/* =========================================================================
   MODAL AWAL — Jurnal Belajar Investasi
   Design tokens: "financial journal / trading ledger" aesthetic.
   Paper tones + ink navy + bull green / bear red (domain-authentic accents)
   ========================================================================= */

:root {
  /* -- Warna -- */
  --paper: #f0ece3;
  --paper-card: #f8f5ee;
  --paper-tint: #e7e1d0;
  --ink: #14213d;
  --ink-soft: #4b5468;
  --ink-faint: #8790a0;
  --rule: #c9c0ac;
  --bull: #1f6f5c;
  --bull-bg: #e2ede8;
  --bear: #b23a2e;
  --bear-bg: #f3e1de;
  --gold: #c8862a;
  --gold-bg: #f1dead;
  --shadow: rgba(20, 33, 61, 0.10);

  /* -- Tipografi -- */
  --font-display: "Zilla Slab", Georgia, serif;
  --font-body: "Inter", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0 0 0.5em;
  line-height: 1.2;
}

p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

/* =========================================================================
   TICKER TAPE — signature element, scrolling investment terms
   ========================================================================= */

.ticker {
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid var(--rule);
}

.ticker__track {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  padding: 8px 0;
  animation: ticker-scroll 38s linear infinite;
}

.ticker__track:hover { animation-play-state: paused; }

.ticker__item { padding: 0 1.75rem; white-space: nowrap; }
.ticker__item--up { color: #7fd6b8; }
.ticker__item--down { color: #e3948a; }

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .ticker__track { animation: none; }
  html { scroll-behavior: auto; }
}

/* =========================================================================
   MASTHEAD / HEADER
   ========================================================================= */

.masthead {
  background: var(--paper);
  border-bottom: 3px solid var(--ink);
  padding: 2.25rem 1.5rem 1.5rem;
}

.masthead__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}

.masthead__kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4rem;
}

.masthead__title {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.masthead__subtitle {
  max-width: 46ch;
  margin: 0.4rem 0 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.masthead__nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-bottom: 0.3rem;
}

.masthead__nav a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 2px solid transparent;
  padding-bottom: 3px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.masthead__nav a:hover,
.masthead__nav a.is-active {
  border-color: var(--gold);
  color: var(--gold);
}

/* =========================================================================
   LAYOUT / SECTION
   ========================================================================= */

main { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

.section { padding: 4rem 0; border-bottom: 1px solid var(--rule); }
.section:last-of-type { border-bottom: none; }

.section--tinted {
  background: var(--paper-tint);
  margin: 0 -1.5rem;
  padding: 4rem 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.section__head { max-width: 62ch; margin-bottom: 2.25rem; }

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bull);
  margin-bottom: 0.5rem;
}

.section__title {
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  border-bottom: 3px solid var(--ink);
  display: inline-block;
  padding-bottom: 0.3rem;
}

.section__lead { font-size: 1rem; margin-top: 0.9rem; }

/* =========================================================================
   PROFIL — byline cards
   ========================================================================= */

.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.byline-card {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  box-shadow: 0 6px 18px var(--shadow);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  padding: 1.5rem;
}

.byline-card__photo img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--ink);
}

.byline-card__role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 0.3rem;
}

.byline-card__name { font-size: 1.3rem; margin-bottom: 0.15rem; }

.byline-card__class {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-bottom: 0.75rem;
}

.byline-card__desc { font-size: 0.92rem; margin-bottom: 0.9rem; }

.byline-card__subhead {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.byline-card__list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.byline-card__list li { margin-bottom: 0.25rem; }

@media (max-width: 480px) {
  .byline-card { grid-template-columns: 1fr; }
  .byline-card__photo img { max-width: 140px; }
}

/* =========================================================================
   DOSSIER / TUTORIAL TABS
   ========================================================================= */

.dossier__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1rem;
}

.dossier__tab {
  font-family: var(--font-body);
  font-size: 0.85rem;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.15s ease;
}

.dossier__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
}

.dossier__tab:hover { border-color: var(--ink); color: var(--ink); }

.dossier__tab.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.dossier__tab.is-active .dossier__num { color: var(--gold); }

.dossier__panel {
  display: none;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  padding: 2rem;
  animation: fade-in 0.25s ease;
}

.dossier__panel.is-active { display: block; }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dossier__panel h3 { font-size: 1.4rem; }

.dossier__id {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--ink-soft);
}

.check-list, .principle-list { padding-left: 1.2rem; }
.check-list li, .principle-list li { margin-bottom: 0.6rem; }
.principle-list li p { margin: 0.2rem 0 0; font-size: 0.92rem; }

/* -- Tabel instrumen -- */

.table-wrap { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 560px;
}

.data-table th, .data-table td {
  border: 1px solid var(--rule);
  padding: 0.65rem 0.75rem;
  text-align: left;
}

.data-table thead th {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.data-table tbody tr:nth-child(even) { background: var(--paper-tint); }

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

.tag--low { background: var(--bull-bg); color: var(--bull); }
.tag--mid { background: var(--gold-bg); color: #8a5a13; }
.tag--high { background: var(--gold-bg); color: #8a5a13; }
.tag--extreme { background: var(--bear-bg); color: var(--bear); }

/* -- Flip cards (glosarium) -- */

.flip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.flip-card {
  perspective: 1000px;
  height: 150px;
  cursor: pointer;
}

.flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s;
  transform-style: preserve-3d;
}

.flip-card.is-flipped .flip-card__inner { transform: rotateY(180deg); }

.flip-card__face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border: 1px solid var(--ink);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.flip-card__face--front {
  background: var(--ink);
  color: var(--paper);
}

