/* ============================================================
   reasoner.studio — Mondrian Neoplastic Grid Design
   Colors: #1a1a1a, #fafaf7, #6b6b6b, #1b4965, #f5cb5c, #e8e5df, #d62839
   Fonts: DM Sans (Display), Work Sans (Body), Space Mono (Mono/Label)
   ============================================================ */

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

:root {
    --black: #1a1a1a;
    --off-white: #fafaf7;
    --mid-grey: #6b6b6b;
    --navy: #1b4965;
    --yellow: #f5cb5c;
    --cream: #e8e5df;
    --red: #d62839;
    --border: 3px solid #1a1a1a;
    --font-display: 'DM Sans', sans-serif;
    --font-body: 'Work Sans', sans-serif;
    --font-mono: 'Fira Code', 'Space Mono', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    background: #fafaf7;
    margin: 0;
    font-family: var(--font-body);
    color: var(--black);
    cursor: none;
    overflow-x: hidden;
}

/* --- SVG Grid Draw Overlay --- */
#grid-draw-svg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
    opacity: 0;
}

#grid-draw-svg.drawn {
    opacity: 0;
    transition: opacity 1s ease;
}

/* --- Custom Cursor --- */
#argument-cursor {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    mix-blend-mode: multiply;
}

.cursor-outer {
    width: 32px;
    height: 32px;
    border: 2px solid var(--black);
    border-radius: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.15s ease, height 0.15s ease, border-color 0.15s ease, border-radius 0.15s ease;
}

.cursor-inner {
    width: 6px;
    height: 6px;
    background: var(--red);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: background 0.15s ease, width 0.1s ease, height 0.1s ease;
}

body.cursor-hover .cursor-outer {
    width: 48px;
    height: 48px;
    border-color: var(--navy);
    border-radius: 50%;
}

body.cursor-hover .cursor-inner {
    background: var(--yellow);
    width: 8px;
    height: 8px;
}

/* --- Geometric Shape Navigation --- */
#shape-nav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 500;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.shape-nav-btn {
    background: none;
    border: none;
    cursor: none;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.4;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.shape-nav-btn:hover,
.shape-nav-btn.active {
    opacity: 1;
    transform: scale(1.2);
}

.shape-circle {
    width: 16px;
    height: 16px;
    background: var(--red);
    border-radius: 50%;
    transition: background 0.3s ease;
}

.shape-square {
    width: 14px;
    height: 14px;
    background: var(--navy);
    transition: background 0.3s ease;
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 16px solid var(--yellow);
    transition: border-bottom-color 0.3s ease;
}

.shape-dot {
    width: 10px;
    height: 10px;
    background: var(--black);
    border-radius: 50%;
}

/* --- Main Mondrian Grid --- */
#mondrian-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(140px, auto);
    gap: 0;
    border: var(--border);
    border-bottom: none;
    min-height: 100vh;
}

/* --- Grid Block Base --- */
.grid-block {
    border: var(--border);
    border-top: none;
    border-left: none;
    position: relative;
    overflow: hidden;
}

/* Grid column/row spans */
/* Row 1 */
.grid-block[data-col="1"][data-row="1"] { grid-column: 1; grid-row: 1; }
.grid-block[data-col="2-4"][data-row="1"] { grid-column: 2 / 5; grid-row: 1; }
.grid-block[data-col="5"][data-row="1"] { grid-column: 5; grid-row: 1; }
.grid-block[data-col="6-10"][data-row="1"] { grid-column: 6 / 11; grid-row: 1; }
.grid-block[data-col="11-12"][data-row="1"] { grid-column: 11 / 13; grid-row: 1; }

/* Row 2 */
.grid-block[data-col="1"][data-row="2-3"] { grid-column: 1; grid-row: 2 / 4; }
.grid-block[data-col="2-8"][data-row="2-3"] { grid-column: 2 / 9; grid-row: 2 / 4; }
.grid-block[data-col="9"][data-row="2"] { grid-column: 9; grid-row: 2; }
.grid-block[data-col="10-12"][data-row="2"] { grid-column: 10 / 13; grid-row: 2; }
.grid-block[data-col="9"][data-row="3"] { grid-column: 9; grid-row: 3; }
.grid-block[data-col="10-12"][data-row="3"] { grid-column: 10 / 13; grid-row: 3; }

