/* ═══════════════════════════
   RESET & DESIGN TOKENS
═══════════════════════════ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --or: #ff6b00;
  --or-lo: rgba(255, 107, 0, 0.1);
  --bk: #090909;
  --dk: #0f0f0f;
  --dkr: #0b0b0b;
  --tx: #e0e0e0;
  --txd: #585858;
  --m1: "Courier Prime", monospace;
  --m2: "Share Tech Mono", monospace;
  --hh: 68px;
  --pad: clamp(14px, 5vw, 72px);
  --c-slides: #64a0ff;
  --c-notes: #42c88c;
  --c-quest: #dc64ff;
  --c-lab: #ff5858;
  --c-senior: #ffc83c;
  --c-books: #ff6b00;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bk);
  color: var(--tx);
  font-family: var(--m1);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--or);
  outline-offset: 3px;
}

/* Scanlines */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9000;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.018) 2px,
    rgba(0, 0, 0, 0.018) 4px
  );
}

/* Grid bg */
.gbg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 107, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 0, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}

.skip {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 9999;
  background: var(--or);
  color: #000;
  font-family: var(--m2);
  font-size: 11px;
  letter-spacing: 2px;
  padding: 8px 20px;
  text-decoration: none;
  border-radius: 2px;
  transition: top 0.2s;
}
.skip:focus {
  top: 14px;
}

/* ══════ HEADER ══════ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 600;
  height: var(--hh);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 0 clamp(12px, 3vw, 32px);
  gap: clamp(8px, 2vw, 18px);
  background: rgba(9, 9, 9, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 107, 0, 0.18);
  transition: box-shadow 0.3s;
}
.hd-ju {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.ju-box {
  width: 44px;
  height: 44px;
  border: 2px solid var(--or);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}
.ju-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
  display: block;
}
.ju-lbl {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--txd);
  text-transform: uppercase;
  line-height: 1.55;
}
.ju-lbl strong {
  display: block;
  color: var(--tx);
  font-size: 11px;
}

nav.desk {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex-wrap: wrap;
}
nav.desk a {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--txd);
  text-decoration: none;
  padding: 6px 11px;
  border-radius: 2px;
  transition:
    color 0.2s,
    background 0.2s;
  white-space: nowrap;
}
nav.desk a:hover {
  color: var(--or);
  background: var(--or-lo);
}
nav.desk a.cur {
  color: var(--or);
}

.hd-bt {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-direction: row-reverse;
  text-decoration: none;
  flex-shrink: 0;
}
.bt-box {
  width: 44px;
  height: 44px;
  border: 2px solid var(--or);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}
.bt-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
  display: block;
}
.bt-lbl {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--txd);
  text-align: right;
  line-height: 1.55;
  text-transform: uppercase;
}
.bt-lbl strong {
  display: block;
  color: var(--or);
  font-size: 13px;
  letter-spacing: 3px;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
  flex-shrink: 0;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--or);
  border-radius: 1px;
  transition: all 0.3s;
}
.burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

nav.mob {
  display: none;
  position: fixed;
  top: var(--hh);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(9, 9, 9, 0.97);
  backdrop-filter: blur(24px);
  z-index: 490;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
nav.mob.open {
  display: flex;
}
nav.mob a {
  font-family: var(--m2);
  font-size: 20px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--txd);
  text-decoration: none;
  padding: 14px 32px;
  width: 100%;
  text-align: center;
  transition: color 0.2s;
}
nav.mob a:hover {
  color: var(--or);
}

/* ══════════════════════════════════════
   AUTH GATE
══════════════════════════════════════ */
#auth-gate {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--hh) + 32px) var(--pad) 60px;
  text-align: center;
}
.ag-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 107, 0, 0.06) 0%,
    transparent 65%
  );
  pointer-events: none;
}
.ag-lock {
  font-size: 72px;
  margin-bottom: 28px;
  animation: lockglow 3s ease-in-out infinite;
}
@keyframes lockglow {
  0%,
  100% {
    filter: drop-shadow(0 0 0px rgba(255, 107, 0, 0));
  }
  50% {
    filter: drop-shadow(0 0 24px rgba(255, 107, 0, 0.6));
  }
}
.ag-tag {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.ag-tag::before,
.ag-tag::after {
  content: "//";
  opacity: 0.4;
}
.ag-h {
  font-family: var(--m2);
  font-size: clamp(30px, 7vw, 68px);
  color: #fff;
  line-height: 0.92;
  letter-spacing: -1px;
  margin-bottom: 18px;
}
.ag-h em {
  font-style: normal;
  color: var(--or);
}
.ag-sub {
  font-family: var(--m1);
  font-size: 15px;
  color: var(--txd);
  line-height: 1.9;
  max-width: 480px;
  margin: 0 auto 48px;
}
.ag-sub strong {
  color: var(--tx);
}

