/* ============================================================
   AIFACTORY Studio — Chat-based banner creation
   ============================================================ */
:root {
    --stu-accent: #8B6F47;
    --stu-accent-hover: #7A5F3A;
    --stu-accent-soft: rgba(139,111,71,0.12);
    --stu-bg: #F5EDE3;
    --stu-surface: #FFFFFF;
    --stu-surface-alt: #FAF6F1;
    --stu-text: #3E2C1C;
    --stu-text-muted: #8C7A6B;
    --stu-border: rgba(139,111,71,0.18);
    --stu-border-soft: rgba(139,111,71,0.1);
    --stu-danger: #B45749;
    --stu-success: #7A8A4A;
    --stu-warning: #C48B3C;
    --stu-radius: 12px;
    --stu-radius-sm: 8px;
    --stu-transition: 0.18s cubic-bezier(.4,0,.2,1);
    --stu-chat-bg: #faf8f5;
    --stu-msg-ai: #f0ebe4;
    --stu-msg-user: var(--stu-accent);
}
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
body.studio-page {
    font-family:'Inter','Hiragino Sans','Meiryo',sans-serif;
    color:var(--stu-text);
    height:100vh;
    overflow:hidden;
    display:grid;
    grid-template-columns:1fr 420px;
    background:var(--stu-bg);
    -webkit-font-smoothing:antialiased;
    font-size:13px;
}

/* ── Preview (left) ── */
.studio-preview {
    display:flex;
    flex-direction:column;
    background:linear-gradient(135deg,#ede4d8 0%,#e8ddd0 100%);
    border-right:1px solid var(--stu-border);
    overflow:hidden;       /* 子要素にスクロールを委譲 */
    min-height:0;
}
.studio-preview-header {
    display:flex;
    align-items:center;
    gap:14px;
    padding:12px 20px;
    border-bottom:1px solid var(--stu-border-soft);
    background:rgba(255,255,255,0.5);
}
.studio-back {
    color:var(--stu-text-muted);
    text-decoration:none;
    font-size:12px;
    padding:4px 8px;
    border-radius:var(--stu-radius-sm);
    transition:var(--stu-transition);
}
.studio-back:hover { background:var(--stu-accent-soft); color:var(--stu-text); }
.studio-project-name { font-weight:700; font-size:14px; color:var(--stu-text); }

.studio-canvas-area {
    flex:1;
    display:flex;
    align-items:flex-start; /* 上寄せでスクロール自然に */
    justify-content:center;
    padding:24px;
    overflow-y:auto;
    overflow-x:hidden;
    min-height:0;
}
.studio-empty-canvas {
    text-align:center;
    color:var(--stu-text-muted);
    line-height:1.8;
    font-size:13px;
}
.studio-empty-canvas svg { margin-bottom:12px; }
.studio-canvas {
    position:relative;
    box-shadow:0 8px 32px rgba(0,0,0,0.12);
    border-radius:4px;
    overflow:hidden;
    background:#fff;
    flex-shrink:0;
}

/* ── Gallery (左パネル: ブランド/背景/レイアウト一覧) ── */
.studio-gallery {
    width:100%;
    max-width:920px;
}
.studio-gallery-header {
    padding:12px 4px;
    color:var(--stu-text);
    flex-shrink:0;
}
.studio-gallery-header h2 {
    font-size:18px;
    font-weight:700;
    margin-bottom:4px;
}
.studio-gallery-header p {
    font-size:12px;
    color:var(--stu-text-muted);
}

/* URL 再クロール入力欄 */
.studio-recrawl {
    display:flex;
    gap:6px;
    margin-top:10px;
    padding:10px 12px;
    background:var(--stu-surface);
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius-sm);
    align-items:center;
}
.studio-recrawl-label {
    font-size:11px;
    font-weight:600;
    color:var(--stu-text-muted);
    white-space:nowrap;
}
.studio-recrawl input {
    flex:1;
    height:30px;
    padding:0 10px;
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius-sm);
    font-size:12px;
    font-family:inherit;
    background:var(--stu-surface-alt);
    color:var(--stu-text);
}
.studio-recrawl input:focus {
    outline:none;
    border-color:var(--stu-accent);
}
.studio-recrawl-status {
    font-size:11px;
    color:var(--stu-text-muted);
    padding-left:6px;
}
.studio-recrawl-status.is-loading { color:var(--stu-accent); }
.studio-gallery-grid {
    display:grid;
    grid-template-columns:repeat(2, 1fr); /* 基本2列タイル */
    gap:14px;
    padding:8px 4px 16px;
    align-content:start;
}

