/* =========================================================
   JTINS: Journal of Technology and Informatics Science
   Journal style sheet for OJS 3.3 Default theme - "Depth" edition
   Upload: Settings > Website > Appearance > Journal style sheet
   Concept: a floating paper sheet over a moving 3D data grid.
   Ink navy + signal amber, Plex type family. CSS only (no JS).
   ========================================================= */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Serif:wght@500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

@property --jt-angle { syntax: "<angle>"; inherits: false; initial-value: 0deg; }

:root {
  --jt-ink: #0f1d33;
  --jt-ink-2: #1b3054;
  --jt-ink-3: #284a7a;
  --jt-amber: #d18a1c;
  --jt-amber-hi: #f2c66d;
  --jt-paper: #ffffff;
  --jt-mist: #f2f5f9;
  --jt-ground: #e4e9f0;
  --jt-line: #dbe2ec;
  --jt-text: #1d2634;
  --jt-muted: #5a6577;
  --jt-link: #1e5aa8;
  --jt-sans: "IBM Plex Sans", "Segoe UI", Roboto, Arial, sans-serif;
  --jt-serif: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --jt-mono: "IBM Plex Mono", Consolas, "Courier New", monospace;
  /* layered depth: contact shadow + ambient shadow */
  --jt-d1: 0 1px 2px rgba(15, 29, 51, .08), 0 2px 6px rgba(15, 29, 51, .06);
  --jt-d2: 0 2px 4px rgba(15, 29, 51, .08), 0 8px 20px rgba(15, 29, 51, .10);
  --jt-d3: 0 4px 8px rgba(15, 29, 51, .10), 0 22px 48px rgba(15, 29, 51, .18);
  --jt-ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- Ground and floating page ---------- */
html, body { background-color: var(--jt-ground); }
body {
  font-family: var(--jt-sans); color: var(--jt-text);
  background-image: radial-gradient(rgba(15, 29, 51, .10) 1px, transparent 1px);
  background-size: 22px 22px;
}
.pkp_structure_page {
  background: var(--jt-paper);
  border-radius: 14px; overflow: hidden;
  box-shadow: var(--jt-d3), 0 0 0 1px rgba(15, 29, 51, .05);
  margin-top: 24px; margin-bottom: 32px;
}
.pkp_structure_content { line-height: 1.65; animation: jt-rise .6s var(--jt-ease) both; }
a { color: var(--jt-link); transition: color .2s; }
a:hover, a:focus { color: var(--jt-amber); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--jt-amber); outline-offset: 2px; }
h1, h2, h3, .page h1, .obj_article_details .page_title { font-family: var(--jt-serif); color: var(--jt-ink); text-wrap: balance; }
.page h1 { font-size: 1.85rem; padding-bottom: .5rem; position: relative; }
.page h1::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 72px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--jt-amber), var(--jt-amber-hi));
}
.page h3 { font-size: 1.15rem; margin-top: 2rem; }

/* ---------- Header: moving 3D data grid ---------- */
.pkp_structure_head {
  position: relative; overflow: hidden; isolation: isolate;
  background: linear-gradient(160deg, var(--jt-ink) 0%, var(--jt-ink-2) 60%, var(--jt-ink-3) 100%);
  border-bottom: 0;
}
.pkp_structure_head::before {           /* grid floor receding in perspective */
  content: ""; position: absolute; z-index: -1; left: -100%; right: -100%; bottom: 0; height: 100%;
  background-image:
    linear-gradient(rgba(242, 198, 109, .6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 198, 109, .6) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: perspective(220px) rotateX(42deg);
  transform-origin: 50% 100%;
  -webkit-mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,.45) 55%, transparent 100%);
          mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,.45) 55%, transparent 100%);
  animation: jt-grid 4s linear infinite;
}
.pkp_structure_head::after {            /* amber light line with travelling glint */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: linear-gradient(90deg, var(--jt-amber) 0%, var(--jt-amber) 40%, #fff6dc 50%, var(--jt-amber) 60%, var(--jt-amber) 100%);
  background-size: 250% 100%;
  animation: jt-glint 5s linear infinite;
}
.pkp_head_wrapper { position: relative; padding-bottom: 2.4rem; }
.pkp_site_name .is_text, .pkp_site_name a {
  color: #fff; font-family: var(--jt-serif); font-weight: 600; letter-spacing: .005em;
  text-shadow: 0 1px 0 #0a1528, 0 2px 0 #08111f, 0 3px 0 #060d18, 0 6px 14px rgba(0, 0, 0, .45);  /* extruded */
}
.pkp_site_name .is_img img { max-height: 90px; filter: drop-shadow(0 6px 12px rgba(0, 0, 0, .35)); }

