/* ═══════════════════════════════════════════
   site.css — shared styles for all pages
   Coder Cube portfolio
═══════════════════════════════════════════ */

/* ── Variables ── */
:root {
  --bg:      #eaeaf4;
  --bg2:     #f0f0f8;
  --surface: #e4e4ee;
  --code-bg: #f4f4fa;

  --accent:  #5c5ce8;
  --accent2: #b060f0;
  --accentd: #3a3ab8;

  --ink:  #1a1a2e;
  --mid:  #6666a0;
  --dim:  #9999bb;

  --code-str: #0095a8;
  --code-kw:  #7c3aed;
  --code-fn:  #0066cc;
  --code-num: #d97706;
  --code-cmt: #9999bb;
  --code-ln:  #c8c8de;

  --nm-light: rgba(255,255,255,0.88);
  --nm-dark:  rgba(175,175,205,0.55);
  --nm-out:   -5px -5px 14px var(--nm-light), 6px 6px 16px var(--nm-dark);
  --nm-in:    inset 4px 4px 10px var(--nm-dark), inset -3px -3px 8px var(--nm-light);

  --nav-bg:      rgba(234,234,244,0.6);
  --nav-border:  rgba(255,255,255,0.75);
  --divider:     rgba(180,180,210,0.25);
  --card-border: rgba(255,255,255,0.9);
  --tab-border:  rgba(180,180,210,0.25);

  --glass-bg:       rgba(255,255,255,0.28);
  --glass-border:   rgba(255,255,255,0.55);
  --glass-shine:    rgba(255,255,255,0.65);
  --glass-shadow:   rgba(0,0,0,0.09);
  --glass-hover-bg: rgba(255,255,255,0.42);

  --font-head: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 18px;
}

html.dark {
  --bg:      #080808;
  --bg2:     #0d0d0d;
  --surface: #111111;
  --code-bg: #0a0a0a;

  --ink:  #f0f0f0;
  --mid:  #888899;
  --dim:  #404050;

  --code-str: #34d4ee;
  --code-kw:  #b79dfa;
  --code-fn:  #70b5fa;
  --code-num: #fb923c;
  --code-cmt: #444455;
  --code-ln:  #252530;

  --nm-light: rgba(255,255,255,0.03);
  --nm-dark:  rgba(0,0,0,0.7);
  --nm-out:   -4px -4px 12px var(--nm-light), 5px 5px 16px var(--nm-dark);
  --nm-in:    inset 3px 3px 8px var(--nm-dark), inset -2px -2px 6px var(--nm-light);

  --nav-bg:      rgba(8,8,8,0.85);
  --nav-border:  rgba(255,255,255,0.06);
  --divider:     rgba(255,255,255,0.05);
  --card-border: rgba(255,255,255,0.06);
  --tab-border:  rgba(255,255,255,0.06);

  --glass-bg:       rgba(255,255,255,0.06);
  --glass-border:   rgba(255,255,255,0.13);
  --glass-shine:    rgba(255,255,255,0.06);
  --glass-shadow:   rgba(0,0,0,0.6);
  --glass-hover-bg: rgba(255,255,255,0.11);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-head);
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
  min-height: 100vh;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 3rem;
  background: var(--nav-bg);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-bottom: 1px solid var(--nav-border);
  transition: background 0.4s, border-color 0.4s;
}
.nav-logo {
  font-family: var(--font-mono); font-size: 0.88rem;
  color: var(--ink); text-decoration: none; font-weight: 700;
  display: flex; align-items: center; gap: 0.55rem;
  transition: color 0.2s;
}
.nav-logo:hover { color: var(--accent); }
.nav-logo-badge {
  background: var(--accent); color: #fff;
  font-size: 0.6rem; padding: 0.15rem 0.5rem;
  border-radius: 4px; font-weight: 500; letter-spacing: 0.06em;
}
.nav-right { display: flex; align-items: center; gap: 1.5rem; }
.nav-links { display: flex; gap: 0.3rem; list-style: none; }
.nav-links a {
  color: var(--mid); text-decoration: none; font-size: 0.85rem;
  padding: 0.4rem 0.9rem; border-radius: 20px;
  transition: color 0.2s, background 0.2s;
  position: relative;
}
.nav-links a:hover { color: var(--accent); background: rgba(92,92,232,0.07); }
.nav-links a.active { color: var(--accent); background: rgba(92,92,232,0.1); }

