:root {
    --support-background: #070b12;
    --support-surface: #0c1524;
    --support-text: #f8fbff;
    --support-muted: #9aadbf;
    --support-cyan: #00d2ff;
    --support-cyan-soft: rgba(0, 210, 255, 0.14);
    --support-violet: #5b5bd6;
    --support-violet-soft: rgba(91, 91, 214, 0.18);
    --support-danger: #ff5e7b;
    --support-border: rgba(85, 210, 255, 0.18);
    --support-shadow: 0 16px 45px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
    background: var(--support-background);
    color: var(--support-text);
    font-family: Tahoma, Arial, sans-serif;
}

button,
input,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.support-app {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100dvh;
    max-width: 860px;
    margin: 0 auto;
    overflow: hidden;
    background:
        radial-gradient(circle at 85% 5%, rgba(0, 210, 255, 0.10), transparent 30%),
        radial-gradient(circle at 10% 100%, rgba(91, 91, 214, 0.12), transparent 34%),
        var(--support-background);
}

.support-app::before {
    position: absolute;
    inset: 0;
    pointer-events: none;
    content: "";
    opacity: 0.32;
    background-image: radial-gradient(rgba(120, 230, 255, 0.12) 1px, transparent 1px);
    background-size: 22px 22px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 72%);
}

.support-header {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 72px;
    padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
    border-bottom: 1px solid var(--support-border);
    background: rgba(9, 18, 32, 0.84);
    backdrop-filter: blur(18px);
}

.support-icon-button {
    display: inline-grid;
    width: 42px;
    height: 42px;
    place-items: center;
    flex: 0 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--support-muted);
    transition: transform 160ms ease, color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.support-icon-button:hover,
.support-icon-button:focus-visible {
    border-color: rgba(0, 210, 255, 0.45);
    outline: none;
    background: var(--support-cyan-soft);
    color: var(--support-cyan);
}

.support-icon-button:active {
    transform: scale(0.95);
}

.support-icon-button svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.support-brand-avatar {
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    border: 1px solid rgba(0, 210, 255, 0.38);
    border-radius: 15px;
    background: #13243a;
    box-shadow: 0 0 0 4px rgba(0, 210, 255, 0.05);
    object-fit: cover;
}

.support-header-info {
    display: grid;
    min-width: 0;
    flex: 1;
    gap: 3px;
}

.support-header-title {
    overflow: hidden;
    margin: 0;
    color: var(--support-text);
    font-size: 0.95rem;
    font-weight: 900;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.support-header-status {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--support-muted);
    font-size: 0.68rem;
}

.support-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #718397;
}

.support-header-status.online {
    color: var(--support-cyan);
}

.support-header-status.online .support-status-dot {
    background: var(--support-cyan);
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.8);
}

.support-chat {
    position: relative;
    z-index: 1;
    display: flex;
    min-height: 0;
    flex: 1;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    padding: 22px 16px 16px;
    scroll-behavior: smooth;
}

.support-welcome {
    display: grid;
    gap: 7px;
    width: min(100%, 430px);
    margin: auto;
    padding: 22px;
    border: 1px solid var(--support-border);
    border-radius: 20px;
    background: rgba(12, 25, 42, 0.78);
    box-shadow: var(--support-shadow);
    color: var(--support-muted);
    font-size: 0.8rem;
    line-height: 1.75;
    text-align: center;
}

.support-welcome strong {
    color: var(--support-cyan);
    font-size: 0.92rem;
}

.support-message-row {
    display: flex;
    width: 100%;
}

.support-message-row.user {
    justify-content: flex-start;
}

.support-message-row.admin {
    justify-content: flex-end;
}

.support-message {
    width: fit-content;
    max-width: min(79%, 620px);
    overflow-wrap: anywhere;
    padding: 11px 13px 8px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 18px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
    font-size: 0.86rem;
    font-weight: 500;
    line-height: 1.75;
    word-break: break-word;
}

.support-message.user {
    border-top-right-radius: 5px;
    background: linear-gradient(145deg, rgba(0, 169, 222, 0.94), rgba(0, 111, 191, 0.92));
    color: #ffffff;
}

.support-message.admin {
    border-color: rgba(164, 155, 255, 0.42);
    border-top-left-radius: 5px;
    background: linear-gradient(145deg, rgba(86, 79, 183, 0.78), rgba(40, 35, 105, 0.90));
    color: #ffffff;
}

.support-message-image {
    display: block;
    width: min(100%, 320px);
    max-height: 280px;
    margin: 0 0 8px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    cursor: zoom-in;
    object-fit: cover;
}

.support-message-text {
    white-space: pre-wrap;
}

.support-message-text a {
    color: #ffffff;
    font-weight: 900;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.support-message-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 7px;
    color: rgba(255, 255, 255, 0.80);
    font-size: 0.61rem;
}

.support-message-status.failed {
    color: #ffd0d9;
    font-weight: 900;
}

.support-typing {
    display: none;
    align-items: center;
    gap: 8px;
    width: fit-content;
    margin: 0 16px 5px auto;
    padding: 9px 12px;
    border: 1px solid rgba(164, 155, 255, 0.38);
    border-radius: 14px 14px 5px 14px;
    background: rgba(56, 49, 128, 0.62);
    color: #e8e6ff;
    font-size: 0.68rem;
}

