/* ============================================================================
   TAISEI DOJO — Student Portal design system (HTML mockup)
   Colours & type reverse-engineered from taiseidojo.com:
     brand red  #E91A2F / dark red #C91729
     display    Space Grotesk   ·   body Inter   ·   kanji Noto Sans JP
     light, high-contrast martial-arts aesthetic (white + red + black)
   This file is meant to become a Blade layout stylesheet in the Laravel port.
   ========================================================================== */

/* ---- 1. Tokens -------------------------------------------------------- */
:root {
  --td-red:        #e91a2f;
  --td-red-dark:   #c91729;
  --td-red-soft:   rgba(233, 26, 47, .14);

  --td-bg:         #ffffff;   /* page */
  --td-bg-2:       #f6f6f8;   /* deep panel */
  --td-surface:    #ffffff;   /* card */
  --td-surface-2:  #f2f2f5;   /* nested field / hover */
  --td-line:       rgba(17,17,20,.12);
  --td-line-soft:  rgba(17,17,20,.07);

  --td-ink:        #1a1a1f;   /* primary text */
  --td-ink-dim:    #55555e;   /* secondary text */
  --td-ink-mute:   #8a8a94;   /* muted / captions */

  --gold:          #b3821e;   /* 2nd radar accent (internal) */
  --gold-soft:     rgba(179,130,30,.15);

  /* real belt colours — used as the meaning of each video group */
  --belt-white:    #ededf0;
  --belt-yellow:   #f4c542;
  --belt-green:    #3fa65a;
  --belt-blue:     #3e7fc1;
  --belt-brown:    #8a5a2b;

  --radius:        14px;
  --radius-sm:     10px;
  --shadow:        0 12px 32px rgba(17,17,20,.08);
  --font-display:  "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body:     "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-kanji:    "Noto Sans JP", "Noto Sans KR", sans-serif;
  --maxw:          1120px;
}

/* ---- 2. Base ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--td-bg);
  color: var(--td-ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.1;
  margin: 0;
}
.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .28em;
  font-size: .68rem;
  font-weight: 600;
  color: var(--td-red);
}
.muted { color: var(--td-ink-mute); }
.dim   { color: var(--td-ink-dim); }

/* red diagonal accent used across the kit */
.accent-rule {
  height: 3px; width: 46px; border: 0; margin: 0;
  background: var(--td-red);
  transform: skewX(-24deg);
}

/* ---- 3. Layout -------------------------------------------------------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }
.page { min-height: 100vh; display: flex; flex-direction: column; }
.stack > * + * { margin-top: var(--gap, 1rem); }

/* kanji watermark that sits behind hero/login content */
.kanji-watermark {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  display: grid; place-items: center; overflow: hidden;
}
.kanji-watermark span {
  font-family: var(--font-kanji);
  font-size: min(74vh, 60vw);
  font-weight: 700;
  color: #0b0b0d;
  opacity: .035;
  line-height: 1;
  user-select: none;
}

/* ---- 4. Top bar ------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--td-line);
}
.topbar__inner {
  height: 64px; display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 38px; height: 38px; flex: none; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--td-red);
  font-family: var(--font-kanji); font-weight: 700; color: #fff; font-size: 20px;
  box-shadow: 0 6px 16px rgba(233,26,47,.4);
}
.brand__name {
  font-family: var(--font-display); font-weight: 700; text-transform: uppercase;
  letter-spacing: .18em; font-size: .92rem;
}
.brand__name small { display:block; font-size:.58rem; letter-spacing:.32em; color:var(--td-ink-mute); font-weight:500; }
.topnav { display: flex; align-items: center; gap: 26px; }
.topnav a { font-size: .82rem; color: var(--td-ink-dim); transition: color .15s; }
.topnav a:hover, .topnav a.is-active { color: var(--td-ink); }
.topnav a.is-active { position: relative; }
.topnav a.is-active::after {
  content:""; position:absolute; left:0; right:0; bottom:-22px; height:2px; background:var(--td-red);
}

/* ---- 5. Buttons ------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  font-size: .78rem;
  padding: 12px 20px; border-radius: 10px; border: 1px solid transparent;
  transition: transform .12s, background .15s, border-color .15s, color .15s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--td-red); color: #fff; }
.btn--primary:hover { background: var(--td-red-dark); }
.btn--ghost { background: transparent; color: var(--td-ink); border-color: var(--td-line); }
.btn--ghost:hover { border-color: var(--td-ink-dim); background: var(--td-surface-2); }
.btn--block { width: 100%; padding-block: 14px; }
.btn--sm { padding: 8px 14px; font-size: .7rem; }

/* ---- 6. Cards --------------------------------------------------------- */
.card {
  background: var(--td-surface);
  border: 1px solid var(--td-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card__pad { padding: clamp(18px, 3vw, 28px); }

