/* ===== CSS Variables ===== */
:root {
  --bg: #000000;
  --surface: #111111;
  --text: #ffffff;
  --muted: #a1a1aa;
  --border: #222222;
  --accent: #0f766e;
  --accent-light: #14b8a6;
  --accent-glow: rgba(15, 118, 110, 0.3);
  --nav-bg: rgba(0, 0, 0, 0.96);
  --nav-border: #111111;
  --radius: 10px;
  --max-width: 1080px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===== Focus Styles ===== */
:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 12px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  transition: background 0.3s ease;
}

.nav.scrolled {
  background: rgba(0, 0, 0, 0.98);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-brand img {
  height: 24px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.nav-links a {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}
.nav-links a.active {
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  margin-left: 0.5rem;
}
.nav-links a.nav-cta:hover {
  background: var(--accent-light);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  background: var(--bg);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: start;
}

.footer-col h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.footer-col p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}

.footer-quote {
  font-style: italic;
  color: var(--accent-light) !important;
  margin-top: 0.5rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--text);
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(15, 118, 110, 0.08);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ===== Page Layout ===== */
.page {
  padding-top: 88px;
  padding-bottom: 4rem;
  min-height: 100vh;
}

.section {
  padding: 5rem 2rem;
  border-top: 1px solid var(--border);
}

.section:first-of-type {
  border-top: none;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 700px;
  margin-bottom: 2.5rem;
}

/* ===== Hero ===== */
.hero {
  padding: 7rem 2rem 5rem;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 1rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
  margin-bottom: 1.2rem;
}

.hero-title .accent {
  color: var(--accent-light);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text);
  line-height: 1.5;
  max-width: 650px;
  margin-bottom: 1rem;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 650px;
  margin-bottom: 2rem;
}

/* ===== Proof Strip ===== */
.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proof-item {
  font-size: 0.9rem;
  color: var(--muted);
  padding-right: 1.5rem;
  border-right: 1px solid var(--border);
  line-height: 1.5;
}
.proof-item:last-child {
  border-right: none;
}

/* ===== Buttons ===== */
.btn-group {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  min-height: 48px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 8px 20px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(15, 118, 110, 0.08);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: transparent;
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border);
}

/* ===== Cards ===== */
.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  text-align: left;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.card p {
  font-size: 0.93rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 0.5rem;
}

.card .card-link {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--accent-light);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
  margin-top: 0.25rem;
}
.card .card-link:hover {
  border-bottom-color: var(--accent-light);
}

.card-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

/* ===== Metrics ===== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}

.metric-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1rem;
  text-align: left;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.metric-card:hover {
  border-color: rgba(20, 184, 166, 0.5);
  transform: translateY(-2px);
}

.metric-value {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.45;
}

/* ===== Offer Cards ===== */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.offer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: left;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.offer-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.offer-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.offer-card .offer-sub {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}
.offer-card p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}
.offer-card ul {
  padding-left: 1rem;
  margin-bottom: 1rem;
}
.offer-card ul li {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
  position: relative;
  padding-left: 0.5rem;
  line-height: 1.5;
}
.offer-card ul li::before {
  content: "—";
  position: absolute;
  left: -0.8rem;
  color: var(--accent);
}

/* ===== CTA Band ===== */
.cta-band {
  text-align: center;
  padding: 2rem 0 0;
}
.cta-band .btn-group {
  justify-content: center;
}

/* ===== Timeline ===== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.timeline-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.timeline-year {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-light);
  padding-top: 0.15rem;
}

.timeline-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.timeline-content p {
  font-size: 0.93rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ===== Principles Grid ===== */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}

.principle-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
}

.principle-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.principle-card p {
  font-size: 0.93rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ===== Work With Me Path Cards ===== */
.path-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.path-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.path-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.path-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 0.6rem;
}
.path-card .path-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 0.15rem;
}

/* ===== Writing Cards ===== */
.writing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}

.writing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.writing-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.writing-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.writing-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 0.6rem;
}
.writing-card .card-link {
  display: inline-block;
  font-size: 0.88rem;
  color: var(--accent-light);
  font-weight: 600;
}