.flip-card__face--front .flip-card__term {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.flip-card__face--front .flip-card__hint {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--gold);
  margin-top: 0.5rem;
}

.flip-card__face--back {
  background: var(--gold-bg);
  color: var(--ink);
  transform: rotateY(180deg);
  font-size: 0.85rem;
}

/* =========================================================================
   KALKULATOR / TOOL CARDS
   ========================================================================= */

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.75rem;
}

.tool-card {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  padding: 1.75rem;
  box-shadow: 0 6px 18px var(--shadow);
}

.tool-card__title { font-size: 1.2rem; }

.tool-card__subtitle {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--ink-soft);
  display: block;
}

.tool-card__desc { font-size: 0.9rem; }

.tool-form { display: flex; flex-direction: column; gap: 0.4rem; }

.tool-form label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.5rem;
}

.tool-form input[type="number"] {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
}

.tool-form input[type="number"]:focus { border-color: var(--ink); }

.tool-form fieldset {
  border: 1px solid var(--rule);
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
}

.tool-form legend {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0 0.4rem;
}

.radio-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  padding: 0.25rem 0;
  cursor: pointer;
}

.tool-result {
  margin-top: 1.25rem;
  border-top: 2px dashed var(--rule);
  padding-top: 1.1rem;
  font-size: 0.9rem;
}

.tool-result__row {
  display: flex;
  justify-content: space-between;
  padding: 0.3rem 0;
  border-bottom: 1px dotted var(--rule);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.tool-result__row strong { font-family: var(--font-body); font-weight: 400; color: var(--ink-soft); }

.tool-result__bar-wrap {
  display: flex;
  height: 22px;
  width: 100%;
  overflow: hidden;
  margin-top: 0.75rem;
  border: 1px solid var(--ink);
}

.tool-result__bar-principal { background: var(--ink-faint); }
.tool-result__bar-deposit { background: var(--gold); }
.tool-result__bar-profit { background: var(--bull); }

.tool-result__legend {
  display: flex;
  gap: 1rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.tool-result__legend span { display: inline-flex; align-items: center; gap: 0.35rem; }

.legend-dot { width: 10px; height: 10px; display: inline-block; }

.risk-profile-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.5rem;
  border: 2px solid var(--ink);
}

/* =========================================================================
   BUTTONS
   ========================================================================= */

.btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
  margin-top: 0.75rem;
}

.btn--primary:hover { background: var(--gold); border-color: var(--gold); color: var(--ink); }

.btn--secondary { background: var(--gold); border-color: var(--gold); color: var(--ink); }
.btn--secondary:hover { opacity: 0.85; }

.btn--choice { background: var(--paper-card); }
.btn--choice:hover { border-color: var(--gold); }

.btn--choice.is-selected {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.5rem; }

/* =========================================================================
   KUIS
   ========================================================================= */

.quiz-card {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  padding: 2rem;
  max-width: 720px;
  box-shadow: 0 6px 18px var(--shadow);
}

.quiz-q {
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px dashed var(--rule);
}

.quiz-q:last-of-type { border-bottom: none; }

.quiz-q__text { font-weight: 600; color: var(--ink); margin-bottom: 0.6rem; }

.quiz-q.is-correct { background: var(--bull-bg); }
.quiz-q.is-wrong { background: var(--bear-bg); }
.quiz-q.is-correct, .quiz-q.is-wrong { padding: 1rem; margin: 0 -1rem 1.25rem; }

.quiz-result {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 3px solid var(--ink);
  font-family: var(--font-mono);
}

.quiz-result__score { font-size: 1.8rem; font-family: var(--font-display); }

/* =========================================================================
   SIMULASI ANALISA CHART
   ========================================================================= */

.sim-card {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  padding: 1.75rem;
  box-shadow: 0 6px 18px var(--shadow);
}

.sim-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.sim-card__round {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

.sim-card__ticker { font-size: 1.4rem; margin: 0.15rem 0 0; }

.sim-card__score {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.4rem 0.8rem;
}

.sim-card__chart-wrap {
  border: 1px solid var(--rule);
  background: var(--paper);
  margin-bottom: 1.5rem;
}

.sim-card__chart-wrap canvas { width: 100%; height: auto; display: block; }

.sim-control-group { margin-bottom: 1.25rem; }

.sim-control-group__label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.sim-card__actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.5rem; }

.sim-feedback {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border-left: 4px solid var(--ink);
  background: var(--paper-tint);
  font-size: 0.92rem;
}

.sim-feedback.is-correct { border-color: var(--bull); background: var(--bull-bg); }
.sim-feedback.is-wrong { border-color: var(--bear); background: var(--bear-bg); }

.sim-feedback__verdict {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.sim-feedback__final {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--rule);
}

/* =========================================================================
   FOOTER
   ========================================================================= */

.site-footer {
  background: var(--ink);
  color: var(--paper-tint);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--paper);
  margin-bottom: 0.5rem;
}

.site-footer__disclaimer {
  max-width: 60ch;
  margin: 0 auto;
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */

@media (max-width: 640px) {
  .section, .section--tinted { padding: 2.75rem 0; }
  .section--tinted { padding: 2.75rem 1.25rem; }
  main { padding: 0 1.25rem; }
  .masthead { padding: 1.75rem 1.25rem 1.25rem; }
  .dossier__panel { padding: 1.25rem; }
  .quiz-card, .sim-card, .tool-card { padding: 1.25rem; }
}