.stu-gallery-card {
    background:var(--stu-surface);
    border:2px solid var(--stu-border);
    border-radius:var(--stu-radius);
    padding:16px;
    cursor:pointer;
    transition:var(--stu-transition);
    display:flex;
    flex-direction:column;
    gap:8px;
    box-shadow:0 1px 3px rgba(92,64,51,0.06);
}
.stu-gallery-card:hover {
    border-color:var(--stu-accent);
    transform:translateY(-2px);
    box-shadow:0 6px 18px rgba(92,64,51,0.12);
}
.stu-gallery-card-header {
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:8px;
}
.stu-gallery-card-name {
    font-size:14px;
    font-weight:700;
    color:var(--stu-text);
}
.stu-gallery-card-status {
    font-size:10px;
    padding:2px 8px;
    border-radius:999px;
    background:var(--stu-accent-soft);
    color:var(--stu-accent);
    font-weight:600;
}
.stu-gallery-card-status.archived { background:rgba(100,100,100,0.1); color:#888; }
.stu-gallery-card-meta {
    font-size:11px;
    color:var(--stu-text-muted);
}
.stu-gallery-card-desc {
    font-size:12px;
    color:var(--stu-text-muted);
    line-height:1.5;
    min-height:1.5em;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.stu-gallery-card-palette {
    display:flex;
    gap:4px;
    margin-top:4px;
}
.stu-gallery-card-swatch {
    width:20px;
    height:20px;
    border-radius:4px;
    border:1px solid var(--stu-border);
}

.stu-gallery-card.is-create {
    border-style:dashed;
    background:transparent;
    color:var(--stu-accent);
    text-align:center;
    align-items:center;
    justify-content:center;
    min-height:140px;
}
.stu-gallery-card.is-create:hover {
    background:var(--stu-accent-soft);
}
/* ── Brand editor ── */
.stu-brand-editor {
    background:var(--stu-surface);
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius);
    padding:18px;
    box-shadow:0 2px 8px rgba(92,64,51,0.08);
    display:flex;
    flex-direction:column;
    gap:12px;
}
.stu-be-section {
    border-top:1px solid var(--stu-border-soft);
    padding-top:12px;
}
.stu-be-section:first-child { border-top:none; padding-top:0; }
.stu-be-label {
    font-size:11px;
    font-weight:700;
    color:var(--stu-accent);
    text-transform:uppercase;
    letter-spacing:0.06em;
    margin-bottom:6px;
}
.stu-be-input,
.stu-be-textarea {
    width:100%;
    padding:8px 10px;
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius-sm);
    font-size:13px;
    font-family:inherit;
    background:var(--stu-surface-alt);
    color:var(--stu-text);
}
.stu-be-textarea { min-height:60px; resize:vertical; }
.stu-be-input:focus,
.stu-be-textarea:focus { outline:none; border-color:var(--stu-accent); }

.stu-be-row { display:flex; gap:8px; align-items:center; }
.stu-be-grid { display:grid; grid-template-columns:1fr 1fr; gap:8px; }

.stu-be-palette {
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    margin-bottom:8px;
}
.stu-be-palette-item {
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:3px 8px 3px 3px;
    background:var(--stu-surface);
    border:1px solid var(--stu-border);
    border-radius:999px;
    font-size:11px;
}
.stu-be-palette-item .swatch {
    width:18px;height:18px;border-radius:50%;
    border:1px solid var(--stu-border-soft);
}
.stu-be-palette-item .remove {
    border:0;background:transparent;color:var(--stu-text-muted);
    cursor:pointer;font-size:12px;padding:0 4px;
}
.stu-be-palette-add { display:flex; gap:6px; align-items:center; }
.stu-be-palette-add input[type="color"] {
    width:36px;height:30px;padding:2px;
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius-sm);
    background:var(--stu-surface);cursor:pointer;
}

