/*
 * Studio Next — premium visual layer
 * Scope: /studio-next/ only.
 * This file intentionally overrides presentation without changing learning/demo logic.
 */

:root {
  --sn-bg: #050607;
  --sn-bg-soft: #090b0d;
  --sn-card: rgba(12, 14, 16, 0.96);
  --sn-card-strong: #0c0e10;
  --sn-card-muted: #0a0c0e;
  --sn-text: #f6f7f8;
  --sn-soft: #c2c7ce;
  --sn-muted: #7f8791;
  --sn-line: rgba(255, 255, 255, 0.075);
  --sn-line-strong: rgba(255, 255, 255, 0.14);
  --sn-gold: #f5c400;
  --sn-gold-ink: #111000;
  --sn-green: #63d69a;
  --sn-green-soft: rgba(99, 214, 154, 0.09);
  --sn-red: #ff7278;
  --sn-red-soft: rgba(255, 114, 120, 0.09);
  --sn-blue: #7aaeff;
  --sn-shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --sn-shadow-soft: 0 14px 38px rgba(0, 0, 0, 0.2);
  --sn-radius: 22px;
  --sn-gutter: 16px;
  --sn-panel-glow: rgba(245, 196, 0, 0.08);
}

html[data-theme="light"] {
  --sn-bg: #f3f3f1;
  --sn-bg-soft: #ecece8;
  --sn-card: rgba(255, 255, 255, 0.97);
  --sn-card-strong: #ffffff;
  --sn-card-muted: #f4f4f0;
  --sn-text: #111315;
  --sn-soft: #4d5258;
  --sn-muted: #777d84;
  --sn-line: rgba(17, 19, 21, 0.09);
  --sn-line-strong: rgba(17, 19, 21, 0.15);
  --sn-gold: #d9ad00;
  --sn-gold-ink: #171300;
  --sn-green: #168853;
  --sn-green-soft: rgba(22, 136, 83, 0.08);
  --sn-red: #ca3f46;
  --sn-red-soft: rgba(202, 63, 70, 0.08);
  --sn-blue: #386fae;
  --sn-shadow: 0 24px 60px rgba(24, 26, 28, 0.1);
  --sn-shadow-soft: 0 14px 34px rgba(24, 26, 28, 0.07);
  --sn-panel-glow: rgba(217, 173, 0, 0.08);
}

html {
  background: var(--sn-bg);
}

body {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% -16%, rgba(245, 196, 0, 0.08), transparent 34rem),
    radial-gradient(circle at 100% 22%, rgba(255, 255, 255, 0.025), transparent 28rem),
    var(--sn-bg);
}

body::before {
  content: "";
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  background-image:
    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: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.88), transparent 78%);
}

html[data-theme="light"] body::before {
  background-image:
    linear-gradient(rgba(17, 19, 21, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 19, 21, 0.025) 1px, transparent 1px);
}

body::after {
  content: "";
  position: fixed;
  z-index: -1;
  top: 86px;
  right: -180px;
  width: 440px;
  height: 440px;
  border: 1px solid rgba(245, 196, 0, 0.06);
  border-radius: 50%;
  box-shadow:
    0 0 0 56px rgba(245, 196, 0, 0.018),
    0 0 0 112px rgba(245, 196, 0, 0.012);
  pointer-events: none;
}

button,
a,
input,
select {
  touch-action: manipulation;
}

.sn-shell {
  width: min(1240px, 100%);
  padding: 0 var(--sn-gutter) 110px;
}

/* Header */
.sn-topbar {
  min-height: 72px;
  margin: 0 calc(var(--sn-gutter) * -1);
  padding: max(10px, env(safe-area-inset-top)) var(--sn-gutter) 10px;
  border-bottom: 1px solid var(--sn-line);
  background: color-mix(in srgb, var(--sn-bg) 94%, transparent);
  backdrop-filter: blur(16px) saturate(110%);
}

.sn-brand {
  gap: 11px;
  min-width: 0;
  letter-spacing: -0.025em;
}

.sn-brand__mark,
.sn-boot__mark {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(245, 196, 0, 0.25);
  border-radius: 13px;
  background-color: #070809;
  background-image: url("/landing/logo.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 76%;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 10px 24px rgba(0, 0, 0, 0.22),
    0 0 24px rgba(245, 196, 0, 0.08);
  color: transparent;
  font-size: 0;
}

html[data-theme="light"] .sn-brand__mark,
html[data-theme="light"] .sn-boot__mark {
  background-color: #111315;
}

