/* MACHINE & MATTER | 2026 DESIGN SYSTEM */

:root {
    /* Color Palette */
    --color-bg: #F9F9F9;
    --color-surface: #FFFFFF;
    --color-text-main: #111111;
    --color-text-muted: #666666;
    --color-accent: #2F54EB;
    /* Electric Blue */
    --color-border: #E5E5E5;

    /* Typography */
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    --font-mono: "SF Mono", "Menlo", "Monaco", "Courier New", monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0A0A0A;
        --color-surface: #111111;
        --color-text-main: #FFFFFF;
        --color-text-muted: #888888;
        --color-border: #222222;
        --color-accent: #4D76FF;
    }
}

/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

img,
svg {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: 0.2s;
}

/* TYPOGRAPHY */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.display-text {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
}

.section-title {
    font-size: clamp(2rem, 3vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.mono-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 60ch;
}

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

.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

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

.border-top {
    border-top: 1px solid var(--color-border);
}

/* COMPONENTS */

/* Navigation */
.nav-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
}

@media (prefers-color-scheme: dark) {
    .nav-wrapper {
        background: rgba(10, 10, 10, 0.95);
    }
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s;
}

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

/* Mobile Menu & Hamburger */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 101;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-main);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* Mobile Nav Styles */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-150%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 99;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    }

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

    .nav-link {
        font-size: 1.25rem;
        display: block;
    }

    /* Hamburger Animation */
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-toggle.active span:nth-child(2) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* Logo */
.logo-lockup {
    display: flex;
    align-items: baseline;
    font-size: 1.25rem;
    user-select: none;
}

.logo-machine {
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo-amp {
    font-family: "Times New Roman", serif;
    font-style: italic;
    font-weight: 300;
    color: var(--color-text-muted);
    /* Fallback */
    margin: 0 2px;
}

.logo-matter {
    font-weight: 300;
    letter-spacing: 0.05em;
}

.logo-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    margin-left: 2px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    background: var(--color-text-main);
    color: var(--color-bg);
    font-weight: 600;
    border: 1px solid var(--color-text-main);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

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

/* Service Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    transition: transform 0.3s ease, border-color 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.card-num {
    font-family: var(--font-mono);
    color: var(--color-accent);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.card-desc {
    color: var(--color-text-muted);
    font-size: 1rem;
    flex-grow: 1;
}

.card-tags {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text-muted);
}

/* Form */
.form-group {
    margin-bottom: 1.5rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
    font-family: var(--font-main);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-accent);
}

.submit-wrap {
    text-align: right;
}

/* Footer */
footer {
    background: var(--color-text-main);
    color: var(--color-bg);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

@media (prefers-color-scheme: dark) {
    footer {
        background: var(--color-surface);
        color: var(--color-text-main);
        border-top: 1px solid var(--color-border);
    }
}

.footer-link {
    display: block;
    color: #888;
    margin-bottom: 0.5rem;
}

.footer-link:hover {
    color: #fff;
}

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

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