/* Row 4 */
.grid-block[data-col="1-2"][data-row="4"] { grid-column: 1 / 3; grid-row: 4; }
.grid-block[data-col="3-8"][data-row="4"] { grid-column: 3 / 9; grid-row: 4; }
.grid-block[data-col="9"][data-row="4-5"] { grid-column: 9; grid-row: 4 / 6; }
.grid-block[data-col="10-12"][data-row="4"] { grid-column: 10 / 13; grid-row: 4; }

/* Row 5 */
.grid-block[data-col="1-2"][data-row="5"] { grid-column: 1 / 3; grid-row: 5; }
.grid-block[data-col="3-8"][data-row="5"] { grid-column: 3 / 9; grid-row: 5; }
.grid-block[data-col="10-12"][data-row="5"] { grid-column: 10 / 13; grid-row: 5; }

/* Row 6 */
.grid-block[data-col="1-2"][data-row="6"] { grid-column: 1 / 3; grid-row: 6; }
.grid-block[data-col="3-12"][data-row="6"] { grid-column: 3 / 13; grid-row: 6; }

/* Row 7 */
.grid-block[data-col="1"][data-row="7"] { grid-column: 1; grid-row: 7; }
.grid-block[data-col="2-5"][data-row="7"] { grid-column: 2 / 6; grid-row: 7; }
.grid-block[data-col="6"][data-row="7"] { grid-column: 6; grid-row: 7; }
.grid-block[data-col="7-10"][data-row="7"] { grid-column: 7 / 11; grid-row: 7; }
.grid-block[data-col="11-12"][data-row="7-8"] { grid-column: 11 / 13; grid-row: 7 / 9; }

/* Row 8 */
.grid-block[data-col="1"][data-row="8"] { grid-column: 1; grid-row: 8; }
.grid-block[data-col="2-5"][data-row="8"] { grid-column: 2 / 6; grid-row: 8; }
.grid-block[data-col="6"][data-row="8"] { grid-column: 6; grid-row: 8; }
.grid-block[data-col="7-10"][data-row="8"] { grid-column: 7 / 11; grid-row: 8; }

/* Row 9 */
.grid-block[data-col="1-2"][data-row="9"] { grid-column: 1 / 3; grid-row: 9; }
.grid-block[data-col="3"][data-row="9"] { grid-column: 3; grid-row: 9; }
.grid-block[data-col="4-12"][data-row="9"] { grid-column: 4 / 13; grid-row: 9; }

/* Row 10 */
.grid-block[data-col="1"][data-row="10"] { grid-column: 1; grid-row: 10; }
.grid-block[data-col="2-9"][data-row="10"] { grid-column: 2 / 10; grid-row: 10; }
.grid-block[data-col="10"][data-row="10"] { grid-column: 10; grid-row: 10; }
.grid-block[data-col="11-12"][data-row="10"] { grid-column: 11 / 13; grid-row: 10; }

/* --- Color Blocks --- */
.color-block {
    background: transparent;
    transition: opacity 0.6s cubic-bezier(0.33, 1, 0.68, 1), background 0.6s cubic-bezier(0.33, 1, 0.68, 1);
}

.red-block { background: rgba(214, 40, 57, 0.15); }
.blue-block { background: rgba(27, 73, 101, 0.15); }
.yellow-block { background: rgba(245, 203, 92, 0.15); }

.red-block:hover { background: rgba(214, 40, 57, 1); transition: opacity 1.2s cubic-bezier(0.33, 1, 0.68, 1); }
.blue-block:hover { background: rgba(27, 73, 101, 1); transition: opacity 1.2s cubic-bezier(0.33, 1, 0.68, 1); }
.yellow-block:hover { background: rgba(245, 203, 92, 1); transition: opacity 1.2s cubic-bezier(0.33, 1, 0.68, 1); }

/* --- Brand Block --- */
.brand-block {
    background: var(--off-white);
    display: flex;
    align-items: center;
    padding: 1.5rem 2rem;
}

.brand-inner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-monogram {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--navy);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 3px solid var(--navy);
}

.brand-name {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--black);
    text-transform: lowercase;
}

.brand-dot {
    color: var(--red);
}

/* --- Nav Block --- */
.nav-block {
    background: var(--off-white);
    display: flex;
    align-items: center;
    padding: 0 2rem;
}

