/* ================================================================
   HAZELNART DESIGN STUDIO — App Mockup Styles
   Extends styles.css base
   ================================================================ */

/* ── Studio Hero ──────────────────────────────────────────────── */
.studio-hero-section {
  padding: 5rem 0 3.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.studio-hero-inner { max-width: 760px; }
.studio-steps {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  margin-top: 2rem;
}
.studio-step {
  display: flex; align-items: center; gap: 0.6rem;
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--r); padding: 0.6rem 1.1rem;
  font-family: var(--ui); font-size: 0.8125rem; font-weight: 600;
  color: var(--text-2);
}
.studio-step span {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--gold); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700; flex-shrink: 0;
}
.studio-step-arrow {
  color: var(--text-3); font-size: 1.1rem; font-weight: 300;
}

/* ── Studio Section Wrap ──────────────────────────────────────── */
.studio-section {
  padding: 3rem 0 4rem;
  background: #121212;
}
.studio-wrap {
  max-width: 1300px; margin: 0 auto; padding: 0 1.5rem;
}

/* ================================================================
   APP WINDOW — Design Software Mockup
   ================================================================ */
.app-window {
  background: #1f1f1f;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.06);
  display: flex; flex-direction: column;
  height: auto;
  min-height: 600px;
}

/* ── Title Bar ────────────────────────────────────────────────── */
.app-titlebar {
  display: flex; align-items: center;
  background: #151515;
  padding: 0 1rem;
  height: 38px;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  user-select: none;
}
.app-titlebar__dots {
  display: flex; gap: 6px; align-items: center; margin-right: 1rem;
}
.dot {
  width: 12px; height: 12px; border-radius: 50%;
}
.dot--red    { background: #ff5f57; }
.dot--yellow { background: #ffbd2e; }
.dot--green  { background: #28c840; }

.app-titlebar__center {
  flex: 1; display: flex; align-items: center; justify-content: center;
  gap: 0.5rem;
}
.app-titlebar__icon {
  width: 16px; height: 16px; opacity: 0.7;
}
.app-titlebar__name {
  font-family: var(--ui); font-size: 0.75rem;
  color: rgba(255,255,255,0.45); letter-spacing: 0.02em;
}
.app-titlebar__end { width: 80px; }

/* ── Menu Bar ─────────────────────────────────────────────────── */
.app-menubar {
  display: flex; align-items: center; gap: 0;
  background: #1a1a1a;
  padding: 0 1rem;
  height: 28px;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.app-menu-item {
  font-family: var(--ui); font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  padding: 0 0.7rem; cursor: default;
  height: 100%; display: flex; align-items: center;
  transition: background 0.15s, color 0.15s;
  border-radius: 3px;
}
.app-menu-item:hover,
.app-menu-item--active {
  background: rgba(0,0,0,0.15);
  color: rgba(255,255,255,0.85);
}

/* ── Template Bar ─────────────────────────────────────────────── */
.app-templatebar {
  display: flex; align-items: center; gap: 0.4rem;
  background: #1b1b1b; padding: 0.45rem 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow-x: auto; flex-shrink: 0; scrollbar-width: none;
}
.app-templatebar::-webkit-scrollbar { display: none; }
@media (min-width: 769px) {
  .app-templatebar { flex-wrap: wrap; overflow: visible; row-gap: 0.4rem; }
  .app-templatebar .opt-sep { display: none; }
  .tpl-chip--photo { margin-left: auto; }
}
.tpl-label {
  font-family: var(--ui); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.35); flex-shrink: 0; margin-right: 0.2rem;
}
.tpl-chip {
  flex-shrink: 0; white-space: nowrap; cursor: pointer;
  padding: 0.3rem 0.75rem; border-radius: 100px;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  font-family: var(--ui); font-size: 0.72rem; font-weight: 500; color: rgba(255,255,255,0.72);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tpl-chip:hover { background: rgba(255,255,255,0.12); color: #fff; }
.tpl-chip.active { background: var(--gold); border-color: var(--gold); color: #fff; }
.tpl-chip--photo { border-style: dashed; border-color: rgba(212,212,212,0.5); color: var(--gold-lt); }
.tpl-chip--photo:hover { background: rgba(0,0,0,0.15); color: #fff; }