/* glass navigation */
.pkp_navigation_primary_wrapper {
  background: rgba(15, 29, 51, .35);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, .10);
}
.pkp_navigation_primary > li > a {
  color: #e8edf5; font-weight: 500; letter-spacing: .02em; position: relative; border-bottom: 0;
}
.pkp_navigation_primary > li > a::after {
  content: ""; position: absolute; left: 50%; right: 50%; bottom: 4px; height: 2px; border-radius: 2px;
  background: var(--jt-amber-hi); transition: left .3s var(--jt-ease), right .3s var(--jt-ease);
}
.pkp_navigation_primary > li > a:hover, .pkp_navigation_primary > li > a:focus { color: #fff; }
.pkp_navigation_primary > li > a:hover::after, .pkp_navigation_primary > li > a:focus::after { left: 10%; right: 10%; }
.pkp_navigation_user > li > a, .pkp_head_wrapper .pkp_search .search_controls a { color: #e8edf5; }
.pkp_navigation_primary_row .dropdown-menu { border-radius: 10px; box-shadow: var(--jt-d3); border: 0; overflow: hidden; }
.pkp_navigation_primary_row .dropdown-menu a { color: var(--jt-ink); }
.pkp_navigation_primary_row .dropdown-menu a:hover { background: var(--jt-mist); }

/* ---------- Sidebar: raised tiles ---------- */
.pkp_structure_sidebar { perspective: 900px; }
.pkp_structure_sidebar .pkp_block {
  margin: 0 0 1rem; padding: 1.1rem 1.25rem; background: var(--jt-paper);
  border: 1px solid var(--jt-line); border-radius: 12px;
  box-shadow: var(--jt-d1), inset 0 1px 0 #fff;
  transition: transform .35s var(--jt-ease), box-shadow .35s var(--jt-ease);
}
.pkp_structure_sidebar .pkp_block:hover { transform: translateY(-3px) rotateX(2deg); box-shadow: var(--jt-d2); }
.pkp_block .title {
  font-family: var(--jt-sans); font-size: .72rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .12em; color: var(--jt-muted); margin-bottom: .7rem;
  display: flex; align-items: center; gap: .5rem;
}
.pkp_block .title::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg);
  background: linear-gradient(135deg, var(--jt-amber-hi), var(--jt-amber));
  box-shadow: 0 1px 3px rgba(209, 138, 28, .5);
}
.jt-side-menu { list-style: none; margin: 0; padding: 0; }
.jt-side-menu li { border-bottom: 1px solid var(--jt-line); }
.jt-side-menu li:last-child { border-bottom: 0; }
.jt-side-menu a {
  display: block; padding: .4rem .2rem; color: var(--jt-ink); text-decoration: none; font-size: .9rem;
  border-radius: 6px; transition: background .2s, padding .25s var(--jt-ease), color .2s;
}
.jt-side-menu a:hover { background: var(--jt-mist); padding-left: .6rem; color: var(--jt-ink-3); }
.jt-side-group { font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; color: var(--jt-amber); margin: 1rem 0 .2rem; }
.jt-side-group:first-child { margin-top: 0; }
.jt-side-info { font-family: var(--jt-mono); font-size: .8rem; line-height: 1.8; color: var(--jt-text); }
.jt-side-info b { font-family: var(--jt-sans); font-weight: 600; color: var(--jt-ink); }

