:root {
  --bg: #020606;
  --ink: #f2fbfb;
  --muted: #a9b8bb;
  --dim: #6f8488;
  --cyan: #5dffff;
  --cyan-strong: #1cf3f3;
  --amber: #ffd76a;
  --coral: #ff8f6b;
  --panel: rgba(5, 14, 16, 0.82);
  --panel-strong: rgba(8, 20, 23, 0.94);
  --line: rgba(125, 255, 255, 0.2);
  --line-soft: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.48);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: -3;
  background-image:
    url("../textures/light-window-tile.png"),
    url("../textures/light-window-tile.png");
  background-repeat: repeat, repeat;
  background-size: 82px 1047px, 82px 1047px;
  background-position: 0 0, 41px 524px;
  opacity: 0.72;
}

body::after {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.68), rgba(0, 0, 0, 0.16) 48%, rgba(0, 0, 0, 0.72)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.32), rgba(0, 0, 0, 0.58) 72%, rgba(0, 0, 0, 0.75));
}

body.focus-page {
  background: #031016;
}

body.focus-page::before {
  z-index: -3;
  background:
    radial-gradient(circle at 18% 18%, rgba(26, 218, 230, 0.34), transparent 33%),
    radial-gradient(circle at 78% 12%, rgba(71, 124, 255, 0.22), transparent 28%),
    radial-gradient(circle at 66% 74%, rgba(31, 244, 190, 0.24), transparent 34%),
    radial-gradient(circle at 26% 82%, rgba(9, 58, 86, 0.7), transparent 36%),
    #02090d;
  filter: blur(28px);
  transform: scale(1.08);
  opacity: 1;
}

body.focus-page::after {
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(0, 8, 12, 0.32), rgba(0, 8, 12, 0.76)),
    radial-gradient(circle at 50% 22%, rgba(125, 255, 255, 0.08), transparent 42%);
}

a {
  color: inherit;
}

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

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

figure {
  margin: 1.5rem 0;
}

figure img,
figure video {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

button,
input,
select,
textarea {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  padding: 0.65rem 0.9rem;
  background: var(--cyan);
  color: #001012;
  border-radius: 4px;
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(16px);
}

.nav-shell {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  text-decoration: none;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: 3px;
}

.brand-mark span {
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(93, 255, 255, 0.62);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(4, 20, 22, 0.9);
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

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

.site-nav a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.78rem;
  border-radius: 4px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(93, 255, 255, 0.1);
}

.page-main {
  min-height: 100vh;
}

.shell {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  padding: clamp(3rem, 7vw, 6.5rem) 0 clamp(2rem, 5vw, 4rem);
  overflow: hidden;
}

.home-hero {
  min-height: auto;
  padding-top: clamp(2.75rem, 6vw, 5rem);
}

.home-intro {
  max-width: 1040px;
  text-align: center;
}

.home-mark {
  display: inline-block;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(93, 255, 255, 0.42);
}

.home-title {
  max-width: none;
  margin-left: auto;
  margin-right: auto;
  line-height: 0.88;
}

.home-formerly {
  margin: 0.55rem 0 0;
  color: #b9c8ca;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  text-transform: uppercase;
}

.home-kicker {
  margin: 1.35rem auto 1.75rem;
  color: var(--cyan);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 900;
  text-transform: uppercase;
}

.home-statement {
  max-width: 980px;
  margin: 0 auto;
  color: #dce8ea;
  font-size: clamp(1.02rem, 1.8vw, 1.22rem);
}

.home-mission {
  max-width: 740px;
  margin: 0 auto 1.45rem;
  color: #f2fbfb;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  font-weight: 800;
  line-height: 1.28;
}

.home-feature-lists {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 6vw, 5rem);
  max-width: 820px;
  margin: 1.5rem 0;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.home-feature-lists ul {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.home-feature-lists li {
  position: relative;
  padding-left: 1.05rem;
}

.home-feature-lists li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.48rem;
  height: 0.48rem;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(93, 255, 255, 0.68);
}

