/* =========================================================
   NIGHTBYTE BASE.CSS
   Shared styles for non-home pages
   ========================================================= */

/* ---------- Root ---------- */
:root{
  --bg-0: #090b0f;
  --bg-1: #0d1116;
  --bg-2: #111720;
  --panel: rgba(18, 23, 31, 0.88);
  --panel-2: rgba(13, 17, 23, 0.92);

  --text: #e8edf2;
  --muted: #aab3be;
  --faint: #728091;

  --line: rgba(208, 224, 240, 0.10);
  --line-strong: rgba(208, 224, 240, 0.18);

  --accent: #86d6c8;
  --accent-2: #d5b06d;
  --accent-3: #9b8cff;

  --danger: #df6f7f;
  --success: #78d39d;

  --shadow: 0 24px 70px rgba(0,0,0,.45);
  --shadow-soft: 0 12px 30px rgba(0,0,0,.28);

  --radius: 0.35rem;
  --radius-sm: 0.22rem;

  --max-width: 1120px;
  --content-width: min(var(--max-width), calc(100% - 2rem));

  --base-font: "Segoe UI", Arial, sans-serif;
  --heading-font: Georgia, "Times New Roman", serif;
  --mono-font: "Consolas", "SFMono-Regular", monospace;
}

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

html{
  scroll-behavior: smooth;
  color-scheme: dark;
}

body{
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--base-font);
  background:
    radial-gradient(circle at top, rgba(134,214,200,.08), transparent 28%),
    radial-gradient(circle at 80% 15%, rgba(213,176,109,.06), transparent 22%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0));
  overflow-x: hidden;
  position: relative;
}

/* subtle texture */
body::before{
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .10;
  mix-blend-mode: screen;
}

body::after{
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.42) 100%);
}

img, video, svg{
  max-width: 100%;
  display: block;
}

a{
  color: var(--text);
  text-decoration-thickness: 1px;
  text-underline-offset: .16em;
}

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

p{
  line-height: 1.65;
  color: var(--text);
}

small, .muted{
  color: var(--muted);
}

hr, .divider{
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  margin: 1.25rem 0;
}

/* ---------- Page shell ---------- */
.page-shell{
  width: var(--content-width);
  margin: 0 auto;
  padding: 1.1rem 0 2.5rem;
  position: relative;
  z-index: 1;
}

.page-grid{
  display: grid;
  gap: 1rem;
}

.page-grid.split{
  grid-template-columns: 1.15fr .85fr;
}

@media (max-width: 900px){
  .page-grid.split{
    grid-template-columns: 1fr;
  }
}

/* ---------- Header / brand ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(8,10,14,.92), rgba(8,10,14,.72));
  backdrop-filter: blur(10px);
}

.site-header-inner{
  width: var(--content-width);
  margin: 0 auto;
  min-height: 4.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  color: var(--text);
}

.brand-mark{
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(145deg, rgba(134,214,200,.12), rgba(213,176,109,.08));
  box-shadow: var(--shadow-soft);
  color: var(--accent);
  font-family: var(--mono-font);
  letter-spacing: .08em;
}

.brand-title{
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-title strong{
  font-family: var(--heading-font);
  font-size: 1.05rem;
  letter-spacing: .04em;
}

.brand-title span{
  color: var(--muted);
  font-size: .76rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}

/* nav */
.site-nav{
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
  justify-content: flex-end;
}

.site-nav a{
  position: relative;
  padding: .35rem .15rem;
  text-decoration: none;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .78rem;
}

.site-nav a::after{
  content: "";
  position: absolute;
  left: 0;
  bottom: .12rem;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .18s ease;
}

.site-nav a:hover{
  color: var(--text);
}

.site-nav a:hover::after{
  transform: scaleX(1);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4{
  margin: 0 0 .75rem;
  font-family: var(--heading-font);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}

h1{
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h2{
  font-size: clamp(1.45rem, 2.2vw, 2.1rem);
}

h3{
  font-size: 1.25rem;
}

.section-kicker,
.eyebrow{
  display: inline-block;
  margin-bottom: .65rem;
  color: var(--accent-2);
  letter-spacing: .18em;
  text-transform: uppercase;
  font-size: .74rem;
  font-weight: 700;
}

.lead{
  font-size: 1.08rem;
  color: var(--text);
  max-width: 68ch;
}

/* ---------- Panels / cards ---------- */
.panel,
.card,
.content-card{
  position: relative;
  background: linear-gradient(180deg, rgba(20,25,33,.92), rgba(12,15,20,.92));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 1.2rem;
  overflow: hidden;
}

.panel::before,
.card::before,
.content-card::before{
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(134,214,200,.85), rgba(213,176,109,.85), transparent);
  opacity: .75;
}

.panel.soft{
  background: linear-gradient(180deg, rgba(17,21,28,.86), rgba(10,13,18,.90));
}

.panel.outline{
  background: transparent;
  border: 1px solid var(--line-strong);
  box-shadow: none;
}

.panel-title{
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-bottom: .9rem;
}