.ag-btn-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
}
.g-signin-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: #ffffff;
  color: #111;
  font-family: var(--m2);
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 16px 36px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  transition:
    opacity 0.2s,
    transform 0.1s;
}
.g-signin-btn:hover {
  opacity: 0.92;
  transform: translateY(-2px);
}
.g-signin-btn:active {
  transform: translateY(0);
}
.g-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ag-hint {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--txd);
  line-height: 1.8;
}
.ag-hint span {
  display: block;
  color: rgba(255, 107, 0, 0.6);
}

/* Roster grid */
.ag-roster-wrap {
  width: 100%;
  max-width: 680px;
  margin: 40px auto 0;
  border: 1px solid rgba(255, 107, 0, 0.12);
  border-radius: 6px;
  background: rgba(255, 107, 0, 0.02);
  overflow: hidden;
}
.ag-roster-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(255, 107, 0, 0.1);
}
.ag-roster-title {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--or);
  opacity: 0.7;
}
.ag-roster-count {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--txd);
}
.ag-roster-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 16px 18px;
}
.ag-pill {
  width: 42px;
  height: 32px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  cursor: default;
  transition:
    background 0.2s,
    border-color 0.2s,
    transform 0.15s;
}
.ag-pill:hover {
  background: rgba(255, 107, 0, 0.08);
  border-color: rgba(255, 107, 0, 0.25);
  transform: translateY(-1px);
}
.ag-pill--me {
  background: rgba(255, 107, 0, 0.18) !important;
  border-color: rgba(255, 107, 0, 0.6) !important;
  transform: scale(1.08) !important;
  box-shadow: 0 0 10px rgba(255, 107, 0, 0.3);
}
.ag-pill--me .ag-pill-num {
  color: #ff6b00 !important;
  font-weight: 700;
}
.ag-pill-num {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 0.5px;
  color: var(--txd);
  line-height: 1;
  pointer-events: none;
}
.ag-roster-note {
  padding: 10px 18px 12px;
  font-family: var(--m2);
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--txd);
  opacity: 0.5;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

/* Error box */
.ag-error {
  display: none;
  background: rgba(255, 68, 68, 0.08);
  border: 1px solid rgba(255, 68, 68, 0.3);
  border-radius: 4px;
  padding: 18px 24px;
  max-width: 480px;
  margin: 0 auto 20px;
  text-align: left;
}
.ag-error.show {
  display: block;
}
/* ══════ AUTH GATE SPINNER ══════ */
#ag-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 28px 0 8px;
}
.ags-ring {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255, 107, 0, 0.15);
  border-top-color: var(--or);
  border-radius: 50%;
  animation: ags-spin 0.8s linear infinite;
}
@keyframes ags-spin {
  to {
    transform: rotate(360deg);
  }
}
.ags-txt {
  font-family: var(--m2);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--txd);
}
.ae-title {
  font-family: var(--m2);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #ff5858;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ae-body {
  font-family: var(--m1);
  font-size: 13px;
  color: var(--txd);
  line-height: 1.7;
}
.ae-body strong {
  color: var(--tx);
}

/* ══════════════════════════════════════
   RESOURCE PORTAL
══════════════════════════════════════ */
#resource-portal {
  display: none;
}
#resource-portal.show {
  display: block;
}

