/* ============================================================
   NORTH CLASS — PAGE LAYOUTS
   ============================================================ */

/* ---------------- Page hero (inner pages) ---------------- */
.page-hero{
  padding-top: calc(var(--nav-h) + var(--sp-xl));
  padding-bottom: var(--sp-lg);
  text-align: center;
}
.page-hero h1{ font-size: var(--fs-2xl); margin-top: var(--sp-sm); }
.page-hero p{ color: var(--ink-muted); max-width: 52ch; margin: var(--sp-xs) auto 0; }

/* ---------------- HOME: Hero ---------------- */
.hero{
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-h);
  position: relative;
}
.hero__title{
  font-size: var(--fs-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: var(--sp-md);
}
.hero__title .char{ display: inline-block; }
.hero__motto{
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  color: var(--ink-muted);
  margin-top: var(--sp-xs);
}
.hero__welcome{
  max-width: 56ch;
  color: var(--ink-muted);
  margin: var(--sp-sm) auto 0;
}
.hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-xs);
  justify-content: center;
  margin-top: var(--sp-lg);
}

/* ---- readout panel: live clock, styled like a control-panel display ---- */
.readout{
  margin-top: var(--sp-xl);
  padding: var(--sp-md) var(--sp-lg);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-lg);
}
.readout__block{ text-align: left; }
.readout__label{
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.readout__value{
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  font-weight: 500;
  letter-spacing: .02em;
  text-shadow: 0 0 24px color-mix(in srgb, var(--aurora-green) 45%, transparent);
}
.readout__divider{ width: 1px; align-self: stretch; background: var(--glass-border); }

.hero__scroll-cue{
  position: absolute;
  bottom: var(--sp-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  color: var(--ink-faint);
  font-size: var(--fs-2xs);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.hero__scroll-cue svg{ width: 16px; height: 16px; animation: floatY 1.8s ease-in-out infinite; }

/* ---------------- HOME: Stats ---------------- */
.stats-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-sm);
}
.stat-card{
  padding: var(--sp-md);
  text-align: center;
}
.stat-card__icon{
  width: 40px; height: 40px;
  margin: 0 auto var(--sp-xs);
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--aurora-gradient-soft);
}
.stat-card__icon svg{ width: 20px; height: 20px; }
.stat-card__value{
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
}
.stat-card__label{ color: var(--ink-muted); font-size: var(--fs-sm); margin-top: .2rem; }

/* ---------------- HOME: Quick links ---------------- */
.tiles-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-sm);
}
.tile{
  padding: var(--sp-lg) var(--sp-md);
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med);
}
.tile:hover{ transform: translateY(-6px); border-color: rgba(255,255,255,0.28); }
.tile__icon{
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  background: var(--aurora-gradient-soft);
  margin-bottom: var(--sp-sm);
}
.tile__icon svg{ width: 22px; height: 22px; }
.tile h3{ font-size: var(--fs-lg); margin-bottom: .35rem; }
.tile p{ color: var(--ink-muted); font-size: var(--fs-sm); }
.tile__arrow{ margin-top: var(--sp-sm); display: inline-flex; align-items: center; gap: .3rem; font-size: var(--fs-xs); font-weight: 600; color: var(--ink); }
.tile__arrow svg{ width: 14px; height: 14px; transition: transform var(--dur-fast); }
.tile:hover .tile__arrow svg{ transform: translateX(4px); }

/* ---------------- Announcements (preview + full) ---------------- */
.announce-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-sm);
}
.announce-card{
  padding: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.announce-card__top{ display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.badge{
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: var(--fs-2xs);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .3rem .65rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
}
.badge--pinned{ background: var(--aurora-gradient); color: #050611; border: none; }
.badge svg{ width: 12px; height: 12px; vertical-align: -1px; }
.badge[data-cat="Urgent"]{ color: var(--aurora-magenta); border-color: color-mix(in srgb, var(--aurora-magenta) 45%, var(--glass-border)); }
.badge[data-cat="Academic"]{ color: var(--aurora-violet); border-color: color-mix(in srgb, var(--aurora-violet) 45%, var(--glass-border)); }
.badge[data-cat="Event"]{ color: var(--aurora-green); border-color: color-mix(in srgb, var(--aurora-green) 45%, var(--glass-border)); }
.announce-card time{ font-family: var(--font-mono); font-size: var(--fs-2xs); color: var(--ink-faint); }
.announce-card h3{ font-size: var(--fs-md); }
.announce-card p{ color: var(--ink-muted); font-size: var(--fs-sm); }