/* ── Options Bar ──────────────────────────────────────────────── */
.app-optionsbar {
  display: flex; align-items: center; gap: 0.6rem;
  background: #232323;
  padding: 0 0.75rem;
  height: 38px;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow-x: auto;
}
.app-optionsbar::-webkit-scrollbar { display: none; }

.opt-group {
  display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0;
}
.opt-group label {
  font-family: var(--ui); font-size: 0.65rem;
  color: rgba(255,255,255,0.35); letter-spacing: 0.08em;
  text-transform: uppercase;
}
.opt-slider {
  -webkit-appearance: none; appearance: none;
  width: 90px; height: 3px;
  background: rgba(255,255,255,0.12);
  border-radius: 2px; outline: none;
}
.opt-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--gold); cursor: pointer;
}
.opt-val {
  font-family: var(--ui); font-size: 0.7rem;
  color: rgba(255,255,255,0.5); min-width: 30px;
}
.opt-sep {
  width: 1px; height: 20px;
  background: rgba(255,255,255,0.08); flex-shrink: 0; margin: 0 0.2rem;
}
.opt-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  font-family: var(--ui); font-size: 0.7rem;
  color: rgba(255,255,255,0.65);
  cursor: pointer; flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
}
.opt-btn:hover { background: rgba(255,255,255,0.12); color: #fff; }
.opt-btn--danger { color: #f87171; }
.opt-btn--danger:hover { background: rgba(248,113,113,0.15); }

.opt-select {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px; padding: 0.2rem 0.5rem;
  font-family: var(--ui); font-size: 0.7rem;
  color: rgba(255,255,255,0.65); cursor: pointer;
  outline: none; flex-shrink: 0;
}
.opt-select option { background: #1f1f1f; color: #fff; }

.opt-shape-mode {
  display: flex; background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1); border-radius: 4px; overflow: hidden;
}
.opt-mode-btn {
  background: none; border: none;
  padding: 0.2rem 0.5rem;
  font-size: 0.7rem; color: rgba(255,255,255,0.5);
  cursor: pointer; transition: background 0.15s, color 0.15s;
}
.opt-mode-btn.active { background: var(--gold); color: #fff; }

/* ── App Body ─────────────────────────────────────────────────── */
.app-body {
  display: flex; flex: 1; overflow: hidden;
  min-height: 480px;
}

/* ── Left Toolbar ─────────────────────────────────────────────── */
.app-toolbar {
  width: 44px; background: #262626;
  display: flex; flex-direction: column; align-items: center;
  padding: 0.5rem 0; gap: 0;
  border-right: 1px solid rgba(255,255,255,0.05);
  flex-shrink: 0; overflow-y: auto;
}
.app-toolbar::-webkit-scrollbar { display: none; }

.tool-group {
  display: flex; flex-direction: column; align-items: center;
  width: 100%; padding: 0 4px; gap: 2px;
}
.tool-sep {
  width: 26px; height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 5px 0; flex-shrink: 0;
}
.tool-btn {
  width: 36px; height: 36px; border-radius: 6px;
  background: none; border: none;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.45);
  cursor: pointer; position: relative;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}
.tool-btn:hover { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.8); }
.tool-btn.active {
  background: rgba(0,0,0,0.2);
  color: var(--gold);
  border: 1px solid rgba(0,0,0,0.4);
}
.tool-btn svg { pointer-events: none; }