/* Banner */
.rp-banner {
  position: relative;
  z-index: 1;
  padding: calc(var(--hh) + 44px) var(--pad) 36px;
  background: var(--dkr);
  border-bottom: 1px solid rgba(255, 107, 0, 0.1);
  overflow: hidden;
}
.rp-banner::after {
  content: "DRIVE";
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--m2);
  font-size: clamp(80px, 18vw, 200px);
  color: rgba(255, 107, 0, 0.025);
  letter-spacing: -4px;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  line-height: 1;
}
.rp-in {
  max-width: 1300px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.rp-eye {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: up 0.6s 0.05s forwards;
}
.rp-eye::before {
  content: "//";
  opacity: 0.4;
}
.rp-h {
  font-family: var(--m2);
  font-size: clamp(28px, 6vw, 64px);
  line-height: 0.92;
  color: #fff;
  letter-spacing: -1px;
  opacity: 0;
  animation: up 0.7s 0.15s forwards;
}
.rp-h em {
  font-style: normal;
  color: var(--or);
}
.rp-sub {
  font-family: var(--m1);
  font-size: 14px;
  color: var(--txd);
  margin-top: 10px;
  opacity: 0;
  animation: up 0.7s 0.25s forwards;
}
@keyframes up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* User pill */
.rp-user {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 107, 0, 0.06);
  border: 1px solid rgba(255, 107, 0, 0.18);
  border-radius: 4px;
  padding: 10px 16px;
  flex-shrink: 0;
  opacity: 0;
  animation: up 0.7s 0.35s forwards;
}
.rp-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(255, 107, 0, 0.4);
  background: rgba(255, 107, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--m2);
  font-size: 14px;
  font-weight: 700;
  color: var(--or);
  flex-shrink: 0;
  overflow: hidden;
}
.rp-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.rp-user-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.rp-user-name {
  font-family: var(--m2);
  font-size: 11px;
  color: #fff;
  letter-spacing: 0.5px;
}
.rp-user-email {
  font-family: var(--m2);
  font-size: 9.5px;
  color: var(--txd);
  letter-spacing: 0.5px;
}
.rp-signout {
  font-family: var(--m2);
  font-size: 8.5px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--txd);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 5px 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.rp-signout:hover {
  color: var(--or);
  border-color: rgba(255, 107, 0, 0.3);
}

/* Filter bar */
.rp-filterbar {
  position: sticky;
  top: var(--hh);
  z-index: 200;
  background: rgba(9, 9, 9, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 107, 0, 0.1);
}
.rfb-in {
  max-width: 1300px;
  margin: 0 auto;
  padding: 12px var(--pad);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.rsrch-wrap {
  position: relative;
  flex: 1;
  min-width: 180px;
}
.rsrch-ico {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  opacity: 0.4;
  pointer-events: none;
}
input.rsrch {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 107, 0, 0.15);
  border-radius: 3px;
  font-family: var(--m2);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--tx);
  padding: 9px 12px 9px 33px;
  outline: none;
  transition: border-color 0.2s;
}
input.rsrch::placeholder {
  color: var(--txd);
}
input.rsrch:focus {
  border-color: rgba(255, 107, 0, 0.45);
}
.rtag {
  font-family: var(--m2);
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--txd);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.09);
  padding: 7px 14px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.rtag:hover {
  color: var(--or);
  border-color: rgba(255, 107, 0, 0.3);
}
.rtag.on {
  color: #000;
  border-color: transparent;
}
.rtag[data-f="all"].on {
  background: var(--or);
}
.rtag[data-f="slides"].on {
  background: var(--c-slides);
}
.rtag[data-f="notes"].on {
  background: var(--c-notes);
}
.rtag[data-f="quest"].on {
  background: var(--c-quest);
}
.rtag[data-f="lab"].on {
  background: var(--c-lab);
}
.rtag[data-f="senior"].on {
  background: var(--c-senior);
}
.rtag[data-f="books"].on {
  background: var(--c-books);
}
.rcount {
  font-family: var(--m2);
  font-size: 10px;
  color: var(--txd);
  margin-left: auto;
  white-space: nowrap;
}

/* Main area */
.rp-main {
  position: relative;
  z-index: 1;
  background: var(--bk);
}
.rp-wrap {
  max-width: 1300px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 64px) var(--pad);
}

.rsh {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: clamp(20px, 3.5vw, 36px);
  padding-top: clamp(32px, 5vw, 56px);
}
.rsh:first-child {
  padding-top: 0;
}
.rsh-tag {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--or);
  white-space: nowrap;
}
.rsh-ln {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 107, 0, 0.25), transparent);
}

