/* 시크릿 키 생성기 — 도구 공통 디자인 언어(그라데이션 히어로 + 카드) 계승
   면·글자·선은 부트스트랩 테마 변수를 쓰고, 도구 고유색만 --tool-* 로 둔다.
   그래야 다크 모드에서 따로 덧칠할 곳이 거의 없다. */
.secg-tool {
    --tool-primary: #0284c7;
    --tool-accent:  #4f46e5;
    --tool-bg:      rgba(2, 132, 199, 0.08);
    --tool-gradient: linear-gradient(135deg, #0284c7 0%, #4f46e5 100%);
    --tool-safe:    #059669;
    --tool-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}
[data-bs-theme="dark"] .secg-tool {
    --tool-primary: #38bdf8;
    --tool-accent:  #818cf8;
    --tool-bg:      rgba(56, 189, 248, 0.12);
    --tool-safe:    #34d399;
}

/* ===== 히어로 ===== */
.secg-hero {
    background: var(--tool-gradient);
    border-radius: 16px;
    padding: 36px 32px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}
.secg-hero::before,
.secg-hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
}
.secg-hero::before {
    top: -80px; right: -80px; width: 300px; height: 300px;
    background: rgba(255, 255, 255, 0.06);
}
.secg-hero::after {
    bottom: -120px; left: -60px; width: 260px; height: 260px;
    background: rgba(255, 255, 255, 0.04);
}
.secg-hero-icon { font-size: 40px; position: relative; z-index: 1; }
.secg-hero h1 { font-size: 28px; font-weight: 800; position: relative; z-index: 1; margin: 10px 0 6px; }
.secg-hero p { opacity: 0.88; position: relative; z-index: 1; margin-bottom: 0; }

/* ===== 안전 고지 ─ 이 도구의 핵심 약속이라 눈에 띄게 둔다 ===== */
.secg-notice {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 14px 16px;
    border: 1px solid var(--bs-border-color);
    border-left: 4px solid var(--tool-safe);
    border-radius: 12px;
    background: var(--tool-bg);
    margin-bottom: 20px;
}
.secg-notice i {
    color: var(--tool-safe);
    font-size: 20px;
    line-height: 1.3;
    flex-shrink: 0;
}
.secg-notice p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--bs-body-color);
    line-height: 1.65;
}
.secg-notice strong { color: var(--bs-emphasis-color); }

/* 스크립트 없이 열렸을 때만 보이는 경고 */
.secg-nojs {
    padding: 14px 16px;
    border: 1px solid var(--bs-border-color);
    border-left: 4px solid var(--bs-warning);
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--bs-body-color);
}

/* ===== 카드 골격 ===== */
.secg-card {
    background: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 14px;
    overflow: hidden;
}
.secg-card + .secg-card { margin-top: 16px; }
.secg-card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 12px 16px;
    border-bottom: 1px solid var(--bs-border-color);
}
.secg-card-title { font-weight: 700; font-size: 14px; color: var(--bs-emphasis-color); }
.secg-card-title i { color: var(--tool-primary); }
.secg-card-body { padding: 16px; }

/* ===== 길이 선택 ===== */
.secg-len-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.secg-len {
    padding: 7px 14px;
    border-radius: 9px;
    border: 1px solid var(--bs-border-color);
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background-color 0.15s;
}
.secg-len:hover {
    border-color: var(--tool-primary);
    color: var(--tool-primary);
    background: var(--tool-bg);
}
.secg-len.active {
    border-color: var(--tool-primary);
    background: var(--tool-primary);
    color: #fff;
}
[data-bs-theme="dark"] .secg-len.active { color: #08131c; }

.secg-custom { display: flex; align-items: center; gap: 8px; }
.secg-custom label {
    font-size: 13px;
    font-weight: 600;
    color: var(--bs-secondary-color);
    margin: 0;
    white-space: nowrap;
}
.secg-custom input { width: 104px; }
.secg-tool .form-control:focus {
    border-color: var(--tool-primary);
    box-shadow: 0 0 0 3px var(--tool-bg);
}

