/* ─────────────────────────────────────────────
   sqpxcy Portfolio — Styles
   Design: dark, technical, server-authoritative
   ───────────────────────────────────────────── */

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

:root {
    /* Palette — near-black surface, off-white ink, single accent */
    --bg:          #0a0a0c;
    --bg-alt:      #0d0e11;
    --surface:     #131519;
    --surface-2:   #1a1d22;
    --ink:         #ece9e4;
    --ink-muted:   #9a9ea6;
    --ink-faint:   #5c6168;
    --orange:      #f2762e;
    --orange-dim:  #e6621a;
    --border:      rgba(255, 255, 255, 0.08);
    --border-mid:  rgba(255, 255, 255, 0.14);

    /* Type scale */
    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  clamp(1.5rem, 2.5vw, 1.875rem);
    --text-4xl:  clamp(1.875rem, 3.5vw, 2.5rem);
    --text-hero: clamp(2rem, 4.5vw, 3.25rem);

    /* Spacing */
    --space-2:  0.5rem;
    --space-4:  1rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --max-w: 1100px;
    --px: clamp(1.25rem, 5vw, 2.5rem);

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

    /* Type families */
    --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', 'Consolas', monospace;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--ink);
    font-size: var(--text-base);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 {
    font-family: var(--font-body);
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--ink);
}

h4, h5, p, a, li, button {
    font-family: var(--font-body);
}

em {
    font-style: italic;
    color: var(--orange);
}

/* -- CYCLING HERO TEXT -- */
.hero-cycling {
    display: inline-block;
    color: var(--orange);
    font-style: italic;
    position: relative;
    padding-bottom: 0.1em;
    vertical-align: bottom;
}

#cycling-text {
    display: inline-block;
    will-change: transform, opacity;
}

#cycling-text.cycling-exit {
    animation: cycleOut 0.35s var(--ease-out) forwards;
}

#cycling-text.cycling-enter {
    animation: cycleIn 0.4s var(--ease-out) forwards;
}

@keyframes cycleOut {
    from { opacity: 1; transform: translateY(0); }
    to   { opacity: 0; transform: translateY(-18px); }
}

@keyframes cycleIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background-color: rgba(255, 255, 255, 0.06);
    color: var(--ink);
    border-radius: 4px;
    padding: 0.1em 0.4em;
}

ul, ol { list-style: none; }

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.18s ease;
}

img, svg { display: block; }

/* ── CONTAINER ── */
.container {
    max-width: var(--max-w);
    margin-inline: auto;
    padding-inline: var(--px);
}

/* ── MICRO LABEL (code-comment style, replaces generic "eyebrow" chips) ── */
.tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--ink-faint);
    margin-bottom: var(--space-4);
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: var(--text-base);
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: transform 0.18s var(--ease-out), background-color 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    white-space: nowrap;
    font-family: var(--font-body);
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn--accent {
    background-color: var(--orange-dim);
    color: #0a0a0c;
    border-color: var(--orange-dim);
    font-weight: 600;
}

.btn--accent:hover {
    background-color: var(--orange);
    box-shadow: 0 6px 24px rgba(242, 118, 46, 0.25);
}

.btn--ghost {
    background-color: transparent;
    color: var(--ink);
    border-color: var(--border-mid);
}

.btn--ghost:hover {
    background-color: var(--surface);
    border-color: var(--ink-faint);
}

.btn--lg {
    padding: 0.9rem 1.75rem;
    font-size: var(--text-lg);
    border-radius: 10px;
}

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
}


/* ═══════════════════════════════════
   HEADER / NAV
   ═══════════════════════════════════ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(10, 10, 12, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.25s ease, background-color 0.25s ease;
}

.site-header.header--scrolled {
    border-bottom-color: var(--border);
    background-color: rgba(10, 10, 12, 0.96);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    padding-block: var(--space-4);
}

.wordmark {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--ink);
    flex-shrink: 0;
}

.wordmark-dot {
    color: var(--orange);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-left: auto;
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--ink-muted);
    transition: color 0.18s ease;
}

.nav-link:hover {
    color: var(--ink);
}

/* ═══════════════════════════════════
   HERO
   ═══════════════════════════════════ */
.hero {
    padding-block: var(--space-24) var(--space-16);
    position: relative;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-16);
    align-items: end;
}

