/* ============================================================
   index.css — Treeman's Page
   Aesthetic: Dark Matter Physics Lab (Sharp Edition)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;600;700&family=Share+Tech+Mono&family=Orbitron:wght@700&display=swap');

/* ── Variables ───────────────────────────────────────────── */
:root {
  --void:         #03030a;
  --surface:      #07070f;
  --surface-2:    #0d0d1a;
  --border:       #2a1a5e;
  --border-hi:    #5b21b6;
  --purple:       #7c3aed;
  --purple-hi:    #a855f7;
  --text:         #c4b5fd;
  --text-dim:     #6d5fa0;
  --text-bright:  #ede9fe;
  --white:        #f5f3ff;

  --font-display: 'Orbitron', monospace;
  --font-ui:      'Rajdhani', sans-serif;
  --font-mono:    'Share Tech Mono', monospace;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

html { scroll-behavior: smooth; }

/* ── Body ────────────────────────────────────────────────── */
body {
  background-color: var(--void);
  background-image:
    linear-gradient(180deg, rgba(92, 14, 166, 0.10) 0%, transparent 35%),
    linear-gradient(90deg, rgba(124, 58, 237, 0.04) 1px, transparent 1px),
    linear-gradient(0deg,  rgba(124, 58, 237, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 60px 60px, 60px 60px;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Bootstrap Grid Compatibility ───────────────────────── */
.container,
.container-fluid {
  display: block !important;
  position: relative;
  z-index: 1;
}

.row {
  display: block !important;
  overflow: hidden;
  margin-left: -15px;
  margin-right: -15px;
}

.row::after {
  content: '';
  display: table;
  clear: both;
}

[class*="col-"] {
  float: left;
  min-height: 1px;
  padding-left: 15px;
  padding-right: 15px;
}

.list-group  { display: block !important; }
.list-group-item { display: block !important; overflow: hidden; }

/* ── Navbar ──────────────────────────────────────────────── */
.navbar-inverse {
  background: var(--void);
  border: none;
  border-bottom: 1px solid var(--border-hi);
  box-shadow: none;
}

.navbar-brand {
  font-family: var(--font-display) !important;
  font-size: 1rem !important;
  font-weight: 700 !important;
  letter-spacing: 4px !important;
  text-transform: uppercase;
  color: var(--purple-hi) !important;
  transition: color 0.2s;
}

.navbar-brand:hover { color: var(--white) !important; }

.navbar-inverse .navbar-nav > li > a {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim) !important;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  padding: 20px 16px 18px;
}

.navbar-inverse .navbar-nav > li > a:hover {
  color: var(--text-bright) !important;
  border-bottom-color: var(--purple-hi);
  background: transparent !important;
}

.navbar-inverse .navbar-nav > li > a .glyphicon {
  margin-right: 6px;
  color: var(--purple);
}

.navbar-inverse .navbar-toggle { border-color: var(--border); }
.navbar-inverse .navbar-toggle:hover { background: var(--surface-2); }
.navbar-inverse .navbar-toggle .icon-bar { background-color: var(--purple-hi); }

/* ── Headings ────────────────────────────────────────────── */
h1 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 5px;
  text-transform: uppercase;
  text-align: center;
  color: var(--white);
  border-bottom: 1px solid var(--border-hi);
  padding-bottom: 0.6rem;
  margin: 2.5rem auto 1.5rem;
  display: block;
}

h1::after {
  content: '⟨ψ| Ĥ |ψ⟩';
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 6px;
  color: var(--purple);
  opacity: 0.55;
  margin-top: 0.4rem;
}

h4 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--purple-hi);
  margin-bottom: 1rem;
}

/* ── Wells & Panels ──────────────────────────────────────── */
.panel,
.well {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 2px solid var(--purple);
  border-radius: 0;
  box-shadow: none;
  color: var(--text);
  overflow: hidden;
}

/* ── Links ───────────────────────────────────────────────── */
a {
  color: var(--purple-hi);
  font-family: var(--font-ui);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--white);
  text-decoration: none;
}

/* ── Nav Buttons (#nav_button) ───────────────────────────── */
#nav_button {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 1.5rem 1rem;
  width: 100%;
}

#nav_button a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--purple-hi);
  background: var(--surface);
  border: 1px solid var(--purple);
  border-radius: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

