/* =========================================
   TOH STUDIO — Quad Deck DJ Application
   Industrial. All buttons. No compromises.
   ========================================= */

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

:root {
  --orange: #FF5500;
  --neon: #FF7A1A;
  --black: #000000;
  --carbon: #1A1A1A;
  --gunmetal: #2A2E35;
  --steel: #3A3F48;
  --white: #F0EDE8;
  --dim: rgba(240, 237, 232, 0.4);
  --faint: rgba(240, 237, 232, 0.15);
  --orange-dim: rgba(255, 85, 0, 0.15);
  --orange-mid: rgba(255, 85, 0, 0.4);
  --red: #FF2233;
  --green: #22FF66;

  --font-display: 'Bebas Neue', sans-serif;
  --font-ui: 'Michroma', sans-serif;
  --font-body: 'Barlow Condensed', sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html { -webkit-font-smoothing: antialiased; scrollbar-width: thin; scrollbar-color: var(--orange) var(--carbon); }
body { font-family: var(--font-body); background: var(--black); color: var(--white); overflow-x: hidden; line-height: 1.4; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--carbon); }
::-webkit-scrollbar-thumb { background: var(--orange); }
::selection { background: var(--orange); color: var(--black); }
:focus { outline: none; }
:focus-visible { outline: 1px solid var(--orange); outline-offset: 2px; }

/* ========== LOGIN GATE ========== */
.gate {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

.gate--exiting {
  opacity: 0;
  visibility: hidden;
}

.gate__bg {
  position: absolute;
  inset: 0;
  background: #050505 url('/assets/brick-texture.png') repeat center center;
  background-size: 500px auto;
}

/* Vignette + orange ambient glow from the neon sign */
.gate__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at center, rgba(255, 85, 0, 0.03) 0%, transparent 50%),
              radial-gradient(ellipse at center, transparent 20%, rgba(0,0,0,0.85) 100%);
}

.gate__box {
  position: relative;
  z-index: 1;
  width: 360px;
  max-width: 90vw;
  padding: 3rem 2.5rem;
  background: rgba(10, 10, 10, 0.92);
  border: 1px solid rgba(255, 85, 0, 0.12);
  box-shadow: 0 0 80px rgba(255, 85, 0, 0.06), 0 20px 60px rgba(0,0,0,0.5);
  text-align: center;
  animation: gateAppear 0.8s var(--ease) forwards;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

@keyframes gateAppear {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.gate__box--shake {
  animation: gateShake 0.4s ease-in-out;
}

@keyframes gateShake {
  0%, 100% { transform: translateX(0); }
  15% { transform: translateX(-8px); }
  30% { transform: translateX(6px); }
  45% { transform: translateX(-5px); }
  60% { transform: translateX(4px); }
  75% { transform: translateX(-2px); }
  90% { transform: translateX(1px); }
}

.gate__logo {
  width: 160px;
  height: auto;
  margin-bottom: 1.5rem;
  opacity: 0.8;
  animation: gatePulse 3s ease-in-out infinite;
}

@keyframes gatePulse {
  0%, 100% { opacity: 0.7; filter: brightness(0.9); }
  50% { opacity: 1; filter: brightness(1.1) drop-shadow(0 0 15px rgba(255, 85, 0, 0.3)); }
}

.gate__title {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.15em;
  color: var(--orange);
  margin-bottom: 0.25rem;
}

.gate__subtitle {
  font-family: var(--font-ui);
  font-size: 0.5rem;
  letter-spacing: 0.35em;
  color: var(--dim);
  margin-bottom: 2.5rem;
}

.gate__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.gate__field {
  text-align: left;
}

.gate__label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.4rem;
  letter-spacing: 0.3em;
  color: var(--orange);
  margin-bottom: 0.4rem;
  opacity: 0.6;
}

.gate__input {
  width: 100%;
  background: var(--black);
  border: 1px solid rgba(255, 85, 0, 0.15);
  border-radius: 0;
  padding: 0.65rem 0.8rem;
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--white);
  transition: border-color 0.3s;
  -webkit-appearance: none;
}

.gate__input::placeholder { color: var(--faint); }
.gate__input:focus { border-color: var(--orange); outline: none; }

.gate__submit {
  width: 100%;
  background: var(--orange);
  border: none;
  padding: 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--black);
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.gate__submit:hover {
  background: var(--neon);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(255, 85, 0, 0.3);
}

.gate__submit:active {
  transform: translateY(0);
  background: #CC4400;
}

.gate__error {
  font-family: var(--font-ui);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  color: var(--red);
  min-height: 1.2em;
  opacity: 0;
  transition: opacity 0.3s;
}

.gate__error.is-visible {
  opacity: 1;
}

.gate__footer {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: rgba(240, 237, 232, 0.2);
  margin-top: 2rem;
}

