/* ============================================
   GREY BIONICS — STRUCTURAL BRUTALISM
   Design System + Full Styles
   ============================================ */

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

:root {
    /* Palette */
    --beige: #F5F0E8;
    --beige-dark: #E8E0D4;
    --grey-light: #D4D0C8;
    --grey-mid: #8A8578;
    --charcoal: #2D2D2D;
    --near-black: #1A1A1A;
    --accent: #C4572A;
    --accent-hover: #A8461F;
    --accent-subtle: rgba(196, 87, 42, 0.08);
    --electric: #3D7BF7;
    --electric-subtle: rgba(61, 123, 247, 0.08);
    --white: #FAFAF7;
    --success: #4A7C59;

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'IBM Plex Mono', monospace;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 10rem;

    /* Borders */
    --border: 3px solid var(--charcoal);
    --border-light: 2px solid var(--grey-light);
    --border-accent: 3px solid var(--accent);

    /* Transitions */
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --duration: 0.4s;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--beige);
    color: var(--charcoal);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

::selection {
    background-color: var(--accent);
    color: var(--white);
}

/* --- UTILITIES --- */
.accent {
    color: var(--accent);
}

.status--active {
    color: var(--success);
}

/* --- REVEAL ANIMATION --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* Stagger children */
.reveal:nth-child(2) {
    transition-delay: 0.1s;
}

.reveal:nth-child(3) {
    transition-delay: 0.2s;
}

.reveal:nth-child(4) {
    transition-delay: 0.3s;
}

.reveal:nth-child(5) {
    transition-delay: 0.4s;
}

.reveal:nth-child(6) {
    transition-delay: 0.5s;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(245, 240, 232, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--border);
    transition: transform var(--duration) var(--ease);
}

.nav__inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    list-style: none;
}

.nav__links a {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    padding: 0.25rem 0;
    transition: color var(--duration) var(--ease);
}

.nav__links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width var(--duration) var(--ease);
}

.nav__links a:hover::after {
    width: 100%;
}

.nav__links a:hover {
    color: var(--accent);
}

.nav__cta {
    background-color: var(--charcoal) !important;
    color: var(--beige) !important;
    padding: 0.6rem 1.4rem !important;
    border: var(--border);
    font-weight: 600 !important;
    transition: background-color var(--duration) var(--ease), transform 0.2s var(--ease) !important;
}

.nav__cta:hover {
    background-color: var(--accent) !important;
    transform: translate(-2px, -2px);
}

.nav__cta::after {
    display: none !important;
}

/* Mobile toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav__toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--charcoal);
    transition: all 0.3s var(--ease);
}

.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: calc(80px + var(--space-lg)) var(--space-md) var(--space-lg);
    overflow: hidden;
}

.hero__grid {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-lg);
    align-items: end;
}

.hero__label {
    font-family: var(--font-body);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    color: var(--grey-mid);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(3.5rem, 8vw, 8rem);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.hero__title--accent {
    color: var(--accent);
    position: relative;
    display: inline-block;
}

.hero__title--accent::after {
    content: '';
    position: absolute;
    bottom: 0.1em;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--accent);
    opacity: 0.3;
}

.hero__tagline {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--grey-mid);
    max-width: 600px;
    margin-bottom: var(--space-lg);
    border-left: var(--border-accent);
    padding-left: var(--space-sm);
}

.hero__actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.hero__meta {
    border-left: var(--border);
    padding-left: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.hero__meta-block {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.hero__meta-label {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--grey-mid);
    text-transform: uppercase;
}

.hero__meta-value {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* Grid overlay */
.hero__grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(45, 45, 45, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(45, 45, 45, 0.04) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: -1;
}

/* Animated dots on hero grid intersections */
.hero__grid-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(61, 123, 247, 0.15) 1.5px, transparent 1.5px);
    background-size: 80px 80px;
    background-position: 0 0;
    animation: gridPulse 4s ease-in-out infinite;
}

@keyframes gridPulse {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 1;
    }
}

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 1rem 2rem;
    border: var(--border);
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    position: relative;
}

.btn--primary {
    background-color: var(--charcoal);
    color: var(--beige);
}

