/* ===================================
   TouchMachines - Redesign 2026
   =================================== */

/* CSS Variables */
:root {
    --color-primary: #FF2600;
    --color-primary-dark: #cc1f00;
    --color-secondary: #ffffff;
    --color-text: #f0ebe3;
    --color-text-muted: #9a958e;
    --color-bg: #0a0a0a;
    --color-bg-deep: #050505;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-bg-card-hover: rgba(255, 255, 255, 0.06);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 38, 0, 0.4);

    --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Syne', 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 10rem;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition: 0.3s var(--ease-out);
    --transition-slow: 0.6s var(--ease-out);

    --radius: 6px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.7);
    --glow: 0 0 30px rgba(255, 38, 0, 0.15);
    --glow-strong: 0 0 60px rgba(255, 38, 0, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

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

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

h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container--wide {
    max-width: 1400px;
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: transform 0.4s var(--ease-out);
}

.nav.scroll-down {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-primary);
    transition: var(--transition);
}

.nav-logo:hover {
    text-shadow: var(--glow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    transition: var(--transition);
    position: relative;
    text-transform: lowercase;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 22px;
    height: 1.5px;
    background: var(--color-text);
    transition: var(--transition);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: var(--spacing-2xl) var(--spacing-md);
    overflow: hidden;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255, 38, 0, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 38, 0, 0.03) 0%, transparent 50%),
        var(--color-bg-deep);
}

.hero-animation {
    position: absolute;
    top: 50%;
    left: 5%;
    transform: translateY(-50%);
    width: 500px;
    max-width: 40%;
    height: auto;
    z-index: 0;
}

.hero-animation img {
    width: 100%;
    height: auto;
    object-fit: contain;
    opacity: 0.5;
    filter: brightness(0.7) saturate(1.2);
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 10vw, 7rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: heroReveal 1s var(--ease-out) 0.2s forwards;
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-muted);
    letter-spacing: 1px;
    text-transform: lowercase;
    opacity: 0;
    animation: heroReveal 1s var(--ease-out) 0.5s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: heroReveal 1s var(--ease-out) 0.8s forwards;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    text-transform: lowercase;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--glow);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    border-color: var(--color-text-muted);
    background: var(--color-bg-card);
}

.btn-text {
    padding: 0;
    border: none;
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

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

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -1px;
}

.section-header p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    letter-spacing: 0.5px;
}

/* Page Header (shared across subpages) */
.page-header {
    padding: calc(64px + var(--spacing-xl)) var(--spacing-md) var(--spacing-lg);
    text-align: center;
    position: relative;
    background:
        radial-gradient(ellipse at 50% 80%, rgba(255, 38, 0, 0.05) 0%, transparent 60%),
        var(--color-bg-deep);
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -1px;
}

.page-header p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    letter-spacing: 0.5px;
}

/* ===================================
   Philosophy Strip (Homepage)
   =================================== */
.philosophy {
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    background:
        radial-gradient(ellipse at 50% 0%, rgba(255, 38, 0, 0.03) 0%, transparent 70%),
        var(--color-bg);
}

.philosophy-text {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    line-height: 1.4;
    max-width: 800px;
    margin: 0 auto;
    letter-spacing: -0.5px;
}

.philosophy-text span {
    color: var(--color-primary);
}

/* ===================================
   Instrument Showcase (Homepage)
   =================================== */
.showcase {
    padding: 0;
}

.showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 80vh;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--color-border);
}

.showcase-item:nth-child(even) {
    direction: rtl;
}

.showcase-item:nth-child(even) > * {
    direction: ltr;
}

.showcase-image {
    position: relative;
    overflow: hidden;
    background: var(--color-bg-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.showcase-image img {
    width: 100%;
    max-width: 600px;
    height: auto;
    object-fit: contain;
    transition: transform 0.8s var(--ease-out);
}

.showcase-item:hover .showcase-image img {
    transform: scale(1.02);
}

.showcase-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    position: relative;
}

.showcase-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.showcase-content h3 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -1px;
}

.showcase-tagline {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.showcase-specs {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.showcase-spec {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    letter-spacing: 0.5px;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-bg-deep);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
    max-width: 300px;
    line-height: 1.6;
}

.footer-section h4 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

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

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

.footer-section a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--color-text);
}

.footer-contact-email {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-primary);
    transition: var(--transition);
    margin-bottom: var(--spacing-xs);
}

.footer-contact-email:hover {
    color: var(--color-text);
}

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

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    color: var(--color-text-muted);
}

.social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.footer-bottom p {
    font-family: var(--font-mono);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

/* ===================================
   Scroll Reveal Animations
   =================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===================================
   Keyframes
   =================================== */
@keyframes heroReveal {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 1024px) {
    .showcase-item {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .showcase-item:nth-child(even) {
        direction: ltr;
    }

    .showcase-image {
        aspect-ratio: 16 / 10;
        padding: var(--spacing-md);
    }

    .showcase-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-lg) var(--spacing-md);
        gap: 0;
        transition: opacity 0.3s var(--ease-out), visibility 0.3s;
        opacity: 0;
        visibility: hidden;
    }

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

    .nav-menu li {
        border-bottom: 1px solid var(--color-border);
    }

    .nav-link {
        display: block;
        padding: var(--spacing-sm) 0;
        font-size: 1rem;
    }

    .nav-link.active::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        min-height: calc(100vh - 64px);
        padding-top: calc(64px + var(--spacing-lg));
    }

    .hero-animation {
        width: 200px;
        max-width: 40%;
        left: 2%;
        opacity: 0.3;
    }

    .showcase-image {
        aspect-ratio: 4 / 3;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Performance */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-animation {
        display: none;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

@media (prefers-reduced-data: reduce) {
    .hero-animation {
        display: none;
    }
}