/* ============================================================
   Çağla Akın — personal site
   Structure: fixed left panel + vertically scrolling content.
   Fonts: Archivo Black + Archivo.
   Palette: cream-to-white gradient, warm black, terracotta accent.
   ============================================================ */

:root {
  --bg-top: #060505;
  --bg-mid: #0e0c0a;
  --bg-end: #14110d;
  --ink: #ffffff;
  --ink-soft: #cfc9bd;
  --hairline: #2b2822;
  --accent: #d06a42;
  --accent-deep: #e0885d;
  --card: rgba(255, 255, 255, 0.04);
  --dark-bg: #0a0908;
  --dark-ink: #ffffff;
  --dark-soft: #c4bdb0;
  --dark-hairline: #2b2822;
  --sidebar-w: clamp(240px, 24vw, 320px);
  --pad: clamp(1.25rem, 4vw, 3.5rem);
  --heading-font: "Archivo Black", "Archivo", Helvetica, Arial, sans-serif;
  --body-font: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--body-font);
  background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-mid) 45%, var(--bg-end) 100%);
  background-attachment: fixed;
  color: var(--ink);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: #fff; }

/* ---------- reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   LEFT PANEL
   ============================================================ */
.sidebar {
  --ink: #191510;
  --ink-soft: #5f584a;
  --hairline: #ded3ba;
  --accent: #c05e3c;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.5rem, 3vw, 2.75rem);
  background: linear-gradient(180deg, #f6efe0 0%, #efe5cf 100%);
  color: var(--ink);
  border-right: 1px solid #2b2822;
  overflow-y: auto;
}

.sidebar-photo { margin-bottom: 1.6rem; }
.photo-placeholder.square {
  aspect-ratio: 1 / 1;
  max-width: 150px;
}

.sidebar-name {
  font-family: var(--heading-font);
  font-size: clamp(1.6rem, 2.2vw, 2.1rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: 1.1rem;
}

.sidebar-tagline {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin-bottom: 2.4rem;
  max-width: 24ch;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.sidebar-nav a {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  width: fit-content;
  position: relative;
  transition: color 0.3s ease;
}
.sidebar-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -3px;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.sidebar-nav a:hover, .sidebar-nav a.active { color: var(--ink); }
.sidebar-nav a:hover::after, .sidebar-nav a.active::after { transform: scaleX(1); }

.sidebar-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  padding-top: 2rem;
}
.sidebar-social a {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color 0.3s ease;
}
.sidebar-social a:hover { color: var(--accent); }

/* ============================================================
   CONTENT AREA
   ============================================================ */
.content {
  margin-left: var(--sidebar-w);
}

/* ---------- hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem var(--pad) 3rem;
}
.hero-title {
  font-family: var(--heading-font);
  font-size: clamp(3rem, 7vw, 6.2rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--accent);
}
.hero-roles {
  margin-top: 1.4rem;
  font-size: clamp(1rem, 1.6vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
}
.hero-sub {
  margin-top: 2.4rem;
  max-width: 46ch;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--ink-soft);
}
.hero-sub em { font-style: italic; font-weight: 700; color: var(--accent-deep); }
.hero-sub strong { font-weight: 600; color: var(--ink); }
.hero-ticker {
  margin-top: auto;
  padding: 1.1rem 0;
  border-top: 1px solid var(--hairline);
  overflow: hidden;
  white-space: nowrap;
}
.ticker-track {
  display: inline-flex;
  width: max-content;
  animation: ticker 36s linear infinite;
}
.ticker-track span {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}

/* ---------- sections ---------- */
.section {
  padding: clamp(4rem, 8vw, 7rem) var(--pad);
  border-top: 1px solid var(--hairline);
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 1.4rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--accent);
}
.section-head h2 {
  font-family: var(--heading-font);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.lead {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-weight: 400;
  line-height: 1.45;
  margin-bottom: 1.6rem;
}

/* ---------- about ---------- */
.about-lead {
  font-size: 1.02rem;
  font-weight: 400;
  color: var(--ink);
  max-width: 1080px;
  margin: -1.5rem 0 2.8rem;
}
.about-top {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  max-width: 1080px;
}
.about-facts {
  list-style: none;
  border-top: 1px solid var(--hairline);
}
.about-facts li {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.92rem;
}
.about-facts li span {
  flex: 0 0 90px;
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 0.35em;
}