/* ---- 7. Login --------------------------------------------------------- */
.login-wrap { flex: 1; display: grid; place-items: center; padding: 40px 20px; position: relative; z-index: 1; }
.login-card { width: 100%; max-width: 360px; text-align: center; position: relative; }
.login-card .card__pad { padding: 34px 30px 30px; }
.login-lock {
  width: 56px; height: 56px; margin: 0 auto 16px;
  border-radius: 50%; display: grid; place-items: center;
  background: var(--td-red-soft); border: 1px solid rgba(233,26,47,.35);
  color: var(--td-red);
}
.login-title { font-size: 1.5rem; text-transform: uppercase; letter-spacing: .12em; }
.login-sub { color: var(--td-ink-dim); font-size: .86rem; margin-top: 4px; }
.login-help {
  margin-top: 20px; font-size: .78rem; color: var(--td-ink-mute);
  border-top: 1px solid var(--td-line-soft); padding-top: 16px;
}
.login-help a { color: var(--td-red); font-weight: 600; }

/* ---- 8. Form fields --------------------------------------------------- */
.field { text-align: left; margin-top: 14px; }
.field > label {
  display: block; font-size: .72rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--td-ink-dim); margin-bottom: 6px; font-weight: 600;
}
.field .req { color: var(--td-red); }
.input, .select, textarea.input {
  width: 100%; padding: 12px 14px; font-size: .92rem;
  color: var(--td-ink); background: var(--td-surface-2);
  border: 1px solid var(--td-line); border-radius: var(--radius-sm);
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
}
.input::placeholder { color: var(--td-ink-mute); }
.input:focus, .select:focus, textarea.input:focus {
  outline: none; border-color: var(--td-red);
  box-shadow: 0 0 0 3px var(--td-red-soft);
}
.input:disabled, .input[readonly] { opacity: .7; cursor: not-allowed; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2355555e' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 36px;
}
.field-hint { font-size: .72rem; color: var(--td-ink-mute); margin-top: 5px; }
.forgot { display: block; text-align: right; font-size: .76rem; color: var(--td-ink-dim); margin-top: 8px; }
.forgot:hover { color: var(--td-red); }
.lock-note {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: .68rem; color: var(--td-ink-mute); margin-top: 5px;
}

/* ---- 9. Profile header ------------------------------------------------ */
.profile-head { display: grid; grid-template-columns: auto 1fr; gap: 26px; align-items: center; }
.avatar {
  width: 116px; height: 116px; flex: none; border-radius: 16px; overflow: hidden;
  background: linear-gradient(140deg, #ececf0, #d9d9df);
  border: 1px solid var(--td-line); position: relative;
  display: grid; place-items: center;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar__initials { font-family: var(--font-display); font-size: 2.2rem; color: var(--td-ink-dim); font-weight: 700; }
.avatar__belt { position: absolute; left: 0; right: 0; bottom: 0; height: 10px; box-shadow: inset 0 1px 0 rgba(17,17,20,.14); }

.profile-name { font-size: clamp(1.5rem, 3vw, 2rem); text-transform: uppercase; letter-spacing: .04em; }
.profile-meta { display: flex; flex-wrap: wrap; gap: 8px 26px; margin-top: 12px; }
.meta-item { min-width: 0; }
.meta-item .k { font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--td-ink-mute); }
.meta-item .v { font-size: .95rem; font-weight: 600; margin-top: 2px; }

/* belt / rank chip */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px 5px 8px; border-radius: 999px;
  background: var(--td-surface-2); border: 1px solid var(--td-line);
  font-size: .8rem; font-weight: 600;
}
.chip .dot { width: 12px; height: 12px; border-radius: 50%; flex: none; box-shadow: 0 0 0 1px rgba(0,0,0,.35) inset; }

/* ---- 10. Section header ---------------------------------------------- */
.section { margin-top: 26px; }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section__title { font-size: 1.05rem; text-transform: uppercase; letter-spacing: .1em; }

/* ---- 11. Radar charts ------------------------------------------------- */
.radar-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.radar-panel { padding: 20px 20px 8px; }
.radar-panel h3 { font-size: .92rem; text-transform: uppercase; letter-spacing: .1em; }
.radar-panel .radar-key { font-size: .74rem; color: var(--td-ink-mute); margin-top: 2px; }
.radar-canvas-wrap { position: relative; width: 100%; height: 288px; margin-top: 6px; }
.radar-accent-ext { color: var(--td-red); }
.radar-accent-int { color: var(--gold); }

/* ---- 12. Video filter + groups --------------------------------------- */
.filter-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.filter-row .select { max-width: 260px; }
.filter-row .count { font-size: .78rem; color: var(--td-ink-mute); }

.kyu-group { margin-top: 22px; }
.kyu-group__head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.belt-swatch {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.14);
}
.kyu-group__title { font-family: var(--font-display); font-weight: 700; font-size: .96rem; text-transform: uppercase; letter-spacing: .08em; }
.kyu-group__sub { font-size: .72rem; color: var(--td-ink-mute); }