.hero h1 {
    font-size: var(--text-hero);
    margin-bottom: var(--space-6);
}

.hero-body {
    font-size: var(--text-xl);
    color: var(--ink-muted);
    max-width: 480px;
    margin-bottom: var(--space-8);
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

/* Comms card — the hero aside */
.comms-card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-8);
}

.comms-card .lang-note-label {
    margin-bottom: var(--space-6);
}

.hero-line {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-mid), transparent);
    margin-top: var(--space-16);
}


/* ═══════════════════════════════════
   SECTION HEADER (shared)
   ═══════════════════════════════════ */
.section-header {
    margin-bottom: var(--space-12);
}

.section-header h2 {
    font-size: var(--text-4xl);
    margin-top: var(--space-2);
}

.section-lede {
    margin-top: var(--space-6);
    color: var(--ink-muted);
    max-width: 620px;
    line-height: 1.6;
}

/* ═══════════════════════════════════
   SYSTEMS
   ═══════════════════════════════════ */
.systems {
    padding-block: var(--space-24);
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.sys-card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: var(--space-8);
    transition: transform 0.22s var(--ease-out), border-color 0.22s ease, background-color 0.22s ease;
}

.sys-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-mid);
    background-color: var(--surface-2);
}

.sys-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.sys-card-tag {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--ink-faint);
}

.sys-card-link {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--orange);
    white-space: nowrap;
    transition: opacity 0.18s ease;
}

.sys-card-link:hover {
    opacity: 0.75;
}

.sys-card h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.feature-list li {
    font-size: var(--text-sm);
    color: var(--ink-muted);
    padding-left: var(--space-4);
    position: relative;
}

.feature-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--orange-dim);
}

/* Highlight card */
.sys-card--highlight {
    background-color: transparent;
    border-style: dashed;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-4);
}

.sys-card--highlight h3 {
    font-size: var(--text-xl);
}

.sys-card--highlight p {
    color: var(--ink-muted);
}

/* ═══════════════════════════════════
   APPROACH
   ═══════════════════════════════════ */
.approach {
    padding-block: var(--space-24);
    background-color: var(--bg-alt);
    border-block: 1px solid var(--border);
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8) var(--space-6);
}

.approach-item {
    border-top: 1px solid var(--border);
    padding-top: var(--space-6);
}

.approach-num {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--orange);
    background-color: rgba(242, 118, 46, 0.08);
    border-radius: 6px;
    padding: 0.2em 0.5em;
    margin-bottom: var(--space-4);
}

.approach-item h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.approach-item p {
    font-size: var(--text-sm);
    color: var(--ink-muted);
    line-height: 1.6;
}

/* ═══════════════════════════════════
   PROCESS
   ═══════════════════════════════════ */
.process {
    padding-block: var(--space-24);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    counter-reset: steps;
}

.process-step {
    border-top: 1px solid var(--border);
    padding-top: var(--space-6);
}

.step-num {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--orange);
    margin-bottom: var(--space-4);
}

.step-body h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--ink);
    margin-bottom: var(--space-4);
}

.step-body p {
    font-size: var(--text-base);
    color: var(--ink-muted);
    line-height: 1.65;
}

/* ═══════════════════════════════════
   CONTACT
   ═══════════════════════════════════ */
.contact {
    padding-block: var(--space-24);
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-text h2 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-6);
    margin-top: var(--space-2);
}

.contact-text p {
    color: var(--ink-muted);
    max-width: 420px;
    line-height: 1.65;
}

.lang-note-label {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--ink-faint);
    margin-bottom: var(--space-4);
}

.lang-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.lang-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding-block: 0.6rem;
    border-bottom: 1px solid var(--border);
    font-size: var(--text-sm);
}

.lang-list li:last-child {
    border-bottom: none;
}

.lang-name {
    font-weight: 500;
    color: var(--ink);
}

.lang-level {
    color: var(--ink-faint);
}

.lang-note {
    margin-top: var(--space-4);
    font-size: var(--text-sm);
    color: var(--ink-muted);
    line-height: 1.55;
    max-width: none;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.contact-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s var(--ease-out);
}

.contact-card-link:hover {
    transform: translateY(-3px);
}

.contact-option {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-6) var(--space-6);
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.contact-card-link:hover .contact-option {
    border-color: var(--orange-dim);
    box-shadow: 0 8px 30px rgba(230, 98, 26, 0.08);
}

.contact-option-icon {
    width: 44px;
    height: 44px;
    background-color: rgba(242, 118, 46, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    flex-shrink: 0;
}

