/* ================================================================
   teaching_staff.css  —  LNMS College Teaching Staff Page
   Follows the same design system as home.css & principals_list.css:
     · CSS variables (blue / green tokens)
     · Poppins + Playfair Display + DM Sans
     · Mini hero identical to principals_list.css
     · Staff card list replacing raw <table> + Repeater
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Playfair+Display:wght@700;800&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ── Design tokens ───────────────────────────────────────────── */
:root {
    --blue:        #1E3A8A;
    --blue-dark:   #162d6e;
    --blue-mid:    #2a4fa8;
    --blue-light:  #dbeafe;
    --green:       #22C55E;
    --green-dark:  #16a34a;
    --green-light: #dcfce7;
    --bg:          #F8FAFC;
    --card:        #ffffff;
    --text:        #0F172A;
    --text-muted:  #475569;
    --border:      #e2e8f0;
    --shadow-sm:   0 2px 10px rgba(15,23,42,.08);
    --shadow-md:   0 6px 24px rgba(15,23,42,.12);
    --shadow-lg:   0 16px 48px rgba(15,23,42,.18);
    --shadow-blue: 0 8px 28px rgba(30,58,138,.28);
    --r-sm:        8px;
    --r-md:        14px;
    --r-lg:        20px;
    --r-pill:      50px;
    --t:           0.3s ease;
    --font:        'Poppins', 'Noto Sans Devanagari', sans-serif;
}

/* ================================================================
   1. MINI HERO  —  identical to principals_list.css
   ================================================================ */
.pl-mini-hero {
    position: relative;
    width: 100%;
    height: 320px;
    min-height: 260px;
    overflow: hidden;
    background: linear-gradient(135deg, #0f172a 0%, #1E3A8A 55%, #2a4fa8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'DM Sans', sans-serif;
}

.pl-mini-hero__overlay {
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    opacity: 0.22; pointer-events: none; z-index: 1;
}

.pl-mini-hero__ring {
    position: absolute; border-radius: 50%; pointer-events: none; z-index: 2;
}
.pl-mini-hero__ring--lg {
    top: -90px; right: -90px; width: 340px; height: 340px;
    border: 64px solid rgba(30,58,138,.22);
}
.pl-mini-hero__ring--sm {
    bottom: -55px; left: -55px; width: 210px; height: 210px;
    border: 42px solid rgba(34,197,94,.10);
}

.pl-mini-hero__grid {
    position: absolute; inset: 0; z-index: 2; pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 48px 48px;
    animation: plGridDrift 18s linear infinite;
}
@keyframes plGridDrift {
    from { background-position: 0 0; }
    to   { background-position: 48px 48px; }
}

.pl-mini-hero__body {
    position: relative; z-index: 10; text-align: center; padding: 0 20px;
    display: flex; flex-direction: column; align-items: center; gap: 0;
}

.pl-mini-hero__breadcrumb {
    display: inline-flex; align-items: center; gap: 8px;
    margin-bottom: 18px; opacity: 0; transform: translateY(12px);
    animation: plFadeUp 0.6s cubic-bezier(0.22,1,0.36,1) 0.1s forwards;
}
.pl-mini-hero__bc-link {
    font-size: .78rem; font-weight: 500; color: rgba(255,255,255,.55);
    text-decoration: none; display: inline-flex; align-items: center; gap: 5px;
    transition: color 0.2s ease;
}
.pl-mini-hero__bc-link:hover { color: var(--green); text-decoration: none; }
.pl-mini-hero__bc-sep        { color: rgba(255,255,255,.25); font-size: .78rem; }
.pl-mini-hero__bc-current    { font-size: .78rem; font-weight: 600; color: rgba(255,255,255,.80); }

.pl-mini-hero__badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(34,197,94,.15); border: 1px solid rgba(34,197,94,.45);
    color: var(--green); font-size: .72rem; font-weight: 600;
    letter-spacing: .14em; text-transform: uppercase;
    padding: 5px 18px; border-radius: 50px; margin-bottom: 16px;
    opacity: 0; transform: translateY(14px);
    animation: plFadeUp 0.65s cubic-bezier(0.22,1,0.36,1) 0.25s forwards;
}
.pl-mini-hero__badge-dot {
    width: 6px; height: 6px; background: var(--green); border-radius: 50%;
    animation: plPulse 2s ease-in-out infinite;
}

