@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@300;400;500;600;700&family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

/* ── CSS Variables ── */
:root {
  --teal:       #00b894;
  --teal-dark:  #007a62;
  --teal-dim:   rgba(0,184,148,.1);
  --teal-glow:  rgba(0,184,148,.3);
  --navy:       #0f1c3a;
  --navy-light: #1a2e5e;
  --white:      #ffffff;
  --bg:         #020509;
  --bg2:        #060d18;
  --bg3:        #0a1525;
  --border:     rgba(0,184,148,.1);
  --borderHi:   rgba(0,184,148,.28);
  --text:       #e8f0fe;
  --textSub:    #8fafc8;
  --textMuted:  #3d5a72;
  --radius:     14px;
  --fa-font-display: swap;
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Hind Siliguri", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  font-size: 16px;
  line-height: 1.6;
}

/* ── Grid texture ── */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,184,148,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,184,148,.025) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ── Blobs ── */
.blob { position: fixed; border-radius: 50%; filter: blur(140px); pointer-events: none; z-index: 0; }
.blob-1 { width:650px; height:650px; top:-250px; left:-200px; background:rgba(0,184,148,.1); }
.blob-2 { width:500px; height:500px; top:35%; right:-200px; background:rgba(15,28,58,.8); }
.blob-3 { width:400px; height:400px; bottom:5%; left:15%; background:rgba(0,184,148,.06); }

/* ============================================================
   WELCOME MODAL
   ============================================================ */
.welcome-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,.88);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity .4s ease;
}
.welcome-overlay.active { opacity: 1; pointer-events: all; }
.welcome-modal {
  background: var(--bg2); border: 1px solid var(--borderHi);
  border-radius: 24px; padding: 0;
  width: 100%; max-width: 480px; position: relative; overflow: hidden;
  transform: translateY(40px) scale(.95);
  transition: transform .45s cubic-bezier(.34,1.56,.64,1);
  max-height: 90vh; overflow-y: auto;
}
.welcome-overlay.active .welcome-modal { transform: translateY(0) scale(1); }
.welcome-modal::before {
  content: ''; position: absolute; top: 0; left: 8%; right: 8%; height: 2px;
  background: linear-gradient(90deg, var(--navy-light), var(--teal), white);
  border-radius: 2px;
}
.wm-close {
  position: absolute; top: 1rem; right: 1rem; z-index: 10;
  width: 30px; height: 30px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,.15); background: rgba(0,0,0,.3);
  color: rgba(255,255,255,.5); font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .2s;
}
.wm-close:hover { border-color: var(--teal); color: var(--teal); }
.wm-banner {
  background: linear-gradient(135deg, var(--navy-light), rgba(0,122,98,.7));
  padding: 2rem 2rem 1.5rem; position: relative; overflow: hidden; text-align: center;
}
.wm-banner::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: rgba(0,184,148,.15); pointer-events: none;
}
.wm-logo { width: 200px; height: 200px; margin: -4rem auto -2.5rem; position: relative; z-index: 1; }
.wm-logo img { width: 100%; height: auto; object-fit: contain; mix-blend-mode: screen; filter: brightness(1.2); margin-top: 4rem; }
.wm-badge {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(0,184,148,.2); border: 1px solid var(--teal);
  padding: .3rem 1rem; border-radius: 99px;
  font-size: .78rem; color: white; font-weight: 600; margin-bottom: 1rem;
}
.wm-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); animation: pulse 1.5s ease infinite; }
.wm-headline {
  position: relative; z-index: 1;
 font-family: "Open Sans", sans-serif; font-size: 1.5rem; font-weight: 800;
  color: var(--white); line-height: 1.2; margin-bottom: .4rem;
}
.wm-headline span { color: var(--teal); }
.wm-sub { position: relative; z-index: 1; font-size: .88rem; color: rgba(255,255,255,.6); }
.wm-body { padding: 1.8rem 2rem 2rem; }
.wm-batch-card {
  background: var(--bg3); border-left: 4px solid var(--teal);
  border-radius: 14px; padding: 1.4rem 1.5rem; margin-bottom: 1.4rem;
}
.wm-batch-title { font-family: "Open Sans", sans-serif; font-size: 1rem; font-weight: 700; color: var(--teal); margin-bottom: .8rem; }
.wm-info-row { display: flex; align-items: center; gap: .6rem; font-size: .88rem; color: var(--textSub); margin-bottom: .45rem; }
.wm-info-row:last-child { margin-bottom: 0; }
.wm-seats {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(0,184,148,.07); border: 1px solid var(--border);
  border-radius: 10px; padding: .9rem 1.2rem; margin-bottom: 1.4rem;
}
.seat-left .seat-num { font-family: "Open Sans", sans-serif; font-size: 1.1rem; font-weight: 700; color: var(--white); display: block; }
.seat-left .seat-label { font-size: .82rem; color: var(--textMuted); }
.seat-bar { flex: 1; height: 6px; background: var(--bg3); border-radius: 99px; margin: 0 1rem; }
.seat-fill { height: 100%; width: 72%; border-radius: 99px; background: linear-gradient(90deg, var(--teal), #7fffea); }
.seat-right { text-align: right; }
.seat-right .seat-full { font-family: "Open Sans", sans-serif; font-size: 1rem; font-weight: 700; color: var(--teal); display: block; }
.seat-right .seat-label { font-size: .8rem; color: var(--textMuted); }
.wm-btn-enroll {
  width: 100%; padding: .9rem; border: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--navy-light), var(--teal));
  color: var(--white); font-family: "Open Sans", sans-serif;
  font-size: 1rem; font-weight: 700; cursor: pointer;
  transition: all .3s; margin-bottom: .8rem;
}
.wm-btn-enroll:hover { box-shadow: 0 0 28px var(--teal-glow); transform: translateY(-1px); }
.wm-btn-skip {
  width: 100%; padding: .6rem; border: 1px solid var(--border);
  border-radius: 10px; background: transparent;
  color: var(--white); font-size: .88rem; cursor: pointer; transition: all .2s;
}
.wm-btn-skip:hover { border-color: var(--borderHi); color: var(--textSub); }

