/* ═══════════════════════════════════════════════════════════════
   BASE.CSS — Grey Studio Portfolio · Eka Danar Arrasyid
   Inspired by dennissnellenberg.com — Clean · Grey · Refined
═══════════════════════════════════════════════════════════════ */

/* ── VARIABLES ─────────────────────────────────────────────── */
:root {
  /* Fonts */
  --font-display: "Syne", sans-serif;
  --font-body:    "Outfit", sans-serif;

  /* Grey Palette */
  --bg:           #f0f0ef;
  --bg-surface:   #e8e8e7;
  --bg-elevated:  #dededd;
  --border:       #d4d4d3;
  --border-mid:   #c2c2c1;
  --text-1:       #1c1c1a;
  --text-2:       #6e6e6c;
  --text-3:       #a8a8a6;

  /* Accent — dark on light bg */
  --accent:       #1c1c1a;
  --accent-bg:    rgba(28,28,26,0.06);
  --accent-mid:   rgba(28,28,26,0.12);

  /* Layout */
  --header-height: 60px;

  /* Legacy compat */
  --default-font:     var(--font-body);
  --heading-font:     var(--font-display);
  --nav-font:         var(--font-body);
  --background-color: var(--bg);
  --default-color:    var(--text-2);
  --heading-color:    var(--text-1);
  --accent-color:     var(--accent);
  --surface-color:    var(--bg-surface);
  --contrast-color:   #fff;
  --nav-color:        var(--text-3);
  --nav-hover-color:  var(--text-1);
  --nav-active-bg:    var(--text-1);
  --sidebar-width:    0px;
  --sidebar-bg:       var(--bg-surface);
  --sidebar-border:   var(--border);
}

/* ── RESET ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-1);
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
}
@media (hover: none) { body { cursor: auto; } }

/* ── SCROLLBAR ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-mid); }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── CUSTOM CURSOR ──────────────────────────────────────────── */
.cursor-dot {
  position: fixed; width: 5px; height: 5px;
  background: var(--text-1); border-radius: 50%;
  pointer-events: none; z-index: 99999;
  transform: translate(-50%, -50%);
  will-change: left, top;
  transition: width 0.2s, height 0.2s, opacity 0.3s;
}
.cursor-ring {
  position: fixed; width: 28px; height: 28px;
  border: 1px solid rgba(28,28,26,0.28);
  border-radius: 50%; pointer-events: none; z-index: 99998;
  transform: translate(-50%, -50%);
  will-change: left, top;
  transition: width 0.25s ease, height 0.25s ease, border-color 0.25s, opacity 0.3s;
}
body.cur-hover .cursor-dot  { width: 7px; height: 7px; background: var(--text-2); }
body.cur-hover .cursor-ring { width: 44px; height: 44px; border-color: rgba(28,28,26,0.12); }
body.cur-click .cursor-dot  { width: 3px; height: 3px; }
body.cur-click .cursor-ring { width: 18px; height: 18px; }
@media (hover: none) { .cursor-dot, .cursor-ring { display: none; } }

/* ── PAGE TRANSITION ────────────────────────────────────────── */
.page-transition {
  position: fixed; inset: 0; z-index: 99000;
  background: var(--text-1);
  transform: scaleY(0); transform-origin: bottom;
  pointer-events: none;
}
.page-transition.pt-in {
  transform: scaleY(1);
  transition: transform 0.5s cubic-bezier(0.77,0,0.18,1);
  pointer-events: all;
}
.page-transition.pt-out {
  transform-origin: top; transform: scaleY(0);
  transition: transform 0.5s cubic-bezier(0.77,0,0.18,1) 0.05s;
}

/* ── SITE HEADER ────────────────────────────────────────────── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.site-logo {
  font-family: var(--font-display); font-size: 16px; font-weight: 800;
  color: var(--text-1); text-decoration: none; letter-spacing: -0.4px;
  z-index: 1002; position: relative;
}
.site-logo em { color: var(--text-3); font-style: normal; }

/* ── MENU TOGGLE ────────────────────────────────────────────── */
.menu-toggle {
  display: flex; align-items: center; gap: 11px;
  background: none; border: none; cursor: none;
  color: var(--text-2);
  font-family: var(--font-body); font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  z-index: 1002; position: relative;
  transition: color 0.2s;
}
.menu-toggle:hover { color: var(--text-1); }
.menu-bars {
  display: flex; flex-direction: column; gap: 5px; width: 20px;
}
.menu-bars span {
  display: block; height: 1px; background: currentColor; border-radius: 1px;
  transform-origin: center;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1), opacity 0.2s, width 0.25s;
}
.menu-bars span:last-child { width: 12px; margin-left: auto; }
.menu-toggle.is-open .menu-bars span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle.is-open .menu-bars span:last-child  { width: 20px; transform: translateY(-3px) rotate(-45deg); }

/* ── NAV OVERLAY ────────────────────────────────────────────── */
.nav-overlay {
  position: fixed; inset: 0; z-index: 999;
  background: var(--bg-surface);
  display: flex; flex-direction: column;
  justify-content: center;
  padding: 80px 72px 64px;
  pointer-events: none; opacity: 0;
  transition: opacity 0.3s ease;
}
.nav-overlay.is-open { opacity: 1; pointer-events: all; }

.nav-links-list { list-style: none; }
.nav-links-list li { overflow: hidden; border-bottom: 1px solid var(--border); }
.nav-links-list li:first-child { border-top: 1px solid var(--border); }