.sn-brand__text {
  min-width: 0;
  color: var(--sn-text);
  font-size: 0.92rem;
  font-weight: 880;
  white-space: nowrap;
}

.sn-brand small {
  margin-top: 2px;
  color: var(--sn-muted);
  font-size: 0.58rem;
  font-weight: 760;
  letter-spacing: 0.12em;
}

.sn-desktop-nav {
  padding: 4px;
  border: 1px solid var(--sn-line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--sn-card-muted) 86%, transparent);
}

.sn-desktop-nav button {
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 11px;
  font-size: 0.8rem;
  font-weight: 780;
}

.sn-desktop-nav button:hover {
  color: var(--sn-text);
  background: rgba(255, 255, 255, 0.035);
}

.sn-desktop-nav button.is-active {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.09);
  box-shadow: inset 0 0 0 1px rgba(245, 196, 0, 0.1);
}

.sn-topbar__stats {
  gap: 6px;
}

.sn-stat-pill {
  min-width: 52px;
  padding: 7px 9px;
  border-color: var(--sn-line);
  border-radius: 12px;
  color: var(--sn-muted);
  background: var(--sn-card-muted);
  box-shadow: none;
  font-size: 0.65rem;
}

.sn-stat-pill strong {
  color: var(--sn-text);
}

/* Mobile navigation */
.sn-bottom-nav {
  right: 10px;
  left: 10px;
  bottom: max(10px, env(safe-area-inset-bottom));
  gap: 3px;
  padding: 7px;
  border-color: rgba(255, 255, 255, 0.11);
  border-radius: 22px;
  background: rgba(8, 9, 10, 0.96);
  box-shadow: 0 20px 58px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(18px);
}

html[data-theme="light"] .sn-bottom-nav {
  background: rgba(255, 255, 255, 0.97);
  border-color: rgba(17, 19, 21, 0.11);
}

.sn-bottom-nav button {
  min-height: 50px;
  border-radius: 15px;
  color: var(--sn-muted);
  font-size: 0.64rem;
  font-weight: 760;
}

.sn-bottom-nav button span {
  margin-bottom: 3px;
  color: inherit;
  font-size: 0.98rem;
}

.sn-bottom-nav button.is-active {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.1);
  box-shadow: inset 0 0 0 1px rgba(245, 196, 0, 0.12);
}

/* Page rhythm */
.sn-main {
  padding-top: 20px;
}

.sn-view {
  min-width: 0;
}

.sn-section {
  margin-top: 38px;
}

.sn-section-head,
.sn-page-head {
  gap: 18px;
  margin-bottom: 16px;
}

.sn-section-head > div,
.sn-page-head > div {
  min-width: 0;
}

.sn-section-head h2 {
  font-size: clamp(1.35rem, 3.2vw, 1.9rem);
  line-height: 1.08;
}

.sn-section-head p,
.sn-page-head p {
  max-width: 660px;
  margin-top: 6px;
  color: var(--sn-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.sn-page-head {
  margin-top: 14px;
}

.sn-page-head h1 {
  max-width: 760px;
  font-size: clamp(2rem, 6.5vw, 3.8rem);
  line-height: 1;
}

.sn-page-head h1 span,
.sn-hero h1 span {
  color: var(--sn-gold);
}

.sn-eyebrow {
  margin-bottom: 10px;
  color: var(--sn-gold);
  font-size: 0.67rem;
  font-weight: 820;
  letter-spacing: 0.15em;
}

/* Hero */
.sn-hero {
  isolation: isolate;
  gap: 22px;
  padding: 28px 22px;
  border-color: var(--sn-line-strong);
  border-radius: 28px;
  background:
    radial-gradient(circle at 86% 12%, rgba(245, 196, 0, 0.09), transparent 24rem),
    linear-gradient(145deg, #0d0f11, #090a0c 66%, #0b0c0e);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.035),
    0 26px 72px rgba(0, 0, 0, 0.32);
}

html[data-theme="light"] .sn-hero {
  background:
    radial-gradient(circle at 86% 12%, rgba(217, 173, 0, 0.1), transparent 24rem),
    linear-gradient(145deg, #ffffff, #f8f8f5 70%, #ffffff);
}

