/* =========================================================
   header — floating pill, cream/glass on pastel background
   ========================================================= */

.header {
    position: fixed;
    top: 14px;
    left: 50%;
    transform: translateX(-50%) translateZ(0);
    -webkit-transform: translateX(-50%) translateZ(0);
    width: max-content;
    max-width: 96vw;
    padding: 0.625rem 1.25rem;
    background-color: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-full);
    box-shadow:
        var(--shadow-lg),
        var(--inset-highlight);
    z-index: 50;
    pointer-events: auto;
    transition:
        transform var(--transition-normal) var(--spring),
        box-shadow var(--transition-normal) var(--smooth);
}

.header:hover {
    box-shadow:
        var(--shadow-xl),
        var(--inset-highlight);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.header h1 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0;
}

.title-sus {
    background: linear-gradient(135deg, var(--peach-500) 0%, var(--pink-500) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    /* tiny bounce loop so the wordmark feels alive */
    animation: title-bob 4s var(--smooth) infinite;
    display: inline-block;
    transform-origin: center bottom;
}

@keyframes title-bob {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50%      { transform: translateY(-2px) rotate(2deg); }
}

.beta-badge {
    font-family: var(--font-display);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-on-primary);
    background: linear-gradient(135deg, var(--mint-500), var(--mint-600));
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-sm), var(--inset-highlight);
}

/* ----- connection / online users ----- */

.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    position: relative;
    font-weight: 700;
}

.users-count-btn {
    background: none;
    border: none;
    padding: 0.25rem 0.625rem;
    margin: 0;
    font: inherit;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition:
        background-color var(--transition-fast) var(--smooth),
        transform var(--transition-fast) var(--spring),
        color var(--transition-fast) var(--smooth);
}

.users-count-btn:hover {
    background-color: var(--mint-100);
    color: var(--mint-600);
    transform: scale(1.04);
}

.users-popover {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    min-width: 200px;
    max-width: 280px;
    max-height: 60vh;
    overflow-y: auto;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.625rem 0;
    z-index: 9999;
    /* gentle spring-in */
    animation: pop-in 0.28s var(--spring);
    transform-origin: top right;
}

@keyframes pop-in {
    0%   { opacity: 0; transform: scale(0.85) translateY(-6px); }
    100% { opacity: 1; transform: scale(1)    translateY(0);    }
}

.users-popover.open {
    display: block;
}

.users-popover-title {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    padding: 0 0.875rem 0.5rem;
    border-bottom: 1.5px dashed var(--border-light);
    margin-bottom: 0.375rem;
}

.users-popover-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.users-popover-item {
    padding: 0.5rem 0.875rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background-color var(--transition-fast) var(--smooth);
}

.users-popover-item:hover {
    background-color: var(--cream-100);
    color: var(--text-primary);
}

.users-popover-item.is-me {
    color: var(--peach-600);
}

.me-tag {
    color: var(--mint-600);
    font-weight: 700;
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

.users-popover-empty {
    padding: 0.625rem 0.875rem;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-style: italic;
}

@media (max-width: 600px) {
    .users-popover {
        position: fixed;
        top: auto !important;
        bottom: 0;
        left: 0 !important;
        right: 0;
        max-width: none;
        max-height: 50vh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        padding: 0.875rem 0 calc(0.875rem + env(safe-area-inset-bottom, 0));
        box-shadow: 0 -8px 28px rgba(108, 124, 208, 0.18);
        animation: slide-up 0.32s var(--spring);
    }
    @keyframes slide-up {
        from { transform: translateY(100%); }
        to   { transform: translateY(0); }
    }
    .users-popover-title {
        padding: 0 1.125rem 0.5rem;
        font-size: 0.85rem;
    }
    .users-popover-item {
        padding: 0.75rem 1.125rem;
        font-size: 0.95rem;
    }
}

/* ----- live dot ----- */

.status-indicator {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: var(--radius-full);
    background-color: var(--slate-300);
    flex-shrink: 0;
    transition: background-color var(--transition-normal) var(--smooth);
}

.status-indicator.connected {
    background-color: var(--mint-500);
    box-shadow: 0 0 0 4px rgba(78, 205, 196, 0.25);
    animation: live-pulse 2.4s ease-in-out infinite;
}

@keyframes live-pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(78, 205, 196, 0.25); }
    50%      { box-shadow: 0 0 0 7px rgba(78, 205, 196, 0.10); }
}

.status-indicator.disconnected {
    background-color: var(--peach-500);
    box-shadow: 0 0 0 4px rgba(255, 124, 102, 0.25);
}

/* ----- zoom / coordinates pills ----- */

.stats {
    display: flex;
    gap: 0.5rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--cream-100);
    padding: 0.3rem 0.625rem;
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast) var(--smooth);
}

.stat-item:hover {
    background: var(--lavender-100);
}

.stat-item i {
    font-size: 0.7rem;
    color: var(--lavender-500);
}

/* ----- header icon buttons (download, leaderboard, login) ----- */

.header-icon-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-light);
    color: var(--text-primary);
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition:
        transform var(--transition-fast) var(--spring),
        background-color var(--transition-normal) var(--smooth),
        box-shadow var(--transition-normal) var(--smooth),
        border-color var(--transition-normal) var(--smooth);
    box-shadow: var(--shadow-sm);
    will-change: transform;
}

.header-icon-btn:hover {
    transform: translateY(-2px) scale(1.04);
    background: var(--peach-100);
    border-color: var(--peach-300);
    color: var(--peach-700);
    box-shadow: var(--shadow-md);
}

.header-icon-btn:active {
    transform: translateY(0) scale(0.97);
}

.header-icon-btn i {
    font-size: 0.85rem;
}

/* ----- profile chip in header ----- */

.user-profile {
    display: flex;
    align-items: center;
}

.profile-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.85rem 0.3rem 0.35rem;
    background: linear-gradient(135deg, var(--lavender-100), var(--pink-100));
    border: 1.5px solid var(--lavender-200);
    border-radius: var(--radius-full);
    transition:
        transform var(--transition-fast) var(--spring),
        box-shadow var(--transition-normal) var(--smooth);
    cursor: pointer;
}

.profile-info:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: var(--shadow-md);
}

.profile-info.clickable {
    cursor: pointer;
}

.user-name-label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ----- mode toggle ----- */

.mode-toggle-container {
    position: relative;
}

.mode-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.95rem;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition:
        transform var(--transition-fast) var(--spring),
        box-shadow var(--transition-normal) var(--smooth),
        background var(--transition-normal) var(--smooth);
    box-shadow: var(--shadow-md), var(--inset-highlight);
    color: var(--text-on-primary);
    background: linear-gradient(180deg, var(--mint-400), var(--mint-500));
}

.mode-toggle-btn:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: var(--shadow-lg), var(--inset-highlight), var(--glow-mint);
}

.mode-toggle-btn:active {
    transform: translateY(0) scale(0.97);
}

.mode-toggle-btn.edit-mode {
    background: linear-gradient(180deg, var(--peach-400), var(--peach-500));
}

.mode-toggle-btn.edit-mode:hover {
    box-shadow: var(--shadow-lg), var(--inset-highlight), var(--glow-peach);
}

.edit-locked-message {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--peach-700);
    background: var(--peach-100);
    border: 1.5px dashed var(--peach-300);
    padding: 0.3rem 0.625rem;
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition:
        opacity var(--transition-normal) var(--smooth),
        transform var(--transition-normal) var(--spring);
}

.edit-locked-message.visible {
    opacity: 1;
    transform: translateY(0);
}