:root {
  --primary: #1a1a6e;
  --secondary: #c8102e;
  --gold: #f5c518;
  --accent: #00b4d8;
  --light: #f0f4ff;
  --white: #ffffff;
  --dark: #0d0d2b;
  --green: #2dc653;
  --text: #1a1a2e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: 'Hind Siliguri', sans-serif;
  background: var(--white);
  color: var(--text);
  overflow-x: hidden;
}

/* ===== CONTAINER (FIXED) ===== */
.container { 
  width: 100%; /* এই লাইনটি লেখাগুলো চেপে যাওয়া থেকে রক্ষা করবে */
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 24px; 
}

/* ===== TOP BAR ===== */
.topbar { background: var(--dark); color: #ccc; font-size: 13px; padding: 8px 0; font-family: 'Montserrat', sans-serif; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.topbar a { color: var(--gold); text-decoration: none; transition: color 0.3s;}
.topbar a:hover { color: #fff; }

/* ===== NAVBAR ===== */
nav { background: var(--primary); position: sticky; top: 0; z-index: 1000; transition: all 0.3s ease; }
nav.scrolled { background: rgba(26, 26, 110, 0.95); backdrop-filter: blur(10px); box-shadow: 0 4px 20px rgba(0,0,0,0.4); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 0 20px; height: 70px; }
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo-text { color: white; }
.nav-logo-text .bn { font-size: 18px; font-weight: 700; line-height: 1.1; }
.nav-logo-text .en { font-size: 10px; opacity: 0.7; letter-spacing: 1px; font-family: 'Montserrat', sans-serif; }
.nav-links { display: flex; list-style: none; gap: 4px; align-items: center; }
.nav-links a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 14px; font-family: 'Montserrat', sans-serif; font-weight: 600; padding: 8px 14px; border-radius: 6px; transition: all 0.25s; white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { background: var(--gold); color: var(--primary); }
.nav-links .btn-admit { background: var(--secondary) !important; color: white !important; padding: 9px 18px; border-radius: 8px; }
.nav-links .btn-admit:hover { background: #e8001c !important; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(200,16,46,0.4); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.hamburger span { width: 26px; height: 2px; background: white; border-radius: 2px; transition: all 0.3s; }

/* ===== MOBILE MENU ===== */
.mobile-menu { display: none; flex-direction: column; gap: 4px; background: #12126e; padding: 10px 20px 20px; border-top: 1px solid rgba(255,255,255,0.1); }
.mobile-menu.open { display: flex; }
.mobile-menu a { color: white; text-decoration: none; font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 14px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }

/* ===== HERO SECTION ===== */
.hero { background: linear-gradient(135deg, #0d0d2b 0%, #1a1a6e 40%, #2d0b4e 70%, #0d0d2b 100%); position: relative; overflow: hidden; padding: 80px 0 100px; min-height: 92vh; display: flex; align-items: center; width: 100%; }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 50%, rgba(0,180,216,0.12) 0%, transparent 60%), radial-gradient(ellipse at 20% 80%, rgba(245,197,24,0.08) 0%, transparent 50%); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 60px 60px; }

.hero-content { 
  position: relative; 
  z-index: 2; 
  width: 100%;
  max-width: 650px; 
}

.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(245,197,24,0.15); border: 1px solid rgba(245,197,24,0.4); color: var(--gold); padding: 7px 16px; border-radius: 30px; font-size: 13px; font-family: 'Montserrat', sans-serif; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 24px; }
.hero-badge span { width: 8px; height: 8px; background: var(--gold); border-radius: 50%; animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.4)} }

.hero h1 { font-family: 'Hind Siliguri', sans-serif; font-size: clamp(38px, 4.5vw, 72px); font-weight: 700; color: white; line-height: 1.15; margin-bottom: 10px; }
.hero h1 span { color: var(--gold); }
.hero h2 { font-family: 'Montserrat', sans-serif; font-size: clamp(14px, 2vw, 24px); font-weight: 600; color: var(--accent); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 20px; }
.hero-address { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.65); font-size: 15px; margin-bottom: 36px; }

.hero-stats { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 44px; align-items: center; }
.stat-item { text-align: left; }
.border-left { border-left: 1px solid rgba(255,255,255,0.12); padding-left: 24px; }
.stat-num { font-family: 'Montserrat', sans-serif; font-size: clamp(28px, 3vw, 36px); font-weight: 800; color: var(--gold); line-height: 1; }
.stat-label { font-size: 12px; color: rgba(255,255,255,0.55); font-family: 'Montserrat', sans-serif; margin-top: 4px; letter-spacing: 0.5px; }