/* ========== BUTTONS ========== */
.btn {
  font-family: var(--font-ui);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--dim);
  background: var(--carbon);
  border: 1px solid rgba(255, 85, 0, 0.08);
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
  text-transform: uppercase;
}
.btn:hover { border-color: var(--orange-mid); color: var(--white); background: rgba(255, 85, 0, 0.06); }
.btn:active, .btn.is-active { border-color: var(--orange); color: var(--orange); background: var(--orange-dim); }
.btn:disabled { opacity: 0.25; cursor: not-allowed; }

.btn--sm { padding: 0.35rem 0.65rem; font-size: 0.5rem; }
.btn--xs { padding: 0.25rem 0.45rem; font-size: 0.45rem; }

.btn--accent {
  background: var(--orange);
  color: var(--black);
  border-color: var(--orange);
  font-weight: 600;
}
.btn--accent:hover { background: var(--neon); border-color: var(--neon); }
.btn--accent:active, .btn--accent.is-active { background: #CC4400; border-color: #CC4400; }

.btn--rec { color: var(--red); border-color: rgba(255, 34, 51, 0.3); }
.btn--rec:hover { background: rgba(255, 34, 51, 0.1); border-color: var(--red); }
.btn--rec.is-active { background: var(--red); color: var(--black); border-color: var(--red); animation: recPulse 1s infinite; }
@keyframes recPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

.btn--fx { min-width: 4.5rem; }
.btn--fx.is-active { background: var(--orange-dim); border-color: var(--orange); color: var(--orange); box-shadow: 0 0 8px var(--orange-dim); }

.btn--stem { min-width: 4rem; }
.btn--stem.is-muted { opacity: 0.25; text-decoration: line-through; border-color: var(--faint); }
.btn--stem.is-solo { border-color: var(--green); color: var(--green); background: rgba(34, 255, 102, 0.08); }

.btn--pad {
  width: 2.5rem;
  height: 2.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-color: var(--orange-dim);
}
.btn--pad.is-set { background: var(--orange-dim); border-color: var(--orange); color: var(--orange); }
.btn--pad:active { transform: scale(0.92); }

.btn--sample {
  padding: 0.5rem;
  font-size: 0.45rem;
  border-color: rgba(255, 85, 0, 0.06);
  transition: transform 0.1s, background 0.15s;
}
.btn--sample:active { transform: scale(0.9); background: var(--orange-dim); }

/* ========== NAV ========== */
.snav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1.5rem;
  background: rgba(0, 0, 0, 0.9);
  border-bottom: 1px solid rgba(255, 85, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}
.snav__back { display: flex; align-items: center; }
.snav__logo { height: 28px; width: auto; opacity: 0.7; transition: opacity 0.3s; }
.snav__logo:hover { opacity: 1; }
.snav__title { font-family: var(--font-display); font-size: 1.4rem; letter-spacing: 0.2em; color: var(--orange); }
.snav__status { font-family: var(--font-ui); font-size: 0.5rem; letter-spacing: 0.2em; color: var(--dim); }
.snav__status.is-online { color: var(--green); }

/* ========== MASTER ========== */
.master {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--carbon);
  border-bottom: 1px solid rgba(255, 85, 0, 0.06);
  align-items: center;
}
.master__left { display: flex; gap: 1.5rem; align-items: center; }
.master__center { display: flex; align-items: center; gap: 1rem; justify-content: center; }
.master__right { display: flex; gap: 1.5rem; align-items: center; justify-content: flex-end; }

.master__group { display: flex; flex-direction: column; gap: 0.35rem; }
.master__label { font-family: var(--font-ui); font-size: 0.4rem; letter-spacing: 0.25em; color: var(--dim); }
.master__vol-btns, .master__rec-btns, .master__mic-btns { display: flex; align-items: center; gap: 0.3rem; }
.master__vol-val, .master__mic-val { font-family: var(--font-ui); font-size: 0.55rem; color: var(--orange); min-width: 1.5rem; text-align: center; }

.master__bpm { text-align: center; }
.master__bpm-val { font-family: var(--font-display); font-size: 2rem; color: var(--orange); line-height: 1; display: block; }
.master__bpm-unit { font-family: var(--font-ui); font-size: 0.4rem; letter-spacing: 0.3em; color: var(--dim); }

.xfade { display: flex; flex-direction: column; gap: 0.25rem; }
.xfade__stepped, .xfade__auto { display: flex; gap: 0.2rem; }

/* ========== DECKS ========== */
.decks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  padding: 1px;
  background: rgba(255, 85, 0, 0.04);
}

.deck {
  background: var(--black);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 0;
}