/* 3D push buttons */
.jt-side-btn, .jt-btn {
  display: block; text-align: center; text-decoration: none; font-weight: 600; border-radius: 10px;
  color: #fff !important; padding: .72rem 1.1rem;
  background: linear-gradient(180deg, var(--jt-ink-3), var(--jt-ink-2));
  box-shadow: 0 4px 0 var(--jt-ink), 0 8px 16px rgba(15, 29, 51, .25), inset 0 1px 0 rgba(255, 255, 255, .18);
  transition: transform .12s, box-shadow .12s, filter .2s;
}
.jt-side-btn:hover, .jt-btn:hover { filter: brightness(1.12); }
.jt-side-btn:active, .jt-btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--jt-ink), 0 3px 6px rgba(15, 29, 51, .25), inset 0 1px 0 rgba(255, 255, 255, .18) !important; }
.jt-side-btn + .jt-side-btn, .jt-btn-ghost {
  margin-top: .7rem; color: var(--jt-ink) !important;
  background: linear-gradient(180deg, #fff, var(--jt-mist));
  box-shadow: 0 4px 0 var(--jt-line), 0 8px 16px rgba(15, 29, 51, .10), inset 0 0 0 1px var(--jt-line);
}
.jt-side-btn + .jt-side-btn:active, .jt-btn-ghost:active { box-shadow: 0 1px 0 var(--jt-line), inset 0 0 0 1px var(--jt-line) !important; }

/* ---------- Content components ---------- */
.jt-lead { font-size: 1.06rem; }
.jt-note {
  color: var(--jt-muted); font-size: .92rem; padding: .7rem 1rem; border-radius: 10px;
  background: linear-gradient(90deg, rgba(209, 138, 28, .10), transparent 70%);
  border-left: 3px solid var(--jt-amber);
}
.jt-todo { background: #fff3cd; color: #7a4b00; font-family: var(--jt-mono); font-size: .85em; padding: 0 .3em; border-radius: 4px; }

.jt-facts {
  width: 100%; border-collapse: separate; border-spacing: 0; margin: 1.2rem 0; font-size: .93rem;
  border: 1px solid var(--jt-line); border-radius: 12px; overflow: hidden; box-shadow: var(--jt-d1);
}
.jt-facts th, .jt-facts td { text-align: left; vertical-align: top; padding: .6rem .9rem; border-bottom: 1px solid var(--jt-line); }
.jt-facts tr:last-child th, .jt-facts tr:last-child td { border-bottom: 0; }
.jt-facts th { width: 32%; background: var(--jt-mist); color: var(--jt-ink); font-weight: 600; }
.jt-facts tr { transition: background .2s; }
.jt-facts tr:hover td { background: #fbfcfe !important; }

.jt-cols { columns: 2 16rem; column-gap: 2rem; padding-left: 1.1rem; }
.jt-cols li { break-inside: avoid; margin-bottom: .35rem; }
.jt-cols li::marker { color: var(--jt-amber); }

/* numbered steps as glossy spheres on a rail */
.jt-steps { counter-reset: s; list-style: none; padding-left: 0; position: relative; }
.jt-steps::before { content: ""; position: absolute; left: .9rem; top: .4rem; bottom: 1.2rem; width: 2px; background: linear-gradient(var(--jt-amber), var(--jt-line)); }
.jt-steps li { counter-increment: s; position: relative; padding: 0 0 1rem 2.9rem; }
.jt-steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 1.85rem; height: 1.85rem; border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, #5b82bd 0%, var(--jt-ink-2) 45%, var(--jt-ink) 100%);
  box-shadow: 0 3px 8px rgba(15, 29, 51, .35), inset 0 -2px 3px rgba(0, 0, 0, .3);
  color: #fff; font-family: var(--jt-mono); font-size: .8rem; display: flex; align-items: center; justify-content: center;
}