.stu-be-actions {
    display:flex;
    justify-content:flex-end;
    gap:8px;
    border-top:1px solid var(--stu-border-soft);
    padding-top:12px;
}

/* ── サイズ選択カード ── */
.stu-size-card { text-align:center; }
.stu-size-preview-wrap {
    height:180px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:linear-gradient(135deg, var(--stu-surface-alt) 0%, #ede4d8 100%);
    border-radius:var(--stu-radius-sm);
    margin-bottom:8px;
}
.stu-size-preview {
    background:var(--stu-surface);
    border:2px solid var(--stu-accent);
    border-radius:4px;
    box-shadow:0 4px 12px rgba(0,0,0,0.08);
    display:flex;
    align-items:center;
    justify-content:center;
    color:var(--stu-text-muted);
    font-size:10px;
    font-weight:600;
    flex-shrink:0;
}
.stu-size-ratio { font-family:'SF Mono', monospace; }

.stu-gallery-card.is-create .plus {
    width:36px;height:36px;border-radius:50%;
    background:var(--stu-accent-soft);
    display:flex;align-items:center;justify-content:center;
}

/* ── ターゲット/ペルソナ カード ── */
.stu-target-avatar {
    width:80px;
    height:80px;
    border-radius:50%;
    background:var(--stu-surface-alt);
    margin:0 auto 8px;
    overflow:hidden;
    border:2px solid var(--stu-border);
}
.stu-target-avatar img { width:100%; height:100%; display:block; }
.stu-target-meta {
    font-size:11px;
    color:var(--stu-text-muted);
    text-align:center;
    line-height:1.5;
}
.stu-gallery-card.target-card { text-align:center; }

.stu-persona-card {
    background:var(--stu-surface);
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius);
    padding:18px;
    box-shadow:0 2px 8px rgba(92,64,51,0.08);
    margin-top:8px;
    display:grid;
    grid-template-columns:120px 1fr;
    gap:18px;
    align-items:start;
}
.stu-persona-avatar {
    width:120px;
    height:120px;
    border-radius:50%;
    background:var(--stu-surface-alt);
    overflow:hidden;
    border:3px solid var(--stu-accent-soft);
}
.stu-persona-avatar img { width:100%; height:100%; }
.stu-persona-name {
    font-size:18px;
    font-weight:700;
    margin-bottom:2px;
}
.stu-persona-meta {
    font-size:12px;
    color:var(--stu-text-muted);
    margin-bottom:10px;
}
.stu-persona-section {
    margin-top:8px;
}
.stu-persona-section h4 {
    font-size:10px;
    font-weight:700;
    color:var(--stu-accent);
    text-transform:uppercase;
    letter-spacing:0.06em;
    margin-bottom:3px;
}
.stu-persona-section p {
    font-size:12px;
    color:var(--stu-text);
    line-height:1.5;
}
.stu-persona-tags {
    display:flex;
    flex-wrap:wrap;
    gap:4px;
    margin-top:3px;
}
.stu-persona-tag {
    padding:2px 8px;
    background:var(--stu-accent-soft);
    color:var(--stu-accent);
    border-radius:999px;
    font-size:10px;
    font-weight:600;
}
.stu-persona-actions {
    grid-column:1/-1;
    display:flex;
    gap:8px;
    margin-top:6px;
    border-top:1px solid var(--stu-border-soft);
    padding-top:10px;
}
.studio-canvas-bg {
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center;
}
.studio-canvas .stu-el {
    position:absolute;
    overflow:hidden;
    white-space:pre-wrap;
    word-break:break-all;
}
/* バナー内のボタン/リンクはクリック不可（プレビュー専用） */
.studio-canvas iframe,
.studio-canvas iframe * {
    pointer-events:none;
}
.stu-gallery-card iframe { pointer-events:none; }