.home-promise {
  max-width: 840px;
  margin: 1.9rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(93, 255, 255, 0.24);
  color: #f2fbfb;
  font-size: clamp(1.02rem, 1.8vw, 1.24rem);
  font-weight: 800;
  line-height: 1.45;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.eyebrow::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(93, 255, 255, 0.78);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 11ch;
  margin-bottom: 1rem;
  font-size: clamp(4rem, 13vw, 10.5rem);
  line-height: 0.82;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 760px;
  margin-bottom: 2rem;
  color: #dce8ea;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

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

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.72rem 1rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(5, 18, 20, 0.88);
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  border-color: transparent;
  background: var(--cyan);
  color: #001013;
}

.button.warm {
  border-color: transparent;
  background: var(--amber);
  color: #171000;
}

.button:hover {
  transform: translateY(-1px);
}

.section {
  padding: clamp(3.5rem, 7vw, 6.5rem) 0;
  border-top: 1px solid var(--line-soft);
}

.section.compact {
  padding-top: clamp(2.5rem, 5vw, 4rem);
}

.home-section {
  padding-top: clamp(1.75rem, 4vw, 3rem);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(18rem, 0.55fr);
  align-items: end;
  gap: clamp(1.5rem, 4vw, 4rem);
  margin-bottom: 2rem;
}

.section-heading h2,
.page-heading h1 {
  margin-bottom: 0.75rem;
  font-size: clamp(2.1rem, 5vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-heading p,
.page-heading p {
  color: var(--muted);
}

.page-heading {
  padding: clamp(4rem, 9vw, 8rem) 0 clamp(2rem, 5vw, 4rem);
}

.kicker-grid,
.product-grid,
.tutorial-grid,
.gallery-grid,
.contact-grid {
  display: grid;
  gap: 1rem;
}

.kicker-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tutorial-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gallery-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.resource-list {
  display: grid;
  gap: 0.85rem;
  max-width: 920px;
  margin: 0 auto;
}

.resource-card {
  min-height: 104px;
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(5, 14, 16, 0.86);
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow);
}

.resource-card span {
  position: relative;
  padding-left: 1.05rem;
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.resource-card span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 0.58rem;
  height: 0.58rem;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(93, 255, 255, 0.7);
}

.resource-card strong {
  font-size: 1.05rem;
  line-height: 1.25;
}

.resource-card:hover:not(.disabled) {
  border-color: rgba(93, 255, 255, 0.58);
  transform: translateY(-1px);
}

.resource-card.disabled {
  color: rgba(242, 251, 251, 0.62);
  cursor: not-allowed;
  pointer-events: none;
}

.contact-grid {
  grid-template-columns: minmax(0, 0.8fr) minmax(20rem, 1fr);
  align-items: start;
}

.panel,
.card,
.fixture-card,
.form-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.card {
  min-height: 100%;
  padding: 1.2rem;
}

.card h3,
.fixture-card h3 {
  margin-bottom: 0.45rem;
  font-size: 1.1rem;
}

.card p,
.fixture-card p {
  color: var(--muted);
}

.card ul,
.feature-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.card li,
.feature-list li {
  position: relative;
  padding-left: 1rem;
  margin: 0.42rem 0;
  color: #d8e7e9;
}

.card li::before,
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.38rem;
  height: 0.38rem;
  background: var(--cyan);
}

.stat {
  padding: 1rem;
  border-left: 2px solid var(--cyan);
  background: rgba(0, 0, 0, 0.42);
}

.stat strong {
  display: block;
  color: var(--ink);
  font-size: 1.35rem;
}

.stat span {
  color: var(--muted);
  font-size: 0.9rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.product-card .button {
  margin-top: auto;
  align-self: flex-start;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.75rem 0;
}

.tag {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border: 1px solid rgba(255, 215, 106, 0.34);
  border-radius: 999px;
  color: #ffe7a0;
  font-size: 0.82rem;
}

.image-card {
  overflow: hidden;
}

.image-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: #111;
}

.image-card img.construction-thumb {
  aspect-ratio: 1040 / 310;
  object-fit: fill;
  padding: 0;
  background: #fff22a;
}

