:root {
    --wa-header: #075e54;
    --wa-header-soft: #128c7e;
    --wa-bg: #ece5dd;
    --wa-panel: #f0f2f5;
    --wa-incoming: #ffffff;
    --wa-outgoing: #dcf8c6;
    --wa-text: #111b21;
    --wa-muted: #667781;
    --wa-border: #d1d7db;
    --wa-accent: #25d366;
    --wa-danger: #b3261e;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    height: 100%;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--wa-text);
    background: radial-gradient(circle at top, #0f7468 0, #0b5a50 22%, #0a3d37 58%, #072925 100%);
}

body {
    min-height: 100vh;
    padding: 20px;
}

.wa-shell {
    width: min(1320px, 100%);
    height: min(920px, calc(100vh - 40px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 340px 1fr;
    background: #ffffff;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
}

.wa-sidebar {
    background: var(--wa-panel);
    border-right: 1px solid var(--wa-border);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.wa-sidebar-header {
    padding: 16px;
    background: linear-gradient(135deg, var(--wa-header) 0%, var(--wa-header-soft) 100%);
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.wa-sidebar-header h1 {
    margin: 0;
    font-size: 1.05rem;
    letter-spacing: 0.2px;
}

.wa-status-chip {
    font-size: 0.72rem;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.wa-sidebar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.wa-logout-button {
    border: 1px solid rgba(255, 255, 255, 0.42);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 999px;
    height: 28px;
    padding: 0 12px;
    font-size: 0.75rem;
    cursor: pointer;
}

.wa-logout-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.wa-open-form {
    padding: 14px 12px;
    border-bottom: 1px solid var(--wa-border);
    display: grid;
    gap: 8px;
}

.wa-open-form label {
    font-size: 0.79rem;
    color: var(--wa-muted);
    font-weight: 600;
}

.wa-open-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
}

.wa-open-form input {
    border: 1px solid var(--wa-border);
    border-radius: 10px;
    padding: 10px 11px;
    font-size: 0.92rem;
    background: #fff;
}

.wa-open-form button {
    border: 0;
    background: var(--wa-accent);
    color: #fff;
    border-radius: 10px;
    font-weight: 600;
    padding: 0 14px;
    cursor: pointer;
}

.wa-open-form button:hover {
    filter: brightness(0.94);
}

.wa-conversation-list {
    flex: 1;
    min-height: 0;
    overflow: auto;
}

.wa-conversation-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    border: 0;
    width: 100%;
    text-align: left;
    background: transparent;
    padding: 12px 14px;
    border-bottom: 1px solid #e8edef;
    cursor: pointer;
}

.wa-conversation-item:hover {
    background: #e5e7ea;
}

.wa-conversation-item.active {
    background: #d9fdd3;
}

.wa-conversation-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: baseline;
}

.wa-conversation-title {
    font-weight: 700;
    font-size: 0.94rem;
}

.wa-conversation-date {
    font-size: 0.75rem;
    color: var(--wa-muted);
    white-space: nowrap;
}

.wa-conversation-preview {
    font-size: 0.84rem;
    color: var(--wa-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wa-main {
    display: grid;
    grid-template-rows: auto 1fr auto auto;
    background: var(--wa-bg);
    min-height: 0;
}

.wa-main-header {
    background: #f0f2f5;
    border-bottom: 1px solid var(--wa-border);
    padding: 12px 16px;
    display: grid;
    gap: 2px;
}

.wa-main-title {
    font-weight: 700;
    font-size: 1rem;
}

.wa-main-subtitle {
    color: var(--wa-muted);
    font-size: 0.8rem;
}

.wa-messages {
    min-height: 0;
    overflow: auto;
    padding: 18px;
    background:
        linear-gradient(rgba(236, 229, 221, 0.86), rgba(236, 229, 221, 0.86)),
        repeating-linear-gradient(
            45deg,
            rgba(255, 255, 255, 0.55),
            rgba(255, 255, 255, 0.55) 12px,
            rgba(0, 0, 0, 0.02) 12px,
            rgba(0, 0, 0, 0.02) 24px
        );
}

.wa-empty-state {
    max-width: 560px;
    margin: 18vh auto 0;
    background: rgba(255, 255, 255, 0.75);
    border-radius: 12px;
    border: 1px solid #d8e0e3;
    padding: 22px;
    text-align: center;
}