.panel-title i{
  color: var(--accent);
}

.panel-title h2,
.panel-title h3{
  margin: 0;
}

/* ---------- Layout helpers ---------- */
.stack{
  display: grid;
  gap: 1rem;
}

.columns{
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
}

.columns.two{
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 840px){
  .columns, .columns.two{
    grid-template-columns: 1fr;
  }
}

/* ---------- Lists ---------- */
ul.clean, ol.clean{
  margin: 0;
  padding-left: 1.1rem;
}

ul.clean li,
ol.clean li{
  margin: .35rem 0;
}

.checklist{
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist li{
  position: relative;
  padding-left: 1.4rem;
  margin: .45rem 0;
}

.checklist li::before{
  content: "◈";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-2);
}

/* ---------- Links / buttons ---------- */
.btn,
button,
input[type="submit"],
input[type="button"]{
  appearance: none;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(134,214,200,.12), rgba(255,255,255,.03));
  color: var(--text);
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  transition: transform .15s ease, border-color .15s ease, background .15s ease, color .15s ease;
}

.btn:hover,
button:hover,
input[type="submit"]:hover,
input[type="button"]:hover{
  transform: translateY(-1px);
  border-color: rgba(134,214,200,.45);
  color: var(--accent);
}

.btn.primary{
  background: linear-gradient(180deg, rgba(134,214,200,.18), rgba(134,214,200,.06));
}

.btn.ghost{
  background: transparent;
}

.btn.danger{
  background: linear-gradient(180deg, rgba(223,111,127,.16), rgba(223,111,127,.06));
}

.link-inline{
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted rgba(134,214,200,.55);
}

.link-inline:hover{
  border-bottom-style: solid;
}

/* ---------- Forms ---------- */
form{
  display: grid;
  gap: .9rem;
}

.field-group{
  display: grid;
  gap: .35rem;
}

label{
  color: var(--muted);
  font-size: .85rem;
  letter-spacing: .04em;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="password"],
textarea,
select{
  width: 100%;
  background: rgba(255,255,255,.03);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: .8rem .95rem;
  font: inherit;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
}

textarea{
  min-height: 10rem;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus{
  border-color: rgba(134,214,200,.55);
  box-shadow: 0 0 0 3px rgba(134,214,200,.10);
}

::placeholder{
  color: #7d8896;
}

/* ---------- Tables ---------- */
table{
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.02);
}

th, td{
  padding: .85rem .9rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th{
  background: rgba(255,255,255,.04);
  color: var(--text);
  font-weight: 700;
}

tr:hover td{
  background: rgba(255,255,255,.02);
}

/* ---------- Badges / tags ---------- */
.badge,
.tag{
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .25rem .55rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255,255,255,.03);
  color: var(--muted);
  font-size: .76rem;
  letter-spacing: .04em;
}

.badge.accent{
  color: var(--accent);
  border-color: rgba(134,214,200,.35);
}

.badge.gold{
  color: var(--accent-2);
  border-color: rgba(213,176,109,.35);
}

/* ---------- Callouts ---------- */
.callout{
  border-left: 3px solid var(--accent);
  background: rgba(134,214,200,.06);
  padding: .9rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text);
}

.callout.warn{
  border-left-color: var(--accent-2);
  background: rgba(213,176,109,.07);
}

.callout.danger{
  border-left-color: var(--danger);
  background: rgba(223,111,127,.07);
}

/* ---------- Footer ---------- */
.site-footer{
  margin-top: 2rem;
  padding: 1.25rem 0 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .92rem;
}

.site-footer-inner{
  width: var(--content-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
  justify-content: space-between;
  align-items: center;
}

.footer-note{
  color: var(--faint);
}

.footer-links{
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
}

.footer-links a{
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover{
  color: var(--accent);
}

/* ---------- Utility ---------- */
.center{
  text-align: center;
}

.right{
  text-align: right;
}

.mono{
  font-family: var(--mono-font);
}

.hidden{
  display: none !important;
}

.tight{
  margin: 0;
}

.mt-0{ margin-top: 0 !important; }
.mb-0{ margin-bottom: 0 !important; }

.glow{
  color: var(--accent);
  text-shadow: 0 0 14px rgba(134,214,200,.18);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar{
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track{
  background: var(--bg-0);
}

::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg, rgba(134,214,200,.35), rgba(213,176,109,.25));
  border: 2px solid var(--bg-0);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover{
  background: linear-gradient(180deg, rgba(134,214,200,.55), rgba(213,176,109,.38));
}

/* ---------- Responsive ---------- */
@media (max-width: 768px){
  .site-header-inner{
    min-height: 4rem;
    padding: .75rem 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .page-shell{
    width: min(100% - 1rem, var(--max-width));
    padding-top: .9rem;
  }

  .panel,
  .card,
  .content-card{
    padding: 1rem;
  }

  .brand-title strong{
    font-size: 1rem;
  }
}

@media (max-width: 480px){
  h1{
    font-size: 1.85rem;
  }

  h2{
    font-size: 1.35rem;
  }

  .site-nav{
    gap: .45rem .75rem;
  }
}