/* Tooltip */
.tool-btn::after {
  content: attr(data-tip);
  position: absolute; left: calc(100% + 8px); top: 50%; transform: translateY(-50%);
  background: #0d0d0d; color: #fff; border: 1px solid rgba(255,255,255,0.12);
  padding: 4px 8px; border-radius: 4px;
  font-family: var(--ui); font-size: 0.65rem; white-space: nowrap;
  opacity: 0; pointer-events: none; z-index: 100;
  transition: opacity 0.15s;
}
.tool-btn:hover::after { opacity: 1; }

/* Toolbar Color Swatches */
.tool-colors {
  display: flex; flex-direction: column; align-items: center;
  padding: 6px 4px; width: 100%; gap: 4px;
}
.tool-color-stack {
  position: relative; width: 30px; height: 30px; cursor: pointer;
}
.color-swatch--bg {
  position: absolute; bottom: 0; right: 0;
  width: 20px; height: 20px; border-radius: 3px;
  border: 1.5px solid rgba(255,255,255,0.2);
}
.color-swatch--fg {
  position: absolute; top: 0; left: 0;
  width: 20px; height: 20px; border-radius: 3px;
  border: 1.5px solid rgba(255,255,255,0.4);
  cursor: pointer;
}
.tool-color-input {
  width: 28px; height: 14px; border: none; border-radius: 2px;
  cursor: pointer; padding: 0; background: none; outline: none;
}
.tool-color-input::-webkit-color-swatch-wrapper { padding: 0; }
.tool-color-input::-webkit-color-swatch { border: 1px solid rgba(255,255,255,0.2); border-radius: 2px; }

/* ── Canvas Outer ─────────────────────────────────────────────── */
.app-canvas-outer {
  flex: 1; background: #2b2b2b;
  display: flex; align-items: center; justify-content: center;
  overflow: auto; position: relative;
}
.canvas-bg-dots {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 20px 20px; pointer-events: none;
}
.app-canvas-shadow {
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  position: relative; flex-shrink: 0;
}
#sketchCanvas {
  display: block; cursor: crosshair;
  touch-action: none;
}

/* ── Right Panel ──────────────────────────────────────────────── */
.app-panel {
  width: 180px; background: #1f1f1f;
  border-left: 1px solid rgba(255,255,255,0.05);
  display: flex; flex-direction: column;
  overflow-y: auto; flex-shrink: 0;
}
.app-panel::-webkit-scrollbar { width: 3px; }
.app-panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.panel-section {
  padding: 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.05);
}
.panel-title {
  font-family: var(--ui); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255,255,255,0.25); margin-bottom: 0.6rem;
}
.panel-color-row {
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem;
}
.panel-color-preview {
  width: 28px; height: 28px; border-radius: 5px;
  border: 1.5px solid rgba(255,255,255,0.2);
  cursor: pointer; flex-shrink: 0;
  transition: transform 0.15s;
}
.panel-color-preview:hover { transform: scale(1.1); }
.panel-color-label {
  font-family: var(--ui); font-size: 0.65rem;
  color: rgba(255,255,255,0.4);
}
.panel-color-input {
  width: 100%; height: 24px; border: none; border-radius: 4px;
  cursor: pointer; padding: 0; background: none;
  margin-bottom: 0.6rem;
}
.panel-color-input::-webkit-color-swatch-wrapper { padding: 0; }
.panel-color-input::-webkit-color-swatch { border: 1px solid rgba(255,255,255,0.1); border-radius: 3px; }

.panel-swatches {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 3px;
}
.panel-swatch {
  aspect-ratio: 1; border-radius: 3px;
  border: 1.5px solid rgba(255,255,255,0.08);
  cursor: pointer; transition: transform 0.12s, border-color 0.12s;
}
.panel-swatch:hover { transform: scale(1.2); border-color: rgba(255,255,255,0.5); }
.panel-swatch.selected { border-color: var(--gold); transform: scale(1.15); }