.sn-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: auto 18px 18px 48%;
  height: 58%;
  border-radius: 22px;
  opacity: 0.55;
  background:
    linear-gradient(rgba(245, 196, 0, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 196, 0, 0.055) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(135deg, transparent 0%, #000 58%);
}

.sn-hero::after {
  width: 280px;
  height: 280px;
  right: -118px;
  top: -146px;
  border: 1px solid rgba(245, 196, 0, 0.14);
  background: transparent;
  box-shadow:
    0 0 0 44px rgba(245, 196, 0, 0.018),
    0 0 0 88px rgba(245, 196, 0, 0.012);
  filter: none;
}

.sn-hero h1 {
  max-width: 780px;
  font-size: clamp(2.1rem, 6.2vw, 4.1rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.sn-hero__lead {
  max-width: 660px;
  margin-top: 16px;
  color: var(--sn-soft);
  font-size: clamp(0.93rem, 1.5vw, 1.04rem);
  line-height: 1.65;
}

.sn-hero__actions {
  gap: 9px;
  padding: 14px;
  border: 1px solid var(--sn-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.018);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

/* Buttons and controls */
.sn-button {
  min-height: 48px;
  padding: 11px 17px;
  border-radius: 13px;
  font-size: 0.84rem;
  font-weight: 820;
  letter-spacing: -0.01em;
}

.sn-button--primary {
  color: #111000;
  background: linear-gradient(180deg, #ffdb29, #f5c400);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    0 12px 26px rgba(245, 196, 0, 0.13);
}

.sn-button--primary:hover {
  background: linear-gradient(180deg, #ffe04a, #f8ca0d);
}

.sn-button--secondary {
  border-color: var(--sn-line-strong);
  color: var(--sn-text);
  background: rgba(255, 255, 255, 0.025);
}

.sn-button--secondary:hover {
  border-color: rgba(245, 196, 0, 0.24);
  background: rgba(245, 196, 0, 0.055);
}

.sn-button--quiet {
  color: var(--sn-muted);
}

.sn-mode-switch {
  padding: 4px;
  border-radius: 13px;
  background: var(--sn-card-muted);
}

.sn-mode-switch button {
  min-height: 36px;
  border-radius: 9px;
  font-size: 0.75rem;
}

.sn-mode-switch button.is-active {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.075);
  box-shadow: inset 0 0 0 1px rgba(245, 196, 0, 0.1);
}

/* Cards */
.sn-grid {
  gap: 13px;
}

.sn-card {
  padding: 19px;
  border-color: var(--sn-line);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent 40%),
    var(--sn-card);
  box-shadow: var(--sn-shadow-soft);
}

.sn-card--mission {
  border-color: rgba(245, 196, 0, 0.18);
  background:
    radial-gradient(circle at 92% 0%, rgba(245, 196, 0, 0.085), transparent 190px),
    var(--sn-card);
}

.sn-card--good {
  border-color: rgba(99, 214, 154, 0.18);
  background:
    radial-gradient(circle at 92% 0%, rgba(99, 214, 154, 0.07), transparent 180px),
    var(--sn-card);
}

.sn-card--warning {
  border-color: rgba(245, 196, 0, 0.2);
}

.sn-card--error {
  border-color: rgba(255, 114, 120, 0.22);
}

.sn-card h3 {
  margin-bottom: 8px;
  font-size: 1rem;
  line-height: 1.3;
}

.sn-chip {
  min-height: 25px;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--sn-muted);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.64rem;
  font-weight: 760;
  letter-spacing: 0.035em;
}

.sn-chip--gold {
  border-color: rgba(245, 196, 0, 0.2);
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.055);
}

.sn-chip--green {
  border-color: rgba(99, 214, 154, 0.2);
  color: var(--sn-green);
  background: rgba(99, 214, 154, 0.05);
}

.sn-mission-row {
  align-items: flex-start;
}

.sn-mission-icon {
  width: 44px;
  height: 44px;
  flex-basis: 44px;
  border: 1px solid rgba(245, 196, 0, 0.18);
  border-radius: 14px;
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.07);
  font-size: 1.08rem;
}