.about-text {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  max-width: 1080px;
}
.about-text p {
  margin-bottom: 1.3rem;
  color: var(--ink-soft);
  max-width: 78ch;
  text-align: justify;
}
.about-text p.lead { color: var(--ink); }
.about-text strong { font-weight: 600; color: var(--ink); }
.inline-link {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
  transition: color 0.3s ease;
}
.inline-link:hover { color: var(--accent); }

.resume-link {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.8rem 1.6rem;
  border: 1px solid var(--ink);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.resume-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- photos ---------- */
.photo-frame {
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 4px;
}
.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-frame.square {
  aspect-ratio: 1 / 1;
  max-width: 150px;
}
.photo-frame.square img { object-position: 50% 22%; }
.photo-frame.portrait { aspect-ratio: 4 / 5; }
.photo-frame.portrait img { object-position: 50% 30%; }
.photo-frame.wide {
  aspect-ratio: 16 / 9;
  border-color: var(--dark-hairline);
}
.photo-frame.wide img { object-position: 50% 32%; }
.photo-frame.tall {
  aspect-ratio: 4 / 5;
  border-color: var(--dark-hairline);
}
.photo-frame.tall img { object-position: 50% 30%; }

/* ---------- placeholders ---------- */
.photo-placeholder {
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, #ece1c9 0%, #e3d6ba 100%);
  border: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: center;
}
.photo-placeholder span {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #a89b7d;
  text-align: center;
  padding: 0 1rem;
}
.photo-placeholder.dark {
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #1c1915 0%, #262119 100%);
  border-color: var(--dark-hairline);
}
.photo-placeholder.dark span { color: #5f584a; }

/* ---------- work / expertise ---------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
  max-width: 1080px;
}
.exp {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 1.8rem 1.9rem;
  transition: border-color 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
}
.exp:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
}
.exp h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}
.exp h3::before {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  background: var(--accent);
  margin-bottom: 0.9rem;
}
.exp p {
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.feature {
  max-width: 1080px;
  margin-top: 2.6rem;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  background: var(--card);
  padding: 2.2rem 2rem;
}
.feature-tag {
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.feature h3 {
  font-family: var(--heading-font);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.feature p {
  color: var(--ink-soft);
  max-width: 72ch;
  margin-bottom: 1.6rem;
}

.project-links, .music-links, .contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.8rem;
}
.project-links a, .music-links a, .contact-links a {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  transition: color 0.3s ease;
}
.project-links a:hover, .contact-links a:hover { color: var(--accent); }
.music-links a:hover { color: var(--dark-soft); }

.work-outro {
  max-width: 1080px;
  margin-top: 2.6rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.work-outro strong { font-weight: 600; color: var(--ink); }

/* ---------- music (dark section) ---------- */
.section-dark {
  padding: 0;
  background: var(--dark-bg);
  color: var(--dark-ink);
  border-top: none;
}
.section-dark .section-inner {
  padding: clamp(4rem, 8vw, 7rem) var(--pad);
}
.section-dark .section-num { color: var(--accent); }
.section-dark .music-text p { color: var(--dark-soft); }
.section-dark .music-text p.lead { color: var(--dark-ink); }
.section-dark .music-text strong { color: var(--dark-ink); }
.section-dark ::selection { background: var(--dark-ink); color: var(--dark-bg); }

.music-grid {
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  max-width: 1080px;
}
.music-text p { margin-bottom: 1.3rem; }
.music-links { margin-top: 2rem; }


/* ---------- contact ---------- */
.contact-body .lead { margin-bottom: 2rem; }
.contact-email {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.2em;
  margin-bottom: 2.6rem;
  transition: color 0.3s ease;
}
.contact-email:hover { color: var(--accent-deep); }

/* ---------- footer ---------- */
.footer {
  padding: 2rem var(--pad) 2.5rem;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.footer a:hover { color: var(--accent); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .sidebar {
    position: static;
    width: auto;
    border-right: none;
    border-bottom: 1px solid var(--hairline);
    padding-bottom: 1.5rem;
  }
  .sidebar-photo, .sidebar-tagline { display: none; }
  .sidebar-name { margin-bottom: 1rem; }
  .sidebar-name br { display: none; }
  .sidebar-nav { flex-direction: row; flex-wrap: wrap; gap: 1.1rem; }
  .sidebar-social { display: none; }
  .content { margin-left: 0; }
  .hero { min-height: 70svh; }

  .about-top, .music-grid, .expertise-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 420px; }
}