/* ============================================================
   JUAN DAVID MARULANDA · ARCHITECTURAL PORTFOLIO
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --paper:        #F7F4F0;
  --ink:          #1A1A18;
  --ink-mid:      #3C3C3A;
  --stone:        #7A7672;
  --rule:         #DDD9D3;
  --accent:       #C4724A;
  --accent-pale:  #F0E0D4;
  --accent-dark:  #9E5835;
  --blue:         #1E3F6B;
  --surface:      #FFFFFF;
  --surface-warm: #FBFAF8;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'Space Mono', 'Courier New', monospace;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 2px;
  --radius:    4px;
  --radius-lg: 8px;

  --trans-fast: 0.18s ease;
  --trans-mid:  0.32s ease;
  --trans-slow: 0.55s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-h: 64px;
  --drawer-w: 88vw;
  --max-w: 1380px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }
svg { display: block; }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-8);
}
@media (max-width: 768px) { .container { padding: 0 var(--space-5); } }

/* --- Typography helpers --- */
.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--ink);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: all var(--trans-mid);
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: var(--surface);
}
.btn--primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}
.btn--ghost {
  border: 1px solid rgba(255,255,255,0.45);
  color: var(--surface);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background var(--trans-mid), box-shadow var(--trans-mid);
}
.nav.is-scrolled {
  background: rgba(247, 244, 240, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--rule);
}
.nav.is-scrolled .nav__logo-initials,
.nav.is-scrolled .nav__logo-sep,
.nav.is-scrolled .nav__logo-title { color: var(--ink); }
.nav.is-scrolled .nav__link { color: var(--ink-mid); }
.nav.is-scrolled .nav__link:hover { color: var(--accent); }
.nav.is-scrolled .nav__burger span { background: var(--ink); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-8);
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav__logo-initials {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--surface);
  transition: color var(--trans-mid);
  letter-spacing: 0.05em;
}
.nav__logo-sep {
  color: rgba(255,255,255,0.4);
  transition: color var(--trans-mid);
}
.nav__logo-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  transition: color var(--trans-mid);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav__link {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.8);
  transition: color var(--trans-fast);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--trans-mid);
}
.nav__link:hover::after { width: 100%; }

/* burger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav__burger span {
  display: block;
  width: 22px; height: 1.5px;
  background: rgba(255,255,255,0.9);
  transition: all var(--trans-mid);
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  z-index: 99;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform var(--trans-mid), opacity var(--trans-mid);
  pointer-events: none;
}
.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.mobile-menu__inner {
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-5);
  gap: var(--space-1);
}
.mobile-menu__link {
  padding: var(--space-3) 0;
  font-size: 1.1rem;
  font-family: var(--font-display);
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 30%;
  animation: kenBurns 22s ease-out infinite alternate;
  transform-origin: center 40%;
}
@keyframes kenBurns {
  from { transform: scale(1); }
  to   { transform: scale(1.06); }
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 9, 8, 0.82) 0%,
    rgba(10, 9, 8, 0.45) 40%,
    rgba(10, 9, 8, 0.15) 70%,
    rgba(10, 9, 8, 0.05) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: 0 var(--space-10) var(--space-20);
  max-width: 820px;
  animation: heroFadeUp 1.1s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.hero__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}
.hero__rule-line {
  flex: 0 0 48px;
  height: 1px;
  background: rgba(255,255,255,0.3);
}
.hero__year {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(255,255,255,0.45);
}

.hero__name {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.0;
  margin-bottom: var(--space-5);
  display: flex;
  flex-direction: column;
}
.hero__name em {
  font-size: clamp(3rem, 7vw, 6rem);
  font-style: italic;
  color: rgba(255,255,255,0.75);
  font-weight: 300;
}
.hero__name strong {
  font-size: clamp(3.5rem, 8.5vw, 7.5rem);
  font-weight: 500;
  color: var(--surface);
  letter-spacing: -0.01em;
}

.hero__tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-8);
  line-height: 1.8;
}

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

/* hero bottom meta strip */
.hero__meta-strip {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-4) var(--space-10);
  background: rgba(10, 9, 8, 0.45);
  border-top: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(4px);
  animation: heroFadeUp 1.1s cubic-bezier(0.4, 0, 0.2, 1) 0.45s both;
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__meta-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}
.hero__meta-value {
  font-size: 12px;
  font-weight: 400;
  color: rgba(255,255,255,0.85);
}
.hero__meta-sep {
  width: 1px;
  height: 28px;
  background: rgba(255,255,255,0.15);
  flex-shrink: 0;
}

/* scroll cue */
.hero__scroll-cue {
  position: absolute;
  right: var(--space-10);
  bottom: 80px;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  animation: heroFadeUp 1.1s cubic-bezier(0.4, 0, 0.2, 1) 0.8s both;
}
.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.3);
  animation: scrollPulse 2.2s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.3; }
  50%       { transform: scaleY(0.5); opacity: 0.7; }
}
.hero__scroll-cue span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  writing-mode: vertical-rl;
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
.projects {
  padding: var(--space-24) 0;
  background: var(--paper);
}
.projects__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-12);
  gap: var(--space-8);
  flex-wrap: wrap;
}
.projects__header-left { flex-shrink: 0; }