/* Home demo spotlight */
.sn-simulation-feature {
  position: relative;
  overflow: hidden;
  gap: 20px;
  padding: 24px;
  border-color: rgba(245, 196, 0, 0.16);
  border-radius: 24px;
  background:
    radial-gradient(circle at 92% 10%, rgba(245, 196, 0, 0.08), transparent 260px),
    linear-gradient(145deg, #0d0f11, #090a0c);
  box-shadow: var(--sn-shadow-soft);
}

html[data-theme="light"] .sn-simulation-feature {
  background:
    radial-gradient(circle at 92% 10%, rgba(217, 173, 0, 0.09), transparent 260px),
    linear-gradient(145deg, #ffffff, #f8f8f5);
}

.sn-simulation-feature::after {
  content: "";
  position: absolute;
  right: -76px;
  bottom: -96px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(245, 196, 0, 0.1);
  border-radius: 50%;
}

.sn-simulation-feature h2 {
  margin: 12px 0 8px;
  font-size: clamp(1.65rem, 4vw, 2.35rem);
}

.sn-simulation-feature p {
  margin-bottom: 18px;
  color: var(--sn-soft);
  line-height: 1.6;
}

.snd-home-demo__stats {
  position: relative;
  z-index: 1;
  gap: 8px;
}

.snd-home-demo__stats div {
  padding: 12px 13px;
  border-color: var(--sn-line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.024);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.snd-home-demo__stats span {
  color: var(--sn-muted);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.snd-home-demo__stats strong {
  margin-top: 6px;
  color: var(--sn-text);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

/* Skills */
.sn-skill-score {
  min-height: 118px;
  align-content: center;
}

.sn-skill-score > span {
  color: var(--sn-muted);
  font-size: 0.75rem;
}

.sn-skill-score strong {
  color: var(--sn-text);
  font-size: 1.28rem;
}

.sn-progress {
  height: 5px;
  background: rgba(255, 255, 255, 0.07);
}

html[data-theme="light"] .sn-progress {
  background: rgba(17, 19, 21, 0.08);
}

.sn-progress span {
  background: linear-gradient(90deg, var(--sn-gold), #ffe15c);
  box-shadow: 0 0 12px rgba(245, 196, 0, 0.18);
}

/* Progress map */
.sn-level-map {
  gap: 9px;
}

.sn-level {
  min-height: 84px;
  gap: 13px;
  padding: 14px;
  border-color: var(--sn-line);
  border-radius: 18px;
  background: var(--sn-card);
  box-shadow: none;
}

.sn-level:hover {
  border-color: rgba(245, 196, 0, 0.22);
  transform: translateY(-1px);
}

.sn-level__index {
  width: 40px;
  height: 40px;
  border: 1px solid var(--sn-line);
  border-radius: 12px;
  color: var(--sn-gold);
  background: var(--sn-card-muted);
  font-size: 0.72rem;
}

.sn-level__body strong {
  font-size: 0.9rem;
}

.sn-level__body small {
  color: var(--sn-muted);
  font-size: 0.7rem;
}

.sn-mastery {
  min-width: 72px;
  color: var(--sn-muted);
  font-size: 0.62rem;
}

/* Academy */
.sn-track-tabs {
  gap: 8px;
  margin: 10px 0 20px;
  padding: 5px;
  border: 1px solid var(--sn-line);
  border-radius: 20px;
  background: var(--sn-card-muted);
}

.sn-track-tabs button {
  min-height: 72px;
  border-color: transparent;
  border-radius: 15px;
  background: transparent;
  box-shadow: none;
}

.sn-track-tabs button > span {
  color: var(--sn-muted);
}

.sn-track-tabs button.is-active {
  border-color: rgba(245, 196, 0, 0.13);
  color: var(--sn-text);
  background: rgba(245, 196, 0, 0.07);
  box-shadow: inset 0 0 0 1px rgba(245, 196, 0, 0.035);
}

.sn-track-tabs button.is-active > span {
  color: var(--sn-gold);
}

.sn-course-hero {
  padding: 24px;
  border-color: rgba(245, 196, 0, 0.13);
  border-radius: 22px;
  background:
    radial-gradient(circle at 94% 8%, rgba(245, 196, 0, 0.07), transparent 220px),
    var(--sn-card);
  box-shadow: var(--sn-shadow-soft);
}

