-step:hover .process-number {
    border-color: var(--paper-white);
    color: var(--void-black);
    background: var(--paper-white);
}

.process-title {
    font-size: 1.25rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.process-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.process-connector {
    position: relative;
    flex: 0 0 48px;
    height: 2px;
    background: var(--steel);
    margin-top: 60px;
    overflow: hidden;
}

.process-connector::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 8px;
    height: 100%;
    background: var(--paper-white);
    animation: connectorPulse 2s ease-in-out infinite;
}

@keyframes connectorPulse {
    0%, 100% { transform: translateX(-8px); opacity: 0; }
    50% { transform: translateX(48px); opacity: 1; }
}

/* ================================
   Clients
   ================================ */
.clients-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-3xl);
}

.testimonials {
    display: grid;
    gap: var(--space-2xl);
    max-width: 700px;
}

.testimonial {
    position: relative;
    padding-left: var(--space-xl);
    border-left: 2px solid var(--steel);
    transition: border-color var(--transition-base);
}

.testimonial::before {
    content: '';
    position: absolute;
    left: -2px;
    top: 0;
    width: 2px;
    height: 0;
    background: var(--paper-white);
    transition: height var(--transition-slow);
}

.testimonial.visible::before {
    height: 100%;
}

.testimonial p {
    font-size: 1.125rem;
    font-style: italic;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.testimonial cite {
    font-size: 0.875rem;
    font-style: normal;
    color: var(--text-muted);
}

/* ================================
   About
   ================================ */
.about-content {
    max-width: 650px;
}

.about-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-tagline {
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    display: inline;
    background: linear-gradient(90deg, var(--paper-white) 50%, transparent 50%);
    background-size: 200% 100%;
    background-position: 100% 0;
    -webkit-background-clip: text;
    background-clip: text;
    transition: background-position 0.5s ease;
}

.about-tagline.visible {
    background-position: 0 0;
}

/* ================================
   Contact
   ================================ */
.contact-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.contact-form {
    max-width: 500px;
}

.form-group {
    position: relative;
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.form-group:focus-within label {
    color: var(--paper-white);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--graphite);
    border: 1px solid var(--steel);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--paper-white);
    box-shadow: 0 0 0 1px var(--paper-white);
}

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

/* Input focus line animation */
.form-group::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--paper-white);
    transition: width var(--transition-base);
}

.form-group:focus-within::after {
    width: 100%;
}

.contact-form .btn {
    width: 100%;
    margin-top: var(--space-md);
}

.contact-alt {
    margin-top: var(--space-xl);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.contact-alt a {
    color: var(--text-secondary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}

.contact-alt a:hover {
    color: var(--paper-white);
}

/* ================================
   Footer
   ================================ */
.footer {
    padding: var(--space-3xl) 0;
    border-top: 1px solid var(--graphite);
}

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

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.footer-logo .logo-mark {
    width: 24px;
    height: 24px;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.footer-contact {
    margin-bottom: var(--space-md);
}

.footer-contact a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-contact a:hover {
    color: var(--paper-white);
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ================================
   Mobile Styles
   ================================ */
@media (max-width: 768px) {
    .cursor,
    .cursor-trail {
        display: none;
    }

    .menu-toggle {
        display: flex;
        cursor: pointer;
    }

    .nav-links {
        position: fixed;
        inset: 0;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-xl);
        background: var(--void-black);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 1.5rem;
        cursor: pointer;
    }

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

    .process-grid {
        flex-direction: column;
        gap: var(--space-2xl);
    }

    .process-connector {
        width: 2px;
        height: 32px;
        flex: 0 0 auto;
        margin: 0 auto;
    }

    .process-connector::after {
        width: 100%;
        height: 8px;
        animation: connectorPulseMobile 2s ease-in-out infinite;
    }

    @keyframes connectorPulseMobile {
        0%, 100% { transform: translateY(-8px); opacity: 0; }
        50% { transform: translateY(32px); opacity: 1; }
    }

    .section {
        padding: var(--space-3xl) 0;
    }

    .section-header {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

/* ================================
   Scroll Animations
   ================================ */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .process-step,
    .testimonial,
    .about-content p {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .service-card.visible,
    .process-step.visible,
    .testimonial.visible,
    .about-content p.visible {
        opacity: 1;
        transform: translateY(0);
    }

    /* Staggered animation for service cards */
    .service-card:nth-child(1) { transition-delay: 0s; }
    .service-card:nth-child(2) { transition-delay: 0.1s; }
    .service-card:nth-child(3) { transition-delay: 0.2s; }
    .service-card:nth-child(4) { transition-delay: 0.3s; }

    /* Staggered animation for process steps */
    .process-step:nth-child(1) { transition-delay: 0s; }
    .process-step:nth-child(3) { transition-delay: 0.15s; }
    .process-step:nth-child(5) { transition-delay: 0.3s; }
}

/* ================================
   Magnetic Button Effect (Desktop)
   ================================ */
@media (pointer: fine) {
    .btn {
        --magnetic-x: 0;
        --magnetic-y: 0;
        transform: translate(calc(var(--magnetic-x) * 1px), calc(var(--magnetic-y) * 1px));
    }
}