.pl-mini-hero__heading {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; color: #fff;
    line-height: 1.12; letter-spacing: -.02em; margin: 0 0 12px;
    opacity: 0; transform: translateY(20px);
    animation: plFadeUp 0.7s cubic-bezier(0.22,1,0.36,1) 0.42s forwards;
}
.pl-mini-hero__heading em {
    font-style: normal; color: var(--green); position: relative;
}
.pl-mini-hero__heading em::after {
    content: ''; position: absolute; left: 0; bottom: -3px;
    width: 100%; height: 3px; background: var(--green); border-radius: 2px;
    transform-origin: left; transform: scaleX(0);
    animation: plUnderline 0.55s cubic-bezier(0.22,1,0.36,1) 1.1s forwards;
}

.pl-mini-hero__sub {
    color: rgba(255,255,255,.62); font-size: clamp(.85rem, 1.6vw, 1rem);
    font-weight: 300; max-width: 480px; line-height: 1.65; margin: 0;
    opacity: 0; transform: translateY(16px);
    animation: plFadeUp 0.7s cubic-bezier(0.22,1,0.36,1) 0.58s forwards;
}

@keyframes plFadeUp    { to { opacity: 1; transform: translateY(0); } }
@keyframes plUnderline { to { transform: scaleX(1); } }
@keyframes plPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: .5; transform: scale(.8); }
}

@media (max-width: 768px) {
    .pl-mini-hero           { height: 260px; min-height: 220px; }
    .pl-mini-hero__ring--lg { width: 200px; height: 200px; border-width: 40px; top: -60px; right: -60px; }
}
@media (max-width: 480px) {
    .pl-mini-hero      { height: 230px; }
    .pl-mini-hero__sub { display: none; }
}

/* ================================================================
   2. AOS ANIMATION SUPPORT
   ================================================================ */
[data-aos] {
    opacity: 0; transform: translateY(28px);
    transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1),
                transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
[data-aos].aos-animate { opacity: 1; transform: translateY(0); }

/* ================================================================
   3. SECTION SHELL
   ================================================================ */
.ts-area {
    background: var(--bg);
    padding: 90px 0 100px;
    position: relative;
    overflow: hidden;
}
.ts-area::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(30,58,138,.06) 1px, transparent 1px);
    background-size: 28px 28px; pointer-events: none; z-index: 0;
}
.ts-area .container { position: relative; z-index: 1; }

/* ================================================================
   4. SECTION TITLE
   ================================================================ */
.ts-eyebrow {
    display: inline-flex; align-items: center; gap: 7px;
    font-family: var(--font); font-size: .72rem; font-weight: 700;
    letter-spacing: .12em; text-transform: uppercase;
    color: var(--green); background: var(--green-light);
    padding: 5px 14px; border-radius: var(--r-pill); margin-bottom: 14px;
}
.ts-section-heading {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.75rem, 3.5vw, 2.6rem); font-weight: 800;
    color: var(--text); line-height: 1.2; letter-spacing: -.02em; margin: 0 0 14px;
}
.ts-section-sub {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(.92rem, 1.6vw, 1.05rem); font-weight: 400;
    color: var(--text-muted); max-width: 560px;
    margin: 0 auto 56px; line-height: 1.7;
}

/* ================================================================
   5. TIMELINE SPINE WRAPPER  (mirrors principals_list pattern)
   ================================================================ */
.ts-timeline-wrap {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-width: 900px;
    margin: 0 auto;
}

/* Vertical connecting line */
.ts-spine {
    position: absolute;
    top: 0; bottom: 0;
    left: 30px;              /* centres on the serial badge */
    width: 2px;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--blue-light) 6%,
        var(--blue-light) 94%,
        transparent 100%
    );
    z-index: 0;
}

/* ================================================================
   6. STAFF CARD  (one per Repeater item)
   ================================================================ */
.ts-card {
    display: flex;
    align-items: center;
    gap: 16px;
    position: relative;
    z-index: 1;
    /* stagger animation handled inline via style attribute */
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s cubic-bezier(0.22,1,0.36,1),
                transform 0.55s cubic-bezier(0.22,1,0.36,1);
}
.ts-card.ts-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Serial badge (circle on the spine) ─────────────────────── */
.ts-card__serial {
    flex-shrink: 0;
    width: 60px; height: 60px; border-radius: 50%;
    background: var(--card); border: 2px solid var(--blue-light);
    box-shadow: var(--shadow-sm);
    display: flex; align-items: center; justify-content: center;
    transition: background var(--t), border-color var(--t), box-shadow var(--t);
    z-index: 2;
}
.ts-card__serial span {
    font-family: 'Playfair Display', serif;
    font-size: 1rem; font-weight: 800; color: var(--blue);
    line-height: 1; transition: color var(--t);
}

