/* ============================================================
   GLOBALS
   Base layout, structural components, animations.
   Imports all partials in correct order.
   ============================================================ */

/* ── Font loading ── */
/* To change fonts: update the URL below AND --font-display / --font-body in tokens.css */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,600;0,700;1,600;1,700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

/* ── Partials ── */
@import './tokens.css';
@import './typography.css';
@import './buttons.css';

/* ── Custom cursor ── */
.cursor {
  position: fixed; width: 8px; height: 8px;
  background: var(--accent); border-radius: 50%;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}
.cursor-ring {
  position: fixed; width: 36px; height: 36px;
  border: 1px solid rgba(204,255,0,0.4); border-radius: 50%;
  pointer-events: none; z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition: all 0.18s ease;
}
body:has(a:hover) .cursor-ring,
body:has(button:hover) .cursor-ring {
  transform: translate(-50%,-50%) scale(1.8);
  border-color: var(--accent);
}

/* ── Page layer ── */
.page { position: relative; z-index: var(--z-content); }

/* ── Nav ── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px var(--section-pad-x);
  transition: background 0.4s, padding 0.4s;
}
nav.scrolled {
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  padding: 18px var(--section-pad-x);
}
.nav-links { display: flex; gap: 36px; align-items: center; }

/* ── Hero ── */
#hero {
  min-height: 100vh; display: flex; flex-direction: column;
  justify-content: flex-end;
  padding: 0 var(--section-pad-x) 100px;
  position: relative;
}
.hero-bottom {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--space-10); flex-wrap: wrap;
}
.hero-ctas { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; right: var(--section-pad-x);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--gray); font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
}
.scroll-line {
  width: 1px; height: 60px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%,100% { opacity:0.3; transform:scaleY(1); }
  50%      { opacity:1;   transform:scaleY(1.2); }
}

/* ── About ── */
#about {
  padding: var(--section-pad-y) var(--section-pad-x);
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 100px; align-items: center;
}
.skills-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
.skill-tag {
  border: 1px solid var(--gray-mid); padding: 7px 16px;
  font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray);
  transition: all 0.25s;
}
.skill-tag:hover { border-color: var(--accent); color: var(--accent); }
.about-right { position: relative; }
.about-img-placeholder {
  width: 100%; aspect-ratio: 3/4; background: var(--gray-dark);
  display: flex; align-items: center; justify-content: center;
}
.about-img-placeholder::after {
  content: 'Photo'; color: var(--gray); font-size: 12px;
  letter-spacing: 0.2em; text-transform: uppercase;
}
.about-accent-box {
  position: absolute; bottom: -24px; right: -24px;
  width: 120px; height: 120px; border: 1px solid var(--accent); z-index: -1;
}
.about-stats { margin-top: 48px; display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-6); }

/* ── Work ── */
#work { padding: 120px var(--section-pad-x); }
.work-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: var(--space-20); flex-wrap: wrap; gap: var(--space-6);
}
.category-tabs { display: flex; gap: 0; margin-bottom: 60px; }
.category-section { display: none; }
.category-section.active { display: block; }
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 2px;
}

/* ── Project Card ── */
.project-card {
  position: relative; overflow: hidden; background: var(--gray-dark);
  aspect-ratio: 4/3; cursor: none;
  text-decoration: none; display: block;
}
.project-card-inner {
  position: absolute; inset: 0; background: var(--gray-dark);
  transition: transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.project-card:hover .project-card-inner { transform: scale(1.04); }
.project-img-placeholder {
  width: 100%; height: 100%; background: var(--gray-dark);
  display: flex; align-items: center; justify-content: center;
  color: #333; font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
}
.project-img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center top;
  display: block;
}
.project-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 60%);
  padding: 32px; display: flex; flex-direction: column; justify-content: flex-end;
  transition: background 0.4s;
}
.project-card:hover .project-overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.2) 60%);
}
.project-arrow {
  position: absolute; top: 28px; right: 28px;
  width: 44px; height: 44px; border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 18px;
  transform: translateY(-8px); opacity: 0;
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
}
.project-card:hover .project-arrow {
  transform: translateY(0); opacity: 1;
  border-color: var(--accent); color: var(--accent);
}

/* ── Project Pages ── */
.project-page { display: none; }
.project-page.active { display: block; }
.project-hero {
  min-height: 80vh; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 0 var(--section-pad-x) 80px; position: relative; overflow: hidden;
}
.project-hero-bg {
  position: absolute; inset: 0; background: var(--gray-dark);
  display: flex; align-items: center; justify-content: center;
  color: #222; font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
}
.project-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,1) 0%, rgba(0,0,0,0.3) 100%);
}
.project-hero-content { position: relative; z-index: 2; }
.project-back {
  position: absolute; top: 120px; left: var(--section-pad-x); z-index: 10;
  color: var(--gray); font-size: 12px; letter-spacing: 0.15em; text-transform: uppercase;
  text-decoration: none; display: flex; align-items: center; gap: 10px;
  transition: color 0.25s; cursor: none;
}
.project-back:hover { color: var(--accent); }
.project-back::before { content: '←'; font-size: 16px; }
.project-meta-row { display: flex; gap: 48px; flex-wrap: wrap; margin-bottom: var(--space-6); }
.meta-item .meta-label {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gray); margin-bottom: 4px;
}
.meta-item .meta-value { font-size: 14px; color: var(--white); }
.project-content { padding: 100px var(--section-pad-x); max-width: 1200px; margin: 0 auto; }
.project-section { margin-bottom: var(--space-20); }
.project-img-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; margin: 40px 0; }
.project-img-grid .img-box {
  aspect-ratio: 16/10; background: var(--gray-dark);
  display: flex; align-items: center; justify-content: center;
  color: #333; font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase;
}
.project-img-grid.full { grid-template-columns: 1fr; }
.project-img-grid.full .img-box { aspect-ratio: 16/7; }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; margin: 40px 0; }
.process-step { padding: 28px 20px; background: var(--gray-dark); text-align: center; }
.placeholder-note {
  border-left: 2px solid var(--accent); padding: 12px 20px;
  background: rgba(204,255,0,0.04); color: var(--gray);
  font-size: 13px; font-style: italic; margin: 20px 0;
}