.inline-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--black);
    text-decoration: none;
    position: relative;
    padding-bottom: 2px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red);
    transition: width 0.25s ease;
}

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

/* --- Hero Block --- */
.hero-block {
    background: var(--off-white);
    padding: 0;
    display: flex;
    align-items: center;
}

.hero-inner {
    padding: 3rem 3.5rem;
    max-width: 640px;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--mid-grey);
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 2rem;
}

.hero-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 1.25rem;
    height: 2px;
    background: var(--red);
    transform: translateY(-50%);
}

.hero-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 4.5rem);
    font-weight: 700;
    line-height: 1.05;
    color: var(--black);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-sub {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.75;
    color: var(--mid-grey);
    margin-bottom: 2.5rem;
    max-width: 480px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--off-white);
    background: var(--black);
    text-decoration: none;
    padding: 0.875rem 1.75rem;
    border: 3px solid var(--black);
    transition: background 0.25s ease, color 0.25s ease;
}

.hero-cta:hover {
    background: var(--navy);
    border-color: var(--navy);
}

.cta-arrow {
    transition: transform 0.25s ease;
    font-style: normal;
}

.hero-cta:hover .cta-arrow {
    transform: translateX(4px);
}

/* --- Stat Blocks --- */
.stat-block {
    background: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.stat-block.dark {
    background: var(--navy);
}

.stat-inner {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.5vw, 3.5rem);
    font-weight: 700;
    color: var(--black);
    display: block;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-block.dark .stat-number {
    color: var(--yellow);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--mid-grey);
}

.stat-block.dark .stat-label {
    color: rgba(255,255,255,0.6);
}

/* --- Section Label Block --- */
.section-label-block {
    background: var(--black);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    gap: 0.5rem;
}

.section-label-block.red-label {
    background: var(--red);
}

.section-label-block.yellow-label {
    background: var(--yellow);
}

.section-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.5);
}

.section-label-block.yellow-label .section-num {
    color: rgba(26, 26, 26, 0.5);
}

.section-title {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #fff;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.section-label-block.yellow-label .section-title {
    color: var(--black);
}

/* --- About Block --- */
.about-block {
    background: var(--off-white);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
}

.block-heading {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--black);
    letter-spacing: -0.01em;
}

.block-text {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.75;
    color: var(--mid-grey);
}

.block-text-sm {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.75;
    color: var(--mid-grey);
}

/* --- Quote Block --- */
.quote-block {
    background: var(--navy);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.pull-quote {
    font-family: var(--font-display);
    font-size: clamp(0.875rem, 1.2vw, 1.1rem);
    font-weight: 500;
    font-style: italic;
    line-height: 1.6;
    color: var(--off-white);
    quotes: none;
    position: relative;
    padding-left: 1.25rem;
    border-left: 3px solid var(--yellow);
}

/* --- Values Block --- */
.values-block {
    background: var(--cream);
    padding: 2.5rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    height: 100%;
}

.value-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.value-icon svg {
    width: 36px;
    height: 36px;
}

.value-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--black);
}

.value-text {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--mid-grey);
}

/* --- Skills Block --- */
.skills-block {
    background: var(--off-white);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.skills-heading {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--mid-grey);
    margin-bottom: 1rem;
}

.skills-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skills-list li {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--black);
    padding-left: 1rem;
    position: relative;
}

.skills-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    background: var(--yellow);
    transform: translateY(-50%);
}

/* --- Work Intro Block --- */
.work-intro-block {
    background: var(--off-white);
    padding: 2rem 2.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.work-intro-block .block-heading {
    margin: 0;
}

/* --- Project Blocks --- */
.project-block {
    background: var(--off-white);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 0.75rem;
    transition: background 0.3s ease;
    cursor: none;
}

.project-block.dark {
    background: var(--black);
}

.project-block:hover {
    background: var(--cream);
}

.project-block.dark:hover {
    background: #2a2a2a;
}

.project-number {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--mid-grey);
    margin-bottom: auto;
    padding-top: 0.5rem;
}

.project-block.dark .project-number {
    color: rgba(255,255,255,0.3);
}

.project-title {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 1.8vw, 1.5rem);
    font-weight: 700;
    color: var(--black);
    line-height: 1.1;
}

