/* ============================================================
   Kwabena Mensah — portfolio
   Composition: all-navy dusk + lime · mono body / serif display
   museum wall labels · dictated quote · parallax layers
   ============================================================ */

:root {
  --bg:        #0e1a2b;
  --bg-2:      #121f33;
  --bg-3:      #16263d;
  --ink:       #eaeef7;
  --ink-soft:  #a8b4cc;
  --ink-faint: #6d7c99;
  --accent:    #ccff33;
  --accent-ink:#0e1a2b;
  --line:      rgba(234, 238, 247, 0.14);
  --line-soft: rgba(234, 238, 247, 0.07);
  --frame:     #1b2c45;
  --shadow:    0 24px 60px -30px rgba(0, 0, 0, 0.9);

  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif: 'Fraunces', 'Playfair Display', Georgia, serif;

  --wrap: 1180px;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --gap: clamp(2rem, 6vw, 5rem);
  --radius: 4px;
}

html[data-theme="light"] {
  --bg:        #f3f1ea;
  --bg-2:      #eae7dd;
  --bg-3:      #e2ded1;
  --ink:       #131c2b;
  --ink-soft:  #4a5568;
  --ink-faint: #7b8496;
  --accent:    #4f7a00;
  --accent-ink:#f3f1ea;
  --line:      rgba(19, 28, 43, 0.16);
  --line-soft: rgba(19, 28, 43, 0.08);
  --frame:     #dcd7c9;
  --shadow:    0 24px 50px -34px rgba(19, 28, 43, 0.45);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: clamp(0.9rem, 0.55vw + 0.78rem, 1rem);
  line-height: 1.7;
  font-weight: 400;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  transition: background-color 320ms ease, color 320ms ease;
}
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0; font-weight: 400; }
p { margin: 0 0 1.1em; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-ink);
  padding: 0.6rem 1rem; z-index: 200;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}
.muted { color: var(--ink-faint); }

/* ============================================================
   HEADER
   ============================================================ */
.site-head {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.85rem var(--pad);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.mark {
  display: inline-flex; align-items: center; gap: 0.6rem;
  color: var(--ink); font-size: 0.82rem; letter-spacing: 0.02em;
  text-decoration: none; flex: 0 0 auto;
}
.mark:hover { text-decoration: none; }
.mark-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}
.site-nav {
  display: flex; gap: 1.4rem; margin-left: auto;
  font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase;
}
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover { color: var(--accent); text-decoration: none; }

.theme-toggle {
  display: inline-flex; align-items: center; gap: 0.55rem;
  background: none; border: 1px solid var(--line);
  color: var(--ink-soft); font: inherit; font-size: 0.72rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.5rem 0.7rem; min-height: 44px;
  border-radius: 999px; cursor: pointer;
  transition: border-color 200ms ease, color 200ms ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.tt-track {
  width: 30px; height: 16px; border-radius: 999px;
  background: var(--line); position: relative; flex: 0 0 auto;
}
.tt-knob {
  position: absolute; top: 2px; left: 2px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent);
  transition: transform 260ms cubic-bezier(.2,.7,.1,1);
}
html[data-theme="light"] .tt-knob { transform: translateX(14px); }

@media (max-width: 720px) {
  .site-nav { display: none; }
  .theme-toggle { margin-left: auto; }
  .tt-label { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: clamp(4rem, 12vh, 9rem) 0 clamp(3rem, 8vh, 6rem);
  overflow: hidden;
  isolation: isolate;
}
.hero-parallax {
  position: absolute; inset: -10% -5% -10% -5%;
  z-index: -1; pointer-events: none;
}
.layer { position: absolute; inset: 0; }
.layer-far {
  background:
    radial-gradient(60% 45% at 78% 12%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%),
    radial-gradient(50% 40% at 12% 78%, color-mix(in srgb, #3a6ea5 22%, transparent), transparent 72%);
  transform: translateY(calc(var(--scroll, 0) * -0.06px));
}
.layer-mid {
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(70% 60% at 50% 40%, #000 20%, transparent 78%);
  transform: translateY(calc(var(--scroll, 0) * -0.14px));
}
.layer-near {
  background: linear-gradient(180deg, transparent 55%, var(--bg) 100%);
  transform: translateY(calc(var(--scroll, 0) * -0.24px));
}

