:root {
    --bg: #f4fbfb;
    --card: #ffffff;
    --primary: #0a6670;
    --primary-soft: #3bb9ab;
    --text: #1f2d34;
    --muted: #60757d;
    --border: rgba(10, 102, 112, 0.12);
    --shadow: 0 20px 45px rgba(14, 57, 63, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: "Inter", sans-serif;
    background: radial-gradient(circle at top, #ffffff 0%, var(--bg) 42%, #eaf5f6 100%);
    color: var(--text);
    line-height: 1.6;
}

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

button, a { font: inherit; }

a {
    color: var(--primary);
    text-decoration: none;
}

.page {
    max-width: 1320px;
    margin: 0 auto;
    padding: 24px 20px 48px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 26px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand__logo {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, #0d6f7f 0%, #20b2c2 100%);
    box-shadow: 0 12px 24px rgba(10, 102, 112, 0.15);
}

.brand__logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand__title {
    display: flex;
    flex-direction: column;
}

.brand__title span:first-child {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.brand__title span:last-child {
    color: var(--primary);
    font-size: 0.92rem;
    font-weight: 600;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.nav-link {
    padding: 12px 16px;
    border-radius: 999px;
    background-color: rgba(11, 109, 117, 0.08);
    color: var(--primary);
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
    background-color: rgba(17, 134, 124, 0.12);
    border-color: rgba(10, 102, 112, 0.2);
    transform: translateY(-1px);
    outline: none;
}

.layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}

.panel {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: var(--shadow);
    padding: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}

.section-title {
    margin: 0;
    font-size: clamp(1.35rem, 2vw, 1.9rem);
    font-weight: 800;
}

.section-subtitle {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 0.96rem;
}

.card-title {
    margin: 0 0 12px;
    font-size: 1.15rem;
    font-weight: 700;
}

.calendar-wrap {
    width: 100%;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.calendar-month {
    margin: 0;
    color: var(--muted);
    font-weight: 600;
}

.calendar {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.calendar th,
.calendar td {
    border: 1px solid var(--border);
    padding: 10px 8px;
    text-align: center;
    font-size: 0.92rem;
}

.calendar th {
    background: rgba(11, 109, 117, 0.08);
    color: var(--primary);
    font-weight: 700;
}

.calendar td.day {
    background: #fff;
    color: var(--text);
    min-width: 72px;
    vertical-align: top;
}

.calendar td.day span {
    display: inline-flex;
    width: 100%;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    padding: 6px 8px;
    line-height: 1.3;
    font-weight: 600;
}

.calendar td.day[data-day-type="pink"] {
    background: rgba(247, 3, 137, 0.08);
}

.calendar td.day[data-day-type="green"] {
    background: rgba(45, 210, 40, 0.08);
}

.calendar td.day[data-day-type="pink"] span {
    background: rgba(247, 3, 137, 0.16);
    color: #8b065d;
}

.calendar td.day[data-day-type="green"] span {
    background: rgba(45, 210, 40, 0.16);
    color: #1d7e2b;
}

.calendar td.day.today {
    box-shadow: inset 0 0 0 2px rgba(11, 109, 117, 0.7);
}

.calendar td.day.muted {
    color: #a8b0b3;
}

.news-grid { display: grid; gap: 18px; }

.news-card {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fcfd 100%);
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.news-card h3 {
    margin: 0 0 10px;
    font-size: 1.3rem;
}

.news-card p {
    margin: 0 0 14px;
    color: var(--muted);
}

.feature {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 16px;
    align-items: center;
    margin-top: 18px;
}

.feature img {
    width: 100%;
    border-radius: 18px;
    box-shadow: 0 12px 24px rgba(11, 109, 117, 0.08);
}

.feature strong {
    display: block;
    margin-bottom: 6px;
}

.feature span {
    color: var(--muted);
    font-size: 0.9rem;
}

.about-panel p {
    margin: 0;
    color: var(--text);
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 18px 0 0;
    display: grid;
    gap: 12px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: #f8fcfd;
    border: 1px solid rgba(11, 109, 117, 0.1);
}

.about-list li img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: 10px;
}

.sidebar {
    display: grid;
    gap: 18px;
}

.events-history {
    display: grid;
    gap: 14px;
}

.past-event-list {
    display: grid;
    gap: 10px;
}

.past-event {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    padding: 10px;
    border: 1px solid rgba(11, 109, 117, 0.12);
    border-radius: 16px;
    background: linear-gradient(180deg, #ffffff 0%, #f5fbfb 100%);
    color: var(--text);
    text-align: left;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    box-shadow: 0 8px 18px rgba(11, 109, 117, 0.04);
}

.past-event:hover,
.past-event:focus-visible {
    border-color: rgba(10, 102, 112, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(11, 109, 117, 0.08);
    outline: none;
}

.past-event__thumb {
    overflow: hidden;
    border: 1px solid rgba(11, 109, 117, 0.1);
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(11, 109, 117, 0.06), rgba(59, 185, 171, 0.08));
}

.past-event__thumb img {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.past-event__content {
    display: grid;
    gap: 3px;
    padding: 0 2px 2px;
}

.past-event__date {
    color: var(--primary);
    font-size: 0.76rem;
    font-weight: 700;
}

.past-event__title {
    font-size: 0.94rem;
    font-weight: 700;
    line-height: 1.35;
}

.past-event__action {
    color: var(--muted);
    font-size: 0.77rem;
}

@media (max-width: 980px) {
    .past-event__thumb img {
        height: 110px;
    }
}

.social-card {
    padding: 20px;
    display: grid;
    gap: 14px;
}

.social-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.social-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid rgba(11, 109, 117, 0.12);
    background-color: #f8fcfd;
    font-weight: 600;
}

.social-list i {
    color: var(--primary);
    font-size: 1.1rem;
}

.poster-dialog {
    width: min(720px, calc(100% - 32px));
    max-height: calc(100% - 32px);
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 24px 70px rgba(10, 40, 50, 0.25);
}

.poster-dialog::backdrop {
    background: rgba(12, 28, 34, 0.68);
}

.poster-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.poster-dialog__header h2 {
    margin: 0;
    font-size: 1.2rem;
}

.poster-dialog__close {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: #eef5f5;
    color: var(--text);
    font-size: 1.6rem;
    cursor: pointer;
}

.poster-gallery {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
}

.poster-gallery__content { min-width: 0; }

.poster-gallery__nav {
    display: inline-grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 50%;
    background: #eef5f5;
    color: var(--primary);
    font-size: 1.8rem;
    cursor: pointer;
}

.poster-gallery__nav[hidden] { display: none; }
.poster-gallery__nav:disabled {
    opacity: 0.4;
    cursor: default;
}

.poster-dialog__message {
    margin: 0 0 8px;
    color: var(--muted);
}

.poster-dialog__image {
    display: none;
    max-width: 100%;
    max-height: calc(100vh - 180px);
    margin: 0 auto;
    object-fit: contain;
    border-radius: 14px;
}

.poster-dialog__image.is-visible { display: block; }

.poster-gallery__counter {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
}

@media (max-width: 980px) {
    .layout { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .page { padding: 16px 14px 32px; }
    .panel { padding: 18px; border-radius: 20px; }
    .feature { grid-template-columns: 1fr; }
    .nav-links { width: 100%; }
    .nav-link { flex: 1 1 100%; text-align: center; }
}