.contact-option-label {
    display: block;
    font-weight: 600;
    font-size: var(--text-base);
    margin-bottom: 2px;
}

.contact-option-sub {
    display: block;
    font-size: var(--text-sm);
    color: var(--ink-muted);
}

.contact-option-arrow {
    margin-left: auto;
    color: var(--ink-faint);
    font-size: 1.25rem;
    transition: color 0.18s ease, transform 0.18s ease;
}

.contact-card-link:hover .contact-option-arrow {
    color: var(--orange);
    transform: translateX(3px);
}

/* ═══════════════════════════════════
   PRIVACY PAGE
   ═══════════════════════════════════ */
.privacy-page {
    max-width: 680px;
    margin: 0 auto;
    padding: 4rem var(--px) 6rem;
}

.privacy-page .back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--ink-muted);
    margin-bottom: 3rem;
    transition: color 0.18s;
}

.privacy-page .back:hover { color: var(--ink); }

.privacy-page h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: 0.5rem;
}

.privacy-page .last-updated {
    font-size: 0.875rem;
    color: var(--ink-muted);
    margin-bottom: 3rem;
    display: block;
}

.privacy-page h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

.privacy-page p {
    color: var(--ink-muted);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.privacy-page a {
    color: var(--orange);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.privacy-list {
    color: var(--ink-muted);
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    list-style: disc;
}

.privacy-list li {
    margin-bottom: 0.5rem;
}

.info-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-block: 2rem;
}

.info-box p {
    margin: 0;
    font-size: 0.9375rem;
}

/* ═══════════════════════════════════
   FOOTER
   ═══════════════════════════════════ */
.site-footer {
    border-top: 1px solid var(--border);
    padding-block: var(--space-8);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-link {
    font-size: var(--text-sm);
    color: var(--ink-muted);
    transition: color 0.18s ease;
}

.footer-link:hover {
    color: var(--ink);
}

/* ═══════════════════════════════════
   COOKIE BANNER
   ═══════════════════════════════════ */
.cookie-banner {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%) translateY(calc(100% + var(--space-8)));
    width: min(560px, calc(100vw - 2rem));
    background-color: var(--surface);
    border: 1px solid var(--border-mid);
    color: var(--ink);
    border-radius: 14px;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-6);
    z-index: 999;
    transition: transform 0.4s var(--ease-out);
    box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

.cookie-banner.is-visible {
    transform: translateX(-50%) translateY(0);
}

.cookie-inner {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    width: 100%;
}

.cookie-inner p {
    font-size: var(--text-sm);
    color: var(--ink-muted);
    flex: 1;
    margin: 0;
}

/* ═══════════════════════════════════
   REVEAL ANIMATIONS
   ═══════════════════════════════════ */
.js-ready .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}

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

/* Stagger children */
.stagger > *:nth-child(1) { transition-delay: 0.05s; }
.stagger > *:nth-child(2) { transition-delay: 0.12s; }
.stagger > *:nth-child(3) { transition-delay: 0.19s; }
.stagger > *:nth-child(4) { transition-delay: 0.26s; }
.stagger > *:nth-child(5) { transition-delay: 0.33s; }
.stagger > *:nth-child(6) { transition-delay: 0.40s; }

/* ═══════════════════════════════════
   RESPONSIVE — TABLET
   ═══════════════════════════════════ */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }

    .hero-aside {
        order: -1;
    }

    .comms-card {
        max-width: 100%;
    }

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

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

    .process-steps {
        grid-template-columns: 1fr;
    }

    .contact-inner {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
}

/* ═══════════════════════════════════
   RESPONSIVE — MOBILE
   ═══════════════════════════════════ */
@media (max-width: 600px) {
    :root {
        --px: 1.25rem;
    }

    .site-nav {
        display: none; /* Hidden on small screens */
    }

    .header-inner {
        gap: var(--space-4);
    }

    .hero {
        padding-block: var(--space-16) var(--space-12);
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn--lg {
        width: 100%;
        justify-content: center;
    }

    .systems-grid {
        gap: 1rem;
    }

    .sys-card {
        padding: var(--space-6);
    }

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

    .cookie-banner {
        bottom: var(--space-4);
        border-radius: 12px;
    }

    .cookie-inner {
        flex-direction: column;
        gap: var(--space-4);
        align-items: stretch;
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

/* ═══════════════════════════════════
   REDUCED MOTION ACCESSIBILITY
   ═══════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}