.timeline{
  position: relative;
  max-width: 780px;
  margin-inline: auto;
  padding-left: var(--sp-lg);
  border-left: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}
.timeline-item{ position: relative; padding: var(--sp-md); }
.timeline-item::before{
  content: "";
  position: absolute;
  left: calc(-1 * var(--sp-lg) - 5px);
  top: var(--sp-md);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--aurora-gradient);
  box-shadow: 0 0 0 4px var(--bg);
}
.timeline-item[data-pinned="true"]{ border-color: color-mix(in srgb, var(--aurora-violet) 40%, var(--glass-border)); }
.timeline-item__head{ display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; margin-bottom: .5rem; }

.filter-bar{
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: var(--sp-lg);
  justify-content: center;
}
.filter-chip{
  padding: .5rem 1.1rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--ink-muted);
  transition: all var(--dur-fast) var(--ease-out);
}
.filter-chip:hover{ color: var(--ink); }
.filter-chip.is-active{ background: var(--aurora-gradient); color: #050611; border-color: transparent; }

/* ---------------- Students ---------------- */
.toolbar{
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-lg);
}
.search-box{
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .75rem 1.1rem;
  min-width: 260px;
  flex: 1 1 260px;
}
.search-box svg{ width: 18px; height: 18px; color: var(--ink-faint); flex-shrink: 0; }
.search-box input{
  background: none;
  border: none;
  color: var(--ink);
  width: 100%;
  outline: none;
  font-size: var(--fs-sm);
}

.students-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--sp-sm);
}
.student-card{
  padding: var(--sp-md);
  text-align: center;
  cursor: pointer;
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med);
}
.student-card:hover{ transform: translateY(-6px); border-color: rgba(255,255,255,0.3); }
.student-card__photo{
  width: 92px; height: 92px;
  border-radius: 50%;
  margin: 0 auto var(--sp-xs);
  overflow: hidden;
  background: var(--aurora-gradient);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  color: #050611;
  border: 2px solid var(--glass-border);
}
.student-card__photo img{ width: 100%; height: 100%; object-fit: cover; }
.student-card h3{ font-size: var(--fs-md); }
.student-card__nick{ color: var(--ink-faint); font-size: var(--fs-xs); }
.student-card__meta{ margin-top: .5rem; font-size: var(--fs-xs); color: var(--ink-muted); display: flex; flex-direction: column; gap: .2rem; }
.student-card__adm{ font-family: var(--font-mono); font-size: var(--fs-2xs); color: var(--ink-faint); margin-top: .4rem; }

.modal-overlay{
  position: fixed; inset: 0;
  z-index: 120;
  background: var(--scrim);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-md);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-med) var(--ease-out), visibility var(--dur-med);
}
.modal-overlay.is-open{ opacity: 1; visibility: visible; }
.modal-card{
  max-width: 460px;
  width: 100%;
  padding: var(--sp-lg);
  text-align: center;
  transform: scale(.94);
  transition: transform var(--dur-med) var(--ease-out);
}
.modal-overlay.is-open .modal-card{ transform: scale(1); }
.modal-card__close{ position: absolute; top: var(--sp-sm); right: var(--sp-sm); }
.modal-card__photo{
  width: 120px; height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--sp-sm);
  overflow: hidden;
  background: var(--aurora-gradient);
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 700; color: #050611;
}
.modal-card__photo img{ width: 100%; height: 100%; object-fit: cover; }
.modal-card h3{ font-size: var(--fs-xl); }
.modal-card__nick{ color: var(--ink-faint); margin-bottom: var(--sp-sm); }
.modal-card__facts{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-sm);
  text-align: left;
  margin: var(--sp-sm) 0;
  padding: var(--sp-sm) 0;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}
.modal-card__facts dt{ font-size: var(--fs-2xs); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); }
.modal-card__facts dd{ margin: .2rem 0 0; font-size: var(--fs-sm); }
.modal-card__bio{ color: var(--ink-muted); font-size: var(--fs-sm); }