/* ===== Writing Pillars ===== */
.writing-pillar {
  margin-bottom: 3rem;
}
.writing-pillar:last-child {
  margin-bottom: 0;
}

/* ===== Discoverability & Recruiter ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
  margin-bottom: 1.1rem;
}

.info-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem;
  text-align: left;
}
.info-block h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.info-block ul {
  padding: 0;
}
.info-block ul li {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0.5rem;
  padding-left: 1rem;
  position: relative;
}
.info-block ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.info-block-full {
  grid-column: 1 / -1;
}

/* ===== Recruiter Tags ===== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  background: rgba(15, 118, 110, 0.12);
  border: 1px solid rgba(15, 118, 110, 0.25);
  border-radius: 100px;
  color: var(--accent-light);
}

/* ===== Intro Video ===== */
.intro-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.intro-video {
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.intro-video iframe {
  width: 100%;
  height: 100%;
  border: none;
}

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

.intro-text .intro-name {
  font-size: 1.15rem;
  font-weight: 700;
}

.intro-text ul {
  padding: 0;
}

.intro-text ul li {
  font-size: 0.93rem;
  color: var(--muted);
  line-height: 1.75;
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.35rem;
}
.intro-text ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-light);
}

.intro-quote {
  font-style: italic;
  color: var(--accent-light);
  font-size: 0.95rem;
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
}

.intro-open-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

/* ===== Systems Page ===== */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}

.system-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: left;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.system-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.system-card h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.system-card p {
  font-size: 0.93rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 0.6rem;
}
.system-card .sys-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.system-card .sys-stack {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ===== Flagship Card (for ISNAD) ===== */
.flagship-card {
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
}
.flagship-card::before {
  content: "FLAGSHIP";
  position: absolute;
  top: -10px;
  left: 1.5rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

/* ===== Contact Form ===== */
.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 600px;
  margin-top: 1.5rem;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}
.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.inquiry-form textarea {
  min-height: 120px;
  resize: vertical;
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .card-grid-3,
  .offer-grid,
  .path-grid,
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .intro-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page { padding-top: 72px; }
  .section { padding: 3.5rem 1.2rem; }
  .hero { padding: 5rem 1.2rem 3.5rem; }
  
  .card-grid-2,
  .card-grid-3,
  .offer-grid,
  .path-grid,
  .metrics-grid,
  .systems-grid,
  .principles-grid,
  .info-grid,
  .writing-grid {
    grid-template-columns: 1fr;
  }

  .proof-strip {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.25rem 0;
  }
  .proof-item {
    border-right: none;
    padding-right: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .btn-group {
    flex-direction: column;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }

  /* Mobile Nav */
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: 2rem;
    gap: 0.5rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }
  .nav-links.open {
    transform: translateX(0);
  }
  .nav-links a {
    font-size: 1.1rem;
    padding: 0.75rem 1rem;
    width: 100%;
  }
  .nav-links a.nav-cta {
    margin-left: 0;
    text-align: center;
  }
  .nav-toggle {
    display: flex;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: clamp(1.9rem, 8vw, 2.3rem);
  }
  .section-title {
    font-size: 1.5rem;
  }
  .card,
  .system-card,
  .offer-card,
  .path-card {
    padding: 1.1rem;
  }
}

/* ===== ISNAD Page ===== */
.isnad-page {
  --isnad-bg: #0B0F0E;
  --isnad-surface: #121917;
  --isnad-green: #2FBF71;
  --isnad-text: #E8EDEB;
  --isnad-muted: #96A39D;
  --isnad-amber: #E8B93E;
  --isnad-red: #E4574D;
  --isnad-grey: #8B8F93;
  --isnad-border: rgba(150, 163, 157, 0.15);
  background: var(--isnad-bg);
  color: var(--isnad-text);
  min-height: 100vh;
}

.isnad-page .nav {
  background: rgba(11, 15, 14, 0.96);
  border-bottom: 1px solid var(--isnad-border);
}