/* ============================================================
   ENROLL MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
   inset: 0;
    z-index: 9999;
    overflow-y: auto;
  background: rgba(0,0,0,.88); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; padding: 1rem;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg2); border: 1px solid var(--borderHi);
  border-radius: 20px; padding: 2.5rem;
  width: 100%; max-width: 520px; position: relative;
  transform: translateY(30px) scale(.97); transition: transform .35s ease;
  max-height: 90dvh; overflow-y: auto;
}
.modal-overlay.active .modal { transform: translateY(0) scale(1); }
.modal::before {
  content: ''; position: absolute; top: 0; left: 8%; right: 8%; height: 2px;
  background: linear-gradient(90deg, var(--navy-light), var(--teal), white);
  border-radius: 2px;
}
.modal-close {
  position: absolute; top: 1.2rem; right: 1.2rem;
  width: 32px; height: 32px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg3);
  color: var(--textMuted); font-size: 1.1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .2s;
}
.modal-close:hover { border-color: var(--teal); color: var(--teal); }
.modal-badge {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .78rem; color: var(--teal);
  background: var(--teal-dim); border: 1px solid var(--borderHi);
  padding: .28rem .85rem; border-radius: 99px; margin-bottom: .9rem;
}
.modal-title { font-family: "Open Sans", sans-serif; font-size: 1.6rem; font-weight: 800; margin-bottom: .4rem; }
.modal-sub { font-size: .92rem; color: var(--textMuted); }
.form-group { margin-bottom: 1.2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label { display: block; font-size: .85rem; font-weight: 600; color: var(--textSub); margin-bottom: .45rem; }
label span { color: var(--teal); }
input, select, textarea {
  width: 100%; background: var(--bg3); border: 1.5px solid var(--border);
  border-radius: 10px; padding: .75rem 1rem; color: var(--text);
  font-family: 'Hind Siliguri', sans-serif; font-size: .95rem; outline: none;
  transition: border-color .25s, box-shadow .25s; appearance: none;
}
input::placeholder, textarea::placeholder { color: var(--textMuted); }
input:focus, select:focus, textarea:focus {
  border-color: var(--teal); box-shadow: 0 0 0 3px rgba(0,184,148,.12);
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233d5a72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center;
  padding-right: 2.5rem; cursor: pointer;
}
select option { background: var(--bg3); }
textarea { resize: vertical; min-height: 80px; }
input.error, select.error { border-color: #f87171; }
.err-msg { font-size: .78rem; color: #f87171; margin-top: .35rem; display: none; }
.err-msg.show { display: block; }
.btn-submit {
  width: 100%; padding: .9rem; border: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--navy-light), var(--teal));
  color: var(--white); font-family: "Open Sans", sans-serif;
  font-size: 1rem; font-weight: 700; cursor: pointer; transition: all .3s; margin-top: .5rem;
}
.btn-submit:hover { box-shadow: 0 0 28px var(--teal-glow); transform: translateY(-1px); }
.btn-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.form-note { text-align: center; font-size: .82rem; color: var(--textMuted); margin-top: 1rem; }
.modal-success { display: none; text-align: center; padding: 1rem 0; }
.modal-success.show { display: block; }
.modal-success .s-icon { font-size: 3.5rem; margin-bottom: 1rem; animation: popIn .5s ease; }
.modal-success h3 { font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 800; margin-bottom: .6rem; color: var(--teal); }
.modal-success p { color: var(--textMuted); font-size: .95rem; line-height: 1.7; }

