/* ── 기본 리셋 ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
:root {
    --primary:    #4f46e5;
    --primary-dk: #3730a3;
    --primary-lt: #eef2ff;
    --text:       #1e293b;
    --text-sm:    #64748b;
    --border:     #e2e8f0;
    --bg:         #f8fafc;
    --white:      #ffffff;
    --danger:     #ef4444;
    --success:    #22c55e;
    --warning:    #f59e0b;
    --nav-h:      58px;
}
html, body { margin: 0; padding: 0; font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; font-size: 14px; color: var(--text); background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── 상단 네비게이션 ────────────────────────────────────────── */
.app-nav {
    position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
    background: var(--white); border-bottom: 1px solid var(--border);
    display: flex; align-items: center; padding: 0 24px; gap: 16px; z-index: 100;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.app-nav-logo { font-size: 16px; font-weight: 800; color: var(--primary); letter-spacing: -.3px; }
.app-nav-logo span { color: var(--text); }
.app-nav-spacer { flex: 1; }
.app-nav-user { font-size: 13px; color: var(--text-sm); display: flex; align-items: center; gap: 12px; }
.app-nav-user a { color: var(--text-sm); font-size: 13px; }
.app-nav-user a:hover { color: var(--primary); text-decoration: none; }

/* ── 앱 레이아웃 (사이드바 + 콘텐츠) ─────────────────────────── */
.app-layout { display: flex; min-height: 100vh; padding-top: var(--nav-h); }
.app-sidebar {
    width: 220px; flex-shrink: 0; background: var(--white);
    border-right: 1px solid var(--border); padding: 20px 0;
    position: fixed; top: var(--nav-h); bottom: 0; overflow-y: auto;
}
.app-sidebar-menu { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; }
.app-sidebar-item {
    display: flex; align-items: center; gap: 8px; padding: 8px 12px;
    border-radius: 8px; font-size: 13px; font-weight: 500; color: var(--text-sm);
    cursor: pointer; transition: background .1s, color .1s;
}
.app-sidebar-item:hover { background: var(--primary-lt); color: var(--primary); text-decoration: none; }
.app-sidebar-item.active { background: var(--primary-lt); color: var(--primary); font-weight: 700; }
.app-sidebar-item i { font-size: 15px; }
.app-sidebar-label { font-size: 10px; font-weight: 700; color: #b0b8c1; letter-spacing: .5px; padding: 12px 12px 4px; text-transform: uppercase; }
.app-content { flex: 1; margin-left: 220px; padding: 32px 36px; }

/* ── 인증 페이지 ─────────────────────────────────────────────── */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); padding: 20px; }
.auth-card { background: var(--white); border-radius: 16px; border: 1px solid var(--border); padding: 40px 36px; width: 100%; max-width: 420px; box-shadow: 0 4px 24px rgba(0,0,0,.07); }
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo-text { font-size: 20px; font-weight: 800; color: var(--primary); }
.auth-title { font-size: 18px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.auth-sub { font-size: 13px; color: var(--text-sm); margin-bottom: 24px; }

/* ── 폼 ──────────────────────────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-label { display: block; font-size: 12px; font-weight: 700; color: var(--text-sm); margin-bottom: 5px; }
.form-control {
    width: 100%; padding: 9px 12px; border: 1.5px solid var(--border);
    border-radius: 8px; font-size: 13px; font-family: inherit; color: var(--text);
    outline: none; transition: border-color .15s; background: var(--white);
}
.form-control:focus { border-color: var(--primary); }
.form-control.error { border-color: var(--danger); }
textarea.form-control { resize: vertical; min-height: 90px; }

/* ── 버튼 ────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 9px 18px; border-radius: 8px; border: none; font-size: 13px;
    font-weight: 700; cursor: pointer; font-family: inherit; transition: opacity .12s, transform .1s;
    white-space: nowrap;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { opacity: .88; text-decoration: none; color: #fff; }
.btn-secondary { background: var(--bg); color: var(--text-sm); border: 1.5px solid var(--border); }
.btn-secondary:hover { background: #eef2ff; text-decoration: none; color: var(--text); }
.btn-danger { background: #fee2e2; color: #b91c1c; }
.btn-danger:hover { background: #fecaca; text-decoration: none; color: #b91c1c; }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon { padding: 7px 9px; }

/* ── 알림/에러 ───────────────────────────────────────────────── */
.alert { padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 16px; }
.alert-error { background: #fee2e2; color: #b91c1c; border: 1px solid #fca5a5; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }

/* ── 배지 ────────────────────────────────────────────────────── */
.badge { font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: 99px; white-space: nowrap; }
.badge-draft    { background: #f1f5f9; color: #64748b; }
.badge-active   { background: #dcfce7; color: #166534; }
.badge-closed   { background: #fef3c7; color: #92400e; }