.project-block.dark .project-title {
    color: var(--off-white);
}

.project-desc {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--mid-grey);
}

.project-block.dark .project-desc {
    color: rgba(255,255,255,0.55);
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--navy);
    border: 1.5px solid var(--navy);
    padding: 0.2rem 0.5rem;
}

.project-block.dark .tag {
    color: var(--yellow);
    border-color: var(--yellow);
}

.project-hover-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--red);
    transition: width 0.4s ease;
}

.project-block:hover .project-hover-line {
    width: 100%;
}

/* --- Process Block --- */
.process-block {
    background: var(--cream);
    padding: 2.5rem;
    display: flex;
    align-items: center;
}

.process-steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
    width: 100%;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    gap: 1rem;
}

.step-marker {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.process-step:hover .step-marker {
    transform: scale(1.15);
}

.step-circle {
    background: var(--red);
    border-radius: 50%;
}

.step-square {
    background: var(--navy);
    border-radius: 0;
}

.step-triangle {
    width: 0;
    height: 0;
    background: transparent;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    border-bottom: 36px solid var(--yellow);
}

.process-connector {
    width: 3rem;
    height: 2px;
    background: var(--black);
    margin-top: 20px;
    flex-shrink: 0;
}

.step-content {
    text-align: center;
    max-width: 200px;
}

.step-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.step-text {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--mid-grey);
}

/* --- Contact Block --- */
.contact-block {
    background: var(--black);
    display: flex;
    align-items: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    min-height: 200px;
}

.contact-inner {
    position: relative;
    z-index: 2;
}

.contact-heading {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 3rem);
    font-weight: 700;
    color: var(--off-white);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.contact-text {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.7;
    color: rgba(250, 250, 247, 0.6);
    margin-bottom: 1.75rem;
}

.contact-link {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--yellow);
    text-decoration: none;
    border-bottom: 2px solid rgba(245, 203, 92, 0.4);
    padding-bottom: 2px;
    transition: border-color 0.25s ease, color 0.25s ease;
}

.contact-link:hover {
    color: var(--off-white);
    border-color: var(--off-white);
}

.contact-shapes {
    position: absolute;
    right: 3rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 1.5rem;
    align-items: center;
    opacity: 0.15;
}

.contact-shape {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.contact-block:hover .contact-shape {
    opacity: 0.4;
}

.contact-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--red);
}

.contact-square {
    width: 50px;
    height: 50px;
    background: var(--navy);
}

.contact-triangle-shape {
    width: 0;
    height: 0;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
    border-bottom: 54px solid var(--yellow);
}

/* --- Footer Block --- */
.footer-block {
    background: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.footer-inner {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
}

.footer-brand {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--black);
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--mid-grey);
    letter-spacing: 0.05em;
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-link {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--mid-grey);
    text-decoration: none;
    letter-spacing: 0.05em;
}

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

/* --- Page Load Animation --- */
#mondrian-grid {
    opacity: 0;
    transform: scale(0.98);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

#mondrian-grid.visible {
    opacity: 1;
    transform: scale(1);
}

/* Block stagger entrance */
.grid-block {
    opacity: 0;
    transition: opacity 0.5s ease, background 0.6s ease, transform 0.3s ease;
}

.grid-block.block-visible {
    opacity: 1;
}

/* --- Hover Interactions on Color Blocks --- */
.color-block::after {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: brightness(1.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* --- Fira Code Inline Notation --- */
code, .notation {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.4;
    background: #e8e5df;
    padding: 0.1em 0.3em;
    border-radius: 2px;
}

/* Reading width for text-heavy blocks (comfortable reading width: max-width: 65ch within their grid cell) */
.about-block .block-text,
.project-desc {
    max-width: 65ch;
}

/* decorative subtle color block opacity rules (Google Fonts) */
/* Observer. Sans" Code" (`max-width: 65ch` within their grid cell) */
/* `background: #e8e5df `transition: opacity 0.6s Interaction:** 15% Color Block Interaction:** */

