:root {
    --panel-bg: rgba(17, 24, 39, 0.88);
    --panel-border: rgba(255,255,255,0.08);

    --text-main: #f5f5f4;
    --text-soft: #d6d3d1;

    --accent: #facc15;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    overflow: hidden;

    font-family: Inter, system-ui, sans-serif;

    background: #0f172a;
    color: var(--text-main);
}

#map {
    position: absolute;
    inset: 0;
}

/* HERO PANEL */

#hero {
    position: absolute;

    top: 24px;
    left: 24px;

    width: min(420px, calc(100vw - 32px));

    background: var(--panel-bg);

    backdrop-filter: blur(12px);

    border: 1px solid var(--panel-border);
    border-radius: 20px;

    padding: 22px;

    z-index: 3;

    box-shadow: 0 10px 40px rgba(0,0,0,0.35);

    animation: fadeIn 0.8s ease;

    transition:
        transform 0.3s ease,
        opacity 0.3s ease,
        width 0.3s ease,
        padding 0.3s ease;
}

#hero.collapsed {

    width: auto;

    padding:
        10px 48px
        10px 16px;

    border-radius: 16px;
}

#hero.collapsed h1 {

    margin: 0;

    font-size: 20px;

    white-space: nowrap;
}

#hero.collapsed #subtitle,
#hero.collapsed #instruction,
#hero.collapsed #buttons {
    display: none;
}

#heroToggle {

    position: absolute;

    top: 10px;
    right: 10px;

    width: 28px;
    height: 28px;

    border: none;
    border-radius: 10px;

    background: rgba(255,255,255,0.08);

    color: white;

    font-size: 18px;
    font-weight: 600;

    cursor: pointer;

    transition:
        background 0.2s ease,
        transform 0.2s ease;
}

#heroToggle:hover {

    background: rgba(255,255,255,0.16);

    transform: scale(1.05);
}

@keyframes fadeIn {

    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1 {
    margin: 0;

    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.05;

    font-weight: 700;
}

#subtitle {
    margin-top: 14px;

    color: var(--text-soft);

    line-height: 1.6;
    font-size: 16px;
}

#instruction {
    margin-top: 18px;

    padding: 12px 14px;

    border-radius: 12px;

    background: rgba(250, 204, 21, 0.12);

    color: #fde68a;

    font-size: 15px;
    line-height: 1.5;
}

.dot {
    display: inline-block;

    width: 10px;
    height: 10px;

    border-radius: 50%;

    background: var(--accent);

    margin-right: 8px;

    box-shadow: 0 0 12px rgba(250, 204, 21, 0.7);

    animation: pulse 2s infinite;
}

@keyframes pulse {

    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.25);
        opacity: 0.7;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* BUTTONS */

#buttons {
    display: flex;

    gap: 10px;
    flex-wrap: wrap;

    margin-top: 20px;
}

.btn,
.langBtn {

    border: none;
    border-radius: 12px;

    padding: 10px 14px;

    background: rgba(255,255,255,0.08);

    color: white;

    cursor: pointer;

    font-size: 14px;

    transition:
        background 0.2s ease,
        transform 0.2s ease;
}

.btn:hover,
.langBtn:hover {

    background: rgba(255,255,255,0.16);

    transform: translateY(-1px);
}

.langBtn.active {

    background: rgba(250, 204, 21, 0.16);

    color: #fde68a;
}

/* LANGUAGE SWITCHER */

#langSwitcher {

    position: absolute;

    top: 24px;
    right: 24px;

    z-index: 3;

    display: flex;
    gap: 10px;

    overflow-x: auto;
    flex-wrap: nowrap;

    max-width: calc(100vw - 48px);

    scrollbar-width: none;
}

#langSwitcher::-webkit-scrollbar {
    display: none;
}

/* VIEWER */

#viewer {

    position: fixed;
    inset: 0;

    background: rgba(0,0,0,0.92);

    display: flex;
    justify-content: center;
    align-items: center;

    z-index: 10;

    padding: 20px;
}

.hidden {
    display: none !important;
}

#photoCard {

    width: min(920px, 100%);

    background: #111827;

    border-radius: 24px;

    overflow: hidden;

    box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

#viewerImg {

    width: 100%;

    max-height: 72vh;

    object-fit: contain;

    background: black;
}

#photoInfo {
    padding: 20px;
}

#photoCountry {

    font-size: 28px;
    font-weight: 600;
}

#photoUser {

    margin-top: 8px;

    color: #cbd5e1;

    font-size: 15px;
}

#photoStory {

    margin-top: 14px;

    line-height: 1.7;
    font-size: 16px;

    color: #e5e7eb;
}

#closeBtn {

    position: absolute;

    top: 18px;
    right: 20px;

    width: 44px;
    height: 44px;

    border-radius: 50%;
    border: none;

    background: rgba(255,255,255,0.1);

    color: white;

    font-size: 24px;

    cursor: pointer;
}

/* OVERLAYS */

.overlay {

    position: fixed;
    inset: 0;

    background: rgba(0,0,0,0.84);

    z-index: 9;

    display: flex;
    justify-content: center;
    align-items: center;

    padding: 20px;
}

.overlayCard {

    width: min(760px, 100%);

    max-height: 85vh;

    overflow-y: auto;

    background: #111827;

    border-radius: 24px;

    padding: 28px;

    line-height: 1.8;

    color: #e5e7eb;

    box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

.overlayCard h2 {

    margin-top: 0;

    color: white;

    font-size: 32px;
}

.overlayCard ul {
    padding-left: 22px;
}

.overlayCard li {
    margin-bottom: 12px;
}

/* MOBILE */

@media (max-width: 768px) {

    #hero {

        top: 56px;
        left: 12px;
        right: 12px;

        width: auto;

        padding: 18px;
    }

    #hero.collapsed {

        left: 12px;
        right: auto;

        width: auto;
    }

    #langSwitcher {

        top: auto;
        bottom: 12px;
        left: 12px;
        right: 12px;

        justify-content: flex-start;
    }

    h1 {
        font-size: 30px;
    }

    #subtitle {
        font-size: 15px;
    }

    #instruction {
        font-size: 14px;
    }

    #photoCountry {
        font-size: 22px;
    }

    #photoStory {
        font-size: 15px;
    }

    .overlayCard {
        padding: 22px;
    }
}