.panel-row {
  display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.4rem;
}
.panel-row label {
  font-family: var(--ui); font-size: 0.62rem;
  color: rgba(255,255,255,0.35); min-width: 36px;
}
.panel-slider {
  -webkit-appearance: none; appearance: none;
  flex: 1; height: 3px;
  background: rgba(255,255,255,0.12);
  border-radius: 2px; outline: none;
}
.panel-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--gold); cursor: pointer;
}
.panel-num {
  font-family: var(--ui); font-size: 0.62rem;
  color: rgba(255,255,255,0.45); min-width: 24px; text-align: right;
}
.panel-brush-preview {
  background: rgba(255,255,255,0.06);
  border-radius: 4px; overflow: hidden;
  margin-top: 0.5rem;
}
#brushPreview { display: block; width: 100%; height: 32px; }

.panel-actions-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
}
.panel-action-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px; padding: 0.3rem 0.3rem;
  font-family: var(--ui); font-size: 0.62rem;
  color: rgba(255,255,255,0.5); cursor: pointer;
  transition: background 0.15s, color 0.15s; text-align: center;
}
.panel-action-btn:hover { background: rgba(255,255,255,0.12); color: #fff; }
.panel-action-btn--full { grid-column: 1/-1; color: #f87171; }
.panel-action-btn--full:hover { background: rgba(248,113,113,0.12); color: #fca5a5; }

.panel-layer {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.4rem; border-radius: 4px;
  margin-bottom: 3px; cursor: default;
  border: 1px solid transparent;
}
.panel-layer.active-layer {
  background: rgba(0,0,0,0.1);
  border-color: rgba(0,0,0,0.2);
}
.layer-icon {
  font-size: 0.7rem; opacity: 0.5;
}
.layer-name {
  font-family: var(--ui); font-size: 0.65rem;
  color: rgba(255,255,255,0.6); flex: 1;
}
.layer-visibility {
  font-size: 0.65rem; opacity: 0.4; cursor: pointer;
}
.active-layer .layer-name { color: rgba(255,255,255,0.9); }

/* ── Status Bar ───────────────────────────────────────────────── */
.app-statusbar {
  display: flex; align-items: center; gap: 1rem;
  background: #151515;
  padding: 0 1rem; height: 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  flex-shrink: 0;
}
.app-statusbar span {
  font-family: var(--ui); font-size: 0.62rem;
  color: rgba(255,255,255,0.25);
}
.status-sep { color: rgba(255,255,255,0.1) !important; }

/* ── Text Input Overlay ───────────────────────────────────────── */
.canvas-text-input {
  position: absolute;
  background: rgba(255,255,255,0.9);
  border: 2px solid var(--gold);
  border-radius: 2px;
  outline: none;
  font-family: inherit;
  padding: 2px 4px;
  min-width: 80px;
  z-index: 100;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

/* ================================================================
   BRIEF FORM SECTION
   ================================================================ */
.studio-brief-section {
  padding: 5rem 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.studio-brief-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start;
}
.brief-header { padding-top: 0.5rem; }

.brief-form-wrap {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.brief-sketch-preview {
  display: flex; align-items: center; gap: 1rem;
  background: var(--surface-2);
  border: 1.5px dashed var(--border);
  border-radius: var(--r); padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
}
.sketch-preview-label {
  display: flex; align-items: center; gap: 0.4rem;
  font-family: var(--ui); font-size: 0.75rem;
  color: var(--text-3); flex: 1;
}
#previewCanvas {
  border-radius: 4px; border: 1px solid var(--border);
  width: 120px; height: 75px; flex-shrink: 0;
  background: #fff;
}

.brief-actions {
  display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem;
}
.brief-actions .btn { flex: 1; min-width: 130px; justify-content: center; }
.btn--whatsapp {
  background: #25D366; color: #fff; border: none;
}
.btn--whatsapp:hover { background: #20bf5a; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,211,102,0.3); }