#nav_button a::after {
  content: '→';
  transition: transform 0.2s;
  display: inline-block;
}

#nav_button a:hover {
  background: var(--purple);
  color: var(--white);
  border-color: var(--purple-hi);
  text-decoration: none;
}

#nav_button a:hover::after { transform: translateX(4px); }

/* ── Forms ───────────────────────────────────────────────── */
.form-control {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 1px;
  transition: border-color 0.2s;
  box-shadow: none;
}

.form-control:focus {
  background: var(--surface-2);
  border-color: var(--purple-hi);
  box-shadow: none;
  outline: none;
  color: var(--text-bright);
}

.form-control::placeholder { color: var(--text-dim); }

label {
  font-family: var(--font-ui);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  font-family: var(--font-display) !important;
  font-size: 0.72rem !important;
  letter-spacing: 2px !important;
  text-transform: uppercase !important;
  border-radius: 0 !important;
  transition: background 0.2s, color 0.2s, border-color 0.2s !important;
}

.btn-primary {
  background: var(--purple) !important;
  border: 1px solid var(--purple-hi) !important;
  color: var(--white) !important;
  box-shadow: none !important;
}

.btn-primary:hover {
  background: var(--purple-hi) !important;
  border-color: var(--white) !important;
}

.btn-info {
  background: var(--surface-2) !important;
  border: 1px solid var(--purple) !important;
  color: var(--purple-hi) !important;
}

.btn-info:hover {
  background: var(--purple) !important;
  color: var(--white) !important;
}

.btn-default {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}

.btn-default:hover {
  background: var(--surface-2) !important;
  border-color: var(--purple) !important;
  color: var(--text-bright) !important;
}

.btn-danger {
  background: transparent !important;
  border: 1px solid #7f1d1d !important;
  color: #fca5a5 !important;
}

.btn-danger:hover {
  background: #7f1d1d !important;
  color: var(--white) !important;
}

/* ── List Group ──────────────────────────────────────────── */
.list-group-item {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-left: 3px solid var(--purple) !important;
  color: var(--text) !important;
  font-family: var(--font-ui);
  margin-bottom: 4px !important;
  border-radius: 0 !important;
  transition: border-left-color 0.2s, background 0.2s;
}

.list-group-item:hover {
  background: var(--surface-2) !important;
  border-left-color: var(--purple-hi) !important;
}

.list-group-item a      { color: var(--text); font-weight: 600; }
.list-group-item a:hover { color: var(--white); }

.list-group-item .glyphicon { color: var(--purple); margin-right: 8px; }

.list-group-item .text-muted {
  color: var(--text-dim) !important;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.list-group-item .pull-right {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: var(--text-dim);
}

/* ── Tables ──────────────────────────────────────────────── */
.table { color: var(--text); font-family: var(--font-ui); }

.table > thead > tr > th {
  background: var(--surface-2);
  border-color: var(--border);
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--purple-hi);
  border-bottom: 2px solid var(--purple);
}

.table > tbody > tr > td  { border-color: var(--border); }
.table > tbody > tr:hover > td { background: var(--surface-2); }

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  border-radius: 0;
  font-family: var(--font-ui);
  font-weight: 600;
  letter-spacing: 1px;
  border-left-width: 3px;
}

.alert-info    { background: var(--surface); border-color: var(--border);   border-left-color: var(--purple-hi); color: var(--text); }
.alert-danger  { background: var(--surface); border-color: #7f1d1d;          border-left-color: #ef4444;           color: #fca5a5; }
.alert-success { background: var(--surface); border-color: #064e3b;          border-left-color: #10b981;           color: #6ee7b7; }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb { background: var(--purple); }
::-webkit-scrollbar-thumb:hover { background: var(--purple-hi); }

/* ── Selection ───────────────────────────────────────────── */
::selection { background: var(--purple); color: var(--white); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 767px) {
  .navbar-inverse .navbar-nav {
    background: var(--void);
    border-top: 1px solid var(--border);
  }
  .navbar-inverse .navbar-nav > li > a {
    border-bottom: 1px solid var(--border);
    padding: 14px 20px;
  }
  h1 { font-size: 1.2rem; letter-spacing: 3px; }
  #nav_button { gap: 8px; }
  #nav_button a { padding: 9px 18px; }
}