/* =====================================================
   DAVID HUB — KEY SYSTEM  |  style.css
   Dark + Neon + Premium
===================================================== */

:root {
  --bg:        #080b12;
  --bg2:       #0d1120;
  --card:      #101624;
  --card2:     #141c2e;
  --border:    #1e2d4a;
  --neon:      #00f0ff;
  --neon2:     #7b2fff;
  --neon3:     #ff2fff;
  --white:     #eef2ff;
  --muted:     #4a5680;
  --green:     #00ffa3;
  --yellow:    #ffdd57;
  --red:       #ff4466;
  --yt:        #ff2929;
  --dc:        #5865f2;
  --font-head: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --shadow-neon: 0 0 20px rgba(0,240,255,.25), 0 0 60px rgba(0,240,255,.08);
  --shadow-card: 0 8px 40px rgba(0,0,0,.6);
  --radius: 14px;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  overflow: hidden;
}

/* ---- BACKGROUND ---- */
.bg-grid {
  position: fixed; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(0,240,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,.03) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: grid-drift 20s linear infinite;
}
@keyframes grid-drift { from { background-position: 0 0; } to { background-position: 40px 40px; } }

.noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- SCREENS ---- */
.screen {
  position: fixed; inset: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .5s ease, transform .5s ease;
  transform: translateY(20px);
}
.screen.active {
  opacity: 1; pointer-events: all; transform: translateY(0);
}
.screen.exit {
  opacity: 0; transform: translateY(-20px);
}

/* ---- CARD ---- */
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 40px;
  width: min(420px, 92vw);
  text-align: center;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon), transparent);
}
.card.wide { width: min(520px, 95vw); }

/* ---- LOGO ---- */
.logo-wrap {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
}
.logo-ring {
  position: absolute;
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 1.5px solid var(--neon);
  box-shadow: 0 0 18px rgba(0,240,255,.4);
  animation: ring-pulse 3s ease-in-out infinite;
}
@keyframes ring-pulse {
  0%,100% { transform: scale(1); opacity: .7; }
  50%      { transform: scale(1.15); opacity: 1; }
}
.logo-text {
  font-family: var(--font-head);
  font-size: 1.6rem; font-weight: 900;
  letter-spacing: .12em;
  color: var(--white);
  padding: 12px 18px;
  z-index: 1;
}
.logo-text .neon {
  color: var(--neon);
  text-shadow: 0 0 12px var(--neon), 0 0 30px rgba(0,240,255,.4);
}

/* ---- TEXT ---- */
h2 {
  font-family: var(--font-head);
  font-size: 1.1rem; font-weight: 700;
  letter-spacing: .08em;
  color: var(--white);
  margin-bottom: 6px;
}
.subtitle {
  font-size: .95rem; color: var(--muted);
  letter-spacing: .04em; margin-bottom: 24px;
}

/* ---- VERSION ---- */
.version-badge {
  display: inline-block;
  font-size: .72rem; font-family: var(--font-head);
  color: var(--neon); background: rgba(0,240,255,.06);
  border: 1px solid rgba(0,240,255,.18);
  border-radius: 20px; padding: 3px 12px;
  margin-bottom: 28px;
  letter-spacing: .1em;
}

/* ---- BUTTONS ---- */
.btn-primary {
  position: relative; overflow: hidden;
  width: 100%; padding: 14px 0;
  font-family: var(--font-head); font-size: .9rem; font-weight: 700;
  letter-spacing: .12em; color: var(--bg);
  background: var(--white);
  border: none; border-radius: 8px; cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  margin-bottom: 8px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255,255,255,.25);
}
.btn-primary:active { transform: translateY(0); }
.btn-glow {
  position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,.25) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform .5s;
}
.btn-primary:hover .btn-glow { transform: translateX(100%); }

/* ---- DIVIDER ---- */
.divider {
  display: flex; align-items: center; gap: 10px;
  color: var(--muted); font-size: .78rem;
  letter-spacing: .1em; text-transform: uppercase;
  margin: 20px 0;
}
.divider::before, .divider::after {
  content: ''; flex: 1; height: 1px;
  background: var(--border);
}

