/* ========================================================================
   service-detail.html — Claude UI inspired
   - Warm dark sidebar (matches index)
   - Warm cream main background, coral accents
   - Top nav (back link) above app shell
   - Off-canvas mobile sidebar handled by common.css
   ======================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--mk-font-sans);
    line-height: 1.6;
    color: var(--mk-color-text);
    background: var(--mk-color-bg);
}

/* ---------- Top nav (back link) ---------- */
.top-nav {
    background: var(--mk-color-bg);
    border-bottom: 1px solid var(--mk-color-border);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: var(--mk-z-sticky, 100);
}
.top-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}
.nav-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--mk-color-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}
.nav-back:hover { color: var(--mk-color-brand-500); }

/* ---------- App shell ---------- */
.app-container {
    display: flex;
    min-height: calc(100vh - 60px);
    overflow: hidden;
}

/* 사이드바(.sidebar 계열) 스타일은 css/core/app-shell.css로 통합됨 — 모든 페이지 공용. */

/* ---------- Main content ---------- */
.main-content {
    flex: 1;
    overflow: auto;
    background: var(--mk-color-bg);
}

.content-wrapper {
    padding: 2rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* ---------- Service header ---------- */
.service-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--mk-color-bg-subtle);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-xl);
}
.service-header-image {
    width: 96px;
    height: 96px;
    flex-shrink: 0;
    object-fit: contain;
    border-radius: var(--mk-radius-lg);
    background: var(--mk-color-bg);
    padding: 0.5rem;
}
.service-header-content { flex: 1; min-width: 0; }
.service-header-content h1,
.service-title {
    font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
    font-weight: 700;
    color: var(--mk-color-text);
    margin-bottom: 0.375rem;
    letter-spacing: -0.02em;
}
.service-header-content #serviceSubtitle,
.service-subtitle {
    font-size: 1rem;
    color: var(--mk-color-text-muted);
    margin-bottom: 0.5rem;
}
.service-header-content #serviceDescription,
.service-description {
    color: var(--mk-color-text-muted);
    line-height: 1.6;
    max-width: 800px;
    font-size: 0.9375rem;
}

/* ---------- Result chart ---------- */
.result-chart {
    background: var(--mk-color-bg-subtle);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.chart-container { width: 100%; max-width: 100%; }

/* ---------- Demo interface (legacy support) ---------- */
.demo-interface {
    background: var(--mk-color-bg-subtle);
    border-radius: var(--mk-radius-xl);
    box-shadow: var(--mk-shadow-xs);
    border: 1px solid var(--mk-color-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.demo-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--mk-color-border);
    background: var(--mk-color-bg);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.assistant-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--mk-color-brand-500);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: var(--mk-shadow-xs);
}
.assistant-info h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--mk-color-text);
    margin-bottom: 0.125rem;
}
.assistant-info p {
    font-size: 0.75rem;
    color: var(--mk-color-text-muted);
}

/* ---------- Chat area ---------- */
.chat-area {
    background: var(--mk-color-bg-subtle);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-xl);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    min-height: 400px;
    margin-bottom: 1.5rem;
}

.chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2.5rem 1.5rem;
}
.chat-welcome h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--mk-color-text);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}
.chat-welcome p {
    color: var(--mk-color-text-muted);
    margin-bottom: 1rem;
    max-width: 520px;
    line-height: 1.6;
}

.demo-notice {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4375rem 0.875rem;
    background: var(--mk-color-bg);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-pill);
    font-size: 0.8125rem;
    color: var(--mk-color-text-muted);
}

/* ---------- Chat messages ---------- */
.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
}
.message {
    display: flex;
    gap: 0.75rem;
    max-width: 85%;
}
.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}
.user-message .message-content {
    background: var(--mk-color-brand-500);
    color: #fff;
    border-radius: var(--mk-radius-lg) var(--mk-radius-lg) var(--mk-radius-xs) var(--mk-radius-lg);
}
.bot-message { align-self: flex-start; }
.bot-message .message-content {
    background: var(--mk-color-bg);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-lg) var(--mk-radius-lg) var(--mk-radius-lg) var(--mk-radius-xs);
}
.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--mk-color-brand-500);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    font-size: 0.875rem;
}
.message-content {
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    line-height: 1.5;
}

