:root {
  --red: hsl(0 72% 51%);
  --red-dark: hsl(0 72% 44%);
  --red-soft: #fee2e2;
  --navy: #0f172a;
  --navy-footer: #1e293b;
  --yellow: #facc15;
  --yellow-hover: #eab308;
  --muted: #f8fafc;
  --text: #475569;
  --text-dark: #0f172a;
  --white: #ffffff;
  --shadow: 0 10px 40px -15px rgba(15, 23, 42, 0.12);
  --radius-pill: 9999px;
  --radius-card: 16px;
  --radius-icon: 12px;
  --font: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, sans-serif;
  --site-header-height: 72px;
  --container-max: 1280px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header */
.site-header {
  background: var(--white);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06);
}

.site-header--fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}

.logo-mark {
  flex-shrink: 0;
  display: flex;
  line-height: 0;
}

.logo-mark svg circle {
  fill: var(--red);
}

.logo-word {
  color: var(--text-dark);
}

.logo-footer .logo-word {
  color: var(--white);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-pill);
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-header {
  position: relative;
  background: var(--red);
  color: var(--white);
  padding: 0.65rem 1.25rem;
  white-space: nowrap;
}

.btn-header:hover {
  background: var(--red-dark);
}

.btn-header-text {
  display: inline;
}

/* Hero — full viewport (100svh); fixed header sits on top; image edge-to-edge */
.hero {
  position: relative;
  width: 100%;
  box-sizing: border-box;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: var(--site-header-height) 0 clamp(2rem, 5vh, 4rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: #2a1010;
  background-image: url("images/hero-plane.png?v=20260327");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: 76% 38%;
  transform: scale(1.03);
  transform-origin: center center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 65% at 50% 100%, rgba(255, 210, 140, 0.28) 0%, transparent 52%),
    linear-gradient(
      100deg,
      rgba(15, 12, 18, 0.82) 0%,
      rgba(15, 12, 18, 0.42) 36%,
      rgba(35, 18, 22, 0.12) 52%,
      transparent 72%
    );
}

.hero .container.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.hero-copy {
  max-width: 36.5rem;
}

.badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
}

.badge-hero {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.4rem;
  margin: 0 0 1.35rem;
  padding: 0.5rem 1.1rem;
  background: #fcd34d;
  color: #1c1917;
  border: 1px solid rgba(180, 83, 9, 0.22);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}

.badge-hero-icon {
  flex-shrink: 0;
  stroke: #1c1917;
  animation: icon-clock-swing 3s ease-in-out infinite;
}

.hero h1 {
  margin: 0 0 1.1rem;
  font-size: clamp(2.35rem, 5.5vw, 3.65rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--white);
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero-lead {
  margin: 0 0 1.85rem;
  font-size: clamp(1.05rem, 1.9vw, 1.2rem);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.94);
  max-width: 34rem;
}

.btn-hero {
  background: var(--red);
  color: var(--white);
  padding: 1.05rem 1.85rem;
  font-size: 1.0625rem;
  font-weight: 700;
}

.btn-hero:hover {
  background: var(--red-dark);
  box-shadow: 0 12px 32px -8px rgba(220, 38, 38, 0.55);
}

/* মোবাইল-ওনলি নিচের লাল বার + হলুদ কল বাটন (ডেস্কটপে লুকানো) */
.mobile-call-dock {
  display: none;
}

.hero-trust {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 1.5rem 2rem;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.9375rem;
  font-weight: 500;
}

.hero-trust svg {
  flex-shrink: 0;
}

.hero-trust .icon-anim--shield,
.hero-trust .icon-anim--clock {
  color: #fbbf24;
  stroke: #fbbf24;
  opacity: 1;
}

/* Icon animations (phone ring wiggle, shield pulse, clock tick) */
.icon-anim {
  transform-box: fill-box;
  transform-origin: center;
}

@keyframes icon-phone-ring {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
  }
  10% {
    transform: rotate(-12deg) scale(1.05);
  }
  20% {
    transform: rotate(12deg) scale(1.05);
  }
  30% {
    transform: rotate(-8deg) scale(1.02);
  }
  40% {
    transform: rotate(8deg) scale(1.02);
  }
  50% {
    transform: rotate(0deg) scale(1);
  }
}

.icon-anim--phone {
  animation: icon-phone-ring 2.8s ease-in-out infinite;
}

@keyframes icon-shield-breathe {
  0%,
  100% {
    transform: scale(1);
    filter: drop-shadow(0 0 0 transparent);
  }
  50% {
    transform: scale(1.1);
    filter: drop-shadow(0 0 6px rgba(251, 191, 36, 0.45));
  }
}

.icon-anim--shield {
  animation: icon-shield-breathe 2.2s ease-in-out infinite;
}

@keyframes icon-clock-swing {
  0%,
  100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(6deg);
  }
  75% {
    transform: rotate(-6deg);
  }
}

.icon-anim--clock {
  animation: icon-clock-swing 2s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .icon-anim,
  .badge-hero-icon {
    animation: none !important;
  }

