/*
 * Studio — open layout refinement
 * Keeps gold as a focused accent, not as long rails or enclosing borders.
 * Scope: /studio-next/ only. Loaded after the existing visual layers.
 */

:root {
  --sn-gutter: clamp(14px, 2.2vw, 34px);
  --sn-open-line: rgba(255, 255, 255, 0.09);
  --sn-open-line-strong: rgba(255, 255, 255, 0.15);
  --sn-open-surface: rgba(255, 255, 255, 0.018);
}

html[data-theme="light"] {
  --sn-open-line: rgba(17, 19, 21, 0.08);
  --sn-open-line-strong: rgba(17, 19, 21, 0.14);
  --sn-open-surface: rgba(17, 19, 21, 0.018);
}

/* Remove the corridor/grid feeling: no page-long lines, only soft ambient depth. */
body {
  background:
    radial-gradient(ellipse at 8% 5%, rgba(245, 196, 0, 0.065), transparent 32rem),
    radial-gradient(ellipse at 92% 30%, rgba(255, 255, 255, 0.025), transparent 34rem),
    radial-gradient(ellipse at 46% 84%, rgba(245, 196, 0, 0.025), transparent 38rem),
    var(--sn-bg);
}

body::before {
  inset: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(245, 196, 0, 0.035), transparent 18rem),
    radial-gradient(circle at 82% 52%, rgba(255, 255, 255, 0.018), transparent 22rem);
  background-size: auto;
  mask-image: none;
  opacity: 1;
}

body::after {
  inset: 0;
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  background:
    radial-gradient(circle at 100% 8%, rgba(245, 196, 0, 0.045), transparent 21rem),
    radial-gradient(circle at 0% 72%, rgba(245, 196, 0, 0.022), transparent 25rem);
  box-shadow: none;
}

html[data-theme="light"] body::before {
  background:
    radial-gradient(circle at 18% 18%, rgba(217, 173, 0, 0.045), transparent 18rem),
    radial-gradient(circle at 82% 52%, rgba(17, 19, 21, 0.018), transparent 22rem);
}

/* Give Studio more horizontal breathing room on tablet/desktop. */
.sn-shell {
  width: min(1380px, 100%);
  padding-inline: var(--sn-gutter);
}

.sn-main {
  padding-top: clamp(18px, 2.5vw, 30px);
}

.sn-view {
  overflow-x: clip;
}

.sn-section {
  position: relative;
  isolation: isolate;
  margin-top: clamp(36px, 5vw, 58px);
}

.sn-section::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -22px;
  right: -5%;
  width: min(280px, 38vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 196, 0, 0.025), transparent 68%);
  pointer-events: none;
}

.sn-section:nth-of-type(even)::before {
  right: auto;
  left: -7%;
  opacity: 0.72;
}

/* Never frame the whole page/section with accent rails. */
.sn-shell,
.sn-main,
.sn-view,
.sn-section,
.sn-level-map,
.sn-module-list,
.sn-course-lesson {
  border-inline: 0 !important;
}

/* Wider spacing makes the cards feel like independent modules, not a boxed timeline. */
.sn-grid,
.sn-activity-grid {
  gap: clamp(14px, 1.7vw, 20px);
}

.sn-level-map,
.sn-module-list {
  gap: 11px;
}

.sn-card,
.sn-level,
.sn-module-card,
.sn-activity-card,
.sn-simulation-feature,
.sn-course-hero,
.sn-course-lesson__copy,
.sn-course-lesson__stage {
  border-color: var(--sn-open-line) !important;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.025),
    0 18px 48px rgba(0, 0, 0, 0.15);
}

html[data-theme="light"] .sn-card,
html[data-theme="light"] .sn-level,
html[data-theme="light"] .sn-module-card,
html[data-theme="light"] .sn-activity-card,
html[data-theme="light"] .sn-simulation-feature,
html[data-theme="light"] .sn-course-hero,
html[data-theme="light"] .sn-course-lesson__copy,
html[data-theme="light"] .sn-course-lesson__stage {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 16px 38px rgba(24, 26, 28, 0.055);
}