/* filters */
.projects__filters {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  color: var(--stone);
  background: transparent;
  transition: all var(--trans-fast);
}
.filter-btn:hover { border-color: var(--ink-mid); color: var(--ink-mid); }
.filter-btn.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--surface);
}

/* grid */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 1100px) { .projects__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .projects__grid { grid-template-columns: 1fr; } }

/* --- Project Card --- */
.project-card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--trans-mid), box-shadow var(--trans-mid);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(26, 26, 24, 0.12);
}
.project-card.is-hidden {
  display: none;
}

.card__image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--surface-warm);
}
.card__image {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.project-card:hover .card__image { transform: scale(1.04); }

.card__hover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,24,0.85) 0%, rgba(26,26,24,0.3) 55%, transparent 100%);
  opacity: 0;
  transition: opacity var(--trans-mid);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
}
.project-card:hover .card__hover-overlay { opacity: 1; }

.card__hover-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.88);
  line-height: 1.5;
  transform: translateY(8px);
  transition: transform var(--trans-mid) 0.05s;
}
.project-card:hover .card__hover-desc { transform: translateY(0); }

/* card number badge */
.card__number {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.7);
  background: rgba(10,9,8,0.45);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.card__body {
  padding: var(--space-5) var(--space-5) var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.card__category {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.15;
}
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: auto;
}
.card__tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--stone);
}
.card__icons-row {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  padding-top: var(--space-3);
  border-top: 1px solid var(--rule);
}
.card__icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  opacity: 0.5;
  transition: opacity var(--trans-fast);
}
.card__icon-item:hover { opacity: 1; }
.card__icon-item svg {
  width: 16px; height: 16px;
  color: var(--ink-mid);
}
.card__icon-item span {
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--stone);
  white-space: nowrap;
}
.card__cta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-left: auto;
  padding: var(--space-2) 0;
  transition: letter-spacing var(--trans-fast);
}
.project-card:hover .card__cta { letter-spacing: 0.18em; }

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about {
  padding: var(--space-24) 0;
  background: var(--surface);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.about__inner {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--space-16);
  align-items: start;
}
@media (max-width: 900px) { .about__inner { grid-template-columns: 1fr; gap: var(--space-12); } }

.about__photo-wrap {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}
.about__photo {
  aspect-ratio: 3 / 4;
  max-width: 240px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-warm);
  border: 1px solid var(--rule);
}
.about__photo img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.about__photo-placeholder {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--stone);
}
.about__photo-placeholder svg { width: 60px; height: 60px; }
.about__photo-placeholder span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone);
}
.about__photo-caption {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.about__photo-caption strong {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
}
.about__photo-caption span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone);
}

.about__focus { margin-top: var(--space-6); }
.about__focus-title {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: var(--space-4);
}
.about__focus-list { display: flex; flex-direction: column; gap: var(--space-3); }
.about__focus-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 13px;
  color: var(--ink-mid);
}
.about__focus-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  color: var(--accent);
}

/* bio */
.about__bio {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.about__bio-lead {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.55;
  color: var(--ink);
  font-weight: 400;
}
.about__bio p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

.about__divider {
  height: 1px;
  background: var(--rule);
  margin: var(--space-8) 0;
}

.about__skills-title {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: var(--space-6);
}
.about__skills-list { display: flex; flex-direction: column; gap: var(--space-5); }
.about__skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}
.about__skill-name {
  font-size: 13px;
  color: var(--ink-mid);
}
.about__skill-level {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
}
.about__skill-bar {
  height: 2px;
  background: var(--rule);
  border-radius: 999px;
  overflow: hidden;
}
.about__skill-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.about__skill-fill.is-animated { width: var(--fill-target); }

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
  padding: var(--space-24) 0;
  background: var(--paper);
}
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
@media (max-width: 768px) { .contact__inner { grid-template-columns: 1fr; gap: var(--space-10); } }

.contact__sub {
  margin-top: var(--space-4);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  max-width: 380px;
}

.contact__links { display: flex; flex-direction: column; gap: var(--space-3); }
.contact__card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: all var(--trans-mid);
}
.contact__card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
  box-shadow: 0 4px 20px rgba(196, 114, 74, 0.1);
}
.contact__card-icon {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-pale);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  color: var(--accent-dark);
}
.contact__card-icon svg { width: 18px; height: 18px; }
.contact__card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.contact__card-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}
.contact__card-value {
  font-size: 13px;
  color: var(--ink-mid);
}
.contact__card-arrow {
  font-size: 18px;
  color: var(--rule);
  transition: color var(--trans-fast), transform var(--trans-fast);
}
.contact__card:hover .contact__card-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--ink);
  color: var(--surface);
  padding: var(--space-8) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.footer__left { display: flex; flex-direction: column; gap: 3px; }
.footer__name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
}
.footer__descriptor {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
}
.footer__nav {
  display: flex;
  gap: var(--space-6);
}
.footer__nav a {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  transition: color var(--trans-fast);
}
.footer__nav a:hover { color: rgba(255,255,255,0.85); }
.footer__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
}
.footer__copy, .footer__location {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.3);
}

