:root {
  --bg-main: #f6f4f1;
  --bg-soft: #efeae6;
  --bg-light: #ffffff;
  --bg-dark: #111111;
  --bg-dark-2: #1b1b1b;

  --primary: #8f100b;
  --primary-hover: #a5140e;
  --primary-soft: #f4dcda;

  --text-main: #1e1e1e;
  --text-soft: #666666;
  --text-light: #ffffff;

  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
  --shadow-strong: 0 24px 50px rgba(0, 0, 0, 0.14);

  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --transition: 0.28s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

/* TOPBAR */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 241, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar__content {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.topbar__back {
  font-weight: 700;
  color: var(--primary);
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.topbar__nav a {
  color: var(--text-soft);
  font-weight: 600;
  transition: var(--transition);
}

.topbar__nav a:hover {
  color: var(--primary);
}

.topbar__nav .topbar__cta {
  color: var(--text-light);
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--primary);
  border: 1px solid transparent;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 14px;
  font-weight: 800;
  transition: var(--transition);
  border: 1px solid transparent;
  text-align: center;
}

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

.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.btn--outline {
  border-color: rgba(0, 0, 0, 0.14);
  background: rgba(255, 255, 255, 0.7);
  color: var(--text-main);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 1);
}

.btn--outline-dark {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-light);
  background: transparent;
}

.btn--outline-dark:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* SECTION SHARED */
.section-heading {
  max-width: 820px;
  margin-bottom: 48px;
}

.section-heading--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
  color: var(--primary);
}

.section-tag--yellow,
.section-tag--dark {
  color: var(--primary);
}

.section-heading h2,
.hero h1,
.symptoms__left h2,
.home__text h2,
.data-panel__text h2,
.final__content h2 {
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.section-heading h2,
.symptoms__left h2,
.home__text h2,
.data-panel__text h2,
.final__content h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 18px;
}

.section-heading p,
.symptoms__left p,
.home__text p,
.data-panel__text p,
.final__content p {
  color: var(--text-soft);
  font-size: 1.05rem;
}

/* HERO */
.hero {
  position: relative;
  overflow: hidden;
  padding: 50px 0 60px;
  background: linear-gradient(180deg, #f6f4f1 0%, #efeae6 45%, #f6f4f1 100%);
}

.hero__bg-circle {
  position: absolute;
  border-radius: 999px;
  filter: blur(8px);
  opacity: 0.18;
}

.hero__bg-circle--one {
  width: 340px;
  height: 340px;
  background: var(--primary);
  top: -90px;
  left: -100px;
}

.hero__bg-circle--two {
  width: 260px;
  height: 260px;
  background: #000;
  bottom: 40px;
  right: -40px;
}

.hero__content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
}

.hero__eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 900;
  color: var(--primary);
}


.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
}

.hero h1 span {
  display: block;
}

.hero p {
  max-width: 640px;
  font-size: 1.08rem;
  color: #4e4e4e;
  margin-bottom: 30px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__visual {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__mosquito {
  width: 100%;
  max-width: 360px;
  object-fit: contain;
  border-radius: 24px;
  box-shadow: var(--shadow-strong);
}

.hero__card {
  position: absolute;
  left: -10px;
  bottom: 12px;
  max-width: 250px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.hero__card-label {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 10px;
}

.hero__card h3 {
  font-size: 1.2rem;
  line-height: 1.08;
  margin-bottom: 10px;
}

.hero__card p {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin-bottom: 0;
}

/* CYCLE */
.cycle-section {
  padding: 50px 0;
  background: var(--bg-light);
}

.cycle {
  position: relative;
  min-height: 700px;
  max-width: 900px;
  margin: 0 auto;
}

.cycle::before {
  content: "";
  position: absolute;
  inset: 90px 150px;
  border: 2px dashed rgba(143, 16, 11, 0.18);
  border-radius: 999px;
}

.cycle__center {
  position: absolute;
  inset: 42%;
  transform: translate(-20%, -50%);
}

.cycle__center-circle {
  width: 220px;
  height: 200px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), #b71b14);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 26px;
  color: #fff;
  font-size: 1.3rem;
  font-weight: 900;
  line-height: 1.1;
  box-shadow: var(--shadow);
}

.cycle__item {
  position: absolute;
  width: 220px;
  text-align: center;
}

.cycle__item--top {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.cycle__item--right {
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.cycle__item--bottom {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.cycle__item--left {
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.cycle__icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-weight: 900;
  box-shadow: var(--shadow);
}

.cycle__item h3 {
  font-size: 1.15rem;
  margin-bottom: 2px;
}

.cycle__item p {
  color: var(--text-soft);
  font-size: 0.97rem;
}

/* DISEASES */
.diseases-section {
  padding: 100px 0;
  background: var(--bg-soft);
}

.disease-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.disease-card {
  padding: 30px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  min-height: 100%;
}

.disease-card__number {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
}

.disease-card h3 {
  font-size: 1.9rem;
  line-height: 1;
  margin-bottom: 14px;
}

.disease-card p {
  margin-bottom: 18px;
}

.disease-card ul {
  display: grid;
  gap: 10px;
}

.disease-card li {
  position: relative;
  padding-left: 18px;
}

.disease-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
}

.disease-card--yellow {
  background: #940d0d;
  color: white;
  border-top: 5px solid #000000;
}