/* ---------------- Timetable ---------------- */
.timetable-scroll{ overflow-x: auto; padding-bottom: var(--sp-sm); }
.timetable{
  width: 100%;
  min-width: 760px;
  border-collapse: separate;
  border-spacing: 0 .5rem;
}
.timetable th{
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-faint);
  text-align: left;
  padding: 0 var(--sp-xs) .5rem;
}
.timetable td{
  vertical-align: top;
  padding: 0 var(--sp-xs);
}
.lesson-slot{
  padding: var(--sp-sm);
  min-height: 78px;
  display: flex;
  flex-direction: column;
  gap: .15rem;
  margin-bottom: .5rem;
}
.lesson-slot .subject{ font-weight: 700; font-size: var(--fs-sm); }
.lesson-slot .meta{ font-size: var(--fs-2xs); color: var(--ink-muted); font-family: var(--font-mono); }
.lesson-slot.is-now{
  border-color: var(--aurora-green);
  box-shadow: 0 0 0 1px var(--aurora-green), 0 0 26px -6px var(--aurora-green);
}
.lesson-slot.is-now .subject{ color: var(--aurora-green); }
.time-col{ font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-faint); white-space: nowrap; padding-top: var(--sp-sm); }

/* ---------------- Assignments ---------------- */
.assignments-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--sp-sm);
}
.assignment-card{ padding: var(--sp-md); display: flex; flex-direction: column; gap: .6rem; }
.assignment-card__top{ display: flex; justify-content: space-between; align-items: flex-start; gap: .5rem; }
.assignment-card h3{ font-size: var(--fs-md); }
.assignment-card .subject-tag{ font-size: var(--fs-xs); color: var(--ink-muted); }
.priority-dot{ display: inline-flex; align-items: center; gap: .35rem; font-size: var(--fs-2xs); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.priority-dot::before{ content: ""; width: 8px; height: 8px; border-radius: 50%; }
.priority-dot[data-p="High"]::before{ background: var(--aurora-magenta); }
.priority-dot[data-p="Medium"]::before{ background: var(--aurora-violet); }
.priority-dot[data-p="Low"]::before{ background: var(--aurora-green); }
.progress-track{ height: 6px; border-radius: 999px; background: var(--glass-border); overflow: hidden; }
.progress-fill{ height: 100%; border-radius: 999px; background: var(--aurora-gradient); transition: width .8s var(--ease-out); }
.assignment-card__foot{ display: flex; justify-content: space-between; align-items: center; font-size: var(--fs-xs); color: var(--ink-muted); }
.status-tag{ padding: .25rem .65rem; border-radius: var(--r-pill); border: 1px solid var(--glass-border); font-size: var(--fs-2xs); font-weight: 700; }
.status-tag[data-s="Completed"]{ color: var(--aurora-green); }
.status-tag[data-s="Overdue"]{ color: var(--aurora-magenta); }

/* ---------------- Gallery ---------------- */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--sp-sm);
}
.gallery-item{
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  border: 1px solid var(--glass-border);
}
.gallery-item img{ width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease-out); }
.gallery-item:hover img{ transform: scale(1.08); }
.gallery-item__overlay{
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(3,4,10,0.85), transparent 55%);
  display: flex; align-items: flex-end;
  padding: var(--sp-sm);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease-out);
}
.gallery-item:hover .gallery-item__overlay{ opacity: 1; }
.gallery-item__overlay span{ font-size: var(--fs-xs); font-weight: 600; color: #fff; }

