:root {
    --green-950: #0d1f0f;
    --green-900: #133016;
    --green-800: #1c4a20;
    --green-700: #26652c;
    --green-600: #337a39;
    --green-400: #5cb866;
    --green-200: #a8d9ad;
    --green-100: #d4ecd6;
    --green-50:  #eef7ef;
    --cream-100: #faf7f2;
    --cream-200: #f2ede3;
    --cream-300: #e5ddd0;
    --text-dark: #111c12;
    --text-mid:  #3a4f3c;
    --text-muted:#7a8f7c;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
  }

  /* ===== HERO ===== */
  .eco-hero {
    background: var(--green-900);
    background-image:
      radial-gradient(ellipse 60% 80% at 80% 50%, rgba(92,184,102,0.18) 0%, transparent 70%),
      url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 C20 5 10 15 10 30 C10 45 20 55 30 55 C28 40 25 25 30 5Z' fill='%23337a39' opacity='0.08'/%3E%3Cpath d='M30 5 C40 5 50 15 50 30 C50 45 40 55 30 55 C32 40 35 25 30 5Z' fill='%23337a39' opacity='0.08'/%3E%3C/svg%3E");
    padding: 72px 0 56px;
    position: relative;
    overflow: hidden;
  }
  .eco-hero::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(13,31,15,0.7) 0%, transparent 100%);
  }
  .eco-hero-inner {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
    text-align: center;
  }
  .eco-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(92,184,102,0.2);
    border: 1px solid rgba(92,184,102,0.35);
    border-radius: 100px;
    padding: 6px 18px;
    font-size: 12px;
    font-weight: 500;
    color: var(--green-200);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 20px;
  }
  .eco-hero-tag::before {
    content: '';
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--green-400);
    display: inline-block;
  }
  .eco-hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
  }
  .eco-breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.55);
    list-style: none;
    padding: 0; margin: 0;
  }
  .eco-breadcrumb a {
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    transition: color 0.2s;
  }
  .eco-breadcrumb a:hover { color: var(--green-200); }
  .eco-breadcrumb .sep { color: rgba(255,255,255,0.3); }
  .eco-breadcrumb .current { color: var(--green-200); font-weight: 500; }

  /* ===== MAIN ===== */
  .eco-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 48px 32px 80px;
  }

  /* ===== TABS ===== */
  .eco-tab-nav {
    display: flex;
    gap: 6px;
    background: var(--cream-200);
    border-radius: var(--radius-xl);
    padding: 6px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    list-style: none;
  }
  .eco-tab-btn {
    flex: 1;
    min-width: 140px;
    padding: 12px 20px;
    border: none;
    border-radius: calc(var(--radius-xl) - 4px);
    background: transparent;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }
  .eco-tab-btn .tab-icon { font-size: 16px; }
  .eco-tab-btn:hover {
    color: var(--green-700);
    background: rgba(92,184,102,0.1);
  }
  .eco-tab-btn.active {
    background: var(--green-800);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(28,74,32,0.35);
  }
  .eco-tab-pane { display: none; }
  .eco-tab-pane.active { display: block; }

  /* ===== STUDENTS GRID ===== */
  .eco-students-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
  }
  .eco-student-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--cream-300);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .eco-student-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(28,74,32,0.12);
  }
  .eco-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
  }
  .eco-card-img-placeholder {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, var(--green-100) 0%, var(--cream-200) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .eco-img-avatar {
    width: 80px; height: 80px;
    border-radius: 50%;
    background: var(--green-200);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    color: var(--green-800);
    font-weight: 700;
  }
  .eco-card-body {
    padding: 22px 24px 24px;
  }
  .eco-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
  }
  .eco-card-body .theme-text {
    font-size: 13.5px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .eco-card-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--green-50);
    border: 1.5px solid var(--green-200);
    color: var(--green-700);
    font-size: 13px;
    font-weight: 500;
    padding: 9px 18px;
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.22s ease;
  }
  .eco-card-link:hover {
    background: var(--green-800);
    border-color: var(--green-800);
    color: #fff;
  }
  .eco-card-link svg {
    width: 14px; height: 14px;
    transition: transform 0.2s;
  }
  .eco-card-link:hover svg { transform: translateX(3px); }