.hero-inner { position: relative; }
.eyebrow {
  font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 1.6rem;
}
.eyebrow::before {
  content: ""; display: inline-block; width: 26px; height: 1px;
  background: var(--accent); vertical-align: middle;
  margin-right: 0.7rem;
}
h1 {
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 0, "WONK" 1;
  font-weight: 400;
  font-size: clamp(2.1rem, 6.4vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.028em;
  text-wrap: balance;
  margin-bottom: 1.8rem;
}
.accent-block {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.02em 0.22em 0.08em;
  transform-origin: left center;
  animation: revealFromLeft 900ms cubic-bezier(.2,.7,.1,1) both;
}
@keyframes revealFromLeft {
  from { clip-path: inset(0 100% 0 0); transform: translateX(-0.12em); }
  to   { clip-path: inset(0 0 0 0);   transform: translateX(0); }
}

.hero-lede {
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: clamp(0.92rem, 0.4vw + 0.85rem, 1.05rem);
  line-height: 1.8;
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: 0.9rem;
  margin: 2.2rem 0 3.4rem;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0.8rem 1.5rem;
  font-family: var(--mono); font-size: 0.8rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: var(--radius); border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease, border-color 200ms ease, transform 200ms ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 84%, #fff); }
.btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.4rem 2rem;
  border-top: 1px solid var(--line);
  padding-top: 1.6rem;
  max-width: 780px;
}
.hero-stats dt {
  font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 0.35rem;
}
.hero-stats dd {
  font-family: var(--serif); font-size: 1.5rem; line-height: 1.1;
  color: var(--ink);
}

/* ============================================================
   DICTATED QUOTE
   ============================================================ */
.dictation {
  padding: clamp(3.5rem, 10vh, 7rem) 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-2);
}
.dictation-line {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.6vw, 2.05rem);
  line-height: 1.42;
  letter-spacing: -0.015em;
  max-width: 30ch;
  margin: 0 auto 1.6rem;
  text-align: center;
  text-wrap: pretty;
}
.dictation-line .w {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.35em);
  animation: dictate 420ms cubic-bezier(.2,.7,.1,1) forwards;
}
@keyframes dictate {
  to { opacity: 1; transform: translateY(0); }
}
.dictation-line .caret {
  display: inline-block; width: 0.5ch; height: 1em;
  background: var(--accent); vertical-align: -0.12em;
  margin-left: 0.12em;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
.dictation-attr {
  text-align: center; font-size: 0.72rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: clamp(4rem, 11vh, 8rem) 0; }
.section-alt { background: var(--bg-2); }
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1.4rem;
  align-items: baseline;
  margin-bottom: clamp(2.5rem, 6vh, 4.5rem);
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.4rem;
}
.section-index {
  font-size: 0.72rem; letter-spacing: 0.14em;
  color: var(--accent); margin: 0;
}
.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  line-height: 1.1; letter-spacing: -0.02em;
}
.section-note {
  grid-column: 2;
  margin: 0.5rem 0 0;
  color: var(--ink-faint);
  font-size: 0.82rem;
  max-width: 52ch;
}

/* ============================================================
   WALL — museum labels
   ============================================================ */
.wall { display: grid; gap: clamp(3rem, 8vh, 6rem); }
.wall-item {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}
.wall-item:nth-child(even) .wall-frame { order: 2; }

.wall-frame {
  margin: 0;
  background: var(--frame);
  border: 1px solid var(--line-soft);
  padding: 10px;
  box-shadow: var(--shadow);
}
.frame-inner {
  aspect-ratio: 4 / 3;
  width: 100%;
  position: relative;
  overflow: hidden;
  background: var(--bg-3);
}
.frame-inner::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.7;
}
.frame-a { background: linear-gradient(140deg, #16324f 0%, #0e1a2b 60%, #1d3a2a 100%); }
.frame-b { background: linear-gradient(160deg, #2a1f14 0%, #0e1a2b 55%, #3d2c14 100%); }
.frame-c { background: linear-gradient(120deg, #0e1a2b 0%, #1b3a52 50%, #0e1a2b 100%); }
.frame-d { background: linear-gradient(200deg, #1c2b1a 0%, #0e1a2b 60%, #16324f 100%); }
.frame-e { background: linear-gradient(150deg, #2b1a2e 0%, #0e1a2b 55%, #1b2c45 100%); }
.frame-f { background: linear-gradient(170deg, #0e1a2b 0%, #243b2a 55%, #0e1a2b 100%); }