/* Hamburger menu */
.ham {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 400ms;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
  display: none; /* hidden on desktop */
}
.hamRotate.active {
  transform: rotate(45deg);
}
.hamRotate180.active {
  transform: rotate(180deg);
}
.line {
  fill:none;
  transition: stroke-dasharray 400ms, stroke-dashoffset 400ms;
  stroke: var(--ink);
  stroke-width:5.5;
  stroke-linecap:round;
}
html.dark .line { stroke: var(--ink); } /* already var(--ink) */
.ham1 .top {
  stroke-dasharray: 40 139;
}
.ham1 .bottom {
  stroke-dasharray: 40 180;
}
.ham1.active .top {
  stroke-dashoffset: -98px;
}
.ham1.active .bottom {
  stroke-dashoffset: -138px;
}

/* Theme toggle */
.theme-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 2px 8px var(--glass-shadow), inset 0 1px 0 var(--glass-shine);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; position: relative; overflow: hidden;
  transition: background 0.2s, box-shadow 0.2s;
  flex-shrink: 0;
}
.theme-toggle:hover { background: var(--glass-hover-bg); }
.theme-toggle:active { box-shadow: inset 0 2px 6px rgba(0,0,0,0.15); }
.toggle-icon {
  position: absolute; width: 18px; height: 18px;
  transition: transform 0.45s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s;
  stroke: var(--mid);
}
.icon-sun  { opacity: 1; transform: rotate(0deg) scale(1); }
.icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
html.dark .icon-sun  { opacity: 0; transform: rotate(90deg) scale(0.5); }
html.dark .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* ── GLASS BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.65rem 1.5rem; border-radius: 50px;
  font-family: var(--font-mono); font-size: 0.78rem;
  letter-spacing: 0.05em; text-decoration: none;
  cursor: pointer; user-select: none;
  /* layered gradient: bright top edge → semi-transparent body */
  background:
    linear-gradient(
      160deg,
      rgba(255,255,255,0.55) 0%,
      rgba(255,255,255,0.18) 40%,
      rgba(255,255,255,0.10) 100%
    );
  backdrop-filter: blur(28px) saturate(200%);
  -webkit-backdrop-filter: blur(28px) saturate(200%);
  border: 1px solid rgba(255,255,255,0.65);
  box-shadow:
    0 2px 18px rgba(0,0,0,0.10),
    0 1px 4px rgba(0,0,0,0.07),
    inset 0 1.5px 0 rgba(255,255,255,0.90),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    inset 1px 0 0 rgba(255,255,255,0.35),
    inset -1px 0 0 rgba(255,255,255,0.35);
  color: var(--mid);
  transition: background 0.22s ease, box-shadow 0.22s ease,
              color 0.2s ease, transform 0.15s ease, border-color 0.2s ease;
  white-space: nowrap;
  position: relative; overflow: hidden;
}
/* subtle inner sheen overlay */
.btn::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,0.22) 0%, transparent 60%);
  pointer-events: none;
}
.btn:hover {
  background:
    linear-gradient(
      160deg,
      rgba(255,255,255,0.70) 0%,
      rgba(255,255,255,0.28) 40%,
      rgba(255,255,255,0.16) 100%
    );
  box-shadow:
    0 6px 28px rgba(0,0,0,0.13),
    0 2px 6px rgba(0,0,0,0.08),
    inset 0 1.5px 0 rgba(255,255,255,0.95),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    inset 1px 0 0 rgba(255,255,255,0.4),
    inset -1px 0 0 rgba(255,255,255,0.4);
  transform: translateY(-1px);
  color: var(--ink);
}
.btn:active {
  transform: translateY(0);
  box-shadow:
    0 1px 4px rgba(0,0,0,0.10),
    inset 0 2px 8px rgba(0,0,0,0.10),
    inset 0 1px 0 rgba(255,255,255,0.6);
}

/* Dark mode glass */
html.dark .btn {
  background:
    linear-gradient(
      160deg,
      rgba(255,255,255,0.14) 0%,
      rgba(255,255,255,0.06) 50%,
      rgba(255,255,255,0.03) 100%
    );
  border-color: rgba(255,255,255,0.16);
  box-shadow:
    0 2px 20px rgba(0,0,0,0.55),
    0 1px 4px rgba(0,0,0,0.4),
    inset 0 1.5px 0 rgba(255,255,255,0.14),
    inset 0 -1px 0 rgba(0,0,0,0.3);
}
html.dark .btn::before {
  background: linear-gradient(180deg, rgba(255,255,255,0.07) 0%, transparent 60%);
}
html.dark .btn:hover {
  background:
    linear-gradient(
      160deg,
      rgba(255,255,255,0.20) 0%,
      rgba(255,255,255,0.10) 50%,
      rgba(255,255,255,0.05) 100%
    );
  box-shadow:
    0 6px 32px rgba(0,0,0,0.6),
    0 2px 8px rgba(0,0,0,0.45),
    inset 0 1.5px 0 rgba(255,255,255,0.18),
    inset 0 -1px 0 rgba(0,0,0,0.3);
  color: var(--ink);
}
html.dark .btn:active {
  box-shadow:
    0 1px 4px rgba(0,0,0,0.5),
    inset 0 2px 10px rgba(0,0,0,0.4),
    inset 0 1px 0 rgba(255,255,255,0.08);
}

