:root {
    color-scheme: light;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    background: #f7f8fa;
    color: #1f2937;
}

.app {
    display: flex;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.chat {
    flex: 1;
    height: 100%;
    margin: 0;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 0;
    display: flex;
    flex-direction: column;
}

.chat__header {
    padding: 16px 20px;
    border-bottom: 1px solid #e5e7eb;
    font-weight: 600;
    background: #f9fafb;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.chat__settings {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid #d1d5db;
    background: #ffffff;
    color: #1f2937;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
}

.chat__settings:hover {
    background: #f3f4f6;
}

.chat__messages {
    flex: 1;
    padding: 16px 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    max-width: 70%;
    padding: 10px 12px;
    border-radius: 12px;
    line-height: 1.4;
    font-size: 14px;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.message--out {
    align-self: flex-end;
    background: #2563eb;
    color: #ffffff;
}

.message--in {
    align-self: flex-start;
    background: #f3f4f6;
    color: #111827;
}

/* Typing / loading indicator */
.message--loading {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 12px 16px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #9ca3af;
    animation: typing-bounce 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(1) {
    animation-delay: 0s;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing-bounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        background: #9ca3af;
    }

    30% {
        transform: translateY(-6px);
        background: #6b7280;
    }
}

.chat__footer {
    padding: 16px 20px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 12px;
    background: #f9fafb;
}

.chat__input {
    flex: 1;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    background: #ffffff;
    color: #111827;
}

.chat__input::placeholder {
    color: #9ca3af;
}

.chat__button {
    padding: 10px 16px;
    border-radius: 8px;
    border: none;
    background: #2563eb;
    color: #ffffff;
    font-weight: 600;
    cursor: pointer;
}

.chat__button:disabled {
    background: #cbd5f5;
    color: #ffffff;
    cursor: not-allowed;
    opacity: 0.75;
}

.chat__button--secondary {
    background: #e5e7eb;
    color: #1f2937;
}

.chat__button--secondary:hover {
    background: #d1d5db;
}

.chat__status {
    padding: 8px 20px 0;
    font-size: 12px;
    color: #6b7280;
}

.drawer {
    width: 320px;
    max-width: 100%;
    height: 100%;
    border-left: 1px solid #e5e7eb;
    background: #ffffff;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transform: translateX(100%);
    transition: transform 0.25s ease;
}

.drawer--open {
    transform: translateX(0%);
}

.drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.drawer__title {
    margin: 0;
    font-size: 18px;
}

.drawer__close {
    border: 1px solid #d1d5db;
    background: #ffffff;
    border-radius: 8px;
    padding: 4px 8px;
    cursor: pointer;
}

.drawer__form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.drawer__field {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 6px 12px;
    align-items: center;
    font-size: 13px;
    color: #1f2937;
}

.drawer__label {
    font-weight: 600;
}

.drawer__range {
    grid-column: 1 / -1;
    width: 100%;
}

.drawer__value {
    font-variant-numeric: tabular-nums;
}

.drawer__hint {
    margin: 0;
    font-size: 12px;
    color: #6b7280;
}

@media (max-width: 900px) {
    .drawer {
        position: absolute;
        right: 0;
        top: 0;
        height: 100vh;
        box-shadow: -12px 0 24px rgba(15, 23, 42, 0.08);
    }
}