/* ===========================
   COMMUNITY CHAT
=========================== */

:root {
    --chat-primary: #0b3d91;
    --chat-primary-dark: #082f70;
    --chat-accent: #1d74f5;
    --chat-surface: #ffffff;
    --chat-muted: #64748b;
    --chat-border: #e2e8f0;
    --chat-bg: #f8fafc;
    --chat-shadow: 0 24px 60px rgba(15, 23, 42, 0.14);
}

/* --- Floating Widget --- */

.chat-widget-root {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 1200;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.chat-widget-root--page {
    position: static;
    width: 100%;
    max-width: 920px;
    margin: 0 auto;
}

.chat-widget-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    min-height: 3.5rem;
    padding: 0 1.1rem 0 0.95rem;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--chat-accent), var(--chat-primary));
    color: #fff;
    box-shadow: 0 14px 30px rgba(29, 116, 245, 0.35);
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.chat-widget-toggle svg {
    width: 1.15rem;
    height: 1.15rem;
}

.chat-widget-toggle-label {
    font-weight: 700;
    font-size: 0.95rem;
}

.chat-widget-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 36px rgba(29, 116, 245, 0.42);
}

.chat-widget-panel,
.chat-page-panel {
    display: none;
    flex-direction: column;
    background: var(--chat-surface);
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 20px;
    box-shadow: var(--chat-shadow);
    overflow: hidden;
}

.chat-widget-panel {
    width: min(390px, calc(100vw - 2rem));
    height: min(560px, calc(100vh - 6rem));
    margin-bottom: 0.85rem;
}

.chat-widget-panel.is-open,
.chat-page-panel.is-open {
    display: flex;
}

/* --- Header --- */

.chat-widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 1.1rem;
    background: linear-gradient(135deg, var(--chat-primary-dark), var(--chat-accent));
    color: #fff;
}

.chat-widget-header-main {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.chat-widget-avatar {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.chat-widget-avatar svg {
    width: 1.35rem;
    height: 1.35rem;
}

.chat-widget-header h2 {
    margin: 0;
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.chat-widget-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.15rem;
    font-size: 0.78rem;
    opacity: 0.92;
}

.chat-status-dot {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 50%;
    background: #94a3b8;
    box-shadow: 0 0 0 3px rgba(148, 163, 184, 0.25);
}

.chat-widget-status.is-online .chat-status-dot {
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.25);
}

.chat-widget-status.is-connecting .chat-status-dot {
    background: #f59e0b;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.25);
}

.chat-widget-close {
    width: 2.2rem;
    height: 2.2rem;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    display: grid;
    place-items: center;
    cursor: pointer;
}

.chat-widget-close svg {
    width: 1rem;
    height: 1rem;
}

/* --- Messages --- */

.chat-widget-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background:
        radial-gradient(circle at top right, rgba(29, 116, 245, 0.05), transparent 38%),
        var(--chat-bg);
}

.chat-widget-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    min-height: 180px;
    padding: 1.5rem 1rem;
    text-align: center;
    color: var(--chat-muted);
}

.chat-widget-empty-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: #fff;
    border: 1px solid var(--chat-border);
    font-size: 1.25rem;
    margin-bottom: 0.35rem;
}

.chat-widget-empty strong {
    color: #334155;
}

.chat-message {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 0.9rem;
    max-width: 88%;
}

.chat-message.is-own {
    margin-left: auto;
    flex-direction: row-reverse;
}

.chat-message-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: var(--chat-primary);
    font-size: 0.72rem;
    font-weight: 700;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.chat-message.is-own .chat-message-avatar {
    background: linear-gradient(135deg, var(--chat-accent), var(--chat-primary));
    color: #fff;
}

.chat-message-body {
    min-width: 0;
}

.chat-message-meta {
    font-size: 0.72rem;
    color: var(--chat-muted);
    margin-bottom: 0.25rem;
}