.studio-preview-footer {
    padding:12px 20px;
    border-top:1px solid var(--stu-border-soft);
    background:rgba(255,255,255,0.6);
    display:flex;
    flex-direction:column;
    gap:8px;
}
.studio-preview-footer[hidden] { display:none !important; }
.studio-variant-tabs {
    display:flex;
    gap:4px;
    flex-wrap:wrap;
}
.studio-variant-tab {
    padding:4px 10px;
    border:1px solid var(--stu-border);
    border-radius:999px;
    background:transparent;
    color:var(--stu-text-muted);
    font-size:11px;
    font-weight:600;
    cursor:pointer;
    font-family:inherit;
    transition:var(--stu-transition);
}
.studio-variant-tab:hover { border-color:var(--stu-accent); color:var(--stu-text); }
.studio-variant-tab.is-active { background:var(--stu-accent); color:#fff; border-color:var(--stu-accent); }
.studio-preview-actions { display:flex; gap:6px; }

/* ── Chat (right) ── */
.studio-chat {
    display:flex;
    flex-direction:column;
    background:var(--stu-chat-bg);
    height:100vh;
}
.studio-chat-header {
    display:flex;
    align-items:center;
    gap:10px;
    padding:14px 20px;
    border-bottom:1px solid var(--stu-border);
    background:var(--stu-surface);
}
.studio-ai-avatar {
    width:36px;
    height:36px;
    border-radius:50%;
    background:var(--stu-accent);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
}
.studio-ai-name { font-weight:700; font-size:13px; color:var(--stu-text); }
.studio-ai-sub { font-size:11px; color:var(--stu-text-muted); }

.studio-messages {
    flex:1;
    overflow-y:auto;
    padding:16px 16px 8px;
    display:flex;
    flex-direction:column;
    gap:12px;
}

/* Messages */
.stu-msg {
    max-width:92%;
    padding:10px 14px;
    border-radius:var(--stu-radius);
    line-height:1.6;
    font-size:13px;
    animation:stu-msg-in 0.2s ease;
}
@keyframes stu-msg-in { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:none} }

/* AI 発言行: アバター + バブル */
.stu-msg-row {
    display:flex;
    align-items:flex-start;
    gap:8px;
    animation:stu-msg-in 0.2s ease;
}
.stu-msg-row-ai {
    align-self:flex-start;
    max-width:95%;
}
.stu-msg-avatar {
    width:30px;
    height:30px;
    flex-shrink:0;
    border-radius:50%;
    background:var(--stu-accent);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 1px 3px rgba(92,64,51,0.15);
    margin-top:1px;
}
.stu-msg-row-ai .stu-msg {
    animation:none; /* 親 row 側でアニメート */
    flex:1;
    min-width:0;
}

.stu-msg-ai {
    background:var(--stu-msg-ai);
    color:var(--stu-text);
    align-self:flex-start;
    border-bottom-left-radius:4px;
}
.stu-msg-user {
    background:var(--stu-msg-user);
    color:#fff;
    align-self:flex-end;
    border-bottom-right-radius:4px;
}
.stu-msg-system {
    background:transparent;
    color:var(--stu-text-muted);
    font-size:11px;
    text-align:center;
    align-self:center;
    padding:4px 0;
}

/* Cards in chat */
.stu-card-grid {
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(120px,1fr));
    gap:8px;
    margin-top:8px;
}
.stu-card {
    border:2px solid var(--stu-border);
    border-radius:var(--stu-radius-sm);
    overflow:hidden;
    cursor:pointer;
    transition:var(--stu-transition);
    background:var(--stu-surface);
}
.stu-card:hover { border-color:var(--stu-accent); transform:translateY(-1px); }
.stu-card.is-selected { border-color:var(--stu-accent); box-shadow:0 0 0 2px var(--stu-accent-soft); }
.stu-card-img {
    aspect-ratio:1/1;
    background:var(--stu-surface-alt) center/cover no-repeat;
}
.stu-card-label {
    padding:6px 8px;
    font-size:11px;
    font-weight:600;
    text-align:center;
    color:var(--stu-text);
    border-top:1px solid var(--stu-border-soft);
}

/* Copy cards */
.stu-copy-card {
    border:1px solid var(--stu-border);
    border-radius:var(--stu-radius-sm);
    padding:10px 12px;
    margin-top:6px;
    cursor:pointer;
    transition:var(--stu-transition);
    background:var(--stu-surface);
}
.stu-copy-card:hover { border-color:var(--stu-accent); }
.stu-copy-card.is-selected { border-color:var(--stu-accent); background:var(--stu-accent-soft); }
.stu-copy-headline { font-size:15px; font-weight:700; margin-bottom:4px; }
.stu-copy-sub { font-size:11px; color:var(--stu-text-muted); margin-bottom:4px; }
.stu-copy-cta { display:inline-block; padding:2px 8px; background:var(--stu-accent-soft); color:var(--stu-accent); font-size:11px; font-weight:600; border-radius:999px; }

