/* =========================================================
   Joshua Visperas — Portfolio
   style.css  (shared across index + case study pages)
   ========================================================= */

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, video { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:        #F7F5F1;
  --surface:   #FFFFFF;
  --black:     #111111;
  --gray-100:  #EFECE8;
  --gray-200:  #E2DED9;
  --gray-400:  #A09C97;
  --gray-600:  #6B6866;
  --gray-800:  #2A2927;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;

  --nav-h:    72px;
  --max-w:    1160px;
  --gap-xl:   8rem;
  --gap-lg:   5rem;
  --gap-md:   2.5rem;
  --r-sm:     4px;
  --r-md:     8px;

  --ease:     cubic-bezier(0.4, 0, 0.2, 1);
  --dur:      240ms;
}

/* ── Base ───────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--black);
  font-size: 1rem;
  line-height: 1.6;
}

/* ── Upwork mode — applied to <html> before first paint ── */
html.upwork-mode .contact-only { display: none !important; }

html.upwork-mode .upwork-badge { display: flex !important; }

/* ── Container ──────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Labels & headings ──────────────────────────────────── */
.section-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.015em;
}
.section-header { margin-bottom: 3.5rem; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.025em;
  border-radius: var(--r-sm);
  transition: transform var(--dur) var(--ease),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--black);
  color: var(--surface);
}
.btn-primary:hover {
  background: var(--gray-800);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.btn-ghost {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--gray-200);
}
.btn-ghost:hover {
  border-color: var(--black);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ── Navigation ─────────────────────────────────────────── */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(247, 245, 241, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}
.nav.scrolled { border-bottom-color: var(--gray-200); }

.nav-logo {
  position: relative;
  display: inline-block;
  line-height: 1;
  z-index: 10;
}
.logo-word {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--black);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem;
  color: var(--gray-600);
  transition: color var(--dur) var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--black); }

.nav-cta {
  color: var(--black) !important;
  font-weight: 500 !important;
  position: relative;
  padding-bottom: 2px;
}
.nav-cta::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: currentColor;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 4px 0;
  z-index: 10;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--black);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
  transform-origin: center;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: rgba(247, 245, 241, 0.96);
  backdrop-filter: blur(16px);
  z-index: 190;
  padding: 2rem;
  flex-direction: column;
  gap: 1.75rem;
  font-size: 1.5rem;
  font-family: var(--font-display);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  pointer-events: none;
}
.nav-drawer.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.nav-drawer a {
  color: var(--black);
  transition: color var(--dur) var(--ease);
}
.nav-drawer a:hover { color: var(--gray-600); }

/* ── Sections ───────────────────────────────────────────── */
.section { padding: var(--gap-xl) 0; }
.section-alt { background: var(--gray-100); }

/* ── Real images inside card containers ─────────────────── */
.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 480ms var(--ease);
}
.case-study-card:hover .card-image img { transform: scale(1.04); }

/* ── Scroll animations ──────────────────────────────────── */
[data-anim] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
}
[data-anim].visible {
  opacity: 1;
  transform: translateY(0);
}
[data-anim][data-delay="1"] { transition-delay: 100ms; }
[data-anim][data-delay="2"] { transition-delay: 200ms; }
[data-anim][data-delay="3"] { transition-delay: 300ms; }
[data-anim][data-delay="4"] { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  [data-anim] { opacity: 1; transform: none; transition: none; }
  .btn { transition: none; }
}

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 5rem) 2rem 5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 2rem;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: var(--gray-400);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -0.025em;
  margin-bottom: 1.75rem;
  max-width: 840px;
}
.hero-headline em {
  font-style: italic;
  color: var(--gray-600);
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--gray-600);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 2.75rem;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 3rem;
  left: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-400);
}
.scroll-line {
  width: 40px;
  height: 1px;
  background: var(--gray-400);
  animation: scrollPulse 2.4s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { width: 40px; opacity: 1; }
  50%       { width: 56px; opacity: 0.5; }
}