.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 30px; border-radius: 10px; font-size: 15px; font-weight: 700; font-family: 'Montserrat', sans-serif; text-decoration: none; transition: all 0.25s; cursor: pointer; border: none; }
.btn-primary { background: var(--gold); color: var(--primary); }
.btn-primary:hover { background: #ffd22e; transform: translateY(-3px); box-shadow: 0 8px 24px rgba(245,197,24,0.3); }
.btn-outline { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.35); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: white; transform: translateY(-3px); }

/* Hero Visual Cards */
.hero-visual { 
  position: absolute; 
  right: max(2%, calc(50vw - 580px)); 
  top: 50%; 
  transform: translateY(-50%); 
  width: 45%; 
  max-width: 480px; 
  z-index: 1; 
}
.hero-card-stack { position: relative; width: 100%; padding: 20px; }
.floating-card { background: rgba(255,255,255,0.05); backdrop-filter: blur(15px); border: 1px solid rgba(255,255,255,0.12); border-radius: 18px; padding: 24px; margin-bottom: 14px; transition: all 0.3s ease; }
.floating-card:hover { transform: translateX(-10px) scale(1.02) !important; background: rgba(255,255,255,0.1); border-color: var(--gold); }
.float-anim-1 { animation: floatY 6s ease-in-out infinite; }
.float-anim-2 { animation: floatY 6s ease-in-out infinite 1s; }
.float-anim-3 { animation: floatY 6s ease-in-out infinite 2s; }
@keyframes floatY { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-15px)} }

.fc-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 12px; }
.fc-title { color: white; font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.fc-sub { color: rgba(255,255,255,0.5); font-size: 13px; font-family: 'Montserrat', sans-serif; }
.badge-10 { position: absolute; top: -10px; right: 30px; background: var(--secondary); color: white; width: 80px; height: 80px; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 26px; line-height: 1; box-shadow: 0 8px 24px rgba(200,16,46,0.5); z-index: 3; }
.badge-10 .yr { font-size: 10px; font-weight: 600; letter-spacing: 1px; }

/* ===== NOTICE TICKER ===== */
.ticker-wrap { background: var(--gold); padding: 10px 0; overflow: hidden; }
.ticker-label { background: var(--secondary); color: white; font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 12px; letter-spacing: 1px; padding: 0 18px; line-height: 36px; white-space: nowrap; float: left; }
.ticker { overflow: hidden; margin-left: 100px; }
.ticker-inner { display: flex; animation: ticker 30s linear infinite; white-space: nowrap; color: var(--primary); font-weight: 600; font-size: 14px; font-family: 'Montserrat', sans-serif; }
.ticker-inner span { padding: 0 50px; }
@keyframes ticker { from{transform:translateX(100vw)} to{transform:translateX(-100%)} }

/* ===== SECTION COMMONS ===== */
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag { display: inline-block; background: rgba(26,26,110,0.1); color: var(--primary); font-family: 'Montserrat', sans-serif; font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; padding: 6px 16px; border-radius: 20px; border: 1px solid rgba(26,26,110,0.2); margin-bottom: 16px; }
.section-title { font-family: 'Hind Siliguri', sans-serif; font-size: clamp(28px, 4vw, 44px); font-weight: 700; color: var(--primary); margin-bottom: 16px; line-height: 1.2; }
.section-sub { color: #666; font-size: 16px; max-width: 560px; margin: 0 auto; line-height: 1.7; }
.section-line { width: 60px; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 2px; margin: 20px auto 0; }

/* ===== FEATURES ===== */
.features-section { padding: 100px 0; background: var(--light); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.feature-card { background: white; border-radius: 20px; padding: 36px 30px; transition: all 0.3s ease; border: 1px solid rgba(0,0,0,0.06); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform 0.3s; }
.feature-card:hover { transform: translateY(-10px); box-shadow: 0 24px 60px rgba(26,26,110,0.12); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon { width: 64px; height: 64px; border-radius: 18px; display: flex; align-items: center; justify-content: center; font-size: 30px; margin-bottom: 22px; background: var(--bg); }
.feature-card h3 { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.feature-card p { color: #666; font-size: 14px; line-height: 1.7; }

