@font-face {
    font-family: "IRANSans";
    src: url("/fonts/iransansweb.woff2") format("woff2");
    font-display: swap;
}

:root {
    --support-bg: #f2f5ef;
    --support-panel: #fff;
    --support-panel-soft: #f8faf7;
    --support-text: #182114;
    --support-muted: #667063;
    --support-border: #dfe6db;
    --support-primary: #778a5e;
    --support-primary-strong: #617448;
    --support-own: #dfe9d3;
    --support-shadow: 0 24px 70px rgba(41, 55, 32, .13);
}

html[data-theme="dark"] {
    --support-bg: #0f172a;
    --support-panel: #111827;
    --support-panel-soft: #182233;
    --support-text: #f8fafc;
    --support-muted: #aeb9c8;
    --support-border: #334155;
    --support-primary: #9dad83;
    --support-primary-strong: #b4c79a;
    --support-own: #31432b;
    --support-shadow: 0 24px 70px rgba(0, 0, 0, .34);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 10% 0%, rgba(157, 173, 131, .18), transparent 34rem),
        var(--support-bg);
    color: var(--support-text);
    font-family: "IRANSans", Tahoma, sans-serif;
}

button,
input,
textarea {
    font: inherit;
}

.support-shell {
    width: min(100% - 2rem, 920px);
    min-height: 100dvh;
    margin: 0 auto;
    padding: 1.25rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.support-brand {
    display: flex;
    align-items: center;
    gap: .75rem;
    min-height: 64px;
    padding: .65rem .8rem;
    border: 1px solid var(--support-border);
    border-radius: 20px;
    background: color-mix(in srgb, var(--support-panel) 90%, transparent);
    box-shadow: 0 8px 28px rgba(0, 0, 0, .06);
    backdrop-filter: blur(16px);
}

.support-brand__logo {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 14px;
    background: var(--support-panel-soft);
}

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

.support-brand > span:nth-child(2) {
    display: flex;
    flex: 1;
    min-width: 0;
    flex-direction: column;
}

.support-brand strong {
    font-size: 1rem;
}

.support-brand small,
.support-chat-head small {
    color: var(--support-muted);
}

.support-theme-toggle {
    width: 42px;
    height: 42px;
    border: 1px solid var(--support-border);
    border-radius: 13px;
    background: var(--support-panel-soft);
    color: var(--support-text);
}

.support-alert {
    margin: 0;
    border-radius: 16px;
}

.support-login-card {
    width: min(100%, 480px);
    margin: auto;
    padding: clamp(1.25rem, 5vw, 2.5rem);
    border: 1px solid var(--support-border);
    border-radius: 28px;
    background: var(--support-panel);
    box-shadow: var(--support-shadow);
    text-align: center;
}

.support-login-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1rem;
    display: grid;
    place-items: center;
    border-radius: 24px;
    background: color-mix(in srgb, var(--support-primary) 18%, var(--support-panel));
    color: var(--support-primary);
    font-size: 1.75rem;
}

.support-login-card h1 {
    margin: 0 0 .65rem;
    font-size: 1.55rem;
}

.support-login-card > p {
    margin: 0 0 1.4rem;
    color: var(--support-muted);
    line-height: 1.9;
}

.support-login-form {
    display: grid;
    gap: .75rem;
    text-align: right;
}

.support-login-form label {
    font-weight: 800;
}

.support-login-form .form-control {
    border-color: var(--support-border);
    background: var(--support-panel-soft);
    color: var(--support-text);
}

.support-login-form .btn-primary,
.support-send-button {
    border-color: var(--support-primary);
    background: var(--support-primary);
    color: #fff;
}

.support-login-form small {
    color: var(--support-muted);
    text-align: center;
}

.support-otp {
    direction: ltr;
    text-align: center;
    letter-spacing: .45rem;
}

.support-login-actions {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: .5rem;
}

.support-login-actions form {
    margin: 0;
}

.support-security-note {
    margin-top: 1.4rem;
    padding: .85rem;
    border-radius: 16px;
    background: var(--support-panel-soft);
    color: var(--support-muted);
    font-size: .82rem;
    line-height: 1.8;
}

.support-chat-card {
    min-height: calc(100dvh - 120px);
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr) auto;
    overflow: hidden;
    border: 1px solid var(--support-border);
    border-radius: 28px;
    background: var(--support-panel);
    box-shadow: var(--support-shadow);
}

.support-chat-head {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: 1rem 1.2rem;
    border-bottom: 1px solid var(--support-border);
}