.image-card .card-body {
  padding: 1rem;
}

.tutorial-card {
  color: var(--ink);
  text-decoration: none;
}

.tutorial-card:hover {
  border-color: rgba(93, 255, 255, 0.56);
  transform: translateY(-1px);
}

.tutorial-card h3 {
  font-size: 1.18rem;
  line-height: 1.2;
}

.lesson-hero {
  padding: clamp(3rem, 8vw, 7rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.lesson-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(18rem, 0.45fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: start;
}

.lesson-layout-single {
  grid-template-columns: minmax(0, 1fr);
}

.lesson-layout-single .lesson-copy {
  width: 100%;
  max-width: none;
}

.lesson-layout-single .lesson-copy p {
  max-width: 100%;
}

.lesson-copy {
  max-width: 760px;
}

.lesson-copy h1 {
  max-width: 12ch;
  font-size: clamp(3.2rem, 9vw, 7rem);
}

.lesson-copy p {
  color: #d6edf0;
  font-size: clamp(1rem, 1.8vw, 1.25rem);
}

.lesson-thumb {
  overflow: hidden;
  border: 1px solid rgba(125, 255, 255, 0.22);
  border-radius: 6px;
  background: rgba(3, 18, 24, 0.7);
  box-shadow: var(--shadow);
}

.lesson-thumb img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.lesson-thumb img.construction-thumb {
  aspect-ratio: 1040 / 310;
  object-fit: fill;
  padding: 0;
  background: #fff22a;
}

.lesson-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(125, 255, 255, 0.2);
  border-radius: 6px;
  background: rgba(4, 18, 24, 0.72);
  box-shadow: var(--shadow);
}

.lesson-panel h2 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1;
}

.lesson-panel p {
  color: var(--muted);
}

.lesson-panel figure {
  max-width: 100%;
  margin: 1.5rem 0;
  padding: 0 10px;
}

.lesson-panel figure img,
.lesson-panel figure video {
  width: 100%;
  display: block;
}

.lesson-panel figure video {
  width: 100%;
}

.lesson-panel + .lesson-panel {
  margin-top: 1rem;
}

.library-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 14rem;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.library-tools input,
.library-tools select,
.form-card input,
.form-card select,
.form-card textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.52);
  color: var(--ink);
  padding: 0.7rem 0.8rem;
}

.fixture-card {
  overflow: hidden;
}

.fixture-thumb {
  aspect-ratio: 1.25;
  background: rgba(255, 255, 255, 0.05);
}

.fixture-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fixture-body {
  padding: 1rem;
}

.fixture-meta {
  color: var(--dim);
  font-size: 0.88rem;
}

.form-card {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.form-card label {
  display: block;
  margin-bottom: 1rem;
  color: #dce9eb;
  font-weight: 700;
}

.form-card label span {
  display: block;
  margin-bottom: 0.35rem;
}

.form-card textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-card button {
  min-height: 48px;
  width: 100%;
  border: 0;
  border-radius: 4px;
  background: var(--cyan);
  color: #001013;
  font-weight: 900;
  cursor: pointer;
}

.hidden {
  display: none;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.72);
  color: var(--muted);
}

.footer-shell {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  text-align: center;
}

.footer-credit {
  max-width: 820px;
  margin: 0;
  color: #dce8ea;
  font-size: 0.95rem;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1rem 1rem;
    border-bottom: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.95);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    justify-content: center;
  }

  .section-heading,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .kicker-grid,
  .product-grid,
  .tutorial-grid,
  .gallery-grid,
  .resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 620px) {
  .nav-shell,
  .shell,
  .footer-shell {
    width: min(100% - 1.1rem, var(--max));
  }

  h1 {
    font-size: clamp(3.25rem, 22vw, 5.6rem);
  }

  .kicker-grid,
  .product-grid,
  .tutorial-grid,
  .gallery-grid,
  .resource-grid,
  .library-tools {
    grid-template-columns: 1fr;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .resource-card {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .home-feature-lists {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
}

/* ── Tip bars ──────────────────────────────────────────────────────────────── */