.chat-message.is-own .chat-message-meta {
    text-align: right;
}

.chat-message-bubble {
    display: inline-block;
    padding: 0.65rem 0.85rem;
    border-radius: 16px;
    background: #fff;
    border: 1px solid var(--chat-border);
    text-align: left;
    word-break: break-word;
    line-height: 1.45;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.chat-message.is-own .chat-message-bubble {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border-color: #bfdbfe;
}

/* --- Login & Compose --- */

.chat-widget-login,
.chat-widget-compose {
    padding: 1rem 1.1rem 1.1rem;
    border-top: 1px solid var(--chat-border);
    background: #fff;
}

.chat-widget-section-title {
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.25rem;
}

.chat-widget-section-copy {
    margin: 0 0 0.85rem;
    color: var(--chat-muted);
    font-size: 0.88rem;
}

.chat-widget-login form,
.chat-compose-form {
    display: grid;
    gap: 0.7rem;
}

.chat-input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
}

.chat-widget-login input,
.chat-compose-form textarea {
    width: 100%;
    border: 1px solid var(--chat-border);
    border-radius: 12px;
    padding: 0.7rem 0.85rem;
    font: inherit;
    background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chat-widget-login input:focus,
.chat-compose-form textarea:focus {
    outline: none;
    border-color: #93c5fd;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.chat-compose-form {
    grid-template-columns: 1fr auto;
    align-items: end;
}

.chat-compose-form textarea {
    resize: none;
    min-height: 48px;
}

.chat-compose-form .chat-widget-error {
    grid-column: 1 / -1;
}

.chat-widget-btn {
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--chat-accent), var(--chat-primary));
    color: #fff;
    padding: 0.72rem 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.chat-widget-btn:hover:not(:disabled) {
    transform: translateY(-1px);
}

.chat-widget-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.chat-widget-btn-send {
    width: 3rem;
    height: 3rem;
    padding: 0;
    display: grid;
    place-items: center;
    border-radius: 14px;
}

.chat-widget-btn-send svg {
    width: 1.1rem;
    height: 1.1rem;
}

.chat-widget-error {
    color: #dc2626;
    font-size: 0.82rem;
}

/* --- Chat Page --- */

.chat-page {
    width: min(980px, 100%);
    margin: 0 auto 2rem;
    padding: 0 0.5rem;
}

.chat-page-intro {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    padding: 2rem 2.2rem;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(8, 47, 112, 0.96), rgba(29, 116, 245, 0.92));
    color: #fff;
    box-shadow: var(--chat-shadow);
}

.chat-page-intro-content {
    flex: 1;
    min-width: 0;
}

.chat-page-logo-wrap {
    flex-shrink: 0;
    display: grid;
    place-items: center;
    padding: 0.85rem 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.18);
}

.chat-page-logo {
    display: block;
    width: min(220px, 28vw);
    height: auto;
}

.chat-page-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.chat-page-title {
    margin: 0.85rem 0 0.5rem;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.chat-page-lead {
    max-width: 620px;
    margin: 0;
    font-size: 1.02rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
}

.chat-page-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin: 1.2rem 0 0;
    padding: 0;
    list-style: none;
}

.chat-page-features li {
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 0.86rem;
    font-weight: 600;
}

.chat-page-panel {
    min-height: clamp(520px, calc(100vh - 420px), 680px);
}

.chat-page-panel .chat-widget-messages {
    min-height: 360px;
}

.site-footer-text {
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.88rem;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .chat-widget-root {
        right: 0.85rem;
        bottom: 0.85rem;
    }

    .chat-input-row {
        grid-template-columns: 1fr;
    }

    .chat-page-intro {
        flex-direction: column;
        align-items: stretch;
        padding: 1.4rem 1.2rem;
    }

    .chat-page-logo-wrap {
        align-self: center;
        width: 100%;
        max-width: 280px;
    }

    .chat-page-logo {
        width: 100%;
    }

    .chat-page-panel {
        min-height: 520px;
    }
}