.jt-person {
  padding: .9rem 1rem; margin: .6rem 0; background: var(--jt-paper); border: 1px solid var(--jt-line); border-radius: 12px;
  box-shadow: var(--jt-d1); transition: transform .3s var(--jt-ease), box-shadow .3s var(--jt-ease);
}
.jt-person:hover { transform: translateY(-2px); box-shadow: var(--jt-d2) !important; }
/* inline-styled cards from the static pages */
.jt-page { perspective: 1000px; }
.jt-card { transition: transform .35s var(--jt-ease), box-shadow .35s var(--jt-ease); }
.jt-card:hover { transform: translateY(-4px) rotateX(3deg); box-shadow: var(--jt-d3) !important; }
.jt-page h2.jt-h { position: relative; }
.jt-page a.jt-btn { transition: transform .12s, box-shadow .12s, filter .2s; }
.jt-name { font-weight: 600; color: var(--jt-ink); }
.jt-aff { color: var(--jt-muted); font-size: .92rem; }
.jt-links { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .45rem; }
.jt-links a {
  font-family: var(--jt-mono); font-size: .72rem; text-decoration: none; color: var(--jt-ink);
  background: var(--jt-mist); border: 1px solid var(--jt-line); padding: .12rem .55rem; border-radius: 999px;
  transition: transform .2s, border-color .2s, color .2s;
}
.jt-links a:hover { border-color: var(--jt-amber); color: var(--jt-amber); transform: translateY(-1px); }

/* ---------- Homepage hero: animated border + 3D orbit ---------- */
.jt-hero {
  position: relative; overflow: hidden; border-radius: 16px; padding: 1.8rem 1.8rem 1.6rem; margin-bottom: 1.6rem;
  border: 2px solid transparent !important;
  background:
    linear-gradient(135deg, #fff 0%, var(--jt-mist) 100%) padding-box,
    conic-gradient(from var(--jt-angle), var(--jt-amber), var(--jt-ink-3), var(--jt-amber-hi), var(--jt-ink-2), var(--jt-amber)) border-box !important;
  box-shadow: var(--jt-d2);
  animation: jt-spin-border 8s linear infinite;
}
.jt-hero > * { position: relative; z-index: 1; max-width: 34rem; }
.jt-hero::before, .jt-hero::after {     /* two rings forming a gyroscope */
  content: ""; position: absolute; z-index: 0; right: -10px; top: 50%; width: 190px; height: 190px; margin-top: -95px;
  border-radius: 50%; border: 2px solid rgba(209, 138, 28, .55);
  box-shadow: 0 0 22px rgba(209, 138, 28, .25), inset 0 0 22px rgba(40, 74, 122, .15);
}
.jt-hero::before { animation: jt-orbit-x 9s linear infinite; }
.jt-hero::after { border-color: rgba(40, 74, 122, .5); animation: jt-orbit-y 12s linear infinite; }
.jt-hero h2 { margin: .25rem 0 .7rem; font-size: 1.75rem; }
.jt-kicker { font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; color: var(--jt-amber); font-weight: 600; margin: 0; }
.jt-btn { display: inline-block; margin: .6rem .6rem 0 0; }

/* ---------- Issue and article listings ---------- */
.obj_issue_toc .sections .section > h2, .current_issue .heading .label {
  font-family: var(--jt-sans); font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--jt-muted);
}
.cmp_article_list { perspective: 1200px; }
.obj_article_summary {
  padding: 1rem 1.2rem; margin-bottom: .9rem; background: var(--jt-paper);
  border: 1px solid var(--jt-line); border-radius: 12px; box-shadow: var(--jt-d1);
  transition: transform .35s var(--jt-ease), box-shadow .35s var(--jt-ease), border-color .35s;
}
.obj_article_summary:hover { transform: translateY(-4px) rotateX(3deg); box-shadow: var(--jt-d3); border-color: rgba(209, 138, 28, .45); }
.obj_article_summary > .title a { font-family: var(--jt-serif); color: var(--jt-ink); font-weight: 600; text-decoration: none; }
.obj_article_summary > .title a:hover { color: var(--jt-ink-3); }
.obj_galley_link {
  border: 0; border-radius: 8px; color: #fff; background: linear-gradient(180deg, var(--jt-ink-3), var(--jt-ink-2));
  box-shadow: 0 3px 0 var(--jt-ink), 0 6px 12px rgba(15, 29, 51, .2); transition: transform .12s, box-shadow .12s;
}
.obj_galley_link:hover { color: #fff; filter: brightness(1.12); }
.obj_galley_link:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--jt-ink); }
.obj_article_details .item.doi .value, .obj_article_details .item .label { font-family: var(--jt-mono); }