.analysis-result {
    margin-top: 0.75rem;
    padding: 1rem;
    background: var(--mk-color-bg-muted);
    border-radius: var(--mk-radius-md);
    border: 1px solid var(--mk-color-border);
}
.chart-placeholder {
    text-align: center;
    padding: 2rem;
    background: var(--mk-color-bg-muted);
    border-radius: var(--mk-radius-md);
    font-size: 2rem;
    margin-bottom: 0.75rem;
}
.result-summary {
    font-size: 0.8125rem;
    color: var(--mk-color-text-muted);
    font-style: italic;
}

/* ---------- Typing indicator ---------- */
.typing-indicator { display: flex; gap: 0.25rem; align-items: center; }
.typing-indicator span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--mk-color-text-muted);
    animation: typing 1.4s infinite ease-in-out;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
    30% { transform: translateY(-8px); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
    .typing-indicator span { animation: none; opacity: 0.7; }
}

/* ---------- Example questions ---------- */
.example-questions {
    background: var(--mk-color-bg-subtle);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-xl);
    padding: 1.5rem;
}
.example-questions h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--mk-color-text);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}
.questions-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--mk-color-border);
}
.questions-header h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--mk-color-text);
}
.questions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0.75rem;
}
.question-btn {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    background: var(--mk-color-bg);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-lg);
    text-align: left;
    cursor: pointer;
    transition: all var(--mk-motion-duration-base) var(--mk-motion-ease-standard);
    font-size: 0.9375rem;
    color: var(--mk-color-text);
    font-family: inherit;
}
.question-btn:hover {
    border-color: var(--mk-color-brand-400, var(--mk-color-brand-500));
    background: var(--mk-color-bg-subtle);
    transform: translateY(-1px);
    box-shadow: var(--mk-shadow-sm);
}
.question-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--mk-color-brand-50, #fbeae3);
    color: var(--mk-color-brand-700, var(--mk-color-brand-500));
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 0.0625rem;
}
.question-text {
    color: var(--mk-color-text);
    line-height: 1.45;
    word-break: break-word;
}

/* ---------- Responsive (mobile sidebar handled by common.css) ---------- */
@media (max-width: 1023px) {
    .content-wrapper { padding: 1.5rem 1.25rem 4rem; }
    .questions-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
}

@media (max-width: 767px) {
    .top-nav-container { padding: 0 1rem; }
    .content-wrapper { padding: 1.25rem 1rem 3.5rem; }

    .service-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 1.25rem;
    }
    .service-header-image { width: 64px; height: 64px; }

    .chat-area { padding: 1rem; min-height: 320px; }
    .chat-welcome { padding: 1.5rem 0.75rem; }
    .chat-welcome h3 { font-size: 1.125rem; }
    .chat-welcome p { font-size: 0.9375rem; }

    .message { max-width: 92%; }
    .message-content { font-size: 0.875rem; padding: 0.625rem 0.875rem; }

    .example-questions { padding: 1.25rem; }
    .questions-grid { grid-template-columns: 1fr; gap: 0.625rem; }
    .question-btn { padding: 0.75rem 0.875rem; font-size: 0.875rem; }
}

/* ============================================================
   D1 — 자유 입력 form (chat-input-form)
   ============================================================ */
.chat-input-form {
    display: flex;
    align-items: flex-end;
    gap: var(--mk-space-2, 8px);
    padding: var(--mk-space-3, 12px);
    margin-top: var(--mk-space-2, 8px);
    background: var(--mk-color-bg);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-lg);
    box-shadow: var(--mk-shadow-xs);
}
.chat-input-form .chat-input {
    flex: 1;
    padding: var(--mk-space-3, 12px) var(--mk-space-4, 16px);
    font-family: var(--mk-font-sans, inherit);
    font-size: var(--mk-font-size-base, 1rem);
    line-height: var(--mk-line-height-normal, 1.6);
    color: var(--mk-color-text);
    background: var(--mk-color-bg-muted);
    border: 1px solid transparent;
    border-radius: var(--mk-radius-md);
    resize: vertical;
    min-height: 44px;
    transition: border-color var(--mk-duration-fast, 150ms) var(--mk-easing-standard, ease),
                background var(--mk-duration-fast, 150ms) var(--mk-easing-standard, ease);
}
.chat-input-form .chat-input::placeholder { color: var(--mk-color-text-faint); }
.chat-input-form .chat-input:hover { background: var(--mk-color-bg-subtle); }
.chat-input-form .chat-input:focus {
    outline: none;
    background: var(--mk-color-bg);
    border-color: var(--mk-color-brand-500);
    box-shadow: var(--mk-shadow-focus, 0 0 0 3px rgb(201 100 66 / 0.18));
}
.chat-input-form textarea.chat-input { max-height: 200px; }