/* ===== 액션 버튼 ===== */
.secg-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin: 18px 0;
}
.secg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    border-radius: 10px;
    border: 1px solid var(--bs-border-color);
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background-color 0.15s, transform 0.15s;
    white-space: nowrap;
}
.secg-btn:hover {
    border-color: var(--tool-primary);
    color: var(--tool-primary);
    background: var(--tool-bg);
}
.secg-btn-primary,
.secg-btn-primary:hover {
    background: var(--tool-gradient);
    border-color: transparent;
    color: #fff;
}
.secg-btn-primary:hover { transform: translateY(-1px); }

/* ===== 결과 ===== */
.secg-out { border: 1px solid var(--bs-border-color); border-radius: 12px; overflow: hidden; }
.secg-out + .secg-out { margin-top: 14px; }
.secg-out-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 9px 14px;
    background: var(--bs-tertiary-bg);
    border-bottom: 1px solid var(--bs-border-color);
}
.secg-out-name { font-weight: 700; font-size: 13.5px; color: var(--bs-emphasis-color); }
.secg-out-cmd {
    font-family: var(--tool-mono);
    font-size: 12px;
    color: var(--bs-secondary-color);
    word-break: break-all;
}
.secg-out-body { display: flex; gap: 10px; align-items: flex-start; padding: 14px; }
.secg-value {
    flex: 1;
    min-width: 0;
    font-family: var(--tool-mono);
    font-size: 0.95rem;
    line-height: 1.7;
    word-break: break-all;
    color: var(--bs-body-color);
    user-select: all;
}
.secg-copy { flex-shrink: 0; }
.secg-copied { color: var(--tool-safe) !important; border-color: var(--tool-safe) !important; }
.secg-out-meta {
    padding: 0 14px 12px;
    font-size: 12px;
    color: var(--bs-secondary-color);
}
.secg-out-meta .secg-sep { opacity: 0.45; margin: 0 6px; }
.secg-out-note {
    padding: 10px 14px;
    border-top: 1px solid var(--bs-border-color);
    background: var(--bs-tertiary-bg);
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--bs-secondary-color);
}

/* ===== 설명 카드 ===== */
.secg-support { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color); border-radius: 14px; overflow: hidden; }
.secg-support + .secg-support { margin-top: 14px; }
.secg-support .secg-support-hd {
    padding: 14px 18px;
    font-weight: 700;
    font-size: 15px;
    color: var(--bs-emphasis-color);
    border-bottom: 1px solid var(--bs-border-color);
}
.secg-support .secg-support-bd { padding: 18px; color: var(--bs-secondary-color); }
.secg-support .secg-support-bd p:last-child { margin-bottom: 0; }
.secg-subtitle { font-size: 15px; font-weight: 700; color: var(--bs-emphasis-color); margin: 18px 0 10px; }
.secg-support table { width: 100%; font-size: 0.9rem; margin-bottom: 0; }
.secg-support th, .secg-support td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--bs-border-color);
    text-align: left;
}
.secg-support th { color: var(--bs-emphasis-color); font-weight: 700; white-space: nowrap; }
.secg-support tr:last-child td { border-bottom: 0; }
.secg-support code {
    font-family: var(--tool-mono);
    font-size: 0.86rem;
    color: var(--tool-accent);
    background: var(--tool-bg);
    padding: 2px 6px;
    border-radius: 5px;
}

/* ===== 반응형 ===== */
@media (max-width: 768px) {
    .secg-hero { padding: 28px 20px; border-radius: 12px; }
    .secg-hero h1 { font-size: 22px; }
    .secg-btn { flex: 1 1 calc(50% - 8px); }
    .secg-out-body { flex-direction: column; }
    .secg-copy { align-self: flex-end; }
    .secg-support-scroll { overflow-x: auto; }
}