.nav-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 36px);
  font-weight: 700; letter-spacing: -0.6px; line-height: 1.1;
  color: var(--text-1); text-decoration: none;
  transform: translateY(100%);
  transition: color 0.18s;
}
.nav-overlay.is-open .nav-link {
  animation: navSlideIn 0.55s cubic-bezier(0.22,1,0.36,1) forwards;
}
.nav-links-list li:nth-child(1) .nav-link { animation-delay: 0.03s; }
.nav-links-list li:nth-child(2) .nav-link { animation-delay: 0.06s; }
.nav-links-list li:nth-child(3) .nav-link { animation-delay: 0.09s; }
.nav-links-list li:nth-child(4) .nav-link { animation-delay: 0.12s; }
.nav-links-list li:nth-child(5) .nav-link { animation-delay: 0.15s; }
.nav-links-list li:nth-child(6) .nav-link { animation-delay: 0.18s; }
.nav-links-list li:nth-child(7) .nav-link { animation-delay: 0.21s; }
.nav-link:hover { color: var(--text-3); }

.nav-link-num {
  font-family: var(--font-body); font-size: 10px; font-weight: 400;
  color: var(--text-3); letter-spacing: 0.08em;
}
.nav-link-arrow {
  font-size: 13px; color: var(--text-3);
  opacity: 0; transform: translateX(-6px);
  transition: opacity 0.18s, transform 0.18s;
}
.nav-link:hover .nav-link-arrow { opacity: 1; transform: translateX(0); }

@keyframes navSlideIn {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.nav-overlay-footer {
  position: absolute; bottom: 48px;
  left: 72px; right: 72px;
  display: flex; justify-content: space-between; align-items: center;
}
.nav-social-row { display: flex; gap: 24px; }
.nav-social {
  font-family: var(--font-body); font-size: 10px; font-weight: 400;
  color: var(--text-3); text-decoration: none;
  text-transform: uppercase; letter-spacing: 0.1em;
  transition: color 0.2s;
}
.nav-social:hover { color: var(--text-1); }
.nav-footer-loc {
  font-size: 10px; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 0.1em;
}

/* ── MAIN CONTENT ───────────────────────────────────────────── */
#main-content {
  min-height: 100vh;
  padding-top: var(--header-height);
}

/* ── PAGE HEADER ────────────────────────────────────────────── */
.page-header {
  padding: 44px 72px 26px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  opacity: 0; transform: translateY(14px);
  animation: fadeUp 0.6s cubic-bezier(0.22,1,0.36,1) 0.1s forwards;
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 700; line-height: 1.05; letter-spacing: -1px;
  color: var(--text-1); margin-bottom: 10px;
}
.page-title span { color: var(--text-3); }
.page-subtitle {
  font-family: var(--font-body); font-size: 12.5px; font-weight: 400;
  color: var(--text-2); letter-spacing: 0.3px;
}

/* ── CUSTOM CONTEXT MENU ────────────────────────────────────── */
.ctx-menu {
  position: fixed; z-index: 99500;
  min-width: 200px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 14px 44px rgba(28,28,26,0.16);
  padding: 6px;
  opacity: 0; transform: scale(0.96) translateY(-4px);
  transform-origin: top left;
  pointer-events: none;
  transition: opacity 0.16s ease, transform 0.18s cubic-bezier(0.22,1,0.36,1);
}
.ctx-menu.open {
  opacity: 1; transform: scale(1) translateY(0);
  pointer-events: all;
}
.ctx-item {
  display: flex; align-items: center; gap: 12px;
  width: 100%; padding: 10px 12px;
  background: none; border: none; border-radius: 5px;
  font-family: var(--font-body); font-size: 12.5px; font-weight: 400;
  color: var(--text-2); text-align: left;
  cursor: none; transition: background 0.15s, color 0.15s;
}
.ctx-item:hover { background: var(--bg-surface); color: var(--text-1); }
.ctx-item i {
  font-size: 11px; width: 14px; text-align: center;
  color: var(--text-3); transition: color 0.15s;
}
.ctx-item:hover i { color: var(--text-1); }
.ctx-divider {
  height: 1px; background: var(--border);
  margin: 6px 4px;
}
@media (hover: none) { .ctx-item { cursor: pointer; } }

/* ── STATE BOX ──────────────────────────────────────────────── */
.state-box {
  text-align: center; padding: 72px 24px; color: var(--text-3);
}
.state-box i { font-size: 20px; margin-bottom: 12px; display: block; opacity: 0.4; }
.state-box p { font-family: var(--font-body); font-size: 13px; opacity: 0.7; }
.spin { animation: spinAnim 0.9s linear infinite; }

/* ── KEYFRAMES ──────────────────────────────────────────────── */
@keyframes fadeUp   { to { opacity: 1; transform: translateY(0); } }
@keyframes spinAnim { to { transform: rotate(360deg); } }
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.3; transform: scale(1.5); }
}

/* ── MOBILE ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .site-header { padding: 0 20px; }
  .nav-overlay { padding: 72px 20px 56px; }
  .nav-link { font-size: clamp(20px, 6vw, 30px); letter-spacing: -0.4px; padding: 12px 0; }
  .nav-overlay-footer { left: 20px; right: 20px; bottom: 32px; }
  .page-header { padding: 40px 20px 20px; }
  .page-title  { letter-spacing: -0.8px; }
  #main-content { padding-top: var(--header-height); }
}