/* Typing indicator */
.stu-typing {
    display:flex;
    gap:4px;
    padding:10px 14px;
    align-self:flex-start;
}
.stu-typing-dot {
    width:7px;height:7px;border-radius:50%;
    background:var(--stu-text-muted);
    animation:stu-blink 1.2s ease infinite;
}
.stu-typing-dot:nth-child(2) { animation-delay:0.2s; }
.stu-typing-dot:nth-child(3) { animation-delay:0.4s; }
@keyframes stu-blink { 0%,80%,100%{opacity:0.3} 40%{opacity:1} }
@keyframes stu-bounce { from{transform:translateY(0)} to{transform:translateY(-6px)} }

/* Options bar */
.studio-options {
    display:flex;
    gap:6px;
    flex-wrap:wrap;
    padding:0 0 8px;
}
.studio-options[hidden] { display:none !important; }
.studio-gallery[hidden] { display:none !important; }
.studio-canvas[hidden] { display:none !important; }
.studio-empty-canvas[hidden] { display:none !important; }
.stu-option-btn {
    padding:6px 14px;
    border:1px solid var(--stu-border);
    border-radius:999px;
    background:var(--stu-surface);
    color:var(--stu-text);
    font-size:12px;
    font-weight:600;
    font-family:inherit;
    cursor:pointer;
    transition:var(--stu-transition);
}
.stu-option-btn:hover { border-color:var(--stu-accent); background:var(--stu-accent-soft); }

/* Input area */
.studio-input-area {
    padding:12px 16px;
    border-top:1px solid var(--stu-border);
    background:var(--stu-surface);
}
.studio-input-row {
    display:flex;
    gap:8px;
}
.studio-input {
    flex:1;
    height:40px;
    padding:0 14px;
    border:1px solid var(--stu-border);
    border-radius:999px;
    background:var(--stu-surface-alt);
    color:var(--stu-text);
    font-size:13px;
    font-family:inherit;
    transition:var(--stu-transition);
}
.studio-input:focus { outline:none; border-color:var(--stu-accent); box-shadow:0 0 0 3px var(--stu-accent-soft); }

/* Buttons */
.stu-btn {
    display:inline-flex;align-items:center;gap:5px;
    height:34px;padding:0 14px;
    border:1px solid transparent;border-radius:var(--stu-radius-sm);
    background:transparent;color:var(--stu-text);
    font-size:12px;font-weight:600;font-family:inherit;cursor:pointer;
    transition:var(--stu-transition);white-space:nowrap;
}
.stu-btn:disabled { opacity:0.5; cursor:not-allowed; }
.stu-btn-primary { background:var(--stu-accent); color:#fff; border-color:var(--stu-accent); }
.stu-btn-primary:hover:not(:disabled) { background:var(--stu-accent-hover); }
.stu-btn-ghost { border-color:var(--stu-border); color:var(--stu-text-muted); }
.stu-btn-ghost:hover:not(:disabled) { background:var(--stu-accent-soft); color:var(--stu-text); }
.stu-btn-sm { height:28px; padding:0 10px; font-size:11px; }
.stu-btn-icon { width:40px; height:40px; padding:0; border-radius:50%; justify-content:center; }

/* Toast */
.studio-toast-container { position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:2000;display:flex;flex-direction:column;gap:8px;pointer-events:none; }
.stu-toast { padding:10px 18px; border-radius:var(--stu-radius-sm); background:var(--stu-surface); color:var(--stu-text); font-size:13px; box-shadow:0 4px 16px rgba(0,0,0,0.12); pointer-events:auto; animation:stu-msg-in 0.2s ease; }
.stu-toast.error { border-left:3px solid var(--stu-danger); }
.stu-toast.success { border-left:3px solid var(--stu-success); }

@media(max-width:900px) {
    body.studio-page { grid-template-columns:1fr; grid-template-rows:40vh 1fr; }
}