.support-chat-head > span:nth-child(2) {
    min-width: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.support-chat-head small {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.support-chat-head form {
    margin: 0;
}

.support-chat-avatar {
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    background: color-mix(in srgb, var(--support-primary) 18%, var(--support-panel));
    color: var(--support-primary);
}

.support-privacy-banner {
    padding: .6rem 1rem;
    background: color-mix(in srgb, var(--support-primary) 11%, var(--support-panel));
    color: var(--support-muted);
    font-size: .78rem;
    text-align: center;
}

.support-message-list {
    min-height: 0;
    overflow: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
    scroll-behavior: smooth;
}

.support-message {
    width: fit-content;
    max-width: min(78%, 580px);
    padding: .7rem .85rem;
    align-self: flex-start;
    border: 1px solid var(--support-border);
    border-radius: 18px 18px 18px 5px;
    background: var(--support-panel-soft);
    color: var(--support-text);
    overflow-wrap: anywhere;
}

.support-message.is-own {
    align-self: flex-end;
    border-color: color-mix(in srgb, var(--support-primary) 35%, var(--support-border));
    border-radius: 18px 18px 5px 18px;
    background: var(--support-own);
}

.support-message strong {
    display: block;
    margin-bottom: .28rem;
    font-size: .77rem;
    color: var(--support-primary-strong);
}

.support-message p {
    margin: 0;
    line-height: 1.8;
    white-space: pre-wrap;
}

.support-message time {
    display: block;
    margin-top: .4rem;
    color: var(--support-muted);
    font-size: .68rem;
    direction: ltr;
    text-align: left;
}

.support-attachment {
    margin-top: .4rem;
    padding: .45rem .55rem;
    display: flex;
    align-items: center;
    gap: .4rem;
    border: 1px solid var(--support-border);
    border-radius: 11px;
    color: var(--support-text);
    text-decoration: none;
}

.support-empty {
    margin: auto;
    display: grid;
    justify-items: center;
    gap: .35rem;
    color: var(--support-muted);
    text-align: center;
}

.support-empty i {
    font-size: 2rem;
}

.support-composer {
    min-width: 0;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: end;
    gap: .55rem;
    padding: .85rem 1rem;
    border-top: 1px solid var(--support-border);
    background: var(--support-panel);
}

.support-composer textarea {
    width: 100%;
    min-height: 44px;
    max-height: 150px;
    resize: none;
    padding: .7rem .8rem;
    border: 1px solid var(--support-border);
    border-radius: 15px;
    outline: none;
    background: var(--support-panel-soft);
    color: var(--support-text);
}

.support-composer textarea:focus {
    border-color: var(--support-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--support-primary) 18%, transparent);
}

.support-file-button,
.support-send-button {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    cursor: pointer;
}

.support-file-button {
    border: 1px solid var(--support-border);
    background: var(--support-panel-soft);
    color: var(--support-text);
}

.support-file-button input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.support-send-button {
    border: 0;
}

.support-file-preview,
.support-composer-status {
    grid-column: 1 / -1;
    color: var(--support-muted);
    font-size: .75rem;
}

.support-composer-status.is-error {
    color: #dc3545;
}

.is-muted {
    color: var(--support-muted);
    font-style: italic;
}

html[data-theme="dark"] .btn-light,
html[data-theme="dark"] .form-control {
    border-color: var(--support-border) !important;
    background: var(--support-panel-soft) !important;
    color: var(--support-text) !important;
}

@media (max-width: 640px) {
    .support-shell {
        width: 100%;
        min-height: 100dvh;
        padding: 0;
        gap: 0;
    }

    .support-brand {
        min-height: 58px;
        border-width: 0 0 1px;
        border-radius: 0;
        box-shadow: none;
    }

    .support-brand__logo {
        width: 40px;
        height: 40px;
    }

    .support-alert {
        margin: .65rem .75rem 0;
    }

    .support-login-card {
        width: calc(100% - 1.5rem);
        margin: auto .75rem;
        border-radius: 22px;
    }

    .support-chat-card {
        min-height: calc(100dvh - 58px);
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .support-chat-head {
        padding: .75rem;
    }

    .support-chat-head .btn {
        width: 42px;
        height: 42px;
        padding: 0;
        font-size: 0;
    }

    .support-chat-head .btn i {
        font-size: .9rem;
    }

    .support-message-list {
        padding: .9rem .7rem;
    }

    .support-message {
        max-width: 88%;
    }

    .support-composer {
        padding: .65rem;
        padding-bottom: max(.65rem, env(safe-area-inset-bottom));
    }
}