/* ===== ADMISSIONS ===== */
.admissions-section { padding: 100px 0; }
.admissions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.admission-card { background: white; border-radius: 20px; overflow: hidden; box-shadow: 0 10px 40px rgba(0,0,0,0.08); border: 1px solid rgba(0,0,0,0.06); transition: transform 0.3s ease; }
.admission-card:hover { transform: translateY(-5px); box-shadow: 0 15px 50px rgba(0,0,0,0.12); }
.ac-header { padding: 24px 28px; display: flex; align-items: center; gap: 14px; }
.ac-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 26px; flex-shrink: 0; }
.ac-title { font-size: 20px; font-weight: 700; color: white; }
.ac-sub { font-size: 12px; color: rgba(255,255,255,0.7); font-family: 'Montserrat', sans-serif; }
.ac-body { padding: 28px; }
.ac-body p { color: #555; font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.ac-features { list-style: none; margin-bottom: 24px; }
.ac-features li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid rgba(0,0,0,0.05); font-size: 14px; color: #444; }
.ac-features li:last-child { border-bottom: none; }
.check { color: var(--green); font-size: 16px; }
.btn-full { width: 100%; justify-content: center; }

/* ===== RESULT SECTION ===== */
.result-section { padding: 100px 0; background: linear-gradient(135deg, var(--primary) 0%, #2d0b4e 100%); position: relative; overflow: hidden; }
.result-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 50%, rgba(0,180,216,0.15) 0%, transparent 60%); }
.result-section .section-tag { background: rgba(255,255,255,0.15); color: white; border-color: rgba(255,255,255,0.3); }
.result-section .section-title { color: white; }
.result-section .section-sub { color: rgba(255,255,255,0.65); }
.result-widget { background: rgba(255,255,255,0.05); backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.12); border-radius: 24px; padding: 44px; max-width: 700px; width: 100%; margin: 0 auto; text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.result-form-title { color: white; font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.result-form-sub { color: rgba(255,255,255,0.55); font-size: 14px; margin-bottom: 32px; font-family: 'Montserrat', sans-serif; }
.result-tabs { display: flex; flex-wrap: wrap; background: rgba(0,0,0,0.2); border-radius: 12px; padding: 4px; margin-bottom: 28px; gap: 4px; }
.result-tab { flex: 1; padding: 10px; border: none; background: transparent; color: rgba(255,255,255,0.55); font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 600; border-radius: 9px; cursor: pointer; transition: all 0.25s; min-width: 100px; }
.result-tab.active, .result-tab:hover { background: var(--gold); color: var(--primary); }
.result-inputs { display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px; }
.result-input { padding: 14px 18px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: 12px; color: white; font-size: 15px; font-family: 'Hind Siliguri', sans-serif; outline: none; transition: border 0.2s; width: 100%; }
.result-input::placeholder { color: rgba(255,255,255,0.35); }
.result-input:focus { border-color: var(--gold); background: rgba(255,255,255,0.12); }
.result-input option { color: #000; }
.result-output { display: none; background: rgba(255,255,255,0.08); border-radius: 16px; padding: 28px; margin-top: 20px; text-align: left; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from{opacity:0; transform:translateY(10px)} to{opacity:1; transform:translateY(0)} }
.result-output.show { display: block; }
.result-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.08); font-size: 14px; }
.result-row .label { color: rgba(255,255,255,0.55); }
.result-row .value { color: white; font-weight: 600; text-align: right;}
.gpa-display { text-align: center; padding: 20px 0 0; }
.gpa-num { font-family: 'Montserrat', sans-serif; font-size: 56px; font-weight: 800; color: var(--gold); line-height: 1; }
.gpa-label { color: rgba(255,255,255,0.6); font-size: 14px; font-family: 'Montserrat', sans-serif; margin-top: 6px; }