.wa-empty-state h2 {
    margin: 0 0 8px;
    font-size: 1.16rem;
}

.wa-empty-state p {
    margin: 0;
    color: var(--wa-muted);
    line-height: 1.45;
}

.wa-message-row {
    display: flex;
    margin-bottom: 10px;
}

.wa-message-row.mine {
    justify-content: flex-end;
}

.wa-bubble {
    max-width: min(74%, 650px);
    background: var(--wa-incoming);
    border-radius: 10px;
    border-top-left-radius: 0;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.12);
    padding: 8px 10px;
    display: grid;
    gap: 6px;
}

.wa-message-row.mine .wa-bubble {
    background: var(--wa-outgoing);
    border-top-left-radius: 10px;
    border-top-right-radius: 0;
}

.wa-meta {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: center;
    font-size: 0.73rem;
    color: var(--wa-muted);
}

.wa-sender {
    font-weight: 700;
    color: #1f2c34;
}

.wa-text {
    white-space: pre-wrap;
    line-height: 1.4;
    word-wrap: break-word;
}

.wa-attachments {
    display: grid;
    gap: 8px;
}

.wa-attachments img,
.wa-attachments video {
    max-width: min(280px, 100%);
    border-radius: 8px;
    display: block;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.wa-attachments a {
    color: #0b57d0;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.wa-pending-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 16px 10px;
}

.wa-pending-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: #f8fbf6;
    border: 1px solid #c8e6c9;
    color: #356f3f;
    border-radius: 999px;
    font-size: 0.78rem;
}

.wa-composer {
    border-top: 1px solid var(--wa-border);
    background: #f0f2f5;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: end;
    gap: 10px;
    padding: 10px 14px;
}

#attachmentInput {
    display: none;
}

.wa-attach-button {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--wa-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--wa-header);
    background: #fff;
}

.wa-attach-button:hover {
    background: #e7f6f4;
}

#messageInput {
    resize: none;
    max-height: 140px;
    min-height: 40px;
    border-radius: 14px;
    border: 1px solid var(--wa-border);
    padding: 10px 12px;
    font-family: inherit;
    font-size: 0.95rem;
}

#sendMessageButton {
    height: 40px;
    border-radius: 999px;
    border: 0;
    padding: 0 18px;
    background: var(--wa-header);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

#sendMessageButton:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.wa-toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    background: #1f2c34;
    color: #fff;
    padding: 10px 14px;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
    z-index: 9999;
    font-size: 0.88rem;
}

.wa-toast.error {
    background: var(--wa-danger);
}

@media (max-width: 980px) {
    body {
        padding: 0;
    }

    .wa-shell {
        width: 100%;
        height: 100vh;
        border-radius: 0;
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .wa-sidebar {
        max-height: 44vh;
        border-right: 0;
        border-bottom: 1px solid var(--wa-border);
    }

    .wa-bubble {
        max-width: 90%;
    }
}

.tg-login-shell {
    min-height: calc(100vh - 40px);
    display: grid;
    place-items: center;
}

.tg-login-card {
    width: min(440px, 100%);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    padding: 28px;
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.24);
}

.tg-login-card h1 {
    margin: 0;
    font-size: 1.35rem;
}

.tg-login-subtitle {
    margin: 8px 0 0;
    color: var(--wa-muted);
    font-size: 0.92rem;
}

.tg-login-form {
    margin-top: 18px;
    display: grid;
    gap: 14px;
}

.tg-login-field {
    display: grid;
    gap: 6px;
}

.tg-login-field label {
    font-size: 0.82rem;
    color: #304047;
    font-weight: 600;
}

.tg-login-field input {
    border: 1px solid #cdd8dd;
    border-radius: 10px;
    height: 42px;
    padding: 0 11px;
    font-size: 0.95rem;
}

.tg-login-field span {
    color: var(--wa-danger);
    font-size: 0.78rem;
}

.tg-login-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: #3a4b52;
}

.tg-login-form button {
    border: 0;
    border-radius: 10px;
    height: 44px;
    background: linear-gradient(135deg, #0b6a5f, #149d8f);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
}

.tg-login-form button:hover {
    filter: brightness(0.95);
}

.tg-login-alert {
    margin-top: 16px;
    border-radius: 10px;
    border: 1px solid #f3c8c5;
    background: #fff4f4;
    color: #8c221a;
    padding: 10px 12px;
    font-size: 0.85rem;
}