.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.video-card {
  background: var(--td-surface); border: 1px solid var(--td-line); border-radius: 12px;
  overflow: hidden; transition: transform .14s, border-color .14s;
}
.video-card:hover { transform: translateY(-3px); border-color: rgba(17,17,20,.28); }
.video-thumb {
  aspect-ratio: 16/9; position: relative; display: grid; place-items: center;
  background:
    radial-gradient(120% 100% at 30% 0%, rgba(233,26,47,.28), transparent 60%),
    linear-gradient(150deg, #26262d, #121216);
}
.video-thumb .play {
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(0,0,0,.5); border: 1px solid rgba(255,255,255,.4);
  display: grid; place-items: center; color: #fff; backdrop-filter: blur(2px);
}
.video-thumb .kyu-tag {
  position: absolute; top: 10px; left: 10px;
  font-family: var(--font-display); font-size: .64rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 6px;
  background: rgba(0,0,0,.6); border: 1px solid rgba(255,255,255,.18); color: #fff;
}
.video-thumb .dur {
  position: absolute; bottom: 10px; right: 10px;
  font-size: .68rem; padding: 2px 7px; border-radius: 5px;
  background: rgba(0,0,0,.72); color: #fff;
}
.video-card__body { padding: 12px 14px 14px; }
.video-card__title { font-size: .9rem; font-weight: 600; line-height: 1.3; }
.video-card__desc { font-size: .76rem; color: var(--td-ink-mute); margin-top: 4px; }

.empty-note { color: var(--td-ink-mute); font-size: .84rem; padding: 8px 0; }

/* ---- 13. Admin form --------------------------------------------------- */
.admin-banner {
  display: flex; align-items: center; gap: 10px;
  background: var(--td-red-soft); border: 1px solid rgba(233,26,47,.32);
  color: var(--td-red-dark); border-radius: 10px; padding: 12px 16px; font-size: .82rem;
}
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 22px; }
.form-grid .field { margin-top: 8px; }
.field-group-title {
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: .1em;
  font-size: .8rem; color: var(--td-ink-dim); margin: 22px 0 4px;
  display: flex; align-items: center; gap: 10px;
}
.field-group-title::after { content:""; flex:1; height:1px; background: var(--td-line-soft); }

/* score slider row */
.score-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 14px; margin-top: 12px; }
.score-row label { font-size: .84rem; }
.score-row .score-ctl { display: flex; align-items: center; gap: 12px; }
.score-row input[type=range] { width: 150px; accent-color: var(--td-red); }
.score-row .score-val {
  font-family: var(--font-display); font-weight: 700; min-width: 42px; text-align: center;
  background: var(--td-surface-2); border: 1px solid var(--td-line); border-radius: 8px; padding: 4px 0;
}
.tag-readonly {
  font-size: .62rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--gold); border: 1px solid rgba(179,130,30,.45); border-radius: 5px; padding: 1px 6px; margin-left: 6px;
}

/* ---- 14. Footer ------------------------------------------------------- */
.foot { border-top: 1px solid var(--td-line); margin-top: 40px; }
.foot__inner { padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--td-ink-mute); font-size: .76rem; }

/* ---- 15. Index / preview hub ----------------------------------------- */
.hub { flex: 1; display: flex; flex-direction: column; justify-content: center; position: relative; z-index: 1; padding: 60px 0; }
.hub-title { font-size: clamp(2.2rem, 6vw, 3.6rem); text-transform: uppercase; letter-spacing: .04em; }
.hub-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; margin-top: 34px; }
.hub-card { padding: 22px; display: flex; flex-direction: column; gap: 8px; transition: transform .14s, border-color .14s; }
.hub-card:hover { transform: translateY(-4px); border-color: var(--td-red); }
.hub-card h3 { font-size: 1.1rem; text-transform: uppercase; letter-spacing: .06em; }
.hub-card p { font-size: .84rem; color: var(--td-ink-dim); margin: 0; }
.hub-card .go { margin-top: auto; font-family: var(--font-display); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--td-red); }

.swatches { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.sw { display: flex; align-items: center; gap: 8px; font-size: .72rem; color: var(--td-ink-dim); }
.sw i { width: 20px; height: 20px; border-radius: 6px; box-shadow: inset 0 0 0 1px rgba(0,0,0,.14); }

/* ---- 16. Responsive --------------------------------------------------- */
@media (max-width: 860px) {
  .radar-grid { grid-template-columns: 1fr; }
  /* keep Log out reachable on mobile — only drop the in-page section links */
  .topnav { gap: 16px; }
  .topnav .nav-page { display: none; }
  .topnav a.is-active::after { display: none; }
}
@media (max-width: 640px) {
  .brand__name small { display: none; }
  .profile-head { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .profile-meta { justify-content: center; }
  .form-grid { grid-template-columns: 1fr; }
  .score-row input[type=range] { width: 110px; }
}