  .hero-trust .icon-anim--shield,
  .hero-trust .icon-anim--clock {
    filter: none;
  }
}

/* Trust strip */
.trust-strip {
  padding: 3.5rem 0;
  background: var(--white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

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

.trust-icon-wrap {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--red-soft);
  border-radius: var(--radius-icon);
  color: var(--red);
}

.trust-item h3 {
  margin: 0 0 0.25rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-dark);
}

.trust-item p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-muted {
  background: var(--muted);
}

.section-head {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 3rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}

.section-sub {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--text);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--red-soft);
  border-radius: var(--radius-icon);
  color: var(--red);
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-dark);
}

.feature-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text);
  line-height: 1.65;
}

/* Steps */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 0.5rem;
}

.steps-line {
  display: none;
}

.step {
  text-align: center;
  position: relative;
  padding-top: 0.5rem;
}

.step-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--yellow);
  color: var(--text-dark);
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  z-index: 2;
}

.step-circle {
  width: 88px;
  height: 88px;
  margin: 1rem auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--red-soft);
  border-radius: 50%;
  color: var(--red);
}

.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-dark);
}

.step p {
  margin: 0 auto;
  max-width: 280px;
  font-size: 0.9375rem;
  color: var(--text);
}

@media (min-width: 900px) {
  .steps-line {
    display: block;
    position: absolute;
    top: calc(1rem + 44px);
    left: 18%;
    right: 18%;
    height: 0;
    border-top: 2px dotted rgba(220, 38, 38, 0.35);
    pointer-events: none;
  }
}

/* CTA band */
.cta-band {
  position: relative;
  padding: 4.5rem 0;
  background: linear-gradient(160deg, var(--red) 0%, #b91c1c 100%);
  overflow: hidden;
}

.cta-decor {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.cta-decor-1 {
  width: 280px;
  height: 280px;
  top: -120px;
  left: -80px;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.12) 0%, transparent 70%);
}

.cta-decor-2 {
  width: 220px;
  height: 220px;
  bottom: -80px;
  right: -40px;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.1) 0%, transparent 70%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.badge-cta {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-dark);
  margin-bottom: 1.25rem;
}

.cta-band h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.cta-lead {
  margin: 0 0 2rem;
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.65;
}

.btn-cta-yellow {
  background: var(--yellow);
  color: var(--text-dark);
  padding: 1rem 1.75rem;
  font-size: 1.0625rem;
}

.btn-cta-yellow:hover {
  background: var(--yellow-hover);
  box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.25);
}

/* Footer */
.site-footer {
  background: var(--navy-footer);
  padding: 2.5rem 0 2rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.logo-footer {
  color: var(--white);
}

.footer-phone {
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--white);
}

.footer-phone:hover {
  text-decoration: underline;
}

.footer-copy {
  margin: 0;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(148, 163, 184, 0.95);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1rem;
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 900px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .steps-line {
    display: none;
  }
}

@media (max-width: 560px) {
  :root {
    --site-header-height: 64px;
  }

  .hero-bg {
    background-position: 58% 36%;
    transform: scale(1.06);
  }

  .header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0;
    min-height: var(--site-header-height);
    gap: 0.75rem;
  }

  .logo {
    font-size: 1.05rem;
    min-width: 0;
  }

  .logo-mark svg {
    width: 36px;
    height: 36px;
  }

  /* গোল লাল বাটন — শুধু ফোন আইকন (মোবাইল রেফারেন্স) */
  .btn-header {
    width: 48px;
    height: 48px;
    min-width: 48px;
    padding: 0;
    border-radius: 50%;
    flex-shrink: 0;
  }

  .btn-header .icon-anim--phone {
    width: 22px;
    height: 22px;
  }

  .btn-header-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  body {
    padding-bottom: calc(4.25rem + env(safe-area-inset-bottom, 0px));
  }

  .mobile-call-dock {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 150;
    background: var(--red);
    padding: 0.65rem 1rem calc(0.65rem + env(safe-area-inset-bottom, 0px));
    box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.14);
  }

  .btn-mobile-call {
    width: 100%;
    max-width: 22rem;
    justify-content: center;
    background: #facc15;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 0.98rem;
    padding: 0.9rem 1.2rem;
    border: none;
    border-radius: var(--radius-pill);
    box-shadow: 0 2px 14px rgba(0, 0, 0, 0.12);
  }

  .btn-mobile-call:hover {
    background: var(--yellow-hover);
    color: var(--text-dark);
  }

  .btn-mobile-call .icon-anim--phone {
    stroke: var(--text-dark);
    color: var(--text-dark);
  }

  .site-footer {
    padding-bottom: calc(2rem + 4.25rem + env(safe-area-inset-bottom, 0px));
  }

  .trust-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 100vh;
    min-height: 100svh;
    padding-top: var(--site-header-height);
    padding-bottom: 2rem;
  }

  .btn-hero,
  .btn-cta-yellow {
    width: 100%;
    max-width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}