.disease-card--teal {
  background: #f8f2f1;
  color: var(--text-main);
  border-top: 5px solid #5c5c5c;
}

.disease-card--dark {
  background: var(--bg-dark);
  color: #ffffff;
  border-top: 5px solid #940d0d;
}

/* SYMPTOMS */
.symptoms-section {
  padding: 100px 0;
  background: var(--bg-light);
}

.symptoms__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: start;
}

.symptoms-box {
  background: #faf8f6;
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.symptoms-box__item {
  padding: 18px 0;
  border-bottom: 1px solid rgba(44, 9, 9, 0.08);
}

.symptoms-box__item:last-child {
  border-bottom: 0;
}

.symptoms-box__item strong {
  display: block;
  font-size: 1.12rem;
  margin-bottom: 4px;
}

.symptoms-box__item span {
  color: var(--text-soft);
}

.symptoms-alert {
  margin-top: 20px;
  padding: 22px;
  border-radius: 24px;
  background: var(--primary-soft);
  color: var(--text-main);
  box-shadow: var(--shadow);
}

.symptoms-alert h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  color: var(--primary);
}

/* PREVENTION */
.prevention-section {
  padding: 100px 0;
  background: var(--bg-dark);
  color: var(--text-light);
}

.prevention-section .section-heading p {
  color: rgba(255, 255, 255, 0.78);
}

.prevention-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.prevention-card {
  min-height: 220px;
  padding: 28px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.11);
}

.prevention-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.prevention-card p {
  color: rgba(255, 255, 255, 0.8);
}

.prevention-card--highlight {
  background: var(--primary);
  color: #fff;
}

.prevention-card--highlight p {
  color: rgba(255, 255, 255, 0.9);
}

/* HOME */
.home-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #f6f4f1 0%, #ffffff 100%);
}

.home__content {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 34px;
  align-items: center;
}

.home__image {
  width: 100%;
  border-radius: 34px;
  box-shadow: var(--shadow-strong);
}

.home__text {
  max-width: 620px;
}

/* DATA */
.data-section {
  padding: 100px 0;
  background: var(--bg-soft);
}

.data-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 38px;
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: var(--shadow);
}

.data-panel__text {
  max-width: 720px;
}

/* FINAL */
.final-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #1a1a1a 0%, #111111 100%);
  color: var(--text-light);
}

.final__content {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.final__eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.84rem;
  font-weight: 900;
  color: #f0c8c5;
}

.final__content p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 30px;
}

/* FOOTER */
.footer {
  padding: 26px 0;
  background: #0c0c0c;
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer a {
  color: #ffffff;
  font-weight: 700;
}

/* RESPONSIVE */
@media (max-width: 1100px) {
  .hero__content,
  .symptoms__content,
  .home__content {
    grid-template-columns: 1fr;
  }

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

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

  .data-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__visual {
    min-height: auto;
  }

}

@media (max-width: 860px) {
  .topbar__content {
    min-height: auto;
    padding: 16px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar__nav {
    width: 100%;
    justify-content: flex-start;
    gap: 12px 16px;
  }

  .hero {
    padding: 60px 0 80px;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 8vw, 4rem);
  }

  .cycle {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    min-height: auto;
    max-width: 620px;
  }

  .cycle::before,
  .cycle__center {
    display: none;
  }

  .cycle__item {
    position: static;
    width: 100%;
    transform: none !important;
    padding: 24px;
    border-radius: 24px;
    background: #f8f6f4;
    box-shadow: var(--shadow);
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  .hero__actions,
  .footer__content {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

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

  .symptoms-box,
  .symptoms-alert,
  .prevention-card,
  .data-panel,
  .disease-card {
    padding: 22px;
  }

  .footer__content {
    text-align: center;
  }

  .topbar__nav .topbar__cta {
    width: 100%;
    text-align: center;
  }
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  border: none;
  background: transparent;
}

.menu-toggle span {
  width: 26px;
  height: 2px;
  background: var(--text-main);
  transition: var(--transition);
}

/* MENU MOBILE */

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 260px;
  height: 100vh;
  background: #ffffff;
  box-shadow: -10px 0 30px rgba(0,0,0,0.15);
  padding: 90px 30px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  transition: 0.35s;
  z-index: 999;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu__link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
}

.mobile-menu__back {
  color: var(--primary);
  font-weight: 700;
}

@media (max-width: 860px) {

  .topbar__nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

}

@media (max-width: 860px) {
  .hero__content {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    min-height: auto;
    margin-top: 20px;
    justify-content: flex-start;
  }

  .mosquito--png {
    max-width: 220px;
  }

}
@media (max-width: 860px) {

  .hero__visual {
    justify-content: center;
    margin-top: 20px;
  }

  .hero__mosquito {
    max-width: 260px;
    width: 100%;
    margin: 0 auto;
  }

}

@media (max-width: 860px) {

  .hero__visual {
    position: relative;
    justify-content: center;
    margin-top: 40px;
  }

  .hero__mosquito {
    max-width: 300px;
    width: 100%;
  }

  .hero__card {
    position: absolute;
    left: 10px;
    bottom: 4px;
    max-width: 180px;
    padding: 15px;
  }

  .hero__card h3 {
    font-size: 0.95rem;
  }

  .hero__card p {
    font-size: 0.8rem;
  }

}