  /* ===== SECTION HEADER ===== */
  .eco-section-header {
    text-align: center;
    margin-bottom: 36px;
  }
  .eco-section-label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green-600);
    margin-bottom: 10px;
  }
  .eco-section-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    color: var(--text-dark);
    font-weight: 700;
  }
  .eco-section-title span { color: var(--green-700); }

  /* ===== EVENTS GRID ===== */
  .eco-events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
  }
  .eco-event-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: var(--green-900);
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: transform 0.3s ease;
  }
  .eco-event-card:hover { transform: scale(1.02); }
  .eco-event-card-bg {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    position: relative;
    overflow: hidden;
  }
  .eco-event-card-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
  }
  .eco-event-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13,31,15,0.88) 0%, rgba(13,31,15,0.1) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
  }
  .eco-event-label {
    display: inline-block;
    background: rgba(92,184,102,0.25);
    border: 1px solid rgba(92,184,102,0.4);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 500;
    color: var(--green-200);
    padding: 4px 12px;
    margin-bottom: 8px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    width: fit-content;
  }
  .eco-event-card h3 {
    font-size: 15px;
    color: #fff;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 10px;
  }
  .eco-event-card-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--green-200);
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: gap 0.2s;
  }
  .eco-event-card-link:hover { gap: 9px; }

  /* ===== VIDEO CARDS ===== */
  .eco-video-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: var(--green-950);
    aspect-ratio: 16/9;
    cursor: pointer;
    transition: transform 0.3s ease;
  }
  .eco-video-card:hover { transform: scale(1.02); }
  .eco-video-bg {
    width: 100%; height: 100%;
    position: relative;
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--green-950) 0%, var(--green-800) 100%);
  }
  .eco-video-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    position: absolute; inset: 0;
  }
  .eco-play-btn {
    position: relative; z-index: 2;
    width: 54px; height: 54px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: 2px solid rgba(255,255,255,0.4);
    display: flex; align-items: center; justify-content: center;
    transition: all 0.25s;
  }
  .eco-video-card:hover .eco-play-btn {
    background: var(--green-600);
    border-color: var(--green-400);
    transform: scale(1.1);
  }
  .eco-play-btn svg {
    width: 20px; height: 20px;
    fill: #fff;
    margin-left: 3px;
  }
  .eco-video-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(to top, rgba(13,31,15,0.9) 0%, transparent 100%);
    padding: 16px 18px;
  }
  .eco-video-overlay span {
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    font-weight: 400;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  /* ===== PHOTO GRID ===== */
  .eco-photo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 180px);
    gap: 12px;
  }
  .eco-photo-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.25s ease;
    position: relative;
  }
  .eco-photo-item:first-child {
    grid-row: 1 / 3;
    border-radius: var(--radius-lg);
  }
  .eco-photo-item:hover { transform: scale(1.02); }
  .eco-photo-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
  }
  .eco-photo-item-placeholder {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, var(--green-200) 0%, var(--green-400) 100%);
    display: flex; align-items: center; justify-content: center;
    color: var(--green-800);
    font-size: 28px;
  }
  .eco-photo-overlay {
    position: absolute; inset: 0;
    background: rgba(13,31,15,0);
    transition: background 0.25s;
    display: flex; align-items: center; justify-content: center;
  }
  .eco-photo-item:hover .eco-photo-overlay {
    background: rgba(13,31,15,0.4);
  }
  .eco-zoom-icon {
    opacity: 0;
    transition: opacity 0.25s;
    color: #fff;
    font-size: 28px;
  }
  .eco-photo-item:hover .eco-zoom-icon { opacity: 1; }

  /* ===== LEAF DIVIDER ===== */
  .eco-leaf-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
  }
  .eco-leaf-divider::before,
  .eco-leaf-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--cream-300);
  }
  .eco-leaf-divider span { font-size: 18px; opacity: 0.5; }

  /* ===== EMPTY STATE ===== */
  .eco-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
  }
  .eco-empty .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }