/* =========================================
   ADRIAN BARRAMEDA — PORTFOLIO STYLES
   ========================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink:        #111111;
  --ink-light:  #555555;
  --paper:      #F9F7F4;
  --paper-2:    #F0EDE8;
  --accent:     #0E3768;
  --accent-2:   #2A2A2A;
  --white:      #FFFFFF;
  --border:     rgba(0,0,0,0.1);


  --font-sans:  'Roboto', sans-serif;
  --font-primary: 'Roboto', sans-serif;

  --radius:     12px;
  --radius-sm:  6px;
  --max-w:      1200px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; }

/* ── NAV ─────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(249,247,244,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: var(--ink);
  transition: color var(--transition);
}
.nav-back { display: flex; align-items: center; gap: 0.5rem; }
.nav-back:hover { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-light);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--ink); }

/* ── BUTTONS ─────────────────────────────── */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: #333; transform: translateY(-2px); }

.btn-outline {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border: 1.5px solid var(--ink);
  color: var(--ink);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-outline:hover { background: var(--ink); color: var(--white); transform: translateY(-2px); }

/* ── HOME HERO ───────────────────────────── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 8rem 3rem 5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  gap: 4rem;
}

.hero-tag {
  display: inline-block;
  background: var(--paper-2);
  border: 1px solid var(--border);
  padding: 0.35rem 1rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-light);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}
.hero-title em {
  font-style: italic;
  color: var(--accent);
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--ink-light);
  margin-bottom: 2.5rem;
  max-width: 480px;
}
.hero-desc strong { color: var(--ink); font-weight: 600; }

.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-avatar {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-avatar img {
  width: min(380px, 100%);
  border-radius: 50%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 4px solid var(--paper-2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.12);
  transition: transform 0.4s ease;
}
.hero-avatar img:hover { transform: scale(1.03); }

/* ── WORK SECTION ────────────────────────── */
.work {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 4rem 3rem 6rem;
}

.work-header {
  margin-bottom: 3rem;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.work-header h2 {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 3rem);
}

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

.project-card--large {
  grid-column: span 2;
}

.project-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.4s ease;
}
.project-card:hover .card-img-wrap img { transform: scale(1.05); }

.card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(17,17,17,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  color: var(--white);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.04em;
}
.project-card:hover .card-overlay { opacity: 1; }

.card-info {
  padding: 1.5rem;
}
.card-tags { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; flex-wrap: wrap; }

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--paper-2);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tag--role { background: rgba(200,169,110,0.15); color: #0E3768; }

.card-info h3 {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}
.card-info p { font-size: 0.9rem; color: var(--ink-light); }

/* ── FOOTER ──────────────────────────────── */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 3rem;
  border-top: 1px solid var(--border);
  background: var(--paper-2);
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-left p { color: var(--ink-light); margin-bottom: 1rem; }
.footer-right { font-size: 0.85rem; color: var(--ink-light); }

/* ── SUBPAGE LAYOUT ──────────────────────── */
.subpage { }

.case-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  max-width: var(--max-w);
  margin: 80px auto 0;
  min-height: 100vh;
}

/* SIDEBAR TOC */
.toc-sidebar {
  position: sticky;
  top: 80px;
  height: calc(100vh - 80px);
  overflow-y: auto;
  padding: 3rem 1.5rem 3rem 3rem;
  border-right: 1px solid var(--border);
  display: block;
}

.toc-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.toc-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.toc-link {
  display: block;
  font-size: 0.82rem;
  color: var(--ink-light);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition);
  line-height: 1.4;
}
.toc-link:hover {
  color: var(--ink);
  background: var(--paper-2);
  border-left-color: var(--accent);
}
.toc-link.active {
  color: var(--ink);
  background: var(--paper-2);
  border-left-color: var(--accent);
  font-weight: 500;
}

/* INLINE TOC (mobile only) */
.toc-inline {
  display: none;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}
.toc-inline .toc-nav { gap: 0.5rem; }
.toc-inline .toc-link { border-left: none; padding: 0.4rem 0; border-bottom: 1px dashed var(--border); }
.toc-inline .toc-link:last-child { border-bottom: none; }

/* CASE STUDY MAIN */
.case-main {
  padding: 3rem 4rem 6rem 3rem;
  max-width: 800px;
}

.case-hero-img {
  border-radius: var(--radius);
  overflow: hidden;
  padding-top: 2rem;
  margin-bottom: 3rem;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}
.case-hero-img img { object-fit: cover; aspect-ratio: 16/9; }

.case-intro { margin-bottom: 3rem; }

.case-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.meta-block {}
.meta-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-light);
  margin-bottom: 0.35rem;
}
.meta-value { font-size: 0.9rem; font-weight: 500; }

.case-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.case-subtitle {
  font-size: 1.1rem;
  color: var(--ink-light);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.case-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* CASE SECTIONS */
.case-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}
.case-section:last-child { border-bottom: none; }

