@import url('https://fonts.googleapis.com/css2?family=Tiro+Bangla:ital,wght@0,400;1,400&family=Hind+Siliguri:wght@400;600&display=swap');

:root {
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.75rem;
  --font-size-hero: 3.5rem;
  --line-height-tight: 1.2;
  --line-height-base: 1.8;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --color-primary: #C01800;
  --color-secondary: #6A1208;
  --color-accent: #D87800;
  --color-bg: #080400;
  --color-bg-alt: #160B06;
  --color-bg-card: #120804;
  --color-text: #FFF0E8;
  --color-text-muted: #C89A7D;
  --color-text-on-primary: #FFFFFF;
  --color-border: #4A2316;
  --color-shadow: #2A120A;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.25rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --radius-sm: 0.5rem;
  --radius: 0.625rem;
  --radius-lg: 1rem;
  --header-height: 4rem;
  --shadow-sm: 0 0.25rem 0.75rem var(--color-shadow);
  --shadow-md: 0 0.75rem 2rem var(--color-shadow);
  --shadow-lg: 0 1.25rem 3rem var(--color-shadow);
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  max-width: 100%;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Hind Siliguri', sans-serif;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-base);
  text-rendering: optimizeLegibility;
}

img,
video,
iframe {
  max-width: 100%;
  height: auto;
  display: block;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-3);
  font-family: 'Tiro Bangla', serif;
  font-style: italic;
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: 0.01em;
}

h1 {
  font-size: var(--font-size-3xl);
}

h2,
.section-title {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

p {
  margin: 0 0 var(--space-3);
  color: var(--color-text);
}

a {
  color: #E8E8E8;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition), border-color var(--transition), background var(--transition), transform var(--transition), filter var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

em {
  font-style: italic;
}

ul,
ol {
  margin: 0 0 var(--space-4);
  padding-left: 1.25rem;
  color: var(--color-text);
}

li {
  margin-bottom: 0.35rem;
}

.container {
  width: 100%;
  max-width: 1140px;
  padding: 0 1rem;
  margin: 0 auto;
  box-sizing: border-box;
}

.section {
  position: relative;
  padding: 4rem 0;
}

.section:not(:first-child)::before {
  content: "";
  position: absolute;
  top: -24px;
  left: 0;
  width: 100%;
  height: 24px;
  background: radial-gradient(circle at 50% 100%, var(--color-bg) 24px, var(--color-bg-alt) 25px);
  background-size: 48px 24px;
  background-repeat: repeat-x;
  pointer-events: none;
}

.section:not(.hero):nth-of-type(even) {
  background: var(--color-bg-alt);
}

.section-title {
  margin-bottom: var(--space-5);
  text-align: center;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 5rem;
  height: 0.2rem;
  margin: 0.75rem auto 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
}

.site-header {
  position: sticky;
  top: 0;
  min-height: 64px;
  background: linear-gradient(180deg, var(--color-secondary), var(--color-bg));
  border-bottom: 1px solid var(--color-border);
  overflow: visible;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
}

.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  overflow: hidden;
  max-height: 52px;
  text-decoration: none;
}

.site-logo img {
  height: 40px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  display: block;
}

.nav-toggle-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

.nav-toggle-label {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
  padding: 0.4rem 0.6rem;
  z-index: 200;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.45);
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  transition: transform var(--transition), background var(--transition);
}

.nav-toggle-label:hover {
  transform: translateY(-1px);
}

.nav-toggle-label span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: 0.2s ease;
}

.nav-toggle-input:checked + .nav-toggle-label span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle-input:checked + .nav-toggle-label span:nth-child(2) {
  opacity: 0;
}

.nav-toggle-input:checked + .nav-toggle-label span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  z-index: 500;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  overflow: visible;
}

.nav-toggle-input:checked ~ .site-nav {
  display: block;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0.5rem 0;
  margin: 0;
  list-style: none;
  overflow: visible;
}

