/* =============================================
   NOOR-E-ALAM — style.css
   ============================================= */

:root {
  --brand-primary: #7C3AED;
  --brand-primary-light: #8B5CF6;
  --brand-accent: #06B6D4;
  --brand-dark: #0F0A1E;
  --brand-dark-2: #1A1030;
  --brand-card: #1E1535;
  --brand-card-border: rgba(124, 58, 237, 0.25);
  --brand-text-muted: rgba(255,255,255,0.55);
  --gradient-primary: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--brand-dark);
  color: #fff;
  overflow-x: hidden;
  width: 100%;
  position: relative;
}

h1,h2,h3,h4,h5,h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
}

.display-headline {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.section-label {
  font-size: 0.90rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-accent);
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn-brand-primary {
  background: var(--gradient-primary);
  border: none;
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  box-shadow: 0 0 40px rgba(124,58,237,0.4);
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
}
.btn-brand-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(124,58,237,0.6);
  color: #fff;
}

.btn-brand-outline {
  background: transparent;
  border: 2px solid rgba(124,58,237,0.6);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}
.btn-brand-outline:hover {
  border-color: var(--brand-primary);
  background: rgba(124,58,237,0.15);
  color: #fff;
  transform: translateY(-2px);
}

.site-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 9999;
  padding: 1.1rem 0;
  transition: all 0.4s ease;
  background: transparent;
}
.site-navbar.scrolled {
  background: rgba(15,10,30,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(124,58,237,0.2);
  padding: 0.7rem 0;
}
.navbar-brand-logo {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}
.nav-link-custom {
  color: rgba(255,255,255,0.75) !important;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s;
  text-decoration: none;
  padding: 0.4rem 0.9rem !important;
}
.nav-link-custom:hover { color: #fff !important; }

.nav-toggler {
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.35);
  border-radius: 10px;
  color: #fff;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  cursor: pointer;
  transition: all 0.2s;
}
.nav-toggler:hover {
  background: rgba(124,58,237,0.3);
  border-color: rgba(124,58,237,0.6);
}

.offcanvas-nav {
  background: #13082A !important;
  border-left: 1px solid rgba(124,58,237,0.25) !important;
  width: 300px !important;
}
.offcanvas-nav .offcanvas-header {
  border-bottom: 1px solid rgba(124,58,237,0.15);
  padding: 1.25rem 1.5rem;
}
.offcanvas-nav .offcanvas-header .btn-close {
  filter: none;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  opacity: 1;
  transition: all 0.2s;
  padding: 0;
}
.offcanvas-nav .offcanvas-header .btn-close:hover {
  background: rgba(124,58,237,0.25);
  border-color: rgba(124,58,237,0.5);
  color: #fff;
}
.offcanvas-nav .offcanvas-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.offcanvas-nav .nav-link-custom {
  font-size: 1rem !important;
  padding: 0.85rem 1rem !important;
  border-radius: 12px;
  display: block;
  border: 1px solid transparent;
  transition: all 0.2s;
}
.offcanvas-nav .nav-link-custom:hover {
  background: rgba(124,58,237,0.12);
  border-color: rgba(124,58,237,0.2);
  color: #fff !important;
}
.offcanvas-nav .divider-gradient { margin: 0.75rem 0; }
.offcanvas-nav .btn-brand-primary {
  display: block;
  text-align: center;
  margin-top: 0.5rem;
  font-size: 0.95rem !important;
  padding: 0.85rem 1.5rem !important;
}

.hero-section {
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 60% 0%, rgba(124,58,237,0.35) 0%, transparent 60%),
    radial-gradient(ellipse at 10% 80%, rgba(6,182,212,0.2) 0%, transparent 50%),
    linear-gradient(180deg, #0F0A1E 0%, #0F0A1E 100%);
  display: flex;
  align-items: center;
  padding: 7rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
  top: -100px; right: -100px;
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.4);
  border-radius: 50px;
  padding: 0.4rem 1rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: #c4b5fd;
  margin-bottom: 1.5rem;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #7C3AED;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:0.5; transform:scale(1.4); }
}

.hero-stat-card {
  background: rgba(30,21,53,0.85);
  border: 1px solid var(--brand-card-border);
  border-radius: 16px;
  padding: 1.2rem 1.5rem;
  backdrop-filter: blur(10px);
}
.hero-stat-card .stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
  margin-top: 0.25rem;
  font-weight: 600;
}

.hero-mockup {
  border-radius: 24px;
  overflow: hidden;
  aspect-ratio: 4/5;
}
.platform-chip {
  background: rgba(6,182,212,0.12);
  border: 1px solid rgba(6,182,212,0.3);
  border-radius: 50px;
  padding: 0.25rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: #67E8F9;
  display: inline-block;
}

section { padding: 5rem 0; }
.section-dark    { background: var(--brand-dark); }
.section-darker  { background: var(--brand-dark-2); }

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--brand-text-muted);
  max-width: 560px;
  line-height: 1.7;
}