/* ============================================================
   NAVBAR
   ============================================================ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 4rem; height: 70px;
  transition: background .4s, border-color .4s;
}
nav.scrolled {
  background: rgba(2,5,9,.9);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { display: flex; align-items: center; gap: .7rem; text-decoration: none; }
.nav-logo img { height: 42px; width: auto; mix-blend-mode: screen; filter: brightness(1.15); }
.nav-logo-text { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 800; color: var(--white); line-height: 1.1; }
.nav-logo-text span { color: var(--teal); display: block; font-size: .65rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 2.2rem; list-style: none; }
.nav-links a { font-size: .92rem; font-weight: 500; color: var(--textSub); text-decoration: none; transition: color .2s; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -3px; left: 0; width: 0; height: 2px; background: var(--teal); border-radius: 2px; transition: width .3s; }
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }
.btn-enroll-nav {
  padding: .55rem 1.4rem; border: none; border-radius: 8px;
  background: linear-gradient(135deg, var(--navy-light), var(--teal));
  color: var(--white); font-family: 'Syne', sans-serif;
  font-size: .85rem; font-weight: 700; cursor: pointer; transition: all .25s;
}
.btn-enroll-nav:hover { box-shadow: 0 0 20px var(--teal-glow); transform: translateY(-1px); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: .4rem; z-index: 201; }
.hamburger span { display: block; width: 26px; height: 2px; background: var(--white); border-radius: 2px; transition: all .35s ease; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  position: fixed; top: 70px; left: 0; right: 0; z-index: 190;
  background: rgba(2,5,9,.97); backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  flex-direction: column; padding: 0 1.5rem;
  display: flex; max-height: 0; overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
}
.mobile-menu.open { max-height: 500px; padding: 1.2rem 1.5rem 2rem; }
.mobile-menu a { font-size: 1.05rem; font-weight: 500; color: var(--textSub); text-decoration: none; padding: .85rem 0; border-bottom: 1px solid var(--border); transition: color .2s; }
.mobile-menu a:hover { color: var(--teal); }
.mob-enroll {
  margin-top: 1rem; width: 100%; padding: .9rem; border-radius: 10px; border: none;
  background: linear-gradient(135deg, var(--navy-light), var(--teal));
  color: var(--white); font-size: 1rem; font-weight: 700; cursor: pointer; transition: all .3s;
}
.mob-enroll:hover { box-shadow: 0 0 20px var(--teal-glow); }

/* ── TICKER BAR ── */
.ticker-bar {
  position: fixed;
  top: 70px; /* navbar height এর সমান */
  left: 0; right: 0;
  z-index: 199;
  height: 32px;
  background: linear-gradient(135deg, var(--navy-light), var(--teal-dark));
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.ticker-track {
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
  animation: ticker 25s linear infinite;
}

.ticker-track span {
  font-size: .75rem;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  padding: 0 2.5rem;
  border-right: 1px solid rgba(255,255,255,.2);
}

.ticker-track span:last-child {
  border-right: none;
}

/* hover করলে pause */
.ticker-bar:hover .ticker-track {
  animation-play-state: paused;
}

@keyframes ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; z-index: 1; min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  text-align: center;   padding: 11rem 2rem 5rem;
}
.hero-ring {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-55%);
  width: 580px; height: 580px; border-radius: 50%;
  border: 1px solid rgba(0,184,148,.06); pointer-events: none; z-index: 0;
}
.hero-ring::before { content: ''; position: absolute; inset: 40px; border-radius: 50%; border: 1px solid rgba(26,46,94,.3); }
.live-chip {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; gap: .55rem;
  border: 1px solid var(--borderHi); background: var(--teal-dim);
  padding: .45rem 1.2rem; border-radius: 99px;
  font-size: .9rem; color: var(--teal); font-weight: 500;
  margin-bottom: 2rem; animation: fadeDown .7s ease both;
}
.live-dot { width: 10px; height:10px; border-radius: 50%; background: var(--teal); animation: pulse 2s ease infinite; }
.hero h1 {
  position: relative; z-index: 1;
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  font-weight: 800; line-height: 1.08; max-width: 860px;
  animation: fadeUp .8s .1s ease both;
}
.h-teal { color: var(--teal); }
.h-white { color: var(--white); }
.h-grad {
  background: linear-gradient(90deg, var(--teal), #5fffdb, var(--teal));
  background-size: 200%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; animation: shimmer 4s linear infinite;
}
.hero-desc {
  position: relative; z-index: 1;
  max-width: 560px; margin: 2rem auto 0;
  font-size: 1.1rem; line-height: 1.9; color: var(--textSub);
  animation: fadeUp .8s .2s ease both;
}
.hero-btns {
  position: relative; z-index: 1;
  display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center;
  margin-top: 2.8rem; animation: fadeUp .8s .3s ease both;
}
.hbtn-main {
  padding: .9rem 2.2rem; border-radius: 10px; border: none;
  background: linear-gradient(135deg, var(--navy-light), var(--teal));
  color: var(--white); font-size: 1rem; font-weight: 700; cursor: pointer; transition: all .3s;
}
.hbtn-main:hover { box-shadow: 0 0 36px var(--teal-glow); transform: translateY(-2px); }
.hbtn-sec {
  padding: .9rem 2.2rem; border-radius: 10px;
  background: transparent; border: 1.5px solid var(--borderHi);
  color: var(--white); font-size: 1rem; font-weight: 600; cursor: pointer; transition: all .3s;
}
.hbtn-sec:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-dim); }
.hero-trust {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  justify-content: center; margin-top: 3rem; animation: fadeUp .8s .4s ease both;
}
.trust-pill {
  display: flex; align-items: center; gap: .45rem;
  background: var(--bg2); border: 1px solid var(--border);
  padding: .4rem 1rem; border-radius: 99px; font-size: .88rem; color: var(--textSub);
}
.scroll-cue {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .4rem;
  color: var(--textMuted); font-size: .75rem; letter-spacing: 1.5px; text-transform: uppercase;
  animation: fadeUp .8s .6s ease both; z-index: 1;
}
.scroll-line { width: 1px; height: 36px; background: linear-gradient(to bottom, var(--teal), transparent); animation: scrollPulse 2s ease infinite; }