/* ── Work Grid ──────────────────────────────────────────── */
/*
   TO ADD A NEW CASE STUDY:
   1. Duplicate one of the <article class="case-study-card"> blocks below
   2. Update the href, tag, year, title, description, and --hue value
   3. Create a new case-study-N.html from case-study-template.html
   That's it — no config files to update.
*/
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 500px), 1fr));
  gap: 3px;
}
.case-study-card {
  background: var(--surface);
  overflow: hidden;
  transition: transform 360ms var(--ease), box-shadow 360ms var(--ease);
}
.case-study-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.09);
}
.card-link { display: block; }
.card-image {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.card-image-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    140deg,
    hsl(var(--hue, 210), 20%, 90%) 0%,
    hsl(calc(var(--hue, 210) + 15), 14%, 82%) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 480ms var(--ease);
}
.card-image-placeholder .placeholder-label {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: hsl(var(--hue, 210), 10%, 60%);
}
.case-study-card:hover .card-image-placeholder { transform: scale(1.04); }

.card-body { padding: 2rem 2rem 2.25rem; }
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.875rem;
}
.card-tag {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
}
.card-year {
  font-size: 0.75rem;
  color: var(--gray-400);
}
.card-title {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}
.card-desc {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: gap var(--dur) var(--ease);
}
.case-study-card:hover .card-arrow { gap: 0.875rem; }

/* ── About ──────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 7rem;
  align-items: start;
}
.about-bio {
  font-size: 1.0625rem;
  color: var(--gray-800);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.about-bio + .skills { margin-top: 0.75rem; }

.skills { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; }
.skill-tag {
  padding: 0.375rem 0.875rem;
  background: var(--gray-200);
  border-radius: 100px;
  font-size: 0.8125rem;
  color: var(--gray-800);
}

/* ── Process ────────────────────────────────────────────── */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
}
.process-step {
  background: var(--surface);
  padding: 2.5rem 2rem 2.75rem;
}
.step-num {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--gray-400);
  margin-bottom: 2rem;
}
.step-title {
  font-family: var(--font-display);
  font-size: 1.3125rem;
  font-weight: 400;
  margin-bottom: 0.875rem;
}
.step-desc {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ── Contact ────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 7rem;
  align-items: start;
}
.contact-sub {
  font-size: 1.0625rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-top: 1.75rem;
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gray-800);
  letter-spacing: 0.02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--black);
  background: var(--surface);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-sm);
  padding: 0.8125rem 1rem;
  width: 100%;
  outline: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  -webkit-appearance: none;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--gray-400); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(17, 17, 17, 0.06);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A09C97' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.75rem;
  cursor: pointer;
}
.form-group select option[value=''] { color: var(--gray-400); }

.form-success {
  display: none;
  text-align: center;
  padding: 2.5rem;
  background: var(--gray-100);
  border-radius: var(--r-md);
}
.form-success.visible { display: block; }
.form-success h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}
.form-success p { color: var(--gray-600); }

/* ── Upwork badge ───────────────────────────────────────── */
.upwork-badge {
  display: none;
  align-items: center;
  gap: 0.5rem;
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  background: var(--surface);
  border: 1px solid var(--gray-200);
  border-radius: 100px;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  color: var(--gray-600);
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
  pointer-events: none;
}
.upwork-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6FDA44;
  flex-shrink: 0;
}

/* ── Footer ─────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--gray-200);
  padding: 2.25rem 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-name { font-family: var(--font-display); font-size: 1rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a {
  font-size: 0.875rem;
  color: var(--gray-600);
  transition: color var(--dur) var(--ease);
}
.footer-links a:hover { color: var(--black); }
.footer-copy { font-size: 0.8125rem; color: var(--gray-400); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --gap-xl: 6rem; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { gap: 4rem; }
  .contact-grid { gap: 4rem; }
}

@media (max-width: 768px) {
  :root { --gap-xl: 5rem; }
  .nav-links, .nav-links .contact-only { display: none; }
  .nav-toggle { display: flex; }
  .nav-drawer { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .form-row { grid-template-columns: 1fr; }
  .hero {
    padding: calc(var(--nav-h) + 3rem) 1.5rem 4rem;
  }
  .container { padding: 0 1.5rem; }
  .nav { padding: 0 1.5rem; }
}

@media (max-width: 560px) {
  .process-grid { grid-template-columns: 1fr; }
  .hero-scroll { display: none; }
  .footer-inner { flex-direction: column; text-align: center; gap: 0.75rem; }
}
