/* ═══════════════════════════════════════════════════
   SMARTEST USTA — Main Stylesheet
   Space / Terminal Aesthetic
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Share+Tech+Mono&family=Orbitron:wght@400;500;700;900&family=JetBrains+Mono:wght@300;400;500;700&display=swap');

/* ── TOKENS ── */
:root {
  --bg:            #0d0d0d;
  --surface:       #131313;
  --surface-hi:    #1a1a1a;
  --surface-hhi:   #222222;
  --border:        rgba(255,255,255,0.08);
  --border-accent: rgba(255,255,255,0.18);
  --text:          #e8e8e8;
  --text-dim:      #888;
  --text-dimmer:   #555;
  --green:         #00ff88;
  --red:           #ff3355;
  --gold:          #f0c040;
  --blue:          #4af3ff;
  --orange:        #ff8c42;
  --white:         #ffffff;
  --mono:          'JetBrains Mono', 'Share Tech Mono', monospace;
  --display:       'Orbitron', sans-serif;
  --sans:          'Space Grotesk', sans-serif;

  /* Space theme extras */
  --space-deep:    #030310;
  --space-nebula:  rgba(74, 243, 255, 0.06);
  --space-glow:    rgba(0, 255, 136, 0.15);
  --radar-green:   #00ff88;
}

/* ── RESET ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ── SPACE BACKGROUND ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(0,255,136,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(74,243,255,0.04) 0%, transparent 50%),
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* scanlines */
body::after {
  content: '';
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.06) 2px,
    rgba(0,0,0,0.06) 4px
  );
  pointer-events: none;
  z-index: 1;
}

/* ── SHARED LAYOUT ── */
.page-wrap {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── HEADER ── */
header {
  position: sticky; top: 0;
  z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(10,10,10,0.96);
  backdrop-filter: blur(16px);
  flex-shrink: 0;
}

.logo {
  font-family: var(--display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--white);
  text-decoration: none;
}
.logo span { color: var(--green); }

.header-nav {
  display: flex; gap: 6px; align-items: center;
}

.nav-link {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-decoration: none;
  color: var(--text-dim);
  padding: 5px 12px;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-transform: uppercase;
}
.nav-link:hover,
.nav-link.active {
  color: var(--green);
  border-color: rgba(0,255,136,0.35);
  background: rgba(0,255,136,0.05);
}

.header-center { display: flex; gap: 6px; }

.lang-btn {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  background: transparent;
  border: 1px solid var(--border-accent);
  color: var(--text-dim);
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.lang-btn.active,
.lang-btn:hover {
  border-color: var(--green);
  color: var(--green);
}

.header-right { display: flex; gap: 8px; align-items: center; }

.donate-btn {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  background: var(--gold);
  color: #000;
  border: none;
  padding: 5px 14px;
  cursor: pointer;
  font-weight: 700;
  transition: all 0.15s;
  text-decoration: none;
  display: flex; align-items: center; gap: 5px;
}
.donate-btn:hover { background: #ffe060; transform: translateY(-1px); }

.iban-btn {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 5px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.iban-btn:hover { border-color: var(--gold); color: var(--gold); }

/* ── FOOTER ── */
footer {
  position: relative; z-index: 100;
  background: rgba(8,8,8,0.97);
  border-top: 1px solid var(--border);
  padding: 10px 28px;
  flex-shrink: 0;
  margin-top: auto;
}
.footer-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px;
}
.footer-copy,
.footer-coord {
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: var(--text-dimmer);
}
.social-row {
  display: flex; justify-content: center; gap: 18px; align-items: center;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}
.social-link {
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: var(--text-dimmer);
  text-decoration: none;
  text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  transition: color 0.15s;
  padding: 3px 4px;
}
.social-link svg { width: 14px; height: 14px; fill: currentColor; opacity: 0.6; }
.social-link:hover { color: var(--white); }
.social-link:hover svg { opacity: 1; }