.sn-course-hero h2 {
  font-size: clamp(1.45rem, 4vw, 2rem);
}

.sn-course-progress strong {
  color: var(--sn-gold);
  font-size: 2.15rem;
}

.sn-module-list {
  gap: 8px;
}

.sn-module-card {
  min-height: 78px;
  gap: 13px;
  padding: 13px 14px;
  border-radius: 17px;
  background: var(--sn-card);
  box-shadow: none;
}

.sn-module-card:hover {
  border-color: rgba(245, 196, 0, 0.2);
  transform: translateX(2px);
}

.sn-module-card.is-current {
  border-color: rgba(245, 196, 0, 0.42);
  background:
    linear-gradient(90deg, rgba(245, 196, 0, 0.06), transparent 44%),
    var(--sn-card);
}

.sn-module-card.is-done {
  background:
    linear-gradient(90deg, rgba(99, 214, 154, 0.055), transparent 44%),
    var(--sn-card);
}

.sn-module-card__index {
  width: 40px;
  height: 40px;
  border: 1px solid var(--sn-line);
  border-radius: 12px;
  background: var(--sn-card-muted);
}

.sn-module-card__copy strong {
  font-size: 0.9rem;
}

.sn-module-card__copy small {
  color: var(--sn-muted);
  font-size: 0.73rem;
}

.sn-module-card__meta {
  font-size: 0.6rem;
  letter-spacing: 0.07em;
}

.sn-module-card__xp {
  font-size: 0.62rem;
}

/* Lesson */
.sn-lesson-topline {
  margin-top: 12px;
}

.sn-back {
  color: var(--sn-gold);
}

.sn-stepper {
  margin-bottom: 16px;
}

.sn-step-dot {
  height: 5px;
  background: rgba(255, 255, 255, 0.09);
}

.sn-step-dot.is-active {
  background: var(--sn-gold);
}

.sn-step-dot.is-done {
  background: rgba(245, 196, 0, 0.5);
}

.sn-course-lesson {
  gap: 12px;
}

.sn-course-lesson__copy,
.sn-course-lesson__stage {
  min-height: 310px;
  border-radius: 22px;
}

.sn-course-lesson__copy {
  padding: 25px;
}

.sn-course-lesson__copy h1 {
  font-size: clamp(1.75rem, 5vw, 2.8rem);
  line-height: 1.02;
}

.sn-course-lead {
  color: var(--sn-soft);
  line-height: 1.65;
}

.sn-course-lesson__stage {
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(245, 196, 0, 0.018), transparent 34%),
    var(--sn-card);
}

.sn-lesson-note {
  border-left-color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.045);
}

.sn-lesson-controls {
  gap: 8px;
  padding: 7px;
  border-color: var(--sn-line-strong);
  background: rgba(10, 11, 12, 0.95);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.24);
}

html[data-theme="light"] .sn-lesson-controls {
  background: rgba(255, 255, 255, 0.96);
}

.sn-concept-visual > span,
.sn-practice-bridge > span {
  border: 1px solid rgba(245, 196, 0, 0.22);
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.07);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.16);
}

.sn-concept-orbit {
  border-color: rgba(245, 196, 0, 0.13);
}

.sn-concept-orbit::before {
  border-color: rgba(255, 255, 255, 0.09);
}

.sn-concept-orbit i {
  background: var(--sn-gold);
}

.sn-example-board,
.sn-key-list li {
  border-color: var(--sn-line);
  background: var(--sn-card-muted);
}

.sn-example-board__top {
  border-bottom-color: var(--sn-line);
}

.sn-example-row {
  border-bottom-color: var(--sn-line);
}

.sn-example-row > span,
.sn-key-list li > span {
  border: 1px solid var(--sn-line);
  color: var(--sn-gold);
  background: var(--sn-card-strong);
}

.sn-choice {
  border-radius: 14px;
  border-color: var(--sn-line-strong);
  background: var(--sn-card-muted);
  font-size: 0.8rem;
}

.sn-choice:hover,
.sn-choice.is-selected {
  border-color: rgba(245, 196, 0, 0.35);
  background: rgba(245, 196, 0, 0.05);
}

/* Play cards */
.sn-activity-grid {
  gap: 12px;
}

.sn-activity-card {
  min-height: 226px;
  padding: 19px;
  border-radius: 20px;
  background: var(--sn-card);
  box-shadow: var(--sn-shadow-soft);
}

.sn-activity-card:hover {
  border-color: rgba(245, 196, 0, 0.22);
  transform: translateY(-2px);
}