/* ============================================================
   STATS
   ============================================================ */
.stats {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(4,1fr);
  background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.stats::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--navy-light), var(--teal), white, var(--teal), var(--navy-light));
}
.stat-box {
  padding: 2.8rem 2rem; border-right: 1px solid var(--border);
  text-align: center; position: relative; overflow: hidden; transition: background .3s;
}
.stat-box:last-child { border-right: none; }
.stat-box::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--teal-dim), transparent); opacity: 0; transition: opacity .3s; }
.stat-box:hover::after { opacity: 1; }
.stat-n {
  font-family: "Open Sans", sans-serif; font-size: 2.6rem; font-weight: 800;
  background: linear-gradient(135deg, var(--teal), #5fffdb);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.1;
}
.stat-l { color: var(--textMuted); font-size: .95rem; margin-top: .5rem; }

/* ============================================================
   SECTION COMMON
   ============================================================ */
.section { position: relative; z-index: 1; padding: 7rem 4rem; max-width: 1250px; margin: 0 auto;}
.sec-header { text-align: center; margin-bottom: 4rem; }
.sec-tag { display: inline-flex; align-items: center; gap: .5rem; font-size: .8rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--teal); margin-bottom: .8rem; }
.tag-line { width: 22px; height: 1.5px; background: var(--teal); border-radius: 2px; }
.brand-sep { width: 60px; height: 3px; margin: .8rem auto 1.5rem; border-radius: 3px; background: linear-gradient(90deg, var(--navy-light), var(--teal)); }
.sec-title {font-family: "Open Sans", sans-serif; font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; line-height: 1.2; }
.sec-desc { color: var(--textSub); font-size: 1.05rem; max-width: 520px; margin: 1rem auto 0; line-height: 1.85; }

/* ============================================================
   COURSE CARDS
   ============================================================ */
.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: 1.5rem; }
.c-card{
  border: 1px solid #34d399;
  padding: 1rem 1rem;
  border-radius: 1rem;

}
.c-status {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .75rem; font-weight: 700;
  padding: .25rem .8rem; border-radius: 99px;
  margin-bottom: 1rem;
}
.c-status.open {
  background: rgba(52,211,153,.12);
  color: #34d399;
  border: 1px solid rgba(52,211,153,.3);
}
.c-status.full {
  background: rgba(248,113,113,.12);
  color: #f87171;
  border: 1px solid rgba(248,113,113,.3);
}
.c-status.soon {
  background: rgba(148,163,184,.1);
  color: #94a3b8;
  border: 1px solid rgba(148,163,184,.2);
}
.c-info {
  margin-top: .8rem;
  padding: .8rem 1rem;
  background: var(--bg3);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.c-info-row {
  font-size: .82rem;
  color: var(--textSub);
  margin-bottom: .3rem;
}
.c-info-row:last-child { margin-bottom: 0; }

/* ============================================================
   FEATURES
   ============================================================ */
.feat-section { position: relative; z-index: 1; padding: 7rem 4rem; background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); max-width: 1250px; margin: 0 auto; }
.feat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px,1fr)); gap: 1.8rem; margin-top: 4rem; }
.f-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.2rem 1.8rem; text-align: center; transition: all .3s; position: relative; overflow: hidden; }
.f-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--navy-light), var(--teal)); opacity: 0; transition: opacity .3s; }
.f-card:hover { transform: translateY(-4px); border-color: var(--borderHi); box-shadow: 0 0 30px var(--teal-dim); }
.f-card:hover::after { opacity: 1; }
.f-icon-wrap { width: 66px; height: 66px; border-radius: 50%; background: var(--teal-dim); border: 1.5px solid var(--borderHi); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin: 0 auto 1.3rem; transition: all .3s; }
.f-card:hover .f-icon-wrap { border-color: var(--teal); box-shadow: 0 0 16px var(--teal-glow); }
.f-title { font-family: 'Syne', sans-serif; font-size: 1.05rem; font-weight: 700; margin-bottom: .6rem; }
.f-desc { font-size: .93rem; color: var(--textMuted); line-height: 1.8; }

/* ============================================================
   PROCESS
   ============================================================ */
.process-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); position: relative; margin-top: 1rem; }
.process-grid::before { content: ''; position: absolute; top: 28px; left: 12%; right: 12%; height: 2px; background: linear-gradient(90deg, var(--navy-light), var(--teal), white, var(--teal)); z-index: 0; opacity: .2; }
.p-step { position: relative; z-index: 1; text-align: center; padding: 2rem 1.5rem; }
.p-num { width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 1.2rem; display: flex; align-items: center; justify-content: center; font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 800; color: var(--white); background: linear-gradient(135deg, var(--navy-light), var(--teal)); transition: all .3s; }
.p-step:hover .p-num { box-shadow: 0 0 20px var(--teal-glow); transform: scale(1.08); }
.p-label { font-size: 1rem; font-weight: 600; margin-bottom: .5rem; }
.p-sub { font-size: .9rem; color: var(--textMuted); line-height: 1.7; }


/* ============================================================
   VIDEO SECTION
   ============================================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.video-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.video-card:hover {
  transform: translateY(-5px);
  border-color: var(--borderHi);
  box-shadow: 0 16px 40px rgba(0,0,0,.5), 0 0 30px var(--teal-dim);
}
.video-wrap {
  position: relative;
}
.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}
.video-info {
  padding: 1rem 1.2rem;
}
.video-title {
  font-family: 'Syne', sans-serif;
  font-size: .95rem; font-weight: 700;
  color: var(--white); margin-bottom: .3rem;
}
.video-meta {
  font-size: .8rem; color: var(--textMuted);
}
.btn-youtube {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 2rem; border-radius: 10px;
  border: 1.5px solid rgba(255,0,0,.4);
  background: rgba(255,0,0,.08);
  color: #ff4444; font-weight: 600; font-size: .95rem;
  text-decoration: none; transition: all .3s;
}
.btn-youtube:hover {
  background: rgba(255,0,0,.15);
  border-color: #ff4444;
  box-shadow: 0 0 20px rgba(255,0,0,.2);
}

.yt-lazy {
  position: relative;
  cursor: pointer;
  background: #000;
  width: 100%;
  aspect-ratio: 16/9;
}

.yt-lazy img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.yt-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,0,0,.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  transition: transform .2s;
}

.yt-lazy:hover .yt-play-btn {
  transform: translate(-50%,-50%) scale(1.1);
}

/* responsive */
@media(max-width:768px) {
  .video-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.t-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px,1fr)); gap: 1.5rem; }
.t-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; transition: all .3s; position: relative; overflow: hidden; }
.t-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--navy-light), var(--teal)); }
.t-card:hover { border-color: var(--borderHi); transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.5); }
.t-quote { font-size: 3rem; line-height: 1; color: var(--teal); opacity: .3; font-family: Georgia, serif; margin-bottom: .5rem; }
.t-stars { color: #ffd740; font-size: .9rem; letter-spacing: 2px; margin-bottom: 1rem; }
.t-text { font-size: 1rem; color: var(--textSub); line-height: 1.85; margin-bottom: 1.5rem; }
.t-author { display: flex; align-items: center; gap: .85rem; }
.t-av { width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0; background: linear-gradient(135deg, var(--navy-light), var(--teal)); display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 700; color: var(--white); }
.t-name { font-size: .95rem; font-weight: 600; }
.t-role { font-size: .82rem; color: var(--textMuted); margin-top: .1rem; }

/* ============================================================
   TESTIMONIAL AUTO SCROLL
   ============================================================ */
.review-track-wrap {
  overflow: hidden;
  position: relative;
  /* দুই পাশে fade effect */
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 8%,
    black 92%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 8%,
    black 92%,
    transparent 100%
  );
}

.review-track {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  animation: scrollReview 40s linear infinite;
}

/* hover করলে pause */
.review-track-wrap:hover .review-track {
  animation-play-state: paused;
}