.sn-card,
.sn-activity-card {
  border-radius: 24px;
}

.sn-level,
.sn-module-card {
  border-radius: 19px;
}

/* Gold remains visible through compact signals rather than long borders. */
.sn-card--mission,
.sn-card--warning,
.sn-simulation-feature,
.sn-course-hero,
.sn-track-tabs button.is-active,
.sn-module-card.is-current,
.sn-level:hover,
.sn-module-card:hover,
.sn-activity-card:hover,
.sn-choice:hover,
.sn-choice.is-selected {
  border-color: var(--sn-open-line-strong) !important;
}

.sn-module-card.is-current {
  background:
    radial-gradient(circle at 8% 50%, rgba(245, 196, 0, 0.075), transparent 160px),
    var(--sn-card);
}

.sn-module-card.is-current .sn-module-card__index {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.08);
  box-shadow: 0 0 0 1px rgba(245, 196, 0, 0.13);
}

.sn-track-tabs button.is-active {
  background:
    radial-gradient(circle at 50% 0%, rgba(245, 196, 0, 0.075), transparent 90px),
    var(--sn-card-muted);
}

/* Curriculum master: visuali didattiche e strumenti compilabili. */
.sn-track-tabs {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.sn-didactic-visual {
  display: grid;
  gap: 12px;
  margin: 0;
}

.sn-didactic-visual figcaption {
  color: var(--sn-text);
  font-weight: 850;
}

.sn-didactic-visual svg {
  width: 100%;
  max-height: 330px;
  color: var(--sn-text);
  font: 800 18px ui-monospace, SFMono-Regular, Consolas, monospace;
}

.sn-didactic-visual text { fill: currentColor; }
.sn-didactic-visual p { margin: 0; color: var(--sn-muted); line-height: 1.5; }
.sn-svg-ask, .sn-svg-win { fill: color-mix(in srgb, var(--sn-green) 28%, var(--sn-card)); stroke: var(--sn-green); }
.sn-svg-bid, .sn-svg-loss { fill: color-mix(in srgb, var(--sn-red) 24%, var(--sn-card)); stroke: var(--sn-red); }
.sn-svg-body { fill: color-mix(in srgb, var(--sn-green) 60%, var(--sn-card)); stroke: var(--sn-green); stroke-width: 3; }
.sn-svg-wick, .sn-svg-guide, .sn-svg-peak, .sn-svg-dd { fill: none; stroke: var(--sn-muted); stroke-width: 3; }
.sn-svg-note, .sn-svg-label, .sn-svg-labels { font-size: 15px; }
.sn-svg-up, .sn-svg-down, .sn-svg-range, .sn-svg-equity { fill: none; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.sn-svg-up, .sn-svg-equity { stroke: var(--sn-green); }
.sn-svg-down { stroke: var(--sn-red); }
.sn-svg-range { stroke: var(--sn-gold); }
.sn-svg-zone { fill: color-mix(in srgb, var(--sn-gold) 10%, transparent); stroke: color-mix(in srgb, var(--sn-gold) 55%, transparent); stroke-width: 2; }
.sn-svg-flow rect, .sn-svg-capital, .sn-svg-margin, .sn-svg-notional { fill: var(--sn-card-muted); stroke: var(--sn-line-strong); stroke-width: 2; }
.sn-svg-flow path { fill: none; stroke: var(--sn-gold); stroke-width: 3; marker-end: none; }

.sn-ticket-grid, .sn-plan-grid, .sn-final-actions { display: grid; gap: 10px; }
.sn-ticket-grid .sn-choice { display: grid; gap: 5px; min-height: 84px; text-align: left; }
.sn-ticket-grid small, .sn-order-case small { color: var(--sn-muted); }
.sn-quote-board, .sn-order-case, .sn-risk-budget { display: grid; gap: 10px; margin-bottom: 14px; padding: 18px; border: 1px solid var(--sn-line); border-radius: 18px; background: var(--sn-card-muted); }
.sn-quote-board { grid-template-columns: 1fr 1fr; }
.sn-quote-board > div { display: grid; gap: 4px; }
.sn-quote-board strong, .sn-risk-budget strong { font: 900 clamp(1.45rem, 8vw, 2.4rem) ui-monospace, SFMono-Regular, Consolas, monospace; }
.sn-quote-board small { color: var(--sn-muted); }
.sn-quote-board p { grid-column: 1 / -1; margin: 4px 0 0; color: var(--sn-gold); font: 800 .72rem ui-monospace, SFMono-Regular, Consolas, monospace; }