/* ── IBAN MODAL ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--surface-hi);
  border: 1px solid var(--border-accent);
  padding: 32px 40px;
  max-width: 480px; width: 90%;
  position: relative;
  transform: translateY(12px);
  transition: transform 0.2s;
}
.modal-overlay.open .modal-box { transform: translateY(0); }
.modal-title {
  font-family: var(--mono);
  font-size: 0.65rem; letter-spacing: 0.25em;
  color: var(--gold); text-transform: uppercase;
  margin-bottom: 20px;
}
.iban-value {
  font-family: var(--mono);
  font-size: 1.05rem; letter-spacing: 0.1em;
  color: var(--white);
  background: var(--surface-hhi);
  border: 1px solid var(--border);
  padding: 14px 18px; margin-bottom: 12px;
  word-break: break-all;
}
.iban-note {
  font-family: var(--mono);
  font-size: 0.55rem; letter-spacing: 0.1em;
  color: var(--text-dim); margin-bottom: 20px;
}
.modal-close {
  position: absolute; top: 14px; right: 16px;
  font-family: var(--mono); font-size: 0.65rem;
  color: var(--text-dim);
  background: transparent; border: none;
  cursor: pointer; letter-spacing: 0.1em;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--white); }
.copy-btn {
  font-family: var(--mono); font-size: 0.6rem;
  letter-spacing: 0.15em;
  background: transparent;
  border: 1px solid var(--border-accent);
  color: var(--text-dim); padding: 6px 16px;
  cursor: pointer; transition: all 0.15s;
}
.copy-btn:hover { border-color: var(--green); color: var(--green); }

/* ── CODE VIEWER (shared) ── */
.code-section {
  padding: 40px 28px;
  max-width: 1100px; margin: 0 auto; width: 100%;
}
.code-section-title {
  font-family: var(--display);
  font-size: 0.7rem; letter-spacing: 0.3em;
  color: var(--blue); text-transform: uppercase;
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 12px;
}
.code-section-title::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(to right, var(--border-accent), transparent);
}
.code-file-label {
  font-family: var(--mono);
  font-size: 0.58rem; letter-spacing: 0.1em;
  color: var(--text-dimmer);
  background: var(--surface-hhi);
  border: 1px solid var(--border);
  border-bottom: none;
  padding: 6px 14px;
  display: inline-block;
}
.code-block {
  background: var(--surface);
  border: 1px solid var(--border-accent);
  padding: 20px 22px;
  overflow-x: auto;
  max-height: 420px;
  overflow-y: auto;
  position: relative;
}
.code-block pre {
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.7;
  color: #cdd6f4;
  tab-size: 4;
  white-space: pre;
}
/* Minimal syntax coloring */
.kw  { color: #cba6f7; }
.fn  { color: #89b4fa; }
.st  { color: #a6e3a1; }
.cm  { color: #6c7086; font-style: italic; }
.nm  { color: #fab387; }

/* Scrollbar */
.code-block::-webkit-scrollbar { width: 6px; height: 6px; }
.code-block::-webkit-scrollbar-track { background: transparent; }
.code-block::-webkit-scrollbar-thumb { background: var(--border-accent); border-radius: 3px; }

/* ── UTILITY ── */
.glow-green { text-shadow: 0 0 20px rgba(0,255,136,0.5); }
.glow-blue  { text-shadow: 0 0 20px rgba(74,243,255,0.5); }

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}
@keyframes scanX {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
@keyframes orbit {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes fadeUp {
  from { opacity:0; transform: translateY(16px); }
  to   { opacity:1; transform: translateY(0); }
}
@keyframes resultFlash {
  0%   { opacity:0; transform: scale(0.95); }
  15%  { opacity:1; transform: scale(1.02); }
  100% { opacity:1; transform: scale(1); }
}

/* ══════════════════════════════════════════════════
   RESPONSIVE — Tablet + Mobile
   ══════════════════════════════════════════════════ */

/* Hamburger — varsayılan gizli (desktop) */
.mobile-nav-toggle { display: none; }
@media (max-width: 900px) {
  .header-nav { gap: 2px; }
  .nav-link    { font-size: 0.55rem; padding: 5px 8px; }
}

/* ── MOBILE (≤ 680px) ── */
@media (max-width: 680px) {

  /* Header */
  header {
    padding: 8px 12px;
    flex-wrap: nowrap;
    gap: 6px;
    justify-content: space-between;
  }
  .header-nav   { display: none; }
  .header-center { gap: 4px; }
  .lang-btn     { padding: 4px 8px; font-size: 0.58rem; }
  .donate-btn   { padding: 5px 10px; font-size: 0.55rem; }
  .iban-btn     { padding: 5px 8px;  font-size: 0.55rem; }

  /* Code section */
  .code-section { padding: 20px 12px; }
  .code-block pre { font-size: 0.62rem; }

  /* Footer */
  footer { padding: 10px 12px; }
  .footer-top { flex-direction: column; gap: 4px; align-items: flex-start; }
  .social-row { gap: 10px; flex-wrap: wrap; justify-content: center; }
  .social-link { font-size: 0.42rem; }