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: var(--cream);
}

::-webkit-scrollbar-thumb {
    background: var(--black);
}

/* --- Responsive (Tablet/Mobile) --- */
@media (max-width: 1024px) {
    #mondrian-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    /* Remap columns for tablet */
    .grid-block[data-col="1"][data-row="1"] { grid-column: 1; grid-row: 1; }
    .grid-block[data-col="2-4"][data-row="1"] { grid-column: 2 / 5; grid-row: 1; }
    .grid-block[data-col="5"][data-row="1"] { grid-column: 5; grid-row: 1; display: none; }
    .grid-block[data-col="6-10"][data-row="1"] { grid-column: 5 / 7; grid-row: 1; }
    .grid-block[data-col="11-12"][data-row="1"] { grid-column: 6 / 7; grid-row: 1; display: none; }

    .grid-block[data-col="1"][data-row="2-3"] { grid-column: 1; grid-row: 2; }
    .grid-block[data-col="2-8"][data-row="2-3"] { grid-column: 2 / 7; grid-row: 2; }
    .grid-block[data-col="9"][data-row="2"] { display: none; }
    .grid-block[data-col="10-12"][data-row="2"] { grid-column: 1 / 4; grid-row: 3; }
    .grid-block[data-col="9"][data-row="3"] { display: none; }
    .grid-block[data-col="10-12"][data-row="3"] { grid-column: 4 / 7; grid-row: 3; }

    .grid-block[data-col="1-2"][data-row="4"] { grid-column: 1 / 3; grid-row: 4; }
    .grid-block[data-col="3-8"][data-row="4"] { grid-column: 1 / 7; grid-row: 5; }
    .grid-block[data-col="9"][data-row="4-5"] { display: none; }
    .grid-block[data-col="10-12"][data-row="4"] { grid-column: 3 / 7; grid-row: 4; }

    .grid-block[data-col="1-2"][data-row="5"] { grid-column: 1 / 3; grid-row: 6; }
    .grid-block[data-col="3-8"][data-row="5"] { grid-column: 1 / 7; grid-row: 7; }
    .grid-block[data-col="10-12"][data-row="5"] { grid-column: 3 / 7; grid-row: 6; }

    .grid-block[data-col="1-2"][data-row="6"] { grid-column: 1 / 3; grid-row: 8; }
    .grid-block[data-col="3-12"][data-row="6"] { grid-column: 1 / 7; grid-row: 9; }

    .grid-block[data-col="1"][data-row="7"] { grid-column: 1; grid-row: 10; }
    .grid-block[data-col="2-5"][data-row="7"] { grid-column: 2 / 7; grid-row: 10; }
    .grid-block[data-col="6"][data-row="7"] { grid-column: 1; grid-row: 11; }
    .grid-block[data-col="7-10"][data-row="7"] { grid-column: 2 / 7; grid-row: 11; }
    .grid-block[data-col="11-12"][data-row="7-8"] { display: none; }

    .grid-block[data-col="1"][data-row="8"] { grid-column: 1; grid-row: 12; }
    .grid-block[data-col="2-5"][data-row="8"] { grid-column: 2 / 7; grid-row: 12; }
    .grid-block[data-col="6"][data-row="8"] { grid-column: 1; grid-row: 13; }
    .grid-block[data-col="7-10"][data-row="8"] { grid-column: 2 / 7; grid-row: 13; }

    .grid-block[data-col="1-2"][data-row="9"] { grid-column: 1 / 3; grid-row: 14; }
    .grid-block[data-col="3"][data-row="9"] { grid-column: 3; grid-row: 14; }
    .grid-block[data-col="4-12"][data-row="9"] { grid-column: 1 / 7; grid-row: 15; }

    .grid-block[data-col="1"][data-row="10"] { grid-column: 1; grid-row: 16; }
    .grid-block[data-col="2-9"][data-row="10"] { grid-column: 1 / 7; grid-row: 17; }
    .grid-block[data-col="10"][data-row="10"] { grid-column: 1; grid-row: 18; }
    .grid-block[data-col="11-12"][data-row="10"] { grid-column: 2 / 7; grid-row: 18; }

    #shape-nav { right: 1rem; }
    .values-grid { grid-template-columns: 1fr; }
    .process-steps { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
    .process-connector { width: 2px; height: 1.5rem; }
}

@media (max-width: 640px) {
    body { cursor: auto; }
    #argument-cursor { display: none; }
    #shape-nav { display: none; }

    .hero-inner { padding: 2rem; }
    .hero-heading { font-size: 2rem; }
    .inline-nav { gap: 1rem; }
    .contact-shapes { display: none; }
}