.label { padding-top: 0.4rem; }
.label-title {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 0.5rem;
}
.label-meta {
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 0.2rem;
}
.label-role {
  font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 1.1rem;
}
.label-body {
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.78;
  margin-bottom: 1.1rem;
}
.label-tags {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
}
.label-tags li {
  font-size: 0.66rem; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
}

@media (max-width: 820px) {
  .wall-item { grid-template-columns: 1fr; }
  .wall-item:nth-child(even) .wall-frame { order: 0; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.6fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.portrait-frame {
  aspect-ratio: 4 / 5;
  background: linear-gradient(160deg, #1b2c45 0%, #0e1a2b 55%, #243b2a 100%);
  border: 1px solid var(--line-soft);
  padding: 0;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.portrait-frame::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.6;
}
.about-portrait .label-meta { margin-top: 0.9rem; color: var(--ink-faint); }

.about-copy .lead {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}
.about-copy p { color: var(--ink-soft); font-size: 0.88rem; line-height: 1.85; }

.about-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.6rem 2rem;
  margin-top: 2.4rem;
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
}
.about-facts h3 {
  font-size: 0.7rem; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.5rem;
}
.about-facts p { font-size: 0.82rem; color: var(--ink-soft); margin: 0; line-height: 1.7; }

@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-portrait { max-width: 320px; }
}

/* ============================================================
   APPROACH
   ============================================================ */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.approach-card {
  background: var(--bg);
  padding: clamp(1.5rem, 3vw, 2.2rem);
}
.approach-num {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 1rem;
  letter-spacing: 0.05em;
}
.approach-card h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.25;
  margin-bottom: 0.8rem;
  letter-spacing: -0.01em;
}
.approach-card p {
  font-size: 0.83rem;
  color: var(--ink-soft);
  line-height: 1.78;
  margin: 0;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.contact-form { display: grid; gap: 1.2rem; }
.field { display: grid; gap: 0.45rem; }
.field label {
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint);
}
.field input,
.field textarea {
  font-family: var(--mono);
  font-size: 0.88rem;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem 0.95rem;
  min-height: 48px;
  width: 100%;
  transition: border-color 180ms ease, background-color 180ms ease;
}
.field textarea { resize: vertical; min-height: 140px; line-height: 1.7; }
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-faint); opacity: 0.75; }
.field input:focus,
.field textarea:focus { border-color: var(--accent); outline: none; }
.field input:focus-visible,
.field textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.contact-form .btn { justify-self: start; }
.form-status {
  font-size: 0.82rem;
  color: var(--accent);
  margin: 0;
  min-height: 1.4em;
}
.form-status[data-state="error"] { color: #ff8f6b; }

.contact-side { display: grid; gap: 1.8rem; }
.contact-block h3 {
  font-size: 0.7rem; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.5rem;
}
.contact-block p { font-size: 0.84rem; color: var(--ink-soft); margin: 0; line-height: 1.75; }
.contact-links { display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.84rem; }

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-foot {
  border-top: 1px solid var(--line);
  padding: 2.6rem 0 3rem;
  background: var(--bg);
}
.foot-inner {
  display: flex; flex-wrap: wrap; gap: 0.6rem 2rem;
  align-items: baseline; justify-content: space-between;
}
.foot-mark { font-size: 0.78rem; color: var(--ink-soft); margin: 0; }
.foot-note { font-size: 0.74rem; color: var(--ink-faint); margin: 0; }
.attribution { font-size: 0.72rem; margin: 0; }
.attribution a { color: var(--ink-faint); }
.attribution a:hover { color: var(--accent); }

/* ============================================================
   SCROLL-DRIVEN REVEALS (progressive enhancement)
   ============================================================ */
@supports (animation-timeline: view()) {
  .wall-item,
  .approach-card,
  .about-facts > div {
    animation: riseIn 1ms linear both;
    animation-timeline: view();
    animation-range: entry 5% cover 32%;
  }
  @keyframes riseIn {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .accent-block { clip-path: none; transform: none; }
  .dictation-line .w { opacity: 1; transform: none; }
  .dictation-line .caret { animation: none; opacity: 1; }
  .layer-far, .layer-mid, .layer-near { transform: none !important; }
  .wall-item, .approach-card, .about-facts > div { opacity: 1; transform: none; }
}