/* ── Card body ──────────────────────────────────────────────── */
.ts-card__body {
    flex: 1; min-width: 0;
    display: flex; align-items: center; gap: 16px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--r-lg); padding: 18px 24px;
    box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
    transition: box-shadow var(--t), border-color var(--t), transform var(--t);
}

/* Left colour accent strip */
.ts-card__accent {
    position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
    background: linear-gradient(180deg, var(--blue) 0%, var(--green) 100%);
    border-radius: var(--r-lg) 0 0 var(--r-lg);
    transition: width var(--t);
}

/* Avatar circle */
.ts-card__avatar {
    flex-shrink: 0; width: 46px; height: 46px; border-radius: 50%;
    background: var(--blue-light);
    display: flex; align-items: center; justify-content: center;
    color: var(--blue); font-size: 1.15rem;
    transition: background var(--t), color var(--t);
}

/* Text block */
.ts-card__info {
    flex: 1; min-width: 0;
    display: flex; flex-direction: column; gap: 3px;
}
.ts-card__name {
    font-family: var(--font);
    font-size: clamp(.95rem, 1.8vw, 1.05rem); font-weight: 700;
    color: var(--text); margin: 0; line-height: 1.3;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    transition: color var(--t);
}
.ts-card__designation {
    font-family: 'DM Sans', sans-serif;
    font-size: .80rem; font-weight: 500;
    color: var(--text-muted); letter-spacing: .04em;
    text-transform: uppercase; white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis;
}

/* Award badge — decorative right end */
.ts-card__badge {
    flex-shrink: 0; color: var(--border); font-size: 1.3rem;
    transition: color var(--t), transform var(--t); line-height: 1;
}

/* ── HOVER ───────────────────────────────────────────────────── */
.ts-card:hover .ts-card__serial {
    background: var(--blue); border-color: var(--blue);
    box-shadow: var(--shadow-blue);
}
.ts-card:hover .ts-card__serial span { color: #fff; }

.ts-card:hover .ts-card__body {
    box-shadow: var(--shadow-md);
    border-color: var(--blue-light);
    transform: translateX(4px);
}
.ts-card:hover .ts-card__accent  { width: 6px; }
.ts-card:hover .ts-card__avatar  { background: var(--blue); color: #fff; }
.ts-card:hover .ts-card__name    { color: var(--blue); }
.ts-card:hover .ts-card__badge   { color: var(--green); transform: rotate(-8deg) scale(1.15); }

/* ── Alternate (even) cards: green accent tint ──────────────── */
.ts-card:nth-child(even) .ts-card__accent {
    background: linear-gradient(180deg, var(--green) 0%, var(--blue) 100%);
}
.ts-card:nth-child(even) .ts-card__avatar {
    background: var(--green-light); color: var(--green-dark);
}
.ts-card:nth-child(even) .ts-card__serial span { color: var(--green-dark); }

.ts-card:nth-child(even):hover .ts-card__serial {
    background: var(--green-dark); border-color: var(--green-dark);
    box-shadow: 0 8px 28px rgba(22,163,74,.28);
}
.ts-card:nth-child(even):hover .ts-card__avatar { background: var(--green-dark); color: #fff; }
.ts-card:nth-child(even):hover .ts-card__name   { color: var(--green-dark); }

/* ================================================================
   7. EMPTY STATE  (shown while Repeater has no data / loading)
   ================================================================ */
.ts-empty {
    text-align: center; padding: 60px 20px;
    font-family: 'DM Sans', sans-serif;
    color: var(--text-muted); font-size: .95rem;
}
.ts-empty i { font-size: 2.5rem; color: var(--border); display: block; margin-bottom: 14px; }

/* ================================================================
   8. RESPONSIVE
   ================================================================ */
@media (max-width: 767px) {
    .ts-area { padding: 60px 0 70px; }
    .ts-spine { left: 24px; }

    .ts-card__serial { width: 48px; height: 48px; }
    .ts-card__serial span { font-size: .88rem; }

    .ts-card__body { padding: 14px 16px; gap: 12px; }
    .ts-card__avatar { display: none; }
    .ts-card__badge  { display: none; }
    .ts-card__name   { white-space: normal; }
    .ts-card__designation { white-space: normal; }
}
@media (max-width: 480px) {
    .ts-card { gap: 12px; }
    .ts-card__serial { width: 40px; height: 40px; }
    .ts-spine { left: 20px; }
}