  /* Modal */
  .modal-box { padding: 24px 18px; }
  .iban-value { font-size: 0.82rem; padding: 10px 12px; }

  /* ─── INDEX PAGE ─── */
  .rules-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 12px;
  }
  .rules-list { gap: 8px; flex-direction: column; }

  .status-row { gap: 10px; flex-wrap: wrap; }
  .status-chip { padding: 3px 8px; }

  .main-title { font-size: clamp(1.4rem, 8vw, 2.2rem); }

  .decision-panel { height: clamp(120px, 24vw, 160px); }
  .decision-word  { font-size: clamp(2rem, 11vw, 3.8rem); }
  .sub-label      { font-size: 0.42rem; letter-spacing: 0.2em; }

  .ticker-row { gap: 10px; flex-wrap: wrap; justify-content: center; }
  .ask-btn    { padding: 11px 32px; font-size: 0.68rem; }

  .corner-deco { display: none; }

  /* ─── DAC PAGE ─── */
  .dac-layout {
    display: flex;
    flex-direction: column;
    overflow: visible;
    min-height: 0;
  }
  .space-panel {
    /* Sabit yükseklik + position:relative zorunlu — canvas inset:0 için */
    position: relative;
    height: 260px !important;
    min-height: 260px !important;
    flex-shrink: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    /* Yıldızların görünmesi için arka plan */
    background: radial-gradient(ellipse at center, #0a0a1a 0%, #030308 100%) !important;
  }
  /* Canvas explicit boyut — JS resize tetiklenmeden önce de görünsün */
  .space-panel #star-canvas {
    position: absolute;
    top: 0; left: 0;
    width: 100% !important;
    height: 100% !important;
  }
  /* Orbital grubu merkeze taşı */
  .space-panel > div[style*="top:30%"] {
    top: 40% !important;
    left: 50% !important;
  }
  .ctrl-panel { overflow-y: visible; }
  .ctrl-inner { padding: 18px 14px; gap: 16px; }
  .ctrl-title { font-size: 0.65rem; padding-bottom: 10px; }

  .signal-input { font-size: 2rem; padding: 12px 14px; }
  .numpad-btn   { padding: 10px 0; font-size: 0.85rem; }
  .transmit-btn { font-size: 0.72rem; padding: 14px; }

  .tx-row {
    grid-template-columns: 40px 36px 1fr 60px 50px;
    font-size: 0.48rem;
  }
  .tx-row .tx-volt { display: none; }

  .recent-section { padding: 16px 14px; }
  .code-section-wrapper { max-height: none; overflow-y: visible; }
  .space-status { font-size: 0.5rem; }

  /* ─── SIMPLE PAGE ─── */
  .simple-inner { padding: 20px 12px 40px; }
  .arr-grid { grid-template-columns: 1fr; }

  .pairs-table th,
  .pairs-table td { font-size: 0.6rem; padding: 6px 8px; }

  .pairs-table th:last-child,
  .pairs-table td:last-child { display: none; }

  .rand-display { padding: 14px 18px; }
  .rand-num     { font-size: 2.8rem; }
  .simple-code-grid { grid-template-columns: 1fr; }
  .regen-btn { padding: 8px 18px; font-size: 0.62rem; }

  /* Mobile hamburger nav */
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px; height: 32px;
    background: transparent;
    border: 1px solid var(--border);
    cursor: pointer;
    flex-shrink: 0;
  }
  .mobile-nav-toggle span {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--text-dim);
  }
  .mobile-nav-open .header-nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 48px; left: 0; right: 0;
    background: rgba(10,10,10,0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-accent);
    padding: 12px 16px;
    gap: 4px;
    z-index: 300;
  }
  .mobile-nav-open .header-nav .nav-link {
    font-size: 0.65rem;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
  }
}

/* ── VERY SMALL (≤ 380px) ── */
@media (max-width: 380px) {
  .ask-btn     { padding: 10px 20px; font-size: 0.62rem; letter-spacing: 0.15em; }
  .donate-btn  { display: none; }
  .logo        { font-size: 0.65rem; }
  .decision-panel { height: 110px; }
  .decision-word  { font-size: clamp(1.6rem, 10vw, 2.8rem); }
  .space-panel    { height: 200px !important; min-height: 200px !important; }
  .signal-input   { font-size: 1.6rem; padding: 10px; }
}