.chat-send-btn {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    color: #fff;
    background: var(--mk-color-brand-500);
    border: none;
    border-radius: var(--mk-radius-md);
    cursor: pointer;
    transition: background var(--mk-duration-fast, 150ms) var(--mk-easing-standard, ease),
                transform var(--mk-duration-fast, 150ms) var(--mk-easing-standard, ease);
}
.chat-send-btn:hover { background: var(--mk-color-brand-600); }
.chat-send-btn:active { transform: scale(0.96); }
.chat-send-btn:focus-visible {
    outline: 2px solid var(--mk-color-brand-500);
    outline-offset: 2px;
}
.chat-send-btn svg { display: block; }

@media (max-width: 639px) {
    .chat-input-form {
        padding: var(--mk-space-2, 8px);
        border-radius: var(--mk-radius-md);
    }
    .chat-input-form .chat-input {
        font-size: var(--mk-font-size-sm, 0.875rem);
        padding: var(--mk-space-2, 8px) var(--mk-space-3, 12px);
    }
    .chat-send-btn { width: 40px; height: 40px; }
}

/* 파일 업로드 form (remove-bg) */
.chat-input-form-file {
    flex-wrap: wrap;
    gap: var(--mk-space-3, 12px);
}
.chat-input-form-file .chat-file-input {
    flex: 1;
    display: inline-flex;
    align-items: center;
    gap: var(--mk-space-3, 12px);
    padding: var(--mk-space-3, 12px) var(--mk-space-4, 16px);
    background: var(--mk-color-bg-muted);
    border: 1px dashed var(--mk-color-border-strong);
    border-radius: var(--mk-radius-md);
    cursor: pointer;
    transition: border-color var(--mk-duration-fast, 150ms) var(--mk-easing-standard, ease),
                background var(--mk-duration-fast, 150ms) var(--mk-easing-standard, ease);
}
.chat-input-form-file .chat-file-input:hover {
    border-color: var(--mk-color-brand-500);
    background: var(--mk-color-bg-subtle);
}
.chat-input-form-file .chat-file-input input[type="file"] {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
}
.chat-input-form-file .chat-file-cta {
    display: inline-block;
    padding: var(--mk-space-1, 4px) var(--mk-space-3, 12px);
    font-size: var(--mk-font-size-sm, 0.875rem);
    font-weight: var(--mk-font-weight-medium, 500);
    color: #fff;
    background: var(--mk-color-brand-500);
    border-radius: var(--mk-radius-sm);
}
.chat-input-form-file .chat-file-name {
    font-size: var(--mk-font-size-sm, 0.875rem);
    color: var(--mk-color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 280px;
}
.chat-input-form-file .chat-extra-label {
    display: inline-flex;
    align-items: center;
    gap: var(--mk-space-2, 8px);
    font-size: var(--mk-font-size-sm, 0.875rem);
    color: var(--mk-color-text-muted);
}
.chat-input-form-file .chat-extra-select {
    padding: var(--mk-space-2, 8px) var(--mk-space-3, 12px);
    font-family: var(--mk-font-sans, inherit);
    font-size: var(--mk-font-size-sm, 0.875rem);
    color: var(--mk-color-text);
    background: var(--mk-color-bg);
    border: 1px solid var(--mk-color-border);
    border-radius: var(--mk-radius-sm);
    cursor: pointer;
}
.chat-input-form-file .chat-extra-select:focus {
    outline: none;
    border-color: var(--mk-color-brand-500);
    box-shadow: var(--mk-shadow-focus, 0 0 0 3px rgb(201 100 66 / 0.18));
}