/* ============================================================
   PROJECT DRAWER
   ============================================================ */
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 9, 8, 0.65);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans-mid);
  backdrop-filter: blur(3px);
}
.drawer-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 201;
  width: min(var(--drawer-w), 1160px);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.drawer.is-open { transform: translateX(0); }

/* drawer header */
.drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  height: 56px;
  border-bottom: 1px solid var(--rule);
  flex-shrink: 0;
  background: var(--surface);
}
.drawer__close {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast);
  color: var(--ink-mid);
}
.drawer__close:hover { background: var(--surface-warm); }
.drawer__close svg { width: 18px; height: 18px; }
.drawer__counter {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--stone);
}
.drawer__proj-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.drawer__nav-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  transition: all var(--trans-fast);
}
.drawer__nav-btn svg { width: 14px; height: 14px; }
.drawer__nav-btn:hover { color: var(--ink); border-color: var(--ink-mid); }

/* drawer body */
.drawer__body {
  display: grid;
  grid-template-columns: 1fr 420px;
  flex: 1;
  overflow: hidden;
}
@media (max-width: 900px) {
  .drawer__body { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
}

/* gallery column */
.drawer__gallery-col {
  display: flex;
  flex-direction: column;
  background: #0E0D0B;
  overflow: hidden;
}
.drawer__main-img-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  min-height: 0;
}
.drawer__main-img {
  width: 100%; height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}
.drawer__main-img.is-fading { opacity: 0; }

.drawer__img-label {
  position: absolute;
  bottom: var(--space-4);
  right: var(--space-4);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.4);
  background: rgba(0,0,0,0.4);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

/* thumbnails */
.drawer__thumbs {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  overflow-x: auto;
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  scrollbar-width: none;
}
.drawer__thumbs::-webkit-scrollbar { display: none; }
.drawer__thumb {
  flex-shrink: 0;
  width: 72px; height: 52px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: border-color var(--trans-fast), opacity var(--trans-fast);
  opacity: 0.55;
}
.drawer__thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.drawer__thumb.is-active { border-color: var(--accent); opacity: 1; }
.drawer__thumb:hover { opacity: 0.85; }

/* info column */
.drawer__info-col {
  padding: var(--space-8) var(--space-8) var(--space-6);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  border-left: 1px solid var(--rule);
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.drawer__project-type {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.drawer__project-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--ink);
  margin-top: var(--space-1);
}
.drawer__project-subtitle {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.6;
}

.drawer__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}
.drawer__tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--stone);
}

.drawer__rule {
  height: 1px;
  background: var(--rule);
  margin: var(--space-2) 0;
}

.drawer__description {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.drawer__description p {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-mid);
}
.drawer__description strong { color: var(--ink); font-weight: 600; }

/* icons grid in drawer */
.drawer__icons-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-4) 0;
}
.drawer__icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 60px;
}
.drawer__icon-wrap {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-warm);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--accent-dark);
  transition: background var(--trans-fast);
}
.drawer__icon-wrap:hover { background: var(--accent-pale); }
.drawer__icon-wrap svg { width: 18px; height: 18px; }
.drawer__icon-item span {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--stone);
  text-align: center;
  line-height: 1.3;
}

/* meta grid */
.drawer__meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.drawer__meta-item { display: flex; flex-direction: column; gap: 3px; }
.drawer__meta-label {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}
.drawer__meta-value {
  font-size: 13px;
  color: var(--ink-mid);
  font-weight: 400;
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--delay { transition-delay: 0.15s; }
.reveal--delay-2 { transition-delay: 0.3s; }

/* card reveal */
.project-card {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--trans-mid), border-color var(--trans-mid);
}
.project-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(26, 26, 24, 0.12);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .hero__content { padding: 0 var(--space-6) var(--space-16); }
  .hero__meta-strip { gap: var(--space-4); padding: var(--space-4) var(--space-6); }
  .hero__scroll-cue { display: none; }
}

@media (max-width: 768px) {
  :root { --nav-h: 56px; }
  .hero__meta-strip { flex-wrap: wrap; }
  .hero__meta-sep { display: none; }
  .about__photo { max-width: 180px; }
  .drawer__body { grid-template-columns: 1fr; overflow-y: auto; }
  .drawer__gallery-col { height: 55vw; min-height: 220px; flex-shrink: 0; }
  .drawer__info-col { border-left: none; border-top: 1px solid var(--rule); overflow-y: visible; }
  .drawer { width: 100%; }
  .drawer__meta-grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
  .footer__right { align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero__name em  { font-size: 2.4rem; }
  .hero__name strong { font-size: 2.8rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { text-align: center; justify-content: center; }
  .projects__header { flex-direction: column; align-items: flex-start; }
  .contact__inner { gap: var(--space-8); }
  .drawer__icons-grid { gap: var(--space-3); }
  .drawer__icon-item { flex: 0 0 52px; }
}