/* Course accordions */
.course-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.course-block {
  background: var(--dkr);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
}
.course-block.hidden {
  display: none;
}
.cb-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  transition: background 0.2s;
  user-select: none;
  border: none;
  width: 100%;
  text-align: left;
  background: transparent;
}
.cb-head:hover {
  background: rgba(255, 107, 0, 0.03);
}
.cb-code {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 2px;
  padding: 4px 12px;
  border-radius: 2px;
  font-weight: 700;
  flex-shrink: 0;
}
.cb-name {
  font-family: var(--m2);
  font-size: clamp(13px, 2vw, 15px);
  color: #fff;
  flex: 1;
  text-align: left;
  letter-spacing: 0.3px;
}
.cb-meta {
  font-family: var(--m2);
  font-size: 10px;
  color: var(--txd);
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.cb-count {
  font-family: var(--m2);
  font-size: 10px;
  color: var(--txd);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3px 10px;
  border-radius: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}
.cb-chevron {
  font-family: var(--m2);
  font-size: 12px;
  color: var(--or);
  flex-shrink: 0;
  transition: transform 0.3s;
  user-select: none;
}
.course-block.open .cb-chevron {
  transform: rotate(90deg);
}
.cb-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.course-block.open .cb-body {
  max-height: 3000px;
}
.cb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2px;
  padding: 0 2px 2px;
  background: rgba(255, 255, 255, 0.03);
}

/* Resource cards */
.rcard {
  background: var(--dkr);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  text-decoration: none;
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}
.rcard::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  transition: opacity 0.25s;
  opacity: 0;
}
.rcard:hover {
  background: rgba(255, 107, 0, 0.03);
}
.rcard:hover::before {
  opacity: 1;
}
.rcard.hidden {
  display: none;
}
.rc-ico {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.03);
}
.rc-body {
  flex: 1;
  min-width: 0;
}
.rc-name {
  font-family: var(--m2);
  font-size: 11.5px;
  color: #fff;
  letter-spacing: 0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.rc-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.rc-type {
  font-family: var(--m2);
  font-size: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 2px;
  border: 1px solid;
  white-space: nowrap;
}
.rc-size {
  font-family: var(--m2);
  font-size: 9px;
  color: var(--txd);
  letter-spacing: 0.5px;
}
.rc-new {
  font-family: var(--m2);
  font-size: 8px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #42c88c;
  border: 1px solid rgba(66, 200, 140, 0.3);
  padding: 2px 7px;
  border-radius: 2px;
  background: rgba(66, 200, 140, 0.07);
  animation: blink 2s step-end infinite;
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}
.rc-arrow {
  color: var(--or);
  font-size: 14px;
  flex-shrink: 0;
  opacity: 0.6;
  transition:
    opacity 0.2s,
    transform 0.2s;
}
.rcard:hover .rc-arrow {
  opacity: 1;
  transform: translateX(3px);
}

/* Senior resources */
.senior-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2px;
  background: rgba(255, 200, 60, 0.05);
  border: 1px solid rgba(255, 200, 60, 0.1);
  border-radius: 4px;
  overflow: hidden;
}
.scard {
  background: var(--dkr);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}
.scard::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-senior), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}
.scard:hover {
  background: rgba(255, 200, 60, 0.04);
}
.scard:hover::before {
  transform: scaleX(1);
}
.scard.hidden {
  display: none;
}
.sc-batch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--m2);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-senior);
  border: 1px solid rgba(255, 200, 60, 0.25);
  padding: 3px 10px;
  border-radius: 2px;
  background: rgba(255, 200, 60, 0.07);
  width: fit-content;
}
.sc-title {
  font-family: var(--m2);
  font-size: 13px;
  color: #fff;
  letter-spacing: 0.3px;
  line-height: 1.4;
}
.sc-desc {
  font-family: var(--m1);
  font-size: 12.5px;
  color: var(--txd);
  line-height: 1.7;
}
.sc-files {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sc-file {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--m2);
  font-size: 10px;
  color: var(--txd);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.5px;
}
.sc-file:hover {
  color: var(--c-senior);
}
.sc-file-ico {
  font-size: 12px;
  flex-shrink: 0;
}