.tip {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
  margin: 1.25rem 0;
  padding: 0.75rem 1.25rem;
  border: 1px solid rgba(93, 255, 255, 0.35);
  border-radius: 10px;
  box-shadow: 0 0 14px rgba(93, 255, 255, 0.15);
  background: rgba(4, 18, 24, 0.92);
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
}

.tip-meta {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  flex-shrink: 0;
  padding-right: 1.25rem;
  border-right: 1px solid var(--line);
  min-width: 110px;
}

.tip-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--cyan);
}

.tip-name {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
}

.tip-body {
  flex: 1;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}

.tip-toggle {
  flex-shrink: 0;
  background: none;
  border: 1px solid rgba(93, 255, 255, 0.4);
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  color: var(--cyan);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.tip-toggle:hover {
  background: rgba(93, 255, 255, 0.1);
  color: var(--cyan-strong);
}

/* Overlay backdrop */
.tip-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.72);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.tip-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

.tip-overlay-inner {
  max-width: 540px;
  width: calc(100% - 2rem);
  padding: 1.75rem 2rem;
  border: 1px solid rgba(93, 255, 255, 0.4);
  border-radius: 14px;
  box-shadow: 0 0 32px rgba(93, 255, 255, 0.2);
  background: var(--panel-strong);
  transform: scale(0.94);
  transition: transform 0.2s ease;
}

.tip-overlay.is-open .tip-overlay-inner {
  transform: scale(1);
}

.tip-overlay-inner p {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.tip-overlay-inner p:last-child {
  margin-bottom: 0;
}

.tip-overlay-inner strong {
  color: var(--ink);
}

/* ── DMX flow diagram ──────────────────────────────────────────────────────── */

.dmx-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin: 2rem 0;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
  max-width: 98%;
  padding: 1.75rem 2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(4, 18, 24, 0.72);
}

.flow-step img,
.flow-step video {
  width: 100%;
  max-width: 680px;
  height: auto;
  border-radius: 6px;
  display: block;
  margin: 0 auto;
}

.flow-step-text {
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
  width: 100%;
}

.flow-step-text h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
  color: var(--ink);
  text-align: center;
}

.flow-step-text p {
  margin: 0 0 0.5rem;
}

.flow-step-text p:last-child {
  margin-bottom: 0;
}

.flow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 0.25rem 0;
  width: 100%;
}

.flow-arrow::before {
  content: "";
  display: block;
  width: 2px;
  height: 2.25rem;
  background: linear-gradient(to bottom, rgba(93, 255, 255, 0.25), var(--cyan));
}

.flow-arrow::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-top: 13px solid var(--cyan);
  margin-bottom: 0.4rem;
}

.flow-arrow-label {
  font-size: 0.82rem;
  color: var(--muted);
  font-style: italic;
  text-align: center;
  max-width: 580px;
  padding: 0 1rem;
  margin-top: 0.25rem;
}

.flow-num-item {
  width: 100%;
  padding-bottom: 2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.flow-num-item:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.flow-num-item h3 {
  text-align: center;
  font-size: 1.1rem;
  color: var(--ink);
  margin: 0;
}

.flow-num-item img,
.flow-num-item video {
  width: 100%;
  max-width: 680px;
  height: auto;
  border-radius: 6px;
}

.flow-num-item .flow-step-text {
  width: 100%;
}

@media (max-width: 620px) {
  .tip {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .tip-meta {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 0.5rem;
    width: 100%;
    min-width: unset;
  }

  .tip-body {
    width: 100%;
  }

  .flow-step img,
  .flow-step video {
    width: 100%;
  }
}

/* ── Video overlay player ─────────────────────────────────────────────────── */
.video-overlay-player {
  position: relative;
  display: block;
  width: 100%;
  margin: 1.5rem 0;
  border-radius: 8px;
  overflow: hidden;
  background: #000;
  line-height: 0;
}

.video-overlay-player video {
  width: 100%;
  display: block;
}

.video-overlay-cover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
}

.video-overlay-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-overlay-cover.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.85);
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, opacity 0.3s;
  padding-left: 3px;
}

.video-play-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}

.video-play-btn.is-hidden {
  opacity: 0;
  pointer-events: none;
}