.sn-activity-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  border: 1px solid rgba(245, 196, 0, 0.17);
  border-radius: 14px;
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.065);
  font-size: 1.08rem;
}

.sn-activity-card > strong {
  font-size: 1.1rem;
}

.sn-activity-card > small {
  line-height: 1.55;
}

/* Charts, simulations, risk */
.sn-chart-shell {
  border-color: var(--sn-line-strong);
  border-radius: 18px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    var(--sn-card-muted);
  background-size: 26px 26px, 26px 26px, auto;
}

.sn-chart-grid {
  stroke: rgba(255, 255, 255, 0.06);
}

.sn-chart-line {
  stroke: var(--sn-gold);
}

.sn-chart-mask {
  fill: var(--sn-card-muted);
}

.sn-price-ticker {
  border-color: var(--sn-line-strong);
  background: var(--sn-card-muted);
}

.sn-price-ticker strong {
  color: var(--sn-gold);
}

.sn-lot-result,
.sn-feedback,
.sn-kpi,
.sn-explainer,
.sn-coach-list li,
.sn-inline-toggle {
  border-color: var(--sn-line);
  background: var(--sn-card-muted);
}

.sn-form {
  gap: 12px;
}

.sn-field input,
.sn-field select {
  border-color: var(--sn-line-strong);
  border-radius: 12px;
  background: #080a0b;
}

html[data-theme="light"] .sn-field input,
html[data-theme="light"] .sn-field select {
  background: #ffffff;
}

.sn-field input:focus,
.sn-field select:focus {
  border-color: rgba(245, 196, 0, 0.5);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(245, 196, 0, 0.08);
}

.sn-score-ring {
  background: conic-gradient(var(--sn-gold) calc(var(--score) * 1%), var(--sn-line) 0);
}

/* Profile */
.sn-profile-level {
  width: 78px;
  height: 78px;
  border-color: rgba(245, 196, 0, 0.28);
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.04);
}

.sn-profile-kpi strong {
  color: var(--sn-text);
}

.sn-badge-grid {
  gap: 9px;
}

.sn-badge {
  min-height: 132px;
  border-radius: 17px;
  background: var(--sn-card);
}

.sn-badge.is-unlocked {
  border-color: rgba(245, 196, 0, 0.24);
  background:
    radial-gradient(circle at 50% 0%, rgba(245, 196, 0, 0.065), transparent 90px),
    var(--sn-card);
}

.sn-badge > span {
  border: 1px solid var(--sn-line);
  color: var(--sn-gold);
  background: var(--sn-card-muted);
}

/* Footer / overlays */
.sn-disclaimer {
  margin-top: 44px;
  padding: 16px 18px;
  border-color: var(--sn-line);
  border-radius: 16px;
  color: var(--sn-muted);
  background: rgba(255, 255, 255, 0.016);
  font-size: 0.72rem;
}

.sn-dialog {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(8px);
}

.sn-dialog__card {
  border-color: var(--sn-line-strong);
  background: #0b0d0f;
}

html[data-theme="light"] .sn-dialog__card {
  background: #ffffff;
}

.sn-toast {
  border-color: rgba(245, 196, 0, 0.2);
  background: #0c0e10;
}

html[data-theme="light"] .sn-toast {
  background: #ffffff;
}

/* Demo — bring the simulator into the same visual family */
.snd-onboarding {
  gap: clamp(24px, 5vw, 64px);
  min-height: calc(100vh - 190px);
}

.snd-onboarding__copy h1 {
  max-width: 760px;
  margin: 13px 0 18px;
  font-size: clamp(2.7rem, 6.2vw, 5.8rem);
  line-height: 0.94;
}

.snd-onboarding__copy h1 span {
  color: var(--sn-gold);
}

.snd-onboarding__copy > p {
  color: var(--sn-soft);
}

.snd-mentor-card {
  min-height: 480px;
  border-color: rgba(245, 196, 0, 0.16);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 18%, rgba(245, 196, 0, 0.12), transparent 38%),
    #0c0e10;
  box-shadow: var(--sn-shadow);
}

.snd-mentor-card::before {
  color: rgba(245, 196, 0, 0.035);
}

.snd-mentor-card div {
  background: linear-gradient(transparent, rgba(12, 14, 16, 0.98) 34%);
}