.nav-item {
  margin: 0;
}

.nav-dropdown {
  position: relative;
  overflow: visible;
}

.nav-link {
  position: relative;
  display: block;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-on-primary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.45rem;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-dropdown-toggle:hover::after,
.nav-dropdown-toggle:focus-visible::after {
  transform: scaleX(1);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-dropdown-toggle:hover,
.nav-dropdown-toggle:focus-visible {
  color: var(--color-accent);
}

.nav-dropdown-toggle {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.nav-dropdown-menu {
  display: none;
  position: static;
  min-width: 200px;
  z-index: 9999;
  list-style: none;
  margin: 0;
  padding: 0 0 0 1rem;
  background: var(--color-bg-card);
  border: none;
  border-radius: var(--radius);
  box-shadow: none;
  white-space: nowrap;
}

.nav-dropdown:hover > .nav-dropdown-menu,
.nav-dropdown:focus-within > .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-menu .nav-link {
  display: block;
  padding: 0.5rem 1.25rem;
  width: 100%;
  border-bottom: none;
}

.nav-dropdown-menu .nav-link:hover,
.nav-dropdown-menu .nav-link:focus-visible {
  background: var(--color-bg-alt);
}

.hero {
  min-height: 50vh;
  padding: 2rem 1rem;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 55%, var(--color-accent) 100%);
  color: #1A1A1A;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: auto;
  pointer-events: none;
}

.hero::before {
  top: -10%;
  left: -5%;
  width: 18rem;
  height: 18rem;
  background: radial-gradient(circle, var(--color-accent), transparent 70%);
  opacity: 0.18;
  filter: blur(10px);
}

.hero::after {
  right: -4rem;
  bottom: -5rem;
  width: 20rem;
  height: 20rem;
  background: radial-gradient(circle, var(--color-primary), transparent 72%);
  opacity: 0.22;
  filter: blur(16px);
}

.hero h1 {
  font-size: var(--font-size-2xl);
  word-break: break-word;
}

.hero p {
  font-size: var(--font-size-base);
}

.hero-och-wrap {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-och-wrap h1 {
  color: var(--color-text);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 0.5rem;
}

.hero-och-wrap > p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.hero-och-card {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  padding: 2.5rem 1.5rem;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-och-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.08) 100%);
  pointer-events: none;
}

.hero-och-tag {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background: rgba(255, 255, 255, 0.18);
  color: #1A1A1A;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-och-big {
  display: block;
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--color-text-on-primary);
  margin-bottom: 0.75rem;
}

.hero-och-sub {
  color: var(--color-text-on-primary);
  opacity: 0.92;
  margin-bottom: 1.5rem;
}

.hero-och-card .btn {
  background: var(--color-bg);
  color: var(--color-text);
}

.hero-text-card {
  background: var(--color-bg-card);
  color: var(--color-text);
}

.hero-text-card h1,
.hero-text-card p {
  color: var(--color-text);
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  background: linear-gradient(180deg, var(--color-bg-card), var(--color-bg-alt));
  color: var(--color-text);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.card::before {
  content: "";
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 6px rgba(192, 24, 0, 0.12);
  z-index: 1;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  filter: brightness(1.03);
}

.card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  border-radius: var(--radius) var(--radius) 0 0;
}

.card-body {
  padding: 1rem 1.25rem;
}

.card > :not(img) {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.card > h3,
.card > h4,
.card > p,
.card > a,
.card > ul,
.card > ol,
.card > div:not(.card-body) {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.card > h3,
.card > h4,
.card > p,
.card > a:first-of-type,
.card > div:not(.card-body):first-of-type {
  padding-top: 1rem;
}

.card > p:last-child,
.card > a:last-child,
.card > div:not(.card-body):last-child,
.card > ul:last-child,
.card > ol:last-child {
  padding-bottom: 1rem;
}

.card h3,
.card h4 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.card p {
  margin: 0;
  line-height: var(--line-height-base);
  color: var(--color-text-muted);
}

.btn {
  display: inline-block;
  max-width: 100%;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  white-space: normal;
  word-break: break-word;
  transition: 0.2s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: var(--color-text-on-primary);
  filter: brightness(0.9);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary);
}

.site-footer {
  background: linear-gradient(180deg, var(--color-bg-alt), var(--color-bg));
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: center;
  align-items: center;
  justify-content: space-between;
}

.footer-inner a {
  color: #E8E8E8;
}

.footer-inner .btn-primary {
  color: var(--color-text-on-primary) !important;
}

.footer-inner .btn-secondary {
  color: var(--color-primary) !important;
}

.faq-section {
  padding: 4rem 0;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: var(--color-bg-card);
  overflow: hidden;
  transition: 0.2s ease;
}

.faq-item[open] {
  border-color: var(--color-primary);
  box-shadow: 0 2px 12px var(--color-shadow);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
  list-style: none;
  user-select: none;
  position: relative;
  padding-right: 2rem;
  color: var(--color-text);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 300;
  color: #E8E8E8;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] > .faq-question::after {
  content: "−";
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.faq-answer p {
  margin: 0.75rem 0 0;
  color: var(--color-text-muted);
  line-height: var(--line-height-base);
}

label {
  display: inline-block;
  margin-bottom: 0.4rem;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-shadow);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

button[type="submit"] {
  display: inline-block;
  padding: 0.85rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: 0.2s ease;
}

button[type="submit"]:hover,
button[type="submit"]:focus-visible {
  filter: brightness(0.9);
  transform: translateY(-2px);
}

table {
  width: 100%;
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  color: var(--color-text);
}

th,
td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
  color: var(--color-text);
}

th {
  font-weight: var(--font-weight-bold);
  background: var(--color-bg-alt);
}

tr:nth-child(even) {
  background: var(--color-bg-alt);
}

tr:nth-child(odd) {
  background: var(--color-bg);
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.compare-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  text-align: left;
}

.compare-table th,
.compare-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.compare-table thead th {
  background: var(--color-bg-alt);
  font-weight: var(--font-weight-bold);
}

.compare-table tbody tr:nth-child(even) {
  background: var(--color-bg-alt);
}

.compare-table tbody tr:nth-child(odd) {
  background: var(--color-bg);
}

.compare-table td:first-child {
  font-weight: var(--font-weight-medium);
}

.fa-circle-check {
  color: #4ADE80;
}

.fa-circle-xmark {
  color: #F87171;
}

.fa-star {
  color: #F59E0B;
}

.card .fa-solid,
.section .fa-2x {
  color: var(--color-accent);
}

.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 1.5rem;
}

.mt-4 {
  margin-top: 2rem;
}

.hidden {
  display: none !important;
}

@media (min-width: 768px) {
  .container {
    max-width: 960px;
    padding: 0 1.5rem;
    margin: 0 auto;
  }

  .site-header .container {
    justify-content: flex-start;
  }

  .site-logo img {
    height: 44px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
    display: block;
  }

  .nav-toggle-label {
    display: none !important;
  }

  .site-nav {
    display: flex !important;
    align-items: center;
    position: static;
    background: transparent;
    border-top: none;
    box-shadow: none;
    flex: 1;
    justify-content: center;
    overflow: visible;
  }

  .nav-list {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 0;
    margin: 0;
    list-style: none;
  }

  .nav-link {
    display: inline-block;
    font-size: var(--font-size-sm);
    padding: 0.4rem 0.75rem;
    border-bottom: none;
    white-space: nowrap;
  }

  .nav-link::after {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.1rem;
  }

  .nav-dropdown-menu {
    position: absolute !important;
    top: 100%;
    left: 0;
    z-index: 9999;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    border: 1px solid var(--color-border);
    padding: 0.5rem 0;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    min-width: 200px;
  }

  .hero {
    min-height: 60vh;
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }

  .footer-inner {
    flex-direction: row;
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1200px;
    padding: 0 2rem;
    margin: 0 auto;
  }

  .hero {
    min-height: 70vh;
  }

  .hero h1 {
    font-size: var(--font-size-hero);
  }

  .section {
    padding: 4rem 0;
  }
}
.hero .btn-secondary{color:var(--color-text-on-primary);border-color:var(--color-text-on-primary);}