.support-typing.visible {
    display: flex;
}

.support-typing-dots {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    direction: ltr;
}

.support-typing-dots i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #c7c3ff;
    animation: supportTypingPulse 1.15s infinite ease-in-out;
}

.support-typing-dots i:nth-child(2) {
    animation-delay: 0.16s;
}

.support-typing-dots i:nth-child(3) {
    animation-delay: 0.32s;
}

@keyframes supportTypingPulse {
    0%,
    60%,
    100% {
        opacity: 0.35;
        transform: translateY(0);
    }

    30% {
        opacity: 1;
        transform: translateY(-3px);
    }
}

.support-composer {
    position: relative;
    z-index: 3;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--support-border);
    background: rgba(9, 18, 32, 0.90);
    backdrop-filter: blur(18px);
}

.support-attachment-preview {
    display: none;
    align-items: center;
    gap: 10px;
    margin: 0 4px 9px;
    padding: 9px;
    border: 1px solid rgba(0, 210, 255, 0.22);
    border-radius: 14px;
    background: rgba(0, 210, 255, 0.05);
}

.support-attachment-preview.visible {
    display: flex;
}

.support-preview-image {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    object-fit: cover;
}

.support-preview-info {
    min-width: 0;
    flex: 1;
    overflow: hidden;
    color: var(--support-muted);
    font-size: 0.66rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.support-preview-remove {
    width: 30px;
    height: 30px;
    border: 0;
    border-radius: 10px;
    background: rgba(255, 94, 123, 0.14);
    color: var(--support-danger);
    font-size: 1.1rem;
}

.support-composer-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}

.support-input-shell {
    display: flex;
    min-width: 0;
    flex: 1;
    align-items: flex-end;
    gap: 4px;
    padding: 5px 8px;
    border: 1px solid rgba(0, 210, 255, 0.22);
    border-radius: 20px;
    background: rgba(6, 13, 24, 0.85);
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

.support-input-shell:focus-within {
    border-color: rgba(0, 210, 255, 0.65);
    box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.08);
}

.support-input {
    width: 100%;
    min-height: 25px;
    max-height: 112px;
    resize: none;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--support-text);
    font-size: 0.82rem;
    line-height: 1.55;
}

.support-input::placeholder {
    color: #6f8498;
}

.support-send {
    display: inline-grid;
    width: 46px;
    height: 46px;
    place-items: center;
    flex: 0 0 auto;
    border: 1px solid rgba(159, 247, 255, 0.45);
    border-radius: 50%;
    background: linear-gradient(145deg, #00d2ff, #008bd3);
    box-shadow: 0 0 18px rgba(0, 210, 255, 0.28);
    color: #ffffff;
    transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.support-send:hover,
.support-send:focus-visible {
    outline: none;
    box-shadow: 0 0 24px rgba(0, 210, 255, 0.52);
}

.support-send:active {
    transform: scale(0.95);
}

.support-send:disabled {
    cursor: wait;
    opacity: 0.58;
}

.support-send svg {
    width: 21px;
    height: 21px;
    fill: currentColor;
    transform: rotate(180deg);
}

.support-emoji-panel {
    position: absolute;
    right: 4px;
    bottom: calc(100% + 7px);
    display: none;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 6px;
    width: min(245px, calc(100vw - 28px));
    padding: 10px;
    border: 1px solid var(--support-border);
    border-radius: 16px;
    background: rgba(14, 27, 45, 0.97);
    box-shadow: var(--support-shadow);
}

.support-emoji-panel.visible {
    display: grid;
}

.support-emoji {
    height: 34px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    font-size: 1.25rem;
}

.support-emoji:hover {
    background: var(--support-cyan-soft);
}

.support-lightbox {
    position: fixed;
    z-index: 100;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(1, 5, 10, 0.84);
    backdrop-filter: blur(12px);
}

.support-lightbox.visible {
    display: flex;
}

.support-lightbox-image {
    max-width: min(96vw, 1000px);
    max-height: 88vh;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 17px;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.60);
    object-fit: contain;
}

.support-lightbox-close {
    position: absolute;
    top: calc(16px + env(safe-area-inset-top));
    left: 16px;
    display: inline-grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    background: rgba(7, 15, 26, 0.74);
    color: #ffffff;
    font-size: 1.5rem;
}

.support-toast {
    position: fixed;
    z-index: 110;
    top: calc(18px + env(safe-area-inset-top));
    left: 50%;
    max-width: calc(100vw - 36px);
    padding: 10px 15px;
    border: 1px solid var(--support-border);
    border-radius: 16px;
    background: rgba(11, 24, 40, 0.94);
    box-shadow: var(--support-shadow);
    color: #e7faff;
    font-size: 0.75rem;
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -18px);
    transition: opacity 180ms ease, transform 180ms ease;
}

.support-toast.visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

@media (max-width: 480px) {
    .support-chat {
        padding: 16px 11px 12px;
    }

    .support-message {
        max-width: 82%;
        font-size: 0.81rem;
    }

    .support-header {
        padding-inline: 11px;
    }

    .support-composer {
        padding-inline: 10px;
    }
}