/* ── 대시보드 카드 ───────────────────────────────────────────── */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.page-title { font-size: 20px; font-weight: 800; color: var(--text); }
.survey-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.survey-card {
    background: var(--white); border-radius: 12px; border: 1.5px solid var(--border);
    padding: 20px; transition: border-color .15s, box-shadow .15s; cursor: pointer;
}
.survey-card:hover { border-color: #a5b4fc; box-shadow: 0 4px 16px rgba(79,70,229,.1); }
.survey-card-title { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.survey-card-meta { font-size: 11px; color: var(--text-sm); display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.survey-card-actions { display: flex; gap: 6px; }
.survey-empty { text-align: center; padding: 80px 20px; color: var(--text-sm); }
.survey-empty i { font-size: 40px; display: block; margin-bottom: 12px; color: #cbd5e1; }
.survey-empty p { font-size: 14px; margin: 0 0 16px; }

/* ── 서베이 편집기 ───────────────────────────────────────────── */
.editor-wrap { max-width: 760px; }
.question-card {
    background: var(--white); border-radius: 12px; border: 1.5px solid var(--border);
    padding: 18px 20px; margin-bottom: 12px; position: relative;
}
.question-card:hover { border-color: #a5b4fc; }
.question-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.question-num { font-size: 11px; font-weight: 700; color: var(--primary); background: var(--primary-lt); padding: 2px 8px; border-radius: 99px; }
.question-type-badge { font-size: 10px; color: var(--text-sm); }
.choice-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.choice-row input[type=text] { flex: 1; }
.choice-dot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid #cbd5e1; flex-shrink: 0; }
.choice-sq { width: 14px; height: 14px; border-radius: 3px; border: 2px solid #cbd5e1; flex-shrink: 0; }
.add-choice-btn { font-size: 12px; color: var(--primary); cursor: pointer; border: none; background: none; padding: 4px 0; font-family: inherit; }
.add-choice-btn:hover { text-decoration: underline; }
.q-delete-btn { position: absolute; top: 12px; right: 14px; background: none; border: none; color: #cbd5e1; cursor: pointer; font-size: 16px; padding: 2px; }
.q-delete-btn:hover { color: var(--danger); }

/* ── 공개 서베이 페이지 ──────────────────────────────────────── */
.survey-page { min-height: 100vh; background: var(--bg); padding: 40px 20px; }
.survey-container { max-width: 640px; margin: 0 auto; }
.survey-header { text-align: center; margin-bottom: 32px; }
.survey-header-title { font-size: 24px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.survey-header-desc { font-size: 14px; color: var(--text-sm); line-height: 1.7; }
.survey-q-card { background: var(--white); border-radius: 12px; border: 1px solid var(--border); padding: 20px 24px; margin-bottom: 14px; }
.survey-q-text { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 14px; line-height: 1.6; }
.survey-q-text .req { color: var(--danger); margin-left: 3px; }
.survey-choice { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; cursor: pointer; transition: background .1s; }
.survey-choice:hover { background: var(--primary-lt); }
.survey-choice input { accent-color: var(--primary); width: 15px; height: 15px; cursor: pointer; }
.survey-choice-label { font-size: 14px; color: var(--text); cursor: pointer; }
.survey-footer { text-align: center; margin-top: 24px; }
.survey-brand { font-size: 11px; color: #b0b8c1; margin-top: 24px; text-align: center; }

/* ── 결과 차트 ────────────────────────────────────────────────── */
.result-card { background: var(--white); border-radius: 12px; border: 1px solid var(--border); padding: 20px 24px; margin-bottom: 16px; }
.result-q-text { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 14px; }
.result-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.result-bar-label { width: 160px; font-size: 12px; color: var(--text-sm); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex-shrink: 0; }
.result-bar-wrap { flex: 1; height: 20px; background: #f1f5f9; border-radius: 99px; overflow: hidden; }
.result-bar-fill { height: 100%; background: var(--primary); border-radius: 99px; transition: width .4s ease; }
.result-bar-count { font-size: 11px; color: var(--text-sm); width: 40px; text-align: right; flex-shrink: 0; }
.result-text-answer { font-size: 13px; color: var(--text-sm); background: var(--bg); padding: 8px 12px; border-radius: 6px; margin-bottom: 6px; line-height: 1.6; }
.result-total { font-size: 11px; color: var(--text-sm); margin-top: 10px; }

/* ── 반응형 ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .app-sidebar { display: none; }
    .app-content { margin-left: 0; padding: 20px 16px; }
    .survey-grid { grid-template-columns: 1fr; }
    .auth-card { padding: 28px 20px; }
}