/* =========================================
   John Michael Buan — Portfolio Stylesheet
   Responsive layout, subtle motion, contact footer
   ========================================= */

/* ----- Design tokens ----- */
:root {
  --bg: #0B0D10;
  --card: #12151A;
  --card-hover: #171B22;
  --text: #EAF0F6;
  --muted: #A9B3C1;
  --accent: #F3C300;

  /* spacing scale */
  --space-1: 4px; --space-2: 8px; --space-3: 12px;
  --space-4: 16px; --space-5: 20px; --space-6: 24px;
  --space-8: 32px; --space-10: 40px; --space-12: 48px; --space-16: 64px;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow: 0 4px 10px rgba(0, 0, 0, .15);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, .25);

  --container-max: 1200px;
  --section-pad: var(--space-16);
  --gap: var(--space-6);
}

/* ========================
   RESET & BASE
   ======================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: url('bg.png') repeat;
  background-size: cover;
  animation: move-bg 40s linear infinite;
  line-height: 1.5;
}

@keyframes move-bg {
  0% { background-position: 1000px 0; }
  100% { background-position: 0 0; }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 90%;
  max-width: var(--container-max);
  margin: 0 auto;
}

section {
  padding-block: var(--section-pad);
}

/* ========================
   TYPOGRAPHY
   ======================== */
h1 { font-size: 56px; line-height: 1.1; }
h2 { font-size: 40px; margin: 1em 0 .5em; }
h3 { font-size: 28px; margin: .75em 0 .5em; }
p { font-size: 16px; color: var(--muted); margin: 0 0 1em; }

/* ========================
   BUTTONS
   ======================== */
.btn {
  font-size: 16px;
  padding: 0.75em 1.5em;
  text-decoration: none;
  display: inline-block;
  border-radius: var(--radius);
  transition: all .2s ease-out;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--text);
}

.btn:hover, .btn:focus { opacity: 0.9; }
.btn-ghost:hover { box-shadow: 0 0 10px rgba(243,195,0,.4); border-color: var(--accent); }
.btn-primary:hover { box-shadow: 0 0 10px rgba(243,195,0,.5); }

/* ========================
   HERO
   ======================== */
.hero-content {
  display: flex;
  align-items: center;
  gap: var(--gap);
}

.hero-text h1 { margin-bottom: 0.5em; }
.subline { color: var(--muted); margin: 0.5em 0 1em; }
.hero-visual { flex: 1; }

/* ========================
   SELECTED WORK
   ======================== */
.selected-work h2 {
  font-size: 2rem;
  margin-bottom: var(--space-10);
}

.selected-work .cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
  align-items: stretch;
}

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  background: var(--card-hover);
}

.card h3 {
  line-height: 1.3;
  display: inline-block;
  position: relative;
  padding-bottom: 2px;
  background: linear-gradient(var(--accent), var(--accent)) left bottom/0 2px no-repeat;
  transition: background-size .25s ease, transform .25s ease, color .25s ease;
}

.card:hover h3, .card:focus-within h3 {
  background-size: 100% 2px;
  transform: translateY(-2px);
}

.card .role {
  font-size: 14px;
  color: var(--accent);
  display: block;
  margin: .25em 0 .75em;
  transition: color .25s ease;
}

.card p {
  margin-top: 8px;
  transition: transform .25s ease, color .25s ease, opacity .25s ease;
}

.card .impact, .card .stack-chips {
  margin-top: 12px;
  font-size: .9rem;
  color: #ccc;
  transition: transform .25s ease, color .25s ease, opacity .25s ease;
}

.card:hover p, .card:hover .impact, .card:hover .stack-chips {
  transform: translateY(-2px);
  color: var(--text);
}

/* Card Footer */
.card-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-footer .media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 10px;
  transition: transform .3s ease, opacity .3s ease;
}

.card:hover .media img { transform: scale(1.03); opacity: .95; }

.card .btn {
  align-self: flex-start;
  margin-top: 0;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--text);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all .2s ease;
}

.card .btn:hover { background: var(--text); color: var(--card); }

/* ========================
   CAPABILITIES
   ======================== */
.capabilities {
  background: #0E1013;
}

.chips {
  display: flex;
  gap: var(--gap);
  flex-wrap: wrap;
}

.chip {
  background: #1E232C;
  padding: .5em 1em;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text);
}

/* ========================
   ABOUT
   ======================== */
.two-col {
  display: flex;
  gap: var(--gap);
  align-items: start;
}

.about-photo { flex: 1; }
.about-text { flex: 2; }

/* ========================
   CONTACT FORM (if added)
   ======================== */
.contact-form { max-width: 600px; margin: 0 auto; }
.form-group { margin: 0 0 1.5em; }
.form-group label { display: block; margin: 0 0 .5em; color: var(--muted); }
.form-group input, .form-group textarea {
  width: 100%;
  padding: .75em;
  border: 2px solid #1E232C;
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* ========================
   FOOTER CONTACT SECTION
   ======================== */
.site-footer {
  padding: 60px 0;
  background: #0E1013;
  color: var(--text);
  text-align: center;
  border-top: 1px solid #1E232C;
}

.site-footer h3 {
  font-size: 22px;
  color: var(--accent);
  margin-bottom: 1em;
  letter-spacing: 0.5px;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0 auto 1.5em;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.contact-list li {
  font-size: 15px;
  color: var(--muted);
}

.contact-list a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-list a:hover {
  color: var(--accent);
}

.credit {
  margin-top: 1.5em;
  font-size: 14px;
  color: #6F7785;
}

/* ===============================
   PAGE-LOAD SECTION ANIMATIONS
   =============================== */
section {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp .8s ease forwards;
}


section:nth-of-type(2) { animation-delay: .2s; }
section:nth-of-type(3) { animation-delay: .4s; }
section:nth-of-type(4) { animation-delay: .6s; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Respect user preferences */
@media (prefers-reduced-motion: reduce) {
  body { animation: none; }
  section { animation: none; opacity: 1; transform: none; }
  .card, .media img, .btn, a { transition: none; }
}

/* ========================
   RESPONSIVE DESIGN
   ======================== */
@media (max-width: 1023px) {
  h1 { font-size: 48px; }
  h2 { font-size: 34px; }
  h3 { font-size: 24px; }
  .hero-content { flex-direction: column; }
  section { padding-block: var(--space-12); }
  .selected-work .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .two-col { flex-direction: column; }
  .selected-work .cards { grid-template-columns: 1fr; }
  section { padding-block: var(--space-10); }
}

@media (max-width: 479px) {
  h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  .btn { width: 100%; text-align: center; margin: .5em 0; }
  .container { width: 92%; }
  .contact-list li { font-size: 14px; }
}