@keyframes scrollReview {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* কার্ড — fixed width */
.review-track .t-card {
  width: 320px;
  flex-shrink: 0;
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-section { position: relative; z-index: 1; padding: 7rem 4rem; border-top: 1px solid var(--border); max-width: 1250px; margin: 0 auto;}
.gallery-tabs { display: flex; gap: .6rem; flex-wrap: wrap; justify-content: center; margin-bottom: 2.5rem; }
.g-tab {
  padding: .45rem 1.2rem; border-radius: 99px; border: 1px solid var(--border);
  background: transparent; color: var(--textMuted); font-family: 'Hind Siliguri', sans-serif;
  font-size: .88rem; font-weight: 500; cursor: pointer; transition: all .25s;
}
.g-tab:hover { border-color: var(--borderHi); color: var(--textSub); }
.g-tab.active { background: linear-gradient(135deg, var(--navy-light), var(--teal)); border-color: transparent; color: var(--white); }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.g-item { position: relative; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4/3; cursor: pointer; transition: transform .3s, border-color .3s; }
.g-item:first-child { grid-column: span 2; }
.g-item:hover { transform: scale(1.02); border-color: var(--borderHi); }
.g-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; display: block; }
.g-item:hover img { transform: scale(1.06); }
.g-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.75) 0%, transparent 60%); opacity: 0; transition: opacity .3s; display: flex; align-items: flex-end; padding: 1.2rem; }
.g-item:hover .g-overlay { opacity: 1; }
.g-label { font-size: .88rem; font-weight: 600; color: var(--white); background: rgba(0,184,148,.2); border: 1px solid rgba(0,184,148,.4); padding: .3rem .8rem; border-radius: 99px; }
.g-placeholder { width: 100%; height: 100%; background: var(--bg2); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .5rem; color: var(--textMuted); }
.g-placeholder .ph-icon { font-size: 2.5rem; opacity: .4; }
.g-placeholder .ph-text { font-size: .82rem; opacity: .5; }
.g-zoom-icon { position: absolute; top: .8rem; right: .8rem; font-size: 1rem; opacity: 0; transition: opacity .3s; background: rgba(0,0,0,.5); border-radius: 6px; padding: .25rem .4rem; }
.g-item:hover .g-zoom-icon { opacity: 1; }
.g-item.g-hidden { display: none; }
.g-item.g-visible { display: block; animation: fadeUp .5s ease both; }
.btn-load-more { display: inline-flex; align-items: center; gap: .6rem; padding: .8rem 2rem; border-radius: 10px; border: 1.5px solid var(--borderHi); background: transparent; color: var(--text); font-family: 'Syne', sans-serif; font-size: .95rem; font-weight: 600; cursor: pointer; transition: all .3s; }
.btn-load-more:hover { background: var(--teal-dim); border-color: var(--teal); color: var(--teal); }
.btn-load-more.all-shown { opacity: .4; cursor: default; pointer-events: none; }
.load-more-count { font-size: .82rem; color: var(--textMuted); margin-top: .6rem; }

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox-overlay { position: fixed; inset: 0; z-index: 20000; background: rgba(0,0,0,.95); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity .35s ease; }
.lightbox-overlay.active { opacity: 1; pointer-events: all; }
.lb-img-wrap { max-width: 88vw; max-height: 80vh; border-radius: 14px; overflow: hidden; border: 1px solid var(--borderHi); }
.lb-img-wrap img { max-width: 88vw; max-height: 80vh; object-fit: contain; display: block; }
.lb-placeholder { width: min(600px,80vw); height: min(400px,60vh); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; background: var(--bg2); }
.lb-ph-icon { font-size: 5rem; }
.lb-close { position: fixed; top: 1.5rem; right: 1.5rem; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--borderHi); background: rgba(0,0,0,.6); color: var(--white); font-size: 1.2rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .2s; z-index: 20001; }
.lb-close:hover { background: var(--teal); border-color: var(--teal); }
.lb-nav { position: fixed; top: 50%; transform: translateY(-50%); width: 52px; height: 52px; border-radius: 50%; border: 1px solid var(--borderHi); background: rgba(0,0,0,.7); color: var(--white); font-size: 2rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .2s; z-index: 20001; line-height: 1; }
.lb-prev { left: 1.5rem; } .lb-next { right: 1.5rem; }
.lb-nav:hover { background: var(--teal); border-color: var(--teal); }
.lb-caption { position: fixed; bottom: 3.5rem; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,.75); backdrop-filter: blur(8px); border: 1px solid var(--border); border-radius: 99px; padding: .5rem 1.4rem; color: var(--white); font-size: .9rem; white-space: nowrap; }
.lb-counter { position: fixed; bottom: 1.2rem; left: 50%; transform: translateX(-50%); font-size: .8rem; color: var(--textMuted); letter-spacing: 1px; }