.section-number {
  font-family: var(--font-sans);
  font-size: 4rem;
  color: var(--paper-2);
  line-height: 1;
  margin-bottom: -1rem;
  font-style: italic;
}

.case-section h2 {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 1.5rem;
}

.case-section h3 {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  margin: 2.5rem 0 1rem;
}

.case-section h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }

.case-section p {
  color: var(--ink-light);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.styled-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.styled-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--ink-light);
  font-size: 1rem;
}
.styled-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

/* STATS ROW */
.stat-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius);
  margin: 2rem 0;
  flex-wrap: wrap;
}
.stat-block { text-align: center; flex: 1; }
.stat-num { display: block; font-family: var(--font-serif); font-size: 3rem; line-height: 1; }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-top: 0.25rem; display: block; }
.stat-arrow { font-size: 1.5rem; color: var(--accent); }

/* INSIGHT CARDS */
.insight-card {
  background: var(--paper-2);
  border-left: 3px solid var(--ink-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.25rem 1.5rem;
  margin: 1rem 0;
}
.insight-card--positive { border-left-color: var(--accent); }
.insight-card h4 { color: var(--ink); }
.insight-card p { margin: 0; font-size: 0.9rem; }

/* INSIGHTS GRID */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0;
}
.insight-pill {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  font-size: 0.875rem;
  color: var(--ink-light);
  line-height: 1.5;
}

/* FLOW ROW */
.flow-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}
.flow-step {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  flex: 1;
  min-width: 150px;
  text-align: center;
}
.flow-arrow { color: var(--accent); font-size: 1.5rem; font-weight: 700; }

/* OUTCOMES */
.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.outcome-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}
.outcome-num {
  display: block;
  font-family: var(--font-sans);
  font-size: 2.5rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.75rem;
}
.outcome-card p { font-size: 0.875rem; color: var(--ink-light); margin: 0; }

.case-outcomes {
  background: var(--ink);
  border-radius: var(--radius);
  padding: 3rem !important;
  color: var(--white);
  margin: 2rem 0;
  border: none !important;
}
.case-outcomes h2 { color: var(--white); }
.case-outcomes .outcome-card { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.1); }
.case-outcomes .outcome-card p { color: rgba(255,255,255,0.6); }

/* CASE IMAGE */
.case-img {
  border-radius: var(--radius);
  overflow: hidden;
  margin: 1.5rem 0;
  background: var(--paper-2);
}
.case-img img {
  border-radius: var(--radius);
  transition: transform 0.4s ease;
}
.case-img:hover img { transform: scale(1.01); }
.img-caption { font-size: 0.8rem; color: var(--ink-light); text-align: center; padding: 0.5rem 1rem; }

/* USER GOALS */
.user-goals-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}
.user-goal {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.goal-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.user-goal h4 { font-family: var(--font-sans); font-size: 1.1rem; margin-bottom: 0.5rem; }
.user-goal p { font-size: 0.875rem; color: var(--ink-light); margin: 0 0 1rem; }
.user-goal img { border-radius: var(--radius-sm); margin-top: 0.75rem; }

/* TWO COL */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 1.5rem 0;
}

/* OTHER PROJECTS */
.other-projects {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}
.other-project-card {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.other-project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.other-project-card img {
  width: 70px;
  height: 55px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.other-project-card h4 { font-size: 0.9rem; font-weight: 600; margin-top: 0.35rem; }

/* ── MOBILE RESPONSIVE ───────────────────── */
@media (max-width: 900px) {
  .nav { padding: 1rem 1.5rem; }
  .nav-links { gap: 1.25rem; }

  .hero {
    grid-template-columns: 1fr;
    padding: 6rem 1.5rem 3rem;
    text-align: center;
    gap: 2.5rem;
  }
  .hero-inner { order: 2; }
  .hero-avatar { order: 1; }
  .hero-desc { max-width: 100%; }
  .hero-cta { justify-content: center; }
  .hero-avatar img { width: min(240px, 70%); }

  .work { padding: 3rem 1.5rem 4rem; }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .project-card--large { grid-column: span 1; }

  .footer { padding: 2rem 1.5rem; flex-direction: column; align-items: flex-start; }

  /* SUBPAGE */
  .case-layout {
    grid-template-columns: 1fr;
    margin-top: 64px;
  }
  .toc-sidebar { display: none; }
  .toc-inline { display: block; }
  .case-main { padding: 1.5rem 1.5rem 4rem; max-width: 100%; }

  .case-meta-grid { grid-template-columns: 1fr 1fr; }

  .user-goals-grid, .two-col, .other-projects { grid-template-columns: 1fr; }

  .stat-row { flex-direction: column; gap: 1.5rem; }
  .stat-arrow { transform: rotate(90deg); }

  .flow-row { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }

  .section-number { font-size: 3rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .case-title { font-size: 2rem; }
  .case-meta-grid { grid-template-columns: 1fr; }
  .outcomes-grid { grid-template-columns: 1fr 1fr; }
  .btn-primary, .btn-outline { padding: 0.65rem 1.25rem; font-size: 0.85rem; }
}