.trusted-section {
  background: var(--brand-dark-2);
  border-top: 1px solid rgba(124,58,237,0.12);
  border-bottom: 1px solid rgba(124,58,237,0.12);
  padding: 3rem 0;
}
.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  transition: all 0.3s;
  text-decoration: none;
}
.platform-badge:hover {
  border-color: rgba(124,58,237,0.5);
  background: rgba(124,58,237,0.1);
  color: #fff;
  transform: translateY(-2px);
}
.spec-pill {
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 50px;
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #c4b5fd;
  display: inline-block;
}

.fail-card {
  background: var(--brand-card);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: 20px;
  padding: 2rem;
  height: 100%;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.fail-card::before {
  content: '';
  position: absolute; top:0; left:0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, #EF4444, #DC2626);
}
.fail-card:hover { transform: translateY(-4px); border-color: rgba(239,68,68,0.4); }
.fail-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(239,68,68,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: #EF4444;
  margin-bottom: 1rem;
}

.framework-step {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 20px;
  padding: 2rem;
  position: relative;
  transition: all 0.3s ease;
  height: 100%;
}
.framework-step:hover {
  border-color: var(--brand-primary);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(124,58,237,0.2);
}
.framework-step-num {
  font-size: 0.72rem; font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--brand-primary-light);
  margin-bottom: 0.75rem;
}
.framework-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(6,182,212,0.15));
  border: 1px solid rgba(124,58,237,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.concept-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.35s ease;
  height: 100%;
}
.concept-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124,58,237,0.5);
  box-shadow: 0 20px 60px rgba(124,58,237,0.2);
}
.concept-card-thumb {
  aspect-ratio: 9/16;
  overflow: hidden;
  position: relative;
}
/* ১০৮০x১০৮০ ভিডিওর জন্য মডিফায়ার ক্লাস */
.concept-card-thumb.is-square {
  aspect-ratio: 1/1; /* এটি ৯:১৬ কে ওভাররাইড করে ১:১ (১০৮০x১০৮০) করবে */
}

/* ভিডিও ট্যাগ যেন কন্টেইনারের পুরো জায়গা কভার করে */
.concept-card-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover; /* ভিডিওর ফ্রেম যেন ভেঙে না যায় এবং কার্ড সুন্দর দেখায় */
  position: absolute;
  top: 0;
  left: 0;
}
.concept-thumb-visual {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
}
.concept-thumb-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(15,10,30,0.9) 100%);
}
.concept-platform-tag {
  position: absolute; top: 12px; left: 12px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  border-radius: 50px;
  padding: 0.25rem 0.75rem;
  font-size: 0.7rem; font-weight: 700;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
}
.concept-card-body { padding: 1.25rem; }
.concept-card-body h5 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; }
.concept-card-body p  { font-size: 0.8rem; color: var(--brand-text-muted); line-height: 1.6; margin-bottom: 0.75rem; }
.concept-metric {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.75rem; font-weight: 700; color: #4ADE80;
}

.insight-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s;
  height: 100%;
}
.insight-card:hover { border-color: rgba(6,182,212,0.4); transform: translateY(-3px); }
.insight-number {
  font-size: 2.5rem; font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1; margin-bottom: 0.5rem;
}
.insight-bar {
  height: 6px; border-radius: 3px;
  background: rgba(255,255,255,0.06);
  overflow: hidden; margin: 0.75rem 0;
}
.insight-bar-fill {
  height: 100%; border-radius: 3px;
  background: var(--gradient-primary);
  width: 0;
  transition: width 1.5s ease;
}

.before-after-container {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 24px;
  overflow: hidden;
}
.before-panel { padding: 2.5rem; background: rgba(239,68,68,0.04); }
.after-panel  { padding: 2.5rem; background: rgba(124,58,237,0.04); }

.ba-label {
  display: inline-block;
  font-size: 0.65rem; font-weight: 800;
  letter-spacing: 0.15em;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  margin-bottom: 1.25rem;
}
.ba-label.before { background: rgba(239,68,68,0.15); color: #FCA5A5; border: 1px solid rgba(239,68,68,0.3); }
.ba-label.after  { background: rgba(124,58,237,0.15); color: #C4B5FD; border: 1px solid rgba(124,58,237,0.3); }

.ba-item {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem;
}
.ba-item:last-child { border-bottom: none; }
.ba-item i { margin-top: 2px; flex-shrink: 0; }

.service-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 20px;
  padding: 2rem;
  height: 100%;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.service-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s ease;
}
.service-card:hover::after  { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,58,237,0.45);
  box-shadow: 0 20px 60px rgba(124,58,237,0.15);
}
.service-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(6,182,212,0.1));
  border: 1px solid rgba(124,58,237,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; margin-bottom: 1.25rem;
}
.service-badge {
  position: absolute; top: -1px; right: 1.5rem;
  background: var(--gradient-primary);
  font-size: 0.65rem; font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border-radius: 0 0 10px 10px;
  color: #fff;
}

.service-tag {
  display: inline-block;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 50px;
  padding: 0.2rem 0.65rem;
  font-size: 0.7rem; font-weight: 600; color: #c4b5fd;
  margin: 0.15rem;
}