.lightbox{
  position: fixed; inset: 0; z-index: 150;
  background: rgba(2,2,6,0.94);
  display: flex; align-items: center; justify-content: center;
  padding: var(--sp-lg);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-med) var(--ease-out), visibility var(--dur-med);
}
.lightbox.is-open{ opacity: 1; visibility: visible; }
.lightbox__figure{ max-width: 90vw; max-height: 82vh; text-align: center; }
.lightbox__figure img{ max-width: 90vw; max-height: 72vh; border-radius: var(--r-sm); margin-inline: auto; }
.lightbox__caption{ color: var(--ink-muted); margin-top: var(--sp-sm); font-size: var(--fs-sm); }
.lightbox__close{ position: absolute; top: var(--sp-md); right: var(--sp-md); }
.lightbox__nav{ position: absolute; top: 50%; transform: translateY(-50%); }
.lightbox__nav--prev{ left: var(--sp-md); }
.lightbox__nav--next{ right: var(--sp-md); }

/* ---------------- Events ---------------- */
.events-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-sm);
}
.event-card{ padding: var(--sp-md); display: flex; flex-direction: column; gap: .7rem; }
.event-card h3{ font-size: var(--fs-lg); }
.event-card__meta{ display: flex; flex-wrap: wrap; gap: .8rem; font-size: var(--fs-xs); color: var(--ink-muted); }
.event-card__meta span{ display: inline-flex; align-items: center; gap: .35rem; }
.event-card__meta svg{ width: 14px; height: 14px; }
.countdown{ display: flex; gap: .5rem; margin-top: .3rem; }
.countdown__unit{ flex: 1; text-align: center; padding: .55rem .3rem; border-radius: var(--r-sm); background: var(--glass-bg); border: 1px solid var(--glass-border); }
.countdown__unit strong{ display: block; font-family: var(--font-mono); font-size: var(--fs-lg); }
.countdown__unit span{ font-size: 0.62rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); }
.event-card--past{ opacity: .55; }

/* ---------------- Contact ---------------- */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
  align-items: start;
}
.teacher-list{ display: flex; flex-direction: column; gap: var(--sp-sm); }
.teacher-card{ display: flex; align-items: center; gap: var(--sp-sm); padding: var(--sp-sm) var(--sp-md); }
.teacher-card__photo{
  width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0;
  overflow: hidden; background: var(--aurora-gradient);
  display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; color: #050611;
}
.teacher-card__photo img{ width: 100%; height: 100%; object-fit: cover; }
.teacher-card h4{ font-size: var(--fs-sm); }
.teacher-card p{ font-size: var(--fs-xs); color: var(--ink-muted); }
.map-embed{ width: 100%; aspect-ratio: 16/10; border-radius: var(--r-md); border: 1px solid var(--glass-border); overflow: hidden; }
.map-placeholder{
  width: 100%; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .5rem; color: var(--ink-faint); text-align: center; padding: var(--sp-md);
}
.map-placeholder svg{ width: 32px; height: 32px; }

/* ---------------- 404 ---------------- */
.notfound{
  min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: var(--sp-lg);
}
.notfound__code{
  font-family: var(--font-display);
  font-size: clamp(4rem, 16vw, 9rem);
  font-weight: 700;
  background: var(--aurora-gradient);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 900px){
  .stats-grid{ grid-template-columns: repeat(2, 1fr); }
  .tiles-grid{ grid-template-columns: repeat(2, 1fr); }
  .announce-grid{ grid-template-columns: repeat(2, 1fr); }
  .contact-grid{ grid-template-columns: 1fr; }
  .readout{ flex-direction: column; gap: var(--sp-sm); }
  .readout__divider{ width: 60%; height: 1px; }
}
@media (max-width: 620px){
  .stats-grid{ grid-template-columns: 1fr 1fr; }
  .tiles-grid{ grid-template-columns: 1fr; }
  .announce-grid{ grid-template-columns: 1fr; }
  .modal-card__facts{ grid-template-columns: 1fr; }
  .countdown{ flex-wrap: wrap; }
}