.isnad-page .footer {
  background: var(--isnad-bg);
  border-top: 1px solid var(--isnad-border);
}

.isnad-page .footer a {
  color: var(--isnad-muted);
}
.isnad-page .footer a:hover {
  color: var(--isnad-text);
}

.isnad-hero {
  padding: 10rem 2rem 5rem;
  position: relative;
  overflow: hidden;
}

.isnad-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cdefs%3E%3Cpattern id='star8' width='80' height='80' patternUnits='userSpaceOnUse'%3E%3Cpath d='M40 0 L50 20 L70 30 L50 40 L40 60 L30 40 L10 30 L30 20 Z' fill='none' stroke='%232FBF71' stroke-width='0.5' opacity='0.12'/%3E%3Ccircle cx='40' cy='40' r='2' fill='%232FBF71' opacity='0.05'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='200' height='200' fill='url(%23star8)'/%3E%3C/svg%3E");
  opacity: 0.4;
  pointer-events: none;
}

.isnad-hero-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.isnad-arabic {
  font-size: clamp(3.5rem, 8vw, 6rem);
  color: var(--isnad-green);
  margin-bottom: 0.5rem;
  line-height: 1.2;
  font-weight: 400;
}

.isnad-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  color: var(--isnad-text);
}

.isnad-tagline {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--isnad-muted);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto 1rem;
}

.isnad-sub {
  font-size: 0.95rem;
  color: var(--isnad-muted);
  line-height: 1.7;
  max-width: 650px;
  margin: 0 auto 2rem;
  opacity: 0.8;
}

.isnad-hero-btns {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
}

.isnad-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  min-height: 46px;
  border-radius: 8px;
  font-size: 0.93rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all 0.2s ease;
  cursor: pointer;
}

.isnad-btn-primary {
  background: var(--isnad-green);
  color: #0B0F0E;
  border: 1px solid var(--isnad-green);
}
.isnad-btn-primary:hover {
  background: #3bd47c;
  transform: translateY(-2px);
}

.isnad-btn-secondary {
  background: transparent;
  color: var(--isnad-text);
  border: 1px solid var(--isnad-border);
}
.isnad-btn-secondary:hover {
  border-color: var(--isnad-green);
  background: rgba(47, 191, 113, 0.06);
  transform: translateY(-2px);
}

/* ===== Chain Animation ===== */
.chain-section {
  padding: 2rem 0 4rem;
}

.chain-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

.chain-svg-wrap {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.chain-svg-wrap svg {
  width: 100%;
  min-width: 600px;
  height: auto;
}

.chain-caption {
  text-align: center;
  font-size: 0.95rem;
  color: var(--isnad-muted);
  margin-top: 1rem;
  font-style: italic;
  min-height: 1.5em;
  transition: opacity 0.4s ease;
}

/* Node colors */
.node-reliable { fill: var(--isnad-green); }
.node-ungraded { fill: var(--isnad-amber); }
.node-weak { fill: var(--isnad-red); }

/* Grade chip colors */
.grade-sahih { fill: var(--isnad-green); color: var(--isnad-green); }
.grade-hasan { fill: var(--isnad-amber); color: var(--isnad-amber); }
.grade-daif { fill: var(--isnad-red); color: var(--isnad-red); }

/* ISNAD sections */
.isnad-section {
  padding: 4rem 2rem;
  border-top: 1px solid var(--isnad-border);
}

.isnad-section-inner {
  max-width: 800px;
  margin: 0 auto;
}

.isnad-section h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--isnad-text);
}

.isnad-section p {
  font-size: 1rem;
  color: var(--isnad-muted);
  line-height: 1.75;
  margin-bottom: 1rem;
}

/* Principle cards for ISNAD */
.isnad-principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.isnad-principle {
  background: var(--isnad-surface);
  border: 1px solid var(--isnad-border);
  border-radius: 8px;
  padding: 1.2rem;
}

.isnad-principle .num {
  font-size: 0.7rem;
  color: var(--isnad-green);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

