body {
    margin: 0;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: #18212b;
    background: #f4f7fb;
    line-height: 1.6;
}

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

.container {
    width: min(1150px, 92%);
    margin: 0 auto;
}

.site-header {
    background: linear-gradient(135deg, #0d1b2a, #1b263b);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.header-container {
    min-height: 88px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.logo img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.logo-text {
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.top-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
}

.top-buttons a {
    color: #dbe4f0;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 999px;
    transition: all 0.25s ease;
}

.top-buttons a:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.08);
}

.top-buttons a.active-top-button {
    color: #ffffff;
    background-color: #2f80ed;
    box-shadow: 0 8px 24px rgba(47, 128, 237, 0.28);
}

.hero-section {
    padding: 72px 0 56px;
    background:
        radial-gradient(circle at top left, rgba(47, 128, 237, 0.12), transparent 30%),
        linear-gradient(180deg, #f8fbff 0%, #eef3f9 100%);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 56px;
}

.first-info {
    flex: 1;
    max-width: 620px;
}

.section-label {
    display: inline-block;
    margin-bottom: 16px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(47, 128, 237, 0.1);
    color: #1d5fbf;
    font-size: 0.92rem;
    font-weight: 600;
}

.first-info h1 {
    margin: 0 0 18px;
    font-size: clamp(2.2rem, 4vw, 3.6rem);
    line-height: 1.1;
    color: #0f172a;
}

.first-info p {
    margin: 0 0 18px;
    font-size: 1.06rem;
    color: #334155;
}

.hero-actions {
    display: flex;
    gap: 14px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.primary-btn,
.secondary-btn,
.activity-link {
    display: inline-block;
    text-decoration: none;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.25s ease;
}

.primary-btn {
    background: #2f80ed;
    color: #ffffff;
    padding: 14px 22px;
    box-shadow: 0 12px 28px rgba(47, 128, 237, 0.25);
}

.primary-btn:hover {
    transform: translateY(-2px);
    background: #256fd1;
}

.secondary-btn {
    border: 1px solid #cbd5e1;
    color: #0f172a;
    background: #ffffff;
    padding: 14px 22px;
}

.secondary-btn:hover {
    transform: translateY(-2px);
    border-color: #94a3b8;
    background: #f8fafc;
}

.first-info-img {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.first-info-img img {
    width: 100%;
    max-width: 470px;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
    border: 1px solid #dbe3ec;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.first-info-img img:hover {
    transform: scale(1.02);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
}

.section-title {
    padding-top: 24px;
}

.section-title h2 {
    margin: 0;
    padding: 18px 24px;
    border-radius: 18px;
    background: linear-gradient(135deg, #10243d, #17375e);
    color: #ffffff;
    text-align: center;
    font-size: 2rem;
    letter-spacing: 0.5px;
}

.activity-section {
    padding: 48px 0 80px;
}

.activityhub {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
}

.activityhub-text {
    flex: 1.3;
    background: #ffffff;
    border-radius: 22px;
    padding: 34px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
}

.activityhub-text p {
    margin: 0 0 18px;
    font-size: 1.05rem;
    color: #334155;
}

.activity-link {
    margin-top: 8px;
    padding: 14px 20px;
    background: #0f172a;
    color: #ffffff;
}

.activity-link:hover {
    background: #1e293b;
    transform: translateY(-2px);
}

.activityhub-data-card {
    flex: 0.8;
    background: linear-gradient(180deg, #17375e, #10243d);
    color: #ffffff;
    border-radius: 22px;
    padding: 28px;
    box-shadow: 0 18px 40px rgba(16, 36, 61, 0.2);
    min-width: 280px;
}

.data-item + .data-item {
    margin-top: 26px;
    padding-top: 26px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.data-item h3 {
    margin: 0 0 8px;
    font-size: 1.4rem;
    font-weight: 700;
}

.data-item p {
    margin: 0;
    font-size: 1rem;
    color: #dbe4f0;
}

@media (max-width: 900px) {
    .header-container,
    .hero-content,
    .activityhub {
        flex-direction: column;
        align-items: flex-start;
    }

    .top-buttons {
        flex-wrap: wrap;
    }

    .first-info-img,
    .first-info,
    .activityhub-text,
    .activityhub-data-card {
        width: 100%;
        max-width: 100%;
    }

    .first-info-img {
        justify-content: center;
    }

    .activityhub-data-card {
        min-width: auto;
    }
}

@media (max-width: 600px) {
    .header-container {
        min-height: auto;
        padding: 16px 0;
    }

    .logo-text {
        font-size: 1.05rem;
    }

    .top-buttons a {
        font-size: 0.95rem;
        padding: 9px 14px;
    }

    .first-info h1 {
        font-size: 2rem;
    }

    .hero-section {
        padding: 48px 0 36px;
    }

    .activityhub-text,
    .activityhub-data-card {
        padding: 24px;
    }
}

.TimeLine {
    margin-top: 100px;
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.BackroundTL {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center 15%;
    background-color: transparent;
    opacity: 1;
    transition: opacity 0.8s ease-in-out;
    will-change: opacity;
    pointer-events: none;
    pointer-events: none;
    will-change: opacity;
    transition: opacity 0.6s ease;
}

.BackroundTL--top {
    opacity: 0;
}

.TimeLine-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        to bottom,
        rgba(8, 16, 34, 0.25),
        rgba(8, 16, 34, 0.35)
    );
    pointer-events: none;
}

.TimeLine-content {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 60px 0 30px;
}

.TextTL {
    max-width: 700px;
    padding: 0 40px;
}

.TextTL h2 {
    margin: 0 0 14px;
    font-size: 42px;
    line-height: 1.1;
    font-weight: 700;
}

.TextTL p {
    margin: 0;
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
    max-width: 640px;
}

.TimelineTL {
    width: 100%;
    margin-top: 40px;
}

.TLviewport {
    overflow: visible;
    padding: 0 40px;
    padding-left: 90px;
    padding-right: 40px;
}

.TLtrack {
    display: flex;
    align-items: flex-end;
    gap: 22px;
    width: max-content;
    max-width: calc(100vw - 80px);

    overflow-x: auto;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;

    padding-top: 110px;
    padding-bottom: 10px;
}

.TLtrack::-webkit-scrollbar {
    height: 0;
}

.TLyear {
    position: relative;
    width: 28px;
    height: 120px;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    flex-shrink: 0;
}

.TLline {
    width: 3px;
    height: 72px;
    background: rgba(255, 255, 255, 0.78);
    border-radius: 999px;
    margin-top: auto;
}

.TLlabel {
    margin-top: 10px;
    font-size: 13px;
    line-height: 1;
    color: rgba(255, 255, 255, 0.92);
    white-space: nowrap;
}

.TLdot {
    position: absolute;
    top: 0;
    left: 50%;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #ffffff;
    transform: translateX(-50%);
    transform-origin: center;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
}

.TLdot:hover {
    transform: translateX(-50%) scale(1.28);
}

.TLdot.is-active {
    transform: translateX(-50%) scale(1.34);
    box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.18);
}

.GlobalTooltip {
    position: fixed;
    z-index: 9999;
    pointer-events: none;

    display: none;
    min-width: 220px;
    max-width: 320px;

    padding: 12px 14px;
    border-radius: 14px;

    background: rgba(8, 10, 20, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(8px);

    color: #ffffff;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}

.GlobalTooltip .event-year {
    font-size: 12px;
    opacity: 0.82;
    margin-bottom: 4px;
}

.GlobalTooltip .event-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.3;
}

.GlobalTooltip .event-text {
    font-size: 13px;
    line-height: 1.45;
    opacity: 0.92;
}

@media (max-width: 900px) {
    .TimeLine-content {
        padding-top: 40px;
        padding-bottom: 24px;
    }

    .TextTL {
        padding: 0 20px;
        max-width: 100%;
    }

    .TextTL h2 {
        font-size: 32px;
    }

    .TextTL p {
        font-size: 16px;
    }

    .TLviewport {
        padding: 0 20px;
    }

    .TLtrack {
        max-width: calc(100vw - 40px);
        gap: 18px;
        margin-left: 80px;
    }
}

@media (max-width: 600px) {
    .TimeLine {
        min-height: 90vh;
    }

    .TextTL h2 {
        font-size: 26px;
    }

    .TextTL p {
        font-size: 15px;
        line-height: 1.5;
    }

    .TLlabel {
        font-size: 12px;
    }

    .GlobalTooltip {
        min-width: 180px;
        max-width: 260px;
        padding: 10px 12px;
    }
}

.Graphs-dec {
    padding: 60px 40px;
    background: #0f1720;
    color: white;
    margin-bottom: 0;
}

.graphs-wrap {
    max-width: 1200px;
    margin: 0 auto;
}

.graphs-text {
    margin-bottom: 0px;
}

.graphs-text h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.graphs-text p {
    max-width: 800px;
    line-height: 1.6;
    color: #d0d7de;
}

.graph-card {
    background: #16202b;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.graph-card h3 {
    margin-bottom: 16px;
}

.chart-box {
    position: relative;
    width: 100%;
    height: 420px;
}

.chart-box canvas {
    width: 100% !important;
    height: 100% !important;
}

.graphC {
    margin-top: 0;
    margin-bottom: 0;
    background-color: #0f1720;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    padding: 30px 40px;
}

.graphC h1 {
    margin: 0 0 20px 0;
}

.graphC p {
    margin: 0;
    max-width: 1000px;
    line-height: 1.6;
}

.pollution-section {
    background-color: #0f1720;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    padding: 40px;
}

.pollution-text {
    margin: 0;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    flex: 1;
    min-width: 0;
}

.pollution-text h1 {
    margin: 0 0 20px 0;
}

.pollution-text p {
    margin: 0;
    max-width: 1000px;
    line-height: 1.6;
}

.pollution-images {
    position: relative;
    width: 400px;
    height: 300px;
}

.pollution-images img {
    position: absolute;
    width: 220px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
}

.img1 {
    top: 0;
    left: 80px;
    transform: rotate(-6deg);
    z-index: 3;
}

.img2 {
    bottom: 0;
    left: 0;
    transform: rotate(4deg);
    z-index: 2;
}

.img3 {
    bottom: 0;
    right: 0;
    transform: rotate(-3deg);
    z-index: 1;
}

.pollution-images img:hover {
    transform: scale(1.08) rotate(0deg);
    z-index: 10;
}

.footer-left {
    width: 600px;
}

.footer {
  background: #1c1c1c;
  color: #ddd;
  padding: 50px 20px 20px;
  font-family: Arial, sans-serif;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;

  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
}

.footer-description {
  line-height: 1.6;
  font-size: 15px;
}

.footer-center h3 {
  margin-bottom: 15px;
  font-size: 20px;
}

.footer-center ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-center li {
  margin-bottom: 8px;
  font-size: 15px;
}

.footer-right {
  text-align: right;
}

.made-by {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.made-by img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.made-by p {
  margin: 0;
  font-size: 16px;
}

.founded {
  margin-top: 10px;
  font-size: 12px;
  color: #aaa;
}

.footer-bottom {
  border-top: 1px solid #333;
  margin-top: 30px;
  padding-top: 15px;
  text-align: center;
  font-size: 14px;
  color: #aaa;
}

@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .made-by {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .pollution-section {
    flex-direction: column;
    align-items: stretch;
    gap: 24px;
    padding: 24px 16px;
  }

  .pollution-text {
    padding: 0;
    width: 100%;
  }

  .pollution-text h1 {
    font-size: 1.8rem;
    line-height: 1.2;
  }

  .pollution-text p {
    max-width: 100%;
    overflow-wrap: break-word;
    word-break: normal;
  }

  .pollution-images {
    width: 100%;
    max-width: 320px;
    height: 240px;
    margin: 0 auto;
  }

  .pollution-images img {
    width: 180px;
    max-width: 100%;
  }

  .img1 {
    left: 50%;
    transform: translateX(-50%) rotate(-6deg);
  }

  .img2 {
    left: 0;
    bottom: 0;
  }

  .img3 {
    right: 0;
    bottom: 0;
  }

  .footer {
    padding: 36px 16px 16px;
  }

  .footer-left {
    width: 100%;
  }

  .footer-description {
    overflow-wrap: break-word;
  }
}