/* Platform-specific hover colors */
.btn-email:hover   { background: linear-gradient(160deg,rgba(255,255,255,0.7) 0%,rgba(80,80,100,0.12) 100%);  border-color: rgba(80,80,100,0.25);  color: var(--ink); }
.btn-discord:hover   { background: linear-gradient(160deg,rgba(255,255,255,0.7) 0%,rgba(92,92,232,0.15) 100%);  border-color: rgba(92,92,232,0.35);  color: var(--accent); }
.btn-youtube:hover { background: linear-gradient(160deg,rgba(255,255,255,0.7) 0%,rgba(255,50,50,0.12) 100%);  border-color: rgba(255,50,50,0.3);   color: #c40000; }
.btn-github:hover  { background: linear-gradient(160deg,rgba(255,255,255,0.7) 0%,rgba(80,80,100,0.12) 100%);  border-color: rgba(80,80,100,0.25);  color: var(--ink); }

html.dark .btn-email:hover   { background: linear-gradient(160deg,rgba(255,255,255,0.14) 0%,rgba(210,210,230,0.14) 100%); border-color: rgba(210,210,230,0.25); color: #ddd; }
html.dark .btn-discord:hover   { background: linear-gradient(160deg,rgba(255,255,255,0.14) 0%,rgba(130,130,255,0.22) 100%); border-color: rgba(130,130,255,0.35); color: #b0b0ff; }
html.dark .btn-youtube:hover { background: linear-gradient(160deg,rgba(255,255,255,0.14) 0%,rgba(255,60,60,0.22) 100%);   border-color: rgba(255,80,80,0.35);   color: #ff7070; }
html.dark .btn-github:hover  { background: linear-gradient(160deg,rgba(255,255,255,0.14) 0%,rgba(210,210,230,0.14) 100%); border-color: rgba(210,210,230,0.25); color: #ddd; }

/* ── LAYOUT ── */
.container { max-width: 1060px; margin: 0 auto; }
section { position: relative; z-index: 1; padding: 7rem 3rem; }
.divider { height: 1px; background: var(--divider); border: none; transition: background 0.4s; }

.section-eyebrow {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--accent); letter-spacing: 0.25em; text-transform: uppercase;
  margin-bottom: 0.7rem;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700;
  letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 1rem;
}

/* ── REVEAL (fade + blur + slide) ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s ease, transform .8s ease;
}

/* apply blur to children instead of the container */
.reveal > * {
  filter: blur(6px);
  transition: filter .8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.reveal.visible > * {
  filter: blur(0);
}

/* ── CODE TOKENS ── */
.kw  { color: var(--code-kw); }
.fn  { color: var(--code-fn); }
.str { color: var(--code-str); }
.num { color: var(--code-num); }
.cmt { color: var(--code-cmt); font-style: italic; }
.pun { color: var(--mid); }
.ln  { min-width: 2.8rem; text-align: right; padding-right: 1.2rem;
       color: var(--code-ln); font-size: 0.72rem; user-select: none; }
.code-line { display: flex; align-items: baseline; padding: 0 1.2rem 0 0; }
.code-body {
  padding: 1.2rem 0; font-family: var(--font-mono);
  font-size: 0.82rem; line-height: 1.8;
}

/* Code titlebar pattern */
.code-titlebar {
  background: var(--surface); padding: 0.55rem 1rem;
  display: flex; align-items: center; gap: 0.5rem;
  border-bottom: 1px solid var(--tab-border);
  transition: background 0.4s, border-color 0.4s;
}
.code-dot { width: 10px; height: 10px; border-radius: 50%; }
.code-filename {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--dim); margin-left: 0.4rem; letter-spacing: 0.03em;
}

/* ── FOOTER ── */
footer {
  text-align: center; padding: 2rem;
  border-top: 1px solid var(--divider);
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--dim);
  background: var(--bg); letter-spacing: 0.06em;
  transition: background 0.4s, border-color 0.4s;
}

/* ── CANVAS ── */
#canvas-bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.45; }

/* ── MOBILE ── */
@media (max-width: 768px) {
  nav { padding: 0.9rem 1.4rem; }
  .ham { display: block; position: absolute; right: 1.4rem; top: 50%; transform: translateY(-50%); }
  .nav-links { display: none; }
  nav.mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(28px) saturate(180%);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    border-bottom: 1px solid var(--nav-border);
    padding: 0.8rem;
    gap: 1.1rem;
    align-items: flex-end;
  }
  nav.mobile-open .nav-links a {
    padding: 0.6rem 1rem;
    border-radius: 12px;
  }
  section { padding: 5rem 1.4rem; }
}