.isnad-principle p {
  font-size: 0.9rem;
  color: var(--isnad-muted);
  line-height: 1.6;
  margin: 0;
}

/* Decision Matrix */
.isnad-matrix-wrap {
  overflow-x: auto;
  margin-top: 1.5rem;
}

.isnad-matrix {
  width: 100%;
  min-width: 600px;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}

.isnad-matrix th,
.isnad-matrix td {
  padding: 0.85rem 1rem;
  text-align: left;
  border: 1px solid var(--isnad-border);
}

.isnad-matrix th {
  background: var(--isnad-surface);
  font-weight: 600;
  color: var(--isnad-text);
  font-size: 0.85rem;
}

.isnad-matrix td {
  color: var(--isnad-muted);
  line-height: 1.5;
}

.isnad-matrix .row-sahih { border-left: 3px solid var(--isnad-green); }
.isnad-matrix .row-hasan { border-left: 3px solid var(--isnad-amber); }
.isnad-matrix .row-daif { border-left: 3px solid var(--isnad-red); }
.isnad-matrix .row-mawdu { border-left: 3px solid var(--isnad-grey); }

.matrix-caption {
  font-size: 0.85rem;
  color: var(--isnad-muted);
  margin-top: 0.75rem;
  font-style: italic;
  line-height: 1.6;
}

/* Code Block */
.isnad-code {
  background: #0a0f0d;
  border: 1px solid var(--isnad-border);
  border-radius: 8px;
  padding: 1.2rem;
  margin-top: 1rem;
  position: relative;
  overflow-x: auto;
}

.isnad-code pre {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--isnad-muted);
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
}

.copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background: var(--isnad-surface);
  border: 1px solid var(--isnad-border);
  color: var(--isnad-muted);
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.copy-btn:hover {
  border-color: var(--isnad-green);
  color: var(--isnad-green);
}

/* Honest Status Panel */
.isnad-honest {
  background: var(--isnad-surface);
  border: 1px solid var(--isnad-border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-top: 1rem;
  border-left: 3px solid var(--isnad-green);
}

.isnad-honest h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--isnad-text);
  margin-bottom: 0.75rem;
}

.isnad-honest p {
  font-size: 0.93rem;
  color: var(--isnad-muted);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.isnad-honest p:last-child {
  margin-bottom: 0;
}

/* Links grid */
.isnad-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.isnad-link-card {
  background: var(--isnad-surface);
  border: 1px solid var(--isnad-border);
  border-radius: 8px;
  padding: 1rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.isnad-link-card:hover {
  border-color: var(--isnad-green);
  transform: translateY(-2px);
}
.isnad-link-card a {
  color: var(--isnad-green);
  font-weight: 600;
  font-size: 0.9rem;
}
.isnad-link-card .link-desc {
  font-size: 0.8rem;
  color: var(--isnad-muted);
  margin-top: 0.2rem;
}

.isnad-link-card.muted {
  opacity: 0.5;
  pointer-events: none;
}

/* BibTeX */
.isnad-bibtex {
  background: #0a0f0d;
  border: 1px solid var(--isnad-border);
  border-radius: 8px;
  padding: 1.2rem;
  margin-top: 1rem;
  position: relative;
  overflow-x: auto;
}

.isnad-bibtex pre {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--isnad-muted);
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
}

/* ISNAD Footer */
.isnad-footer-note {
  font-size: 0.85rem;
  color: var(--isnad-muted);
  line-height: 1.7;
  margin-top: 0.5rem;
  font-style: italic;
}

/* ISNAD responsive */
@media (max-width: 768px) {
  .isnad-hero {
    padding: 7rem 1.2rem 3.5rem;
  }
  .isnad-section {
    padding: 3rem 1.2rem;
  }
  .isnad-hero-btns {
    flex-direction: column;
    align-items: center;
  }
  .isnad-btn {
    width: 100%;
    max-width: 280px;
  }
}

/* ===== Print / Misc ===== */
@media print {
  .nav, .footer { display: none; }
  body { background: #fff; color: #000; }
  .section { border: none; padding: 1rem 0; }
}