/* Empty state */
.empty-state {
  padding: 60px 20px;
  text-align: center;
  font-family: var(--m2);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--txd);
}

/* ══════ FOOTER ══════ */
footer {
  position: relative;
  z-index: 1;
  background: var(--dkr);
  border-top: 1px solid rgba(255, 107, 0, 0.15);
  padding: clamp(36px, 5.5vw, 70px) var(--pad) 28px;
}
.f-contact {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}
.f-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: var(--txd);
  transition: all 0.2s;
}
.f-icon svg {
  width: 18px;
  height: 18px;
}
.f-icon:hover {
  border-color: var(--or);
  color: var(--or);
  transform: translateY(-2px);
}
.fg {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(28px, 4.5vw, 64px);
  max-width: 1300px;
  margin: 0 auto 44px;
}
.fb-n {
  font-family: var(--m2);
  font-size: 22px;
  color: var(--or);
  letter-spacing: 5px;
  margin-bottom: 10px;
}
.fb-i {
  font-size: 11.5px;
  color: var(--txd);
  line-height: 1.9;
}
.fct {
  font-family: var(--m2);
  font-size: 9px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 16px;
}
.fl {
  list-style: none;
}
.fl li {
  margin-bottom: 9px;
}
.fl a {
  font-size: 12px;
  color: var(--txd);
  text-decoration: none;
  transition: color 0.2s;
}
.fl a:hover {
  color: var(--or);
}
.fbot {
  max-width: 1300px;
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 107, 0, 0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.fcpy {
  font-family: var(--m2);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--txd);
}
.fcpy span {
  color: var(--or);
}

/* ══════ CLASS INFO CARDS ══════ */
.classinfo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin-bottom: 8px;
}
.ci-card {
  background: var(--dkr);
  border: 1px solid rgba(255, 107, 0, 0.14);
  border-radius: 6px;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}
.ci-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--or), transparent);
}
.ci-card:hover {
  border-color: rgba(255, 107, 0, 0.32);
}
.ci-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
}
.ci-card-ico {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  background: rgba(255, 107, 0, 0.1);
  border: 1px solid rgba(255, 107, 0, 0.22);
}
.ci-card-label {
  font-family: var(--m2);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--txd);
  margin-bottom: 3px;
}
.ci-card-course {
  font-family: var(--m2);
  font-size: 11px;
  color: var(--or);
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.ci-card-name {
  font-family: var(--m1);
  font-size: 13px;
  color: var(--tx);
  margin-bottom: 4px;
}
.ci-card-value {
  font-family: var(--m2);
  font-size: 16px;
  color: #fff;
  letter-spacing: 2px;
  word-break: break-all;
}
.ci-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.ci-copy-btn {
  font-family: var(--m2);
  font-size: 8.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--txd);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
  padding: 6px 14px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
}
.ci-copy-btn:hover {
  color: var(--or);
  border-color: rgba(255, 107, 0, 0.3);
}
.ci-copy-btn.copied {
  color: #42c88c;
  border-color: rgba(66, 200, 140, 0.3);
}
.ci-open-btn {
  font-family: var(--m2);
  font-size: 8.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #000;
  background: var(--or);
  border: none;
  padding: 6px 14px;
  border-radius: 2px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: opacity 0.2s;
}
.ci-open-btn:hover {
  opacity: 0.82;
}
/* ══════ RESPONSIVE ══════ */
@media (max-width: 1100px) {
  nav.desk a {
    font-size: 9px;
    padding: 5px 8px;
    letter-spacing: 1px;
  }
  .ju-lbl,
  .bt-lbl {
    display: none;
  }
}
@media (max-width: 860px) {
  nav.desk {
    display: none;
  }
  .burger {
    display: flex;
  }
  .fg {
    grid-template-columns: 1fr 1fr;
  }
  .cb-meta {
    display: none;
  }
}
@media (max-width: 560px) {
  .fg {
    grid-template-columns: 1fr;
  }
  .fbot {
    flex-direction: column;
    align-items: flex-start;
  }
  .rfb-in {
    gap: 7px;
  }
  .rcount {
    width: 100%;
    margin-left: 0;
  }
  .cb-grid {
    grid-template-columns: 1fr;
  }
  .senior-grid {
    grid-template-columns: 1fr;
  }
}