/* ============================================================
   TEAM
   ============================================================ */
.team-section { position: relative; z-index: 1; padding: 7rem 4rem; background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); max-width: 1250px; margin: 0 auto; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.8rem; margin-top: 1rem; }
.team-dept-label { font-family: 'Syne', sans-serif; font-size: .82rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--teal); margin-bottom: 1.5rem; display: flex; align-items: center; gap: .6rem; padding-bottom: .8rem; border-bottom: 1px solid var(--border); }
.team-card { background: var(--bg3); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: all .3s; position: relative;  padding: 16px; }
.team-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--navy-light), var(--teal)); opacity: 0; transition: opacity .3s; }
.team-card:hover { transform: translateY(-6px); border-color: var(--borderHi); box-shadow: 0 20px 50px rgba(0,0,0,.5), 0 0 30px var(--teal-dim); }
.team-card:hover::before { opacity: 1; }
.team-img-wrap { width: 80%; overflow: hidden; background: var(--bg2); position: relative; margin: 0 auto; border-radius: 5px;  }
.team-img-wrap img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  object-position:top; /* মুখ উপরে থাকবে */
  transition: transform .4s;
  display: block;
}
.team-card:hover .team-img-wrap img { transform: scale(1.05); }
.team-avatar-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--bg3), var(--navy-light)); font-size: 3.5rem; color: var(--textMuted); }
.team-info { padding: 1.3rem; }
.team-badge.advisor { background:rgba(251,191,36,.15); color:#fbbf24; border:1px solid rgba(251,191,36,.3); }
/* Advisor আলাদা row */
.advisor-row {
  display: flex;
  justify-content:left;
  margin-bottom: 2rem;
}
.team-card-advisor {
  width: 200px;
}
.team-card-advisor .team-img-wrap {
  aspect-ratio: 1/1;
  max-height: 130px;
}
.team-card-advisor .team-avatar-placeholder {
  font-size: 2.2rem;
}
.team-card-advisor .team-info {
  padding: 1rem;
}
.team-card-advisor .team-name {
  font-size: .9rem;
}
.team-card-advisor .team-role {
  font-size: .75rem;
}
.team-card-advisor .team-exp {
  font-size: .72rem;
}
.team-badge { display: inline-block; font-family: 'Syne', sans-serif; font-size: .7rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; padding: .22rem .75rem; border-radius: 99px; margin-bottom: .6rem; }
.team-badge.ceo         { background:rgba(255,215,0,.15);   color:#ffd700; border:1px solid rgba(255,215,0,.3); }
.team-badge.md          { background:rgba(0,184,148,.15);   color:var(--teal); border:1px solid var(--borderHi); }
.team-badge.cfo         { background:rgba(147,197,253,.15); color:#93c5fd; border:1px solid rgba(147,197,253,.3); }
.team-badge.cto         { background:rgba(167,139,250,.15); color:#a78bfa; border:1px solid rgba(167,139,250,.3); }
.team-badge.tt          { background:rgba(52,211,153,.15);  color:#34d399; border:1px solid rgba(52,211,153,.3); }
.team-badge.marketing   { background:rgba(251,146,60,.15);  color:#fb923c; border:1px solid rgba(251,146,60,.3); }
.team-badge.coordinator { background:rgba(56,189,248,.15);  color:#38bdf8; border:1px solid rgba(56,189,248,.3); }
.team-badge.hr          { background:rgba(244,114,182,.15); color:#f472b6; border:1px solid rgba(244,114,182,.3); }
.team-name { font-family: 'Syne', sans-serif; font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: .3rem; }
.team-role { font-size: .82rem; color: var(--teal); font-weight: 600; margin-bottom: .6rem; }
.team-exp { font-size: .8rem; color: var(--textMuted); line-height: 1.6; }
.team-social { display: flex; gap: .5rem; margin-top: .9rem; }
.team-social a { width: 30px; height: 30px; border-radius: 6px; border: 1px solid var(--border); background: transparent; display: flex; align-items: center; justify-content: center; font-size: .78rem; color: var(--textMuted); text-decoration: none; transition: all .2s; }
.team-social a:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-dim); }