/* ── Brand colours ──────────────────────────────────────────────── */
.brand-colors { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.brand-chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.25rem 0.35rem 0.25rem 0.25rem; border-radius: 100px;
  background: var(--surface-2); border: 1px solid var(--border);
}
.brand-chip__swatch {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid #fff; box-shadow: 0 0 0 1px var(--border-sub); cursor: pointer;
  transition: transform 0.15s;
}
.brand-chip__swatch:hover { transform: scale(1.12); }
.brand-chip__hex { font-family: var(--ui); font-size: 0.72rem; font-weight: 600; color: var(--text-2); letter-spacing: 0.04em; }
.brand-chip__remove {
  width: 20px; height: 20px; border-radius: 50%; border: none;
  background: transparent; color: var(--text-3); font-size: 1rem; line-height: 1; cursor: pointer;
}
.brand-chip__remove:hover { background: rgba(248,113,113,0.15); color: #ef4444; }
.brand-color-add {
  padding: 0.45rem 0.9rem; border-radius: 100px;
  border: 1.5px dashed var(--border); background: transparent;
  font-family: var(--ui); font-size: 0.75rem; font-weight: 600; color: var(--gold); cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.brand-color-add:hover { border-color: var(--gold); background: var(--gold-glow); }
.brand-color-add[hidden] { display: none; }
.brand-color-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form-hint { font-size: 0.75rem; color: var(--text-3); margin-top: 0.45rem; }

/* ── Send / what-happens-next modal ─────────────────────────────── */
.send-modal {
  position: fixed; inset: 0; z-index: 6000;
  display: flex; align-items: center; justify-content: center; padding: 1rem;
  background: rgba(24,24,24,0.72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  animation: sendFade 0.25s var(--ease);
}
.send-modal[hidden] { display: none; }
.send-modal__box {
  position: relative; width: min(480px, 100%); max-height: calc(100vh - 2rem); overflow-y: auto;
  background: var(--surface); border-radius: var(--r-lg); border: 1px solid var(--border);
  padding: 2rem 1.75rem 1.5rem; box-shadow: 0 30px 80px rgba(0,0,0,0.35);
  animation: sendPop 0.3s var(--ease);
}
.send-modal__close {
  position: absolute; top: 0.9rem; right: 0.9rem; width: 32px; height: 32px; border-radius: 50%;
  border: none; background: var(--surface-2); color: var(--text-2); cursor: pointer;
}
.send-modal__close:hover { background: var(--gold); color: #fff; }
.send-modal__badge {
  width: 48px; height: 48px; border-radius: 50%; margin-bottom: 0.9rem;
  display: flex; align-items: center; justify-content: center;
  background: #25D366; color: #fff; font-size: 1.4rem; font-weight: 800;
  box-shadow: 0 0 0 6px rgba(37,211,102,0.15);
}
.send-modal__title { font-family: var(--serif); font-size: 1.5rem; font-weight: 800; color: var(--text); line-height: 1.2; }
.send-modal__sub { font-size: 0.875rem; color: var(--text-2); margin-top: 0.3rem; }
.send-modal__preview {
  display: block; width: 100%; max-height: 220px; object-fit: contain; margin: 1.1rem 0;
  border-radius: var(--r); border: 1px solid var(--border); background: var(--surface-2);
}
.send-modal__steps { list-style: none; counter-reset: step; display: grid; gap: 0.7rem; margin-bottom: 1.25rem; }
.send-modal__steps li {
  counter-increment: step; position: relative; padding-left: 2.1rem;
  font-size: 0.9rem; color: var(--text-2); line-height: 1.55;
}
.send-modal__steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 1.5rem; height: 1.5rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--gold); color: #fff; font-family: var(--ui); font-size: 0.75rem; font-weight: 700;
}
.send-modal__steps b { color: var(--text); }
.send-modal kbd {
  display: inline-block; padding: 0.05rem 0.4rem; border-radius: 4px;
  border: 1px solid var(--border-sub); border-bottom-width: 2px; background: var(--surface-2);
  font-family: var(--ui); font-size: 0.78rem; color: var(--text);
}
.send-modal__actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.send-modal__actions .btn { flex: 1; min-width: 140px; justify-content: center; }
.send-modal__note {
  margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--border-sub);
  font-size: 0.8rem; color: var(--text-3); line-height: 1.6;
}
.send-modal__note strong { color: var(--text-2); }
.send-modal__note a { color: var(--gold); }
@keyframes sendFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes sendPop  { from { opacity: 0; transform: translateY(16px) scale(0.98); } to { opacity: 1; transform: none; } }