.snd-how {
  gap: 8px;
}

.snd-how div {
  border-color: var(--sn-line);
  border-radius: 14px;
  background: var(--sn-card);
}

.snd-how b {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.07);
}

.snd-header {
  margin-bottom: 14px;
}

.snd-virtual-badge {
  border-color: rgba(245, 196, 0, 0.18);
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.055);
}

.snd-icon-button,
.snd-exit {
  border-color: var(--sn-line-strong);
  border-radius: 11px;
  background: var(--sn-card-muted);
}

.snd-metrics {
  gap: 7px;
}

.snd-metric {
  border-color: var(--sn-line);
  border-radius: 13px;
  background: var(--sn-card);
  box-shadow: none;
}

.snd-workspace {
  border-color: var(--sn-line-strong);
  border-radius: 22px;
  background: var(--sn-card);
  box-shadow: var(--sn-shadow-soft);
}

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

.snd-toolbar {
  border-bottom-color: var(--sn-line);
}

.snd-symbol span {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.065);
}

.snd-segment {
  border-color: var(--sn-line);
  background: #070809;
}

html[data-theme="light"] .snd-segment {
  background: #f2f2ee;
}

.snd-segment button.is-active {
  color: var(--sn-gold);
  background: var(--sn-card-strong);
}

.snd-chart-wrap {
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    #080a0b;
  background-size: 28px 28px, 28px 28px, auto;
}

html[data-theme="light"] .snd-chart-wrap {
  background:
    linear-gradient(rgba(17, 19, 21, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 19, 21, 0.025) 1px, transparent 1px),
    #fafaf7;
  background-size: 28px 28px, 28px 28px, auto;
}

.snd-chart-status {
  border-color: var(--sn-line);
  border-radius: 9px;
  background: rgba(10, 12, 14, 0.88);
}

.snd-console {
  background: #0c0e10;
}

html[data-theme="light"] .snd-console {
  background: #ffffff;
}

.snd-mode {
  border-color: rgba(245, 196, 0, 0.2);
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.055);
}

.snd-field > input,
.snd-step-input {
  border-color: var(--sn-line-strong);
  background: #080a0b;
}

html[data-theme="light"] .snd-field > input,
html[data-theme="light"] .snd-step-input {
  background: #ffffff;
}

.snd-step-input button {
  background: var(--sn-card);
}

.snd-risk-preview {
  border-color: var(--sn-line);
  background: var(--sn-card-muted);
}

.snd-trade-buttons button {
  min-height: 52px;
  border-radius: 11px;
  box-shadow: none;
}

.snd-learning {
  border-color: var(--sn-line);
  border-radius: 18px;
  background: var(--sn-card);
}

.snd-tabs {
  border-bottom-color: var(--sn-line);
}

.snd-tabs button.is-active {
  color: var(--sn-gold);
  background: rgba(245, 196, 0, 0.06);
}

.snd-history button,
.snd-progress div,
.snd-coach__choices button {
  border-color: var(--sn-line);
  background: var(--sn-card-muted);
}

.snd-modal-backdrop {
  background: rgba(0, 0, 0, 0.74);
}

.snd-modal {
  border-color: var(--sn-line-strong);
  background: #0c0e10;
}

html[data-theme="light"] .snd-modal {
  background: #ffffff;
}

/* Desktop polish */
@media (min-width: 700px) {
  :root {
    --sn-gutter: 24px;
  }

  .sn-hero {
    grid-template-columns: minmax(0, 1fr) minmax(230px, 0.36fr);
    padding: 38px;
  }

  .sn-hero__actions {
    align-self: stretch;
    justify-content: center;
  }

  .sn-simulation-feature {
    padding: 28px;
  }

  .sn-course-hero {
    padding: 28px;
  }

  .sn-card {
    padding: 20px;
  }
}

@media (min-width: 960px) {
  .sn-shell {
    padding-bottom: 52px;
  }

  .sn-topbar {
    top: 10px;
    min-height: 68px;
    margin: 10px 0 0;
    padding: 8px 10px;
    border: 1px solid var(--sn-line);
    border-radius: 22px;
    background: rgba(8, 9, 10, 0.9);
    box-shadow: 0 14px 44px rgba(0, 0, 0, 0.2);
  }

  html[data-theme="light"] .sn-topbar {
    background: rgba(255, 255, 255, 0.93);
  }