/* ---- SOCIAL BUTTONS ---- */
.social-buttons { display: flex; flex-direction: column; gap: 10px; }
.btn-social {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 18px; border-radius: 8px;
  font-family: var(--font-body); font-size: .95rem; font-weight: 600;
  letter-spacing: .05em; text-decoration: none;
  border: 1px solid; cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-social svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-social.youtube {
  color: var(--yt); border-color: rgba(255,41,41,.25);
  background: rgba(255,41,41,.06);
}
.btn-social.youtube:hover {
  background: rgba(255,41,41,.12); transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(255,41,41,.2);
}
.btn-social.discord {
  color: var(--dc); border-color: rgba(88,101,242,.25);
  background: rgba(88,101,242,.06);
}
.btn-social.discord:hover {
  background: rgba(88,101,242,.12); transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(88,101,242,.2);
}

/* ---- LOADING ---- */
.loading-wrap {
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.spinner {
  position: relative; width: 90px; height: 90px;
  display: flex; align-items: center; justify-content: center;
}
.spinner-ring {
  position: absolute; inset: 0;
  border-radius: 50%; border: 2px solid transparent;
}
.ring1 {
  border-top-color: var(--neon);
  animation: spin1 1.2s linear infinite;
  box-shadow: 0 0 14px rgba(0,240,255,.4);
}
.ring2 {
  inset: 12px;
  border-bottom-color: var(--neon2);
  animation: spin1 .8s linear infinite reverse;
  box-shadow: inset 0 0 10px rgba(123,47,255,.3);
}
@keyframes spin1 { to { transform: rotate(360deg); } }
.spinner-core {
  position: absolute; inset: 26px;
  border-radius: 50%; background: var(--card);
  display: flex; align-items: center; justify-content: center;
}
.core-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 12px var(--neon);
  animation: dot-pulse 1s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%,100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.6); opacity: .6; }
}
.loading-text {
  font-family: var(--font-head); font-size: 1rem;
  letter-spacing: .1em; color: var(--white);
}
.loading-sub {
  font-size: .85rem; color: var(--muted); letter-spacing: .04em;
}
.dots::after {
  content: '';
  animation: dots 1.5s steps(4, end) infinite;
}
@keyframes dots {
  0%  { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* ---- RGB BAR ---- */
.rgb-bar-wrap {
  width: 280px; height: 8px;
  background: var(--card2); border-radius: 99px;
  overflow: hidden; border: 1px solid var(--border);
}
.rgb-bar {
  height: 100%; width: 0%; border-radius: 99px;
  background: linear-gradient(90deg, #00f0ff, #7b2fff, #ff2fff, #00f0ff);
  background-size: 200%;
  transition: width .12s linear;
  animation: rgb-shift 2s linear infinite;
}
@keyframes rgb-shift { to { background-position: 200%; } }

/* ---- STEP HEADER ---- */
.step-header { margin-bottom: 24px; }
.step-badge {
  display: inline-block;
  font-family: var(--font-head); font-size: .68rem;
  letter-spacing: .18em; color: var(--neon);
  background: rgba(0,240,255,.06); border: 1px solid rgba(0,240,255,.2);
  border-radius: 20px; padding: 4px 14px;
  margin-bottom: 12px;
}

/* ---- TASK BUTTONS ---- */
.task-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.btn-task {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: 10px;
  background: var(--card2); border: 1px solid var(--border);
  cursor: pointer; text-align: left;
  transition: border-color .25s, background .25s, transform .2s;
  color: var(--white);
}
.btn-task:hover {
  border-color: rgba(0,240,255,.3);
  background: rgba(0,240,255,.04);
  transform: translateX(4px);
}
.btn-task.done {
  border-color: rgba(0,255,163,.3);
  background: rgba(0,255,163,.05);
}
.task-icon {
  width: 36px; height: 36px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.task-icon svg { width: 18px; height: 18px; }
.task-icon.yt  { background: rgba(255,41,41,.12); color: var(--yt); }
.task-icon.dc  { background: rgba(88,101,242,.12); color: var(--dc); }
.task-icon.vid { background: rgba(0,240,255,.1); color: var(--neon); }

.task-info { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.task-name  { font-size: .92rem; font-weight: 600; letter-spacing: .03em; }
.task-status { font-size: .76rem; color: var(--muted); }
.btn-task.done .task-status { color: var(--green); }

.task-check {
  width: 24px; height: 24px; border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; color: transparent;
  transition: all .3s;
  flex-shrink: 0;
}
.btn-task.done .task-check {
  background: var(--green); border-color: var(--green);
  color: var(--bg); box-shadow: 0 0 10px rgba(0,255,163,.4);
}