/* ================================================================
   HOW IT WORKS
   ================================================================ */
.studio-how-section {
  padding: 5rem 0;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
}
.how-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
  margin-top: 3rem;
}
.how-card {
  background: var(--surface);
  border-radius: var(--r-lg); padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
}
.how-card__num {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--gold); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ui); font-size: 1.25rem; font-weight: 800;
  margin: 0 auto 1.25rem;
}
.how-card__title {
  font-family: var(--ui); font-size: 1rem; font-weight: 700;
  color: var(--text); margin-bottom: 0.6rem;
}
.how-card__desc {
  font-size: 0.875rem; color: var(--text-3); line-height: 1.7;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1100px) {
  .app-panel { width: 150px; }
}

@media (max-width: 900px) {
  .studio-brief-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .how-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .how-card { text-align: left; }
  .how-card__num { margin: 0 0 1rem; }
}

@media (max-width: 768px) {
  .studio-section { padding: 2rem 0; }
  .studio-wrap { padding: 0; }
  .app-window { border-radius: 0; min-height: 500px; }
  .app-panel { display: none; }
  .app-toolbar { width: 38px; }
  .tool-btn { width: 32px; height: 32px; }
  .tool-btn::after { display: none; }
  .app-body { min-height: 380px; }

  .brief-form-wrap { padding: 1.5rem; }
  .brief-actions { flex-direction: column; }
  .brief-actions .btn { min-width: auto; }

  .studio-steps { gap: 0.5rem; }
  .studio-step-arrow { display: none; }
}

@media (max-width: 480px) {
  .app-menubar { display: none; }
  .app-optionsbar { height: auto; min-height: 38px; flex-wrap: nowrap; }
}

/* ── Toast Notification ───────────────────────────────────────── */
.studio-toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(100px);
  background: #1e2d1e; color: #4ade80;
  border: 1px solid rgba(74,222,128,0.3);
  border-radius: var(--r); padding: 0.75rem 1.5rem;
  font-family: var(--ui); font-size: 0.875rem; font-weight: 500;
  z-index: 9999; box-shadow: var(--shadow-md);
  transition: transform 0.4s var(--ease), opacity 0.4s;
  opacity: 0; white-space: nowrap;
  max-width: calc(100vw - 2rem);
}
@media (max-width: 640px) { .studio-toast { white-space: normal; text-align: center; width: max-content; } }
.studio-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.studio-toast.error {
  background: #2d1e1e; color: #f87171;
  border-color: rgba(248,113,113,0.3);
}

/* ── Modal for Text Input ─────────────────────────────────────── */
.text-tool-modal {
  position: fixed; inset: 0; z-index: 5000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
}
.text-tool-modal__box {
  background: var(--surface);
  border-radius: var(--r-lg); padding: 2rem;
  min-width: 320px; box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.text-tool-modal__title {
  font-family: var(--ui); font-size: 0.8rem; font-weight: 700;
  color: var(--text); margin-bottom: 1rem; letter-spacing: 0.05em;
}
.text-tool-modal__input {
  width: 100%; border: 1.5px solid var(--border);
  border-radius: var(--r); padding: 0.6rem 0.9rem;
  font-size: 1rem; outline: none; color: var(--text);
  font-family: var(--body);
  transition: border-color 0.2s;
}
.text-tool-modal__input:focus { border-color: var(--gold); }
.text-tool-modal__actions {
  display: flex; gap: 0.75rem; margin-top: 1rem; justify-content: flex-end;
}