.sn-plan-progress { display: grid; gap: 12px; }
.sn-plan-progress > div:first-child { display: flex; align-items: baseline; gap: 10px; }
.sn-plan-progress strong { font: 900 2rem ui-monospace, SFMono-Regular, Consolas, monospace; }
.sn-plan-progress span, .sn-plan-progress p, .sn-plan-field small { color: var(--sn-muted); }
.sn-plan-field { display: grid; gap: 6px; }
.sn-plan-field > span { font-weight: 850; }
.sn-plan-field textarea { min-height: 104px; resize: vertical; }
.sn-final-sequence { display: grid; gap: 10px; padding-left: 24px; color: var(--sn-soft); line-height: 1.5; }

@media (min-width: 700px) {
  .sn-track-tabs { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .sn-plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sn-final-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.sn-level:hover,
.sn-module-card:hover,
.sn-activity-card:hover {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.035),
    0 20px 52px rgba(0, 0, 0, 0.2);
}

/* The old vertical yellow lesson rail becomes a soft self-contained note. */
.sn-lesson-note {
  border: 1px solid var(--sn-open-line) !important;
  border-left: 1px solid var(--sn-open-line) !important;
  border-radius: 16px;
  background:
    radial-gradient(circle at 0% 0%, rgba(245, 196, 0, 0.065), transparent 130px),
    var(--sn-card-muted);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

/* Hero: larger and cleaner, with an accent glow instead of outlined geometry. */
.sn-hero {
  border-color: var(--sn-open-line) !important;
  border-radius: clamp(26px, 3vw, 34px);
  background:
    radial-gradient(ellipse at 88% 4%, rgba(245, 196, 0, 0.105), transparent 23rem),
    radial-gradient(ellipse at 10% 100%, rgba(255, 255, 255, 0.025), transparent 20rem),
    linear-gradient(145deg, #0d0f11, #08090b 70%, #0b0c0e);
}

.sn-hero::before {
  inset: auto -8% -42% 52%;
  height: 78%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 196, 0, 0.065), transparent 67%);
  background-size: auto;
  mask-image: none;
  opacity: 0.8;
}

.sn-hero::after {
  right: -9%;
  top: -30%;
  width: min(360px, 44vw);
  height: min(360px, 44vw);
  border: 0;
  background: radial-gradient(circle, rgba(245, 196, 0, 0.075), transparent 69%);
  box-shadow: none;
}

.sn-hero__actions {
  border-color: var(--sn-open-line);
  background: rgba(255, 255, 255, 0.014);
}

html[data-theme="light"] .sn-hero {
  background:
    radial-gradient(ellipse at 88% 4%, rgba(217, 173, 0, 0.11), transparent 23rem),
    linear-gradient(145deg, #ffffff, #f8f8f5 72%, #ffffff);
}

/* Demo keeps functional separators neutral; gold is reserved for actions/status. */
.snd-workspace,
.snd-mentor-card,
.snd-learning,
.snd-metric {
  border-color: var(--sn-open-line) !important;
}

.snd-market {
  border-right-color: var(--sn-open-line) !important;
}

.snd-toolbar,
.snd-tabs {
  border-color: var(--sn-open-line) !important;
}

@media (min-width: 900px) {
  .sn-hero {
    padding: 44px 46px;
  }

  .sn-card {
    padding: 22px;
  }

  .sn-simulation-feature,
  .sn-course-hero {
    padding: 32px;
  }
}

@media (max-width: 699px) {
  :root {
    --sn-gutter: 14px;
  }

  .sn-section {
    margin-top: 34px;
  }

  .sn-section::before {
    width: 180px;
    opacity: 0.65;
  }

  .sn-card,
  .sn-activity-card {
    border-radius: 20px;
  }

  .sn-level,
  .sn-module-card {
    border-radius: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sn-level:hover,
  .sn-module-card:hover,
  .sn-activity-card:hover {
    transform: none;
  }
}