.audit-cta-section {
  background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(6,182,212,0.08) 100%);
  border-top: 1px solid rgba(124,58,237,0.2);
  border-bottom: 1px solid rgba(124,58,237,0.2);
}
.audit-checklist-item {
  display: flex; align-items: center; gap: 0.75rem;
}
.audit-checklist-item i {
  color: #7C3AED; font-size: 1.1rem; flex-shrink: 0;
}
.audit-checklist-item span {
  font-size: 0.9rem; color: rgba(255,255,255,0.75);
}
.audit-form-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 24px;
  padding: 2.5rem;
}
.audit-form-card label {
  font-size: 0.82rem; font-weight: 600;
  color: rgba(255,255,255,0.7); margin-bottom: 0.4rem;
  display: block;
}
.audit-form-card .form-control,
.audit-form-card .form-select {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px; color: #fff;
  padding: 0.8rem 1rem; font-size: 0.9rem;
  width: 100%;
}
.audit-form-card .form-control::placeholder { color: rgba(255,255,255,0.3); }
.audit-form-card .form-control:focus,
.audit-form-card .form-select:focus {
  background: rgba(255,255,255,0.07);
  border-color: rgba(124,58,237,0.5);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
  color: #fff; outline: none;
}
.audit-form-card .form-select option { background: #1E1535; color: #fff; }

.form-message {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  margin-top: 1rem;
  text-align: center;
}
.form-message.success {
  background: rgba(74,222,128,0.12);
  border: 1px solid rgba(74,222,128,0.3);
  color: #4ADE80;
}
.form-message.error {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.3);
  color: #FCA5A5;
}

.faq-section { background: var(--brand-dark-2); }
.faq-item {
  background: var(--brand-card);
  border: 1px solid var(--brand-card-border);
  border-radius: 16px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item.active { border-color: rgba(124,58,237,0.5); }
.faq-question {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex; align-items: center;
  justify-content: space-between; gap: 1rem;
  font-weight: 600; font-size: 0.95rem;
  user-select: none; transition: background 0.2s;
}
.faq-question:hover { background: rgba(124,58,237,0.06); }
.faq-icon {
  flex-shrink: 0; width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(124,58,237,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; color: #8B5CF6;
  transition: all 0.3s;
}
.faq-item.active .faq-icon {
  background: var(--brand-primary);
  transform: rotate(45deg); color: #fff;
}
.faq-answer {
  display: none;
  padding: 0 1.5rem 1.5rem;
  color: var(--brand-text-muted);
  font-size: 0.9rem; line-height: 1.8;
}

.final-cta-section { background: var(--brand-dark); position: relative; overflow: hidden; }
.final-cta-section::before {
  content: '';
  position: absolute;
  width: 800px; height: 800px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  top: 50%; left: 50%; transform: translate(-50%,-50%);
  pointer-events: none;
}
.cta-glow-box {
  background: linear-gradient(135deg,rgba(124,58,237,0.08),rgba(6,182,212,0.05));
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: 32px; padding: 4rem;
  position: relative; overflow: hidden; text-align: center;
}
.cta-glow-box::before {
  content: '';
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 2px;
  background: var(--gradient-primary);
}
.cta-trust-item {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.82rem; color: rgba(255,255,255,0.5);
}
.cta-trust-item i { color: var(--brand-primary-light); }

.site-footer {
  background: var(--brand-dark-2);
  border-top: 1px solid rgba(124,58,237,0.15);
  padding: 3rem 0 1.5rem;
}
.footer-logo { font-size:1.3rem; font-weight:800; background:var(--gradient-primary); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; text-decoration:none; }
.footer-heading { font-size:0.78rem; font-weight:700; letter-spacing:0.1em; color:rgba(255,255,255,0.5); text-transform:uppercase; margin-bottom:1rem; }
.footer-link {
  color: var(--brand-text-muted); text-decoration: none;
  font-size: 0.88rem; transition: color 0.2s;
  display: block; margin-bottom: 0.5rem;
}
.footer-link:hover { color: #fff; }
.social-links a { margin-right: 8px; }
.social-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1rem; color: rgba(255,255,255,0.6);
  text-decoration: none; transition: all 0.2s;
}
.social-icon:hover {
  background: rgba(124,58,237,0.2);
  border-color: rgba(124,58,237,0.5);
  color: #fff; transform: translateY(-2px);
}
.footer-newsletter-input {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px; color: #fff; font-size: 0.85rem;
  flex: 1;
  padding: 0.6rem 1rem;
}
.footer-copyright { font-size:0.78rem; color:rgba(255,255,255,0.25); margin:0; }
.footer-legal-link { font-size:0.78rem; color:rgba(255,255,255,0.25); text-decoration:none; }

.divider-gradient {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124,58,237,0.4), transparent);
  margin: 1.5rem 0;
}

@media (max-width: 768px) {
  .nav-toggler { margin-right: 24px; }
  .hero-section { padding: 6rem 0 3rem; text-align: center; }
  .cta-glow-box { padding: 2.5rem 1.5rem; }
  .before-panel, .after-panel { padding: 1.75rem; }
  section { padding: 3.5rem 0; }
  .display-headline { font-size: 2rem; }
}