.btn--primary:hover {
    background-color: var(--accent);
    transform: translate(-3px, -3px);
    box-shadow: 3px 3px 0 var(--charcoal);
}

.btn--outline {
    background-color: transparent;
    color: var(--charcoal);
}

.btn--outline:hover {
    background-color: var(--charcoal);
    color: var(--beige);
    transform: translate(-3px, -3px);
    box-shadow: 3px 3px 0 var(--accent);
}

.btn--full {
    width: 100%;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--space-md);
}

.section__index {
    font-family: var(--font-body);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--accent);
    font-weight: 600;
}

.section__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.section__line {
    flex: 1;
    height: 3px;
    background-color: var(--charcoal);
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: var(--space-2xl) 0;
    background-color: var(--beige);
}

.services__grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.service-card {
    border: var(--border);
    padding: var(--space-lg) var(--space-md);
    position: relative;
    overflow: hidden;
    transition: background-color var(--duration) var(--ease), transform 0.2s var(--ease);
    margin-top: -3px;
    margin-left: -3px;
}

.service-card:hover {
    background-color: var(--near-black);
    color: var(--beige);
    z-index: 2;
    transform: translate(-4px, -4px);
    box-shadow: 4px 4px 0 var(--accent), 0 0 30px rgba(61, 123, 247, 0.08);
}

.service-card__index {
    font-family: var(--font-body);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--grey-mid);
    display: block;
    margin-bottom: var(--space-sm);
}

.service-card:hover .service-card__index {
    color: var(--accent);
}

.service-card__icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    color: var(--accent);
    line-height: 1;
}

.service-card__title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}

.service-card__desc {
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--grey-mid);
    margin-bottom: var(--space-md);
}

.service-card:hover .service-card__desc {
    color: var(--grey-light);
}

.service-card__tag {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    padding: 0.3rem 0.8rem;
    border: 2px solid var(--grey-light);
    display: inline-block;
    text-transform: uppercase;
}

.service-card:hover .service-card__tag {
    border-color: var(--accent);
    color: var(--accent);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    padding: var(--space-2xl) 0;
    background-color: var(--near-black);
    color: var(--beige);
}

.about .section__header {
    margin-bottom: var(--space-xl);
}

.about .section__index {
    color: var(--accent);
}

.about .section__title {
    color: var(--beige);
}

.about .section__line {
    background-color: var(--beige);
    opacity: 0.2;
}

.about__grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.about__statement {
    grid-column: 1 / -1;
    border-left: var(--border-accent);
    padding-left: var(--space-md);
}

.about__quote {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.5vw, 3rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.about__body p {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--grey-light);
    margin-bottom: var(--space-sm);
}

.about__body strong {
    color: var(--beige);
    font-weight: 600;
}

/* --- Terminal Block (About section) --- */
.about__terminal {
    grid-column: 1 / -1;
}

.terminal-block {
    border: 2px solid rgba(245, 240, 232, 0.15);
    overflow: hidden;
    font-family: var(--font-body);
}

.terminal-block__header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background-color: rgba(245, 240, 232, 0.06);
    border-bottom: 1px solid rgba(245, 240, 232, 0.1);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(245, 240, 232, 0.2);
}

.terminal-dot:first-child {
    background-color: #FF5F56;
}

.terminal-dot:nth-child(2) {
    background-color: #FFBD2E;
}

.terminal-dot:nth-child(3) {
    background-color: #27C93F;
}

.terminal-block__title {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--grey-mid);
    text-transform: uppercase;
    margin-left: auto;
}

.terminal-block__body {
    padding: 1.5rem;
}

.terminal-block__body p {
    font-size: 0.9rem;
    line-height: 2.2;
    color: var(--grey-light);
    letter-spacing: 0.02em;
}

.terminal-prompt {
    color: var(--electric);
    font-weight: 600;
    margin-right: 0.5rem;
}

.terminal-success {
    color: var(--success);
    font-weight: 600;
}

/* ============================================
   PROCESS
   ============================================ */
.process {
    padding: var(--space-2xl) 0;
    background-color: var(--beige-dark);
}