  .sn-main {
    padding-top: 28px;
  }

  .sn-section {
    margin-top: 44px;
  }

  .sn-level-map {
    gap: 10px;
  }

  .sn-risk-layout > .sn-card:first-child {
    top: 96px;
  }
}

/* Mobile polish */
@media (max-width: 699px) {
  body::after {
    display: none;
  }

  .sn-topbar {
    min-height: 66px;
  }

  .sn-brand__mark {
    width: 34px;
    height: 34px;
    border-radius: 11px;
  }

  .sn-brand__text {
    font-size: 0.82rem;
  }

  .sn-brand small {
    font-size: 0.52rem;
  }

  .sn-stat-pill {
    min-width: 45px;
    padding-inline: 7px;
    font-size: 0.59rem;
  }

  .sn-main {
    padding-top: 14px;
  }

  .sn-hero {
    padding: 23px 18px;
    border-radius: 23px;
  }

  .sn-hero::before {
    inset: auto 12px 12px 20%;
    height: 38%;
    opacity: 0.32;
  }

  .sn-hero h1 {
    font-size: clamp(2rem, 10.4vw, 2.8rem);
    line-height: 0.99;
  }

  .sn-hero__lead {
    font-size: 0.91rem;
  }

  .sn-hero__actions {
    padding: 10px;
    border-radius: 16px;
  }

  .sn-hero__actions .sn-button {
    width: 100%;
  }

  .sn-mode-switch {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .sn-section {
    margin-top: 30px;
  }

  .sn-section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .sn-section-head > .sn-chip {
    align-self: flex-start;
  }

  .sn-card {
    padding: 17px;
    border-radius: 18px;
  }

  .sn-simulation-feature {
    padding: 20px 17px;
    border-radius: 21px;
  }

  .snd-home-demo .sn-simulation-feature {
    grid-template-columns: 1fr;
  }

  .snd-home-demo__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sn-level {
    grid-template-columns: 38px minmax(0, 1fr) auto;
    padding: 12px;
  }

  .sn-mastery {
    min-width: 58px;
  }

  .sn-track-tabs {
    gap: 4px;
    padding: 4px;
    border-radius: 17px;
  }

  .sn-track-tabs button {
    min-height: 66px;
    padding: 7px 5px;
    border-radius: 12px;
    font-size: 0.74rem;
  }

  .sn-course-hero {
    padding: 20px 17px;
  }

  .sn-module-card {
    grid-template-columns: 38px minmax(0, 1fr) auto;
    gap: 10px;
    padding: 12px;
  }

  .sn-course-lesson__copy,
  .sn-course-lesson__stage {
    min-height: 0;
  }

  .sn-course-lesson__copy {
    padding: 21px 18px;
  }

  .sn-course-lesson__stage {
    padding: 18px;
  }

  .sn-lesson-controls {
    bottom: 78px;
  }

  .sn-activity-card {
    min-height: 205px;
  }

  .sn-disclaimer {
    margin-top: 34px;
    font-size: 0.68rem;
  }

  .snd-onboarding {
    min-height: auto;
    padding: 24px 0 34px;
  }

  .snd-onboarding__copy h1 {
    font-size: clamp(2.45rem, 12.4vw, 3.4rem);
  }

  .snd-mentor-card {
    min-height: 430px;
    border-radius: 23px;
  }

  .snd-metrics {
    gap: 6px;
  }
}

@media (max-width: 430px) {
  .sn-topbar__stats .sn-stat-pill:nth-child(2) {
    display: none;
  }

  .sn-page-head h1 {
    font-size: clamp(1.9rem, 9.4vw, 2.55rem);
  }

  .sn-level {
    grid-template-columns: 34px minmax(0, 1fr) auto;
  }

  .sn-level__index {
    width: 34px;
    height: 34px;
  }

  .sn-module-card {
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .sn-module-card__xp {
    display: none;
  }

  .sn-badge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 360px) {
  .sn-topbar__stats .sn-stat-pill:last-child {
    display: none;
  }

  .sn-brand__text {
    font-size: 0.77rem;
  }

  .sn-brand small {
    letter-spacing: 0.08em;
  }

  .sn-bottom-nav button {
    font-size: 0.58rem;
  }

  .sn-bottom-nav button span {
    font-size: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after {
    display: none;
  }
}