.deck__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid rgba(255, 85, 0, 0.06);
}
.deck__id {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--orange);
  line-height: 1;
  min-width: 1.2rem;
}
.deck__name {
  font-family: var(--font-ui);
  font-size: 0.45rem;
  letter-spacing: 0.15em;
  color: var(--dim);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.deck__bpm {
  font-family: var(--font-ui);
  font-size: 0.5rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

/* Waveform */
.deck__waveform {
  width: 100%;
  height: 60px;
  background: var(--carbon);
  border: 1px solid rgba(255, 85, 0, 0.06);
  cursor: pointer;
}

.deck__time {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.45rem;
  letter-spacing: 0.1em;
  color: var(--dim);
}
.deck__time-bar { flex: 1; height: 2px; background: var(--faint); overflow: hidden; }
.deck__time-progress { height: 100%; width: 0%; background: var(--orange); transition: width 0.1s linear; }

/* Sections */
.deck__section {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.deck__section--split { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.deck__section-label {
  font-family: var(--font-ui);
  font-size: 0.35rem;
  letter-spacing: 0.25em;
  color: rgba(255, 85, 0, 0.4);
  text-transform: uppercase;
}

.deck__row {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: nowrap;
}
.deck__row--wrap { flex-wrap: wrap; }

.deck__val {
  font-family: var(--font-ui);
  font-size: 0.5rem;
  color: var(--orange);
  min-width: 2rem;
  text-align: center;
  letter-spacing: 0.1em;
}

.deck__sync-row {
  display: flex;
  gap: 0.3rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 85, 0, 0.06);
}

/* ========== SAMPLES ========== */
.samples {
  padding: 0.75rem 1.5rem;
  background: var(--carbon);
  border-top: 1px solid rgba(255, 85, 0, 0.06);
}
.samples__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.5rem; }
.samples__title { font-family: var(--font-ui); font-size: 0.45rem; letter-spacing: 0.25em; color: var(--dim); }
.samples__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(4.5rem, 1fr));
  gap: 0.25rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.samples__grid.is-open { max-height: 300px; }

/* ========== DEMO TRACKS ========== */
.demos {
  padding: 1rem 1.5rem 1.25rem;
  background: var(--black);
  border-top: 1px solid rgba(255, 85, 0, 0.06);
}
.demos__header { margin-bottom: 0.75rem; }
.demos__title { font-family: var(--font-ui); font-size: 0.45rem; letter-spacing: 0.25em; color: var(--orange); display: block; margin-bottom: 0.2rem; }
.demos__sub { font-family: var(--font-body); font-size: 0.7rem; color: var(--dim); }

.demos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.5rem;
}

.demo-card {
  background: var(--carbon);
  border: 1px solid rgba(255, 85, 0, 0.06);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.demo-card:hover {
  border-color: rgba(255, 85, 0, 0.2);
  box-shadow: 0 0 20px rgba(255, 85, 0, 0.04);
}

.demo-card__bpm {
  font-family: var(--font-ui);
  font-size: 0.4rem;
  letter-spacing: 0.2em;
  color: var(--orange);
  opacity: 0.6;
}
.demo-card__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--white);
  line-height: 1.1;
}
.demo-card__genre {
  font-family: var(--font-ui);
  font-size: 0.35rem;
  letter-spacing: 0.2em;
  color: var(--dim);
  margin-bottom: 0.3rem;
}
.demo-card__btns {
  display: flex;
  gap: 0.2rem;
}

/* ========== MODALS ========== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__box {
  background: var(--carbon);
  border: 1px solid rgba(255, 85, 0, 0.15);
  padding: 2rem;
  min-width: 320px;
  max-width: 90vw;
}
.modal__title { font-family: var(--font-display); font-size: 1.3rem; letter-spacing: 0.1em; color: var(--orange); display: block; margin-bottom: 1.5rem; }
.modal__input {
  width: 100%;
  background: var(--black);
  border: 1px solid rgba(255, 85, 0, 0.15);
  padding: 0.6rem 0.8rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--white);
  margin-bottom: 1.5rem;
}
.modal__input::placeholder { color: var(--faint); }
.modal__input:focus { border-color: var(--orange); }
.modal__btns { display: flex; gap: 0.5rem; }
.modal__stems { display: grid; gap: 0.75rem; margin-bottom: 1.5rem; }
.modal__stem-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: var(--dim);
  cursor: pointer;
}
.modal__stem-file { font-family: var(--font-body); font-size: 0.75rem; color: var(--dim); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
  .decks { grid-template-columns: 1fr 1fr; }
  .deck__row { flex-wrap: wrap; }
}
@media (max-width: 900px) {
  .master { grid-template-columns: 1fr; gap: 0.75rem; }
  .master__left, .master__right { justify-content: center; flex-wrap: wrap; }
  .master__center { order: -1; }
}
@media (max-width: 768px) {
  .decks { grid-template-columns: 1fr; }
  .deck__section--split { grid-template-columns: 1fr; }
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}