/* ── Contact ── */
#contact { padding: var(--section-pad-y) var(--section-pad-x); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: start; }
.contact-links { display: flex; flex-direction: column; gap: var(--space-5); }
.contact-link {
  display: flex; align-items: center; gap: var(--space-4);
  color: var(--white); text-decoration: none; font-size: 15px;
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--gray-dark);
  transition: all 0.3s; position: relative; overflow: hidden;
}
.contact-link::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 0;
  background: var(--accent); transition: width 0.3s; z-index: 0;
}
.contact-link:hover::before { width: 4px; }
.contact-link:hover { border-color: var(--accent); color: var(--accent); transform: translateX(4px); }
.contact-link span, .contact-link-icon { position: relative; z-index: 1; }
.contact-link-icon { font-size: 20px; }

/* ── Contact form ── */
.contact-form { display: flex; flex-direction: column; gap: var(--space-5); }
.form-group { position: relative; }
.form-input, .form-textarea {
  width: 100%; background: transparent; border: none;
  border-bottom: 1px solid var(--gray-mid); padding: var(--space-4) 0;
  color: var(--white); font-family: var(--font-body); font-size: 15px;
  outline: none; transition: border-color 0.3s; resize: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--gray); }
.form-input:focus, .form-textarea:focus { border-color: var(--accent); }
.form-label {
  position: absolute; top: 16px; left: 0;
  font-size: 12px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
  transition: all 0.25s; pointer-events: none;
}
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label,
.form-textarea:focus ~ .form-label,
.form-textarea:not(:placeholder-shown) ~ .form-label {
  top: -12px; font-size: 10px; color: var(--accent);
}
.form-success {
  display: none; padding: 28px 32px; border: 1px solid var(--accent);
  color: var(--accent); font-size: 15px; line-height: 1.6; border-radius: var(--radius);
  opacity: 0; transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.form-success.visible { opacity: 1; transform: translateY(0); }
.form-success .success-title {
  font-family: var(--font-display); font-size: 20px; font-weight: 700;
  letter-spacing: -0.01em; margin-bottom: 8px;
}
.form-success .success-sub { color: rgba(204,255,0,0.65); font-size: 14px; }

/* ── Footer ── */
footer {
  padding: 48px var(--section-pad-x);
  border-top: 1px solid var(--gray-dark);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: var(--space-6);
}
.footer-links { display: flex; gap: var(--space-6); }

/* ── Divider ── */
.divider { height: 1px; background: var(--gray-dark); margin: 0 var(--section-pad-x); }

/* ── Fade-in animation ── */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 900px) {
  #about { grid-template-columns: 1fr; gap: 60px; }
  .contact-grid { grid-template-columns: 1fr; gap: 60px; }
  .projects-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2,1fr); }
  .project-img-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 20px; }
}

/* ── Hidden cards (expand/collapse) ── */
.project-card.hidden-card {
  display: none;
}

.project-card.card-expanding {
  animation: cardReveal 0.3s ease forwards;
}

@keyframes cardReveal {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Expand toggle row ── */
.expand-toggle-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid #1a1a1a;
}

.expand-count {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
  min-width: 130px;
}

.expand-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid #2a2a2a;
  color: #888;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s;
}

.expand-toggle-btn:hover,
.expand-toggle-btn:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.expand-toggle-btn:focus-visible {
  box-shadow: 0 0 0 2px rgba(204, 255, 0, 0.25);
}

.expand-chevron {
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.expand-toggle-btn[aria-expanded="true"] .expand-chevron {
  transform: rotate(180deg);
}

/* ── About profile image & geometric overlay ── */
.about-img-wrap {
  position: relative;
  width: 100%;
  overflow: visible; /* lets overlay extend below */
}
.about-img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.about-geo-overlay {
  position: absolute;
  bottom: -2px;       /* sits flush at bottom, extends past edge */
  left: 0;
  width: 100%;
  height: 55%;        /* covers lower ~55% of image */
  pointer-events: none;
  z-index: 2;
}
.about-geo-svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;  /* allows shadow + glow to bleed outside */
}

/* ── Process steps — clickable links ── */
.process-step-link {
  text-decoration: none;
  display: block;
  transition: background 0.2s, transform 0.2s;
}
.process-step-link:hover {
  background: #222;
  transform: translateY(-3px);
}
.process-step-link:hover .step-num {
  color: var(--white);
}
.process-step-link:hover .step-name {
  color: var(--accent);
}
.process-step-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── Lightbox ── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: 0 0 60px rgba(0,0,0,0.8);
}
.lightbox-close {
  position: fixed;
  top: 24px; right: 32px;
  color: #fff; font-size: 32px;
  cursor: pointer; line-height: 1;
  opacity: 0.7; transition: opacity 0.2s;
}
.lightbox-close:hover { opacity: 1; }
.project-img-grid img { cursor: zoom-in; }

/* ── Project subsections ── */
.project-subsection {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.project-subsection-heading {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 16px;
}