/* ===== NOTICE BOARD ===== */
.notice-section { padding: 100px 0; background: var(--light); }
.notice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.notice-panel { background: white; border-radius: 20px; overflow: hidden; box-shadow: 0 8px 30px rgba(0,0,0,0.07); transition: transform 0.3s; }
.notice-panel:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,0.1); }
.np-header { background: var(--primary); padding: 20px 26px; display: flex; align-items: center; justify-content: space-between; }
.np-header h3 { color: white; font-size: 18px; font-weight: 700; }
.np-header a { color: var(--gold); font-size: 12px; font-family: 'Montserrat', sans-serif; font-weight: 600; text-decoration: none; }
.np-body { padding: 8px 0; max-height: 360px; overflow-y: auto; }
.notice-item { display: flex; gap: 16px; padding: 16px 26px; border-bottom: 1px solid rgba(0,0,0,0.05); transition: background 0.2s; cursor: pointer; text-decoration: none; }
.notice-item:hover { background: #f8faff; padding-left: 30px; }
.notice-date { flex-shrink: 0; text-align: center; background: var(--light); border-radius: 10px; padding: 8px 12px; min-width: 52px; height: max-content;}
.nd-day { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 20px; color: var(--primary); line-height: 1; }
.nd-mon { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 600; color: #888; text-transform: uppercase; }
.notice-info .ni-title { font-size: 14px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 4px; transition: color 0.2s; }
.notice-item:hover .ni-title { color: var(--primary); }
.ni-cat { display: inline-block; font-size: 10px; font-family: 'Montserrat', sans-serif; font-weight: 600; text-transform: uppercase; padding: 2px 8px; border-radius: 4px; }
.cat-imp { background: rgba(200,16,46,0.1); color: var(--secondary); }
.cat-exam { background: rgba(26,26,110,0.1); color: var(--primary); }

/* ===== CONTACT ===== */
.contact-section { padding: 100px 0; background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 50px; align-items: start; }
.contact-info h3 { font-size: 28px; font-weight: 700; color: var(--primary); margin-bottom: 20px; }
.contact-info p { color: #555; font-size: 15px; line-height: 1.8; margin-bottom: 32px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 22px; align-items: flex-start; }
.ci-icon { width: 46px; height: 46px; background: rgba(26,26,110,0.08); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; color: var(--primary); }
.ci-label { font-size: 12px; color: #999; font-family: 'Montserrat', sans-serif; font-weight: 600; text-transform: uppercase; margin-bottom: 4px; }
.ci-value { font-size: 15px; font-weight: 600; color: var(--text); }
.contact-form { background: white; border-radius: 24px; padding: 40px; box-shadow: 0 16px 50px rgba(0,0,0,0.08); border: 1px solid rgba(0,0,0,0.05); }
.contact-form h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: #555; margin-bottom: 7px; font-family: 'Montserrat', sans-serif; }
.form-input { width: 100%; padding: 12px 16px; border: 1.5px solid #e2e8f0; border-radius: 10px; font-size: 14px; font-family: 'Hind Siliguri', sans-serif; outline: none; transition: border 0.2s, box-shadow 0.2s; }
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,26,110,0.1); }
.form-group.full { margin-bottom: 16px; }
textarea.form-input { min-height: 110px; resize: vertical; }

/* ===== FOOTER ===== */
footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand .fn { font-size: 22px; font-weight: 700; color: white; margin-bottom: 12px; }
.footer-col h4 { color: white; font-size: 15px; font-weight: 700; margin-bottom: 18px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--gold); padding-left: 5px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 12px; font-family: 'Montserrat', sans-serif; text-align: center; }

/* Scroll Top Button */
.scroll-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; background: var(--primary); color: white; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; cursor: pointer; box-shadow: 0 8px 24px rgba(26,26,110,0.3); z-index: 999; transition: all 0.3s; opacity: 0; pointer-events: none; }
.scroll-top.visible { opacity: 1; pointer-events: all; }
.scroll-top:hover { background: var(--secondary); transform: translateY(-5px); }


/* ==================================================
   RESPONSIVE DESIGN (PC, Tablet, Mobile)
   ================================================== */

@media (max-width: 1024px) {
  .hero-content { max-width: 100%; text-align: center; display: flex; flex-direction: column; align-items: center; }
  .hero-visual { display: none; } 
  .hero-stats { justify-content: center; gap: 15px; }
  .hero-address { justify-content: center; }
  .hero-btns { justify-content: center; }
  .border-left { border-left: none; padding-left: 0; }
  .admissions-grid, .contact-grid, .notice-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-logo-text .bn { font-size: 16px; }
  .hero { padding: 60px 0; min-height: auto; }
  .hero h1 { font-size: 32px; }
  .hero h2 { font-size: 14px; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-item { padding: 10px; background: rgba(255,255,255,0.05); border-radius: 12px; width: 100%; max-width: 250px; }
  .section-title { font-size: 24px; }
  .section-header { margin-bottom: 40px; }
  .result-widget { padding: 30px 20px; }
  .result-tabs { flex-direction: column; }
  .result-row { flex-direction: column; text-align: left; gap: 5px; }
  .result-row .value { text-align: left; }
  .form-row { grid-template-columns: 1fr; gap: 16px; }
  .contact-form { padding: 24px 20px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-bottom { flex-direction: column; justify-content: center; }
}