/* ---------- Footer ---------- */
.pkp_structure_footer_wrapper {
  position: relative; color: #cfd7e3;
  background: radial-gradient(120% 140% at 0% 0%, var(--jt-ink-2) 0%, var(--jt-ink) 60%);
}
.pkp_structure_footer_wrapper::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--jt-amber), transparent);
}
.pkp_structure_footer_wrapper a { color: #fff; }
.jt-footer { display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; font-size: .88rem; line-height: 1.75; }
.jt-footer > div { min-width: 0; flex: 1 1 14rem; }
.jt-footer b { color: #fff; }

/* ---------- Motion ---------- */
@keyframes jt-grid { to { background-position: 0 44px, 0 0; } }
@keyframes jt-glint { from { background-position: 100% 0; } to { background-position: -150% 0; } }
@keyframes jt-spin-border { to { --jt-angle: 360deg; } }
@keyframes jt-orbit-x { from { transform: perspective(600px) rotateX(70deg) rotateZ(0deg); } to { transform: perspective(600px) rotateX(70deg) rotateZ(360deg); } }
@keyframes jt-orbit-y { from { transform: perspective(600px) rotateY(0deg); } to { transform: perspective(600px) rotateY(360deg); } }
@keyframes jt-rise { from { transform: translateY(10px); } to { transform: none; } }

/* =========================================================
   Manuscript theme adjustments (ejournal.unsap.ac.id uses the
   "Default Manuscript" child theme). Verified on the live site.
   ========================================================= */
.pkp_structure_head .pkp_head_wrapper { padding-bottom: 0 !important; }
.pkp_structure_head .pkp_site_name_wrapper {
  background: transparent !important; height: auto !important;
  padding-top: 1.4rem !important; padding-bottom: 2.6rem !important;   /* room for the 3D grid */
}
.pkp_structure_head .pkp_site_name .is_text {
  text-transform: none !important; font-size: 1.6rem !important; letter-spacing: .005em !important;
}
.pkp_structure_head .pkp_navigation_user_wrapper { top: 1.6rem !important; }
.pkp_structure_head .pkp_navigation_primary_row {
  background: rgba(15, 29, 51, .35) !important; box-shadow: none !important;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, .10);
}
.pkp_structure_head .pkp_navigation_primary_wrapper { background: transparent !important; border-top: 0 !important; }
.pkp_structure_head .pkp_navigation_primary > li > a,
.pkp_structure_head .pkp_navigation_search_wrapper a { color: #e8edf5 !important; }
.pkp_structure_head .pkp_navigation_primary > li > a:hover,
.pkp_structure_head .pkp_navigation_search_wrapper a:hover { color: #fff !important; }
.pkp_structure_head .dropdown-menu a { color: var(--jt-ink) !important; }

/* page titles: Manuscript prints static-page titles as h2 */
.pkp_structure_main > .page > h1,
.pkp_structure_main > .page > h2:first-child {
  font-family: var(--jt-serif) !important; font-size: 1.85rem !important; font-weight: 600 !important;
  color: var(--jt-ink) !important; text-transform: none !important; letter-spacing: 0 !important;
  position: relative; padding-bottom: .55rem; margin-bottom: 1.2rem;
}
.pkp_structure_main > .page > h1::after,
.pkp_structure_main > .page > h2:first-child::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 72px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--jt-amber), var(--jt-amber-hi));
}

@media (max-width: 991px) {
  .pkp_structure_head .pkp_site_name_wrapper { padding-top: 0 !important; padding-bottom: 0 !important; }
  .pkp_structure_head .pkp_site_name .is_text { font-size: 1.05rem !important; }
  .pkp_structure_main > .page > h1, .pkp_structure_main > .page > h2:first-child { font-size: 1.5rem !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (max-width: 600px) {
  .pkp_structure_page { border-radius: 0; margin: 0; }
  .jt-facts th { width: 40%; }
  .jt-hero { padding: 1.2rem; }
  .jt-hero::before, .jt-hero::after { width: 120px; height: 120px; margin-top: -60px; right: -40px; opacity: .6; }
}