/* ============================================================
   CTA
   ============================================================ */
.cta-wrap { position: relative; z-index: 1; padding: 0 4rem 6rem; }
.cta-card { border-radius: 24px; padding: 5rem 3rem; text-align: center; position: relative; overflow: hidden; background: linear-gradient(135deg, var(--navy) 0%, #071228 50%, rgba(0,184,148,.12) 100%); border: 1px solid var(--borderHi); }
.cta-card::before { content: ''; position: absolute; width: 400px; height: 400px; border-radius: 50%; border: 1px solid rgba(0,184,148,.1); top: 50%; right: -100px; transform: translateY(-50%); }
.cta-card::after  { content: ''; position: absolute; width: 280px; height: 280px; border-radius: 50%; border: 1px solid rgba(0,184,148,.07); top: 50%; right: -40px; transform: translateY(-50%); }
.cta-inner { position: relative; z-index: 1; }
.cta-card h2 { font-family: 'Syne', sans-serif; font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; margin-bottom: 1rem; }
.cta-card h2 span { color: var(--teal); }
.cta-card p { color: var(--textSub); font-size: 1.05rem; margin-bottom: 2.5rem; }
.cta-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   FOOTER
   ============================================================ */
footer { position: relative; z-index: 1; background: var(--navy); border-top: 3px solid var(--teal); padding: 4rem; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand p { font-size: .95rem; color: rgba(255,255,255,.45); margin-top: 1rem; line-height: 1.8; max-width: 280px; }
.footer-logo { display: flex; align-items: center; gap: .75rem; text-decoration: none; }
.footer-logo img { height: 40px; mix-blend-mode: screen; filter: brightness(1.2); }
.footer-logo-text { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 800; color: var(--white); }
.footer-logo-text span { color: var(--teal); display: block; font-size: .65rem; letter-spacing: 2px; text-transform: uppercase; }
.footer-col h4 { font-family: 'Syne', sans-serif; font-size: .88rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); margin-bottom: 1.2rem; }
.footer-col a { display: block; color: rgba(255,255,255,.45); text-decoration: none; font-size: .95rem; margin-bottom: .8rem; transition: color .2s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 2rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: .85rem; color: rgba(255,255,255,.35); }
.footer-socials { display: flex; gap: 1rem; }
.social-btn { width: 38px; height: 38px; border-radius: 8px; border: 1px solid rgba(255,255,255,.12); background: transparent; display: flex; align-items: center; justify-content: center; font-size: 1rem; cursor: pointer; transition: all .25s; color: rgba(255,255,255,.35); text-decoration: none; }
.social-btn:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-dim); }
.dev-credit { margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,.06); display: flex; align-items: center; justify-content: center; gap: .6rem; flex-wrap: wrap; font-size: .82rem; color: rgba(255,255,255,.3); letter-spacing: .5px; }
.dev-brand { display: inline-flex; align-items: center; gap: .4rem; text-decoration: none; transition: opacity .2s; }
.dev-brand:hover { opacity: .8; }
.dev-brand img { height: 20px; width: auto; mix-blend-mode: screen; filter: brightness(1.1); opacity: .7; }
.dev-brand strong { font-family: 'Syne', sans-serif; font-size: .82rem; font-weight: 700; letter-spacing: 1.5px; background: linear-gradient(90deg, var(--teal), #7fffdb); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp   { from{opacity:0;transform:translateY(22px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeDown { from{opacity:0;transform:translateY(-14px)} to{opacity:1;transform:translateY(0)} }
@keyframes shimmer  { to{background-position:200% center} }
@keyframes scrollPulse { 0%,100%{opacity:.3} 50%{opacity:1} }
@keyframes pulse { 0%,100%{box-shadow:0 0 0 0 rgba(0,184,148,.5)} 50%{box-shadow:0 0 0 7px transparent} }
@keyframes popIn { from{transform:scale(0)} to{transform:scale(1)} }
.reveal { opacity:0; transform:translateY(26px); transition:opacity .65s ease,transform .65s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-d1{transition-delay:.1s} .reveal-d2{transition-delay:.2s} .reveal-d3{transition-delay:.3s}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:1024px) { .footer-top{grid-template-columns:1fr 1fr} .footer-brand{grid-column:1/-1} }
@media(max-width:768px) {
  nav{padding:0 1.5rem} .nav-links{display:none} .btn-enroll-nav{display:none} .hamburger{display:flex}
  .stats{grid-template-columns:repeat(2,1fr); max-width: 1250px; margin: 0 auto;} .stat-box{border-bottom:1px solid var(--border)}
  .section{padding:5rem 1.5rem} .feat-section{padding:5rem 1.5rem} .gallery-section{padding:5rem 1.5rem} .team-section{padding:5rem 1.5rem}
  .cta-wrap{padding:0 1.5rem 4rem; max-width: 1250px; margin: 0 auto;} .cta-card{padding:3.5rem 1.5rem}
  footer{padding:3rem 1.5rem; max-width: 1250px; margin: 0 auto;} .footer-top{grid-template-columns:1fr;gap:2rem} .footer-brand{grid-column:auto}
  .process-grid::before{display:none} .form-row{grid-template-columns:1fr} .modal{padding:2rem 1.5rem}
  .hero-ring{display:none} .wm-body{padding:1.5rem 1.5rem 1.8rem}
  .gallery-grid{grid-template-columns:repeat(2,1fr)} .g-item:first-child{grid-column:span 2}
  .team-grid{grid-template-columns:repeat(2,1fr);gap:1.2rem}
}
@media(max-width:480px) {
  .hero h1{font-size:2.4rem} .hero-btns{flex-direction:column;align-items:center}
  .hbtn-main,.hbtn-sec{width:100%;text-align:center}
  .g-item:first-child{grid-column:span 1}
  .team-grid{grid-template-columns:repeat(2,1fr)}
}