.process__grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.process-step {
    border: var(--border);
    padding: var(--space-lg) var(--space-md);
    position: relative;
    margin-left: -3px;
    transition: background-color var(--duration) var(--ease);
}

.process-step:first-child {
    margin-left: 0;
}

.process-step:hover {
    background-color: var(--beige);
}

.process-step__number {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    color: rgba(45, 45, 45, 0.08);
    display: block;
    margin-bottom: var(--space-sm);
    transition: color var(--duration) var(--ease);
}

.process-step:hover .process-step__number {
    color: var(--accent);
    opacity: 0.3;
}

.process-step__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-sm);
}

.process-step__desc {
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--grey-mid);
}

.process-step__line {
    position: absolute;
    bottom: var(--space-md);
    left: var(--space-md);
    right: var(--space-md);
    height: 3px;
    background-color: var(--charcoal);
    opacity: 0.1;
    transition: opacity var(--duration) var(--ease), background-color var(--duration) var(--ease);
}

.process-step:hover .process-step__line {
    opacity: 1;
    background-color: var(--accent);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: var(--space-2xl) 0;
    background-color: var(--beige);
}

.contact__grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.contact__heading {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.contact__desc {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--grey-mid);
    margin-bottom: var(--space-lg);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact__detail {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact__detail-label {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--grey-mid);
}

.contact__detail-value {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    transition: color var(--duration) var(--ease);
}

a.contact__detail-value:hover {
    color: var(--accent);
}

/* Form */
.contact__form {
    border: var(--border);
    padding: var(--space-lg);
    background-color: var(--white);
}

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

.form__label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--grey-mid);
    margin-bottom: var(--space-xs);
    font-weight: 600;
}

.form__input {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.9rem;
    padding: 0.8rem 1rem;
    border: var(--border-light);
    background-color: var(--beige);
    color: var(--charcoal);
    transition: border-color var(--duration) var(--ease), background-color var(--duration) var(--ease);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 0;
}

.form__input:focus {
    border-color: var(--accent);
    background-color: var(--white);
}

.form__input::placeholder {
    color: var(--grey-mid);
    opacity: 0.6;
}

.form__select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%238A8578'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__status {
    margin-top: var(--space-sm);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.form__status--success {
    color: var(--success);
}

.form__status--error {
    color: var(--accent);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--near-black);
    color: var(--beige);
    border-top: var(--border);
    border-color: var(--charcoal);
}

.footer__inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

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

.footer__logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.footer__tagline {
    font-size: 0.8rem;
    color: var(--grey-mid);
    margin-top: 0.25rem;
}

.footer__links {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(245, 240, 232, 0.1);
}

.footer__links a {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--grey-mid);
    transition: color var(--duration) var(--ease);
}

.footer__links a:hover {
    color: var(--accent);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    color: var(--grey-mid);
    letter-spacing: 0.1em;
}

.footer__built {
    color: var(--accent);
}

/* ============================================
   RESPONSIVE — TABLET (<=1024px)
   ============================================ */
@media (max-width: 1024px) {
    .hero__grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .hero__meta {
        flex-direction: row;
        border-left: none;
        border-top: var(--border);
        padding-left: 0;
        padding-top: var(--space-md);
        gap: var(--space-lg);
    }

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

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

    .process-step {
        margin-top: -3px;
    }

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

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

/* ============================================
   RESPONSIVE — MOBILE (<=768px)
   ============================================ */
@media (max-width: 768px) {
    :root {
        --space-lg: 3rem;
        --space-xl: 4rem;
        --space-2xl: 6rem;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--beige);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-lg);
        transition: right 0.5s var(--ease);
        border-left: var(--border);
    }

    .nav__links.open {
        right: 0;
    }

    .nav__links a {
        font-size: 1.2rem;
    }

    .hero__title {
        font-size: clamp(2.8rem, 12vw, 5rem);
    }

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

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

    .service-card {
        margin-left: 0;
    }

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

    .process-step {
        margin-left: 0;
    }

    .contact__form {
        padding: var(--space-md);
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-xs);
        text-align: center;
    }

    .footer__links {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .section__header {
        flex-wrap: wrap;
    }

    .section__line {
        flex-basis: 100%;
        order: 3;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}