/* ---- PROGRESS ---- */
.progress-bar-wrap { margin-bottom: 20px; }
.progress-label {
  font-size: .8rem; color: var(--muted);
  text-align: right; margin-bottom: 6px;
  letter-spacing: .04em;
}
.progress-track {
  height: 6px; background: var(--card2); border-radius: 99px;
  overflow: hidden; border: 1px solid var(--border);
}
.progress-fill {
  height: 100%; width: 0%; border-radius: 99px;
  background: linear-gradient(90deg, var(--neon), var(--neon2));
  box-shadow: 0 0 10px rgba(0,240,255,.4);
  transition: width .4s cubic-bezier(.4,0,.2,1);
}

/* ---- BTN FINAL ---- */
.btn-final {
  position: relative; overflow: hidden;
  width: 100%; padding: 14px 0;
  font-family: var(--font-head); font-size: .9rem; font-weight: 700;
  letter-spacing: .1em; color: var(--bg);
  background: linear-gradient(135deg, var(--neon), var(--neon2));
  border: none; border-radius: 8px; cursor: pointer;
  transition: transform .2s, box-shadow .2s, opacity .3s;
  box-shadow: 0 4px 24px rgba(0,240,255,.3);
}
.btn-final:hover:not(.disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,240,255,.45);
}
.btn-final:hover:not(.disabled) .btn-glow { transform: translateX(100%); }
.btn-final.disabled {
  opacity: .35; cursor: not-allowed;
  filter: grayscale(.5);
}

/* ---- SUCCESS ---- */
.success-icon {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  width: 72px; height: 72px; margin: 0 auto 20px;
  font-size: 2rem;
}
.success-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--green);
  box-shadow: 0 0 18px rgba(0,255,163,.4);
  animation: ring-pulse 2s ease-in-out infinite;
}

/* ---- KEY BOX ---- */
.key-title {
  font-family: var(--font-head);
  font-size: 1.1rem; font-weight: 700;
  color: var(--white); margin-bottom: 6px;
}
.key-box {
  position: relative;
  display: flex; align-items: center;
  background: var(--card2); border: 1px solid rgba(0,240,255,.25);
  border-radius: 10px; padding: 12px 14px;
  margin: 20px 0 12px; gap: 12px;
  box-shadow: inset 0 0 20px rgba(0,240,255,.04), 0 0 20px rgba(0,240,255,.1);
}
.key-label {
  font-family: var(--font-head); font-size: .65rem;
  color: var(--neon); letter-spacing: .14em;
  background: rgba(0,240,255,.08); border: 1px solid rgba(0,240,255,.15);
  border-radius: 4px; padding: 2px 7px;
  flex-shrink: 0;
}
.key-value {
  flex: 1; font-family: var(--font-head); font-size: .9rem;
  color: var(--neon); letter-spacing: .08em;
  text-shadow: 0 0 8px rgba(0,240,255,.5);
  word-break: break-all; text-align: left;
}
.btn-copy {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px; border-radius: 6px;
  background: rgba(0,240,255,.08); border: 1px solid rgba(0,240,255,.2);
  color: var(--neon); cursor: pointer; flex-shrink: 0;
  font-family: var(--font-body); font-size: .82rem; font-weight: 600;
  transition: background .2s, transform .15s;
}
.btn-copy svg { width: 14px; height: 14px; }
.btn-copy:hover { background: rgba(0,240,255,.16); transform: scale(1.04); }
.btn-copy.copied { background: rgba(0,255,163,.1); border-color: rgba(0,255,163,.3); color: var(--green); }

.key-warning {
  font-size: .78rem; color: #ff8c42;
  background: rgba(255,140,66,.06); border: 1px solid rgba(255,140,66,.18);
  border-radius: 6px; padding: 8px 12px;
  margin-bottom: 20px; letter-spacing: .03em;
}

/* ---- BTN OUTLINE ---- */
.btn-outline {
  width: 100%; padding: 12px 0;
  font-family: var(--font-head); font-size: .82rem; font-weight: 700;
  letter-spacing: .1em; color: var(--muted);
  background: transparent; border: 1px solid var(--border);
  border-radius: 8px; cursor: pointer;
  transition: border-color .2s, color .2s, transform .2s;
}
.btn-outline:hover {
  border-color: var(--neon); color: var(--neon);
  transform: translateY(-2px);
}

/* ---- CORNER DECO ---- */
.card::after {
  content: '';
  position: absolute; bottom: -1px; right: -1px;
  width: 40px; height: 40px;
  border-bottom: 2px solid var(--neon);
  border-right: 2px solid var(--neon);
  border-bottom-right-radius: var(--radius);
  opacity: .5;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }