@charset "utf-8";

/* ============================================
   텔레그램 폴더 아이콘/정렬 가이드
   접두사: tg-icon- (기존 사이트 오염 방지)
   컬러 톤: 앰버(Amber) + 슬레이트(Slate) 조합
============================================ */

:root {
    --tgi-amber: #f59e0b;
    --tgi-amber-dark: #d97706;
    --tgi-amber-light: #fef3c7;
    --tgi-slate-900: #0f172a;
    --tgi-slate-700: #334155;
    --tgi-slate-500: #64748b;
    --tgi-slate-200: #e2e8f0;
    --tgi-slate-100: #f1f5f9;
    --tgi-bg: #fafbfc;
    --tgi-white: #ffffff;
    --tgi-radius: 14px;
}

/* 래퍼 */
.tg-icon-wrapper {
    max-width: 1100px;
    margin: 0 auto;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    color: var(--tgi-slate-500);
    background-color: var(--tgi-bg);
    box-sizing: border-box;
    line-height: 1.7;
    overflow: hidden;
    padding-bottom: 60px;
}

.tg-icon-wrapper *,
.tg-icon-wrapper *::before,
.tg-icon-wrapper *::after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
}

.tg-icon-wrapper strong {
    font-weight: 700;
    color: var(--tgi-slate-900);
}

.tg-icon-wrapper mark {
    background: linear-gradient(120deg, var(--tgi-amber-light) 0%, #fde68a 100%);
    color: #92400e;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

/* ─── 히어로 ─── */
.tg-icon-hero {
    background: linear-gradient(145deg, var(--tgi-slate-900) 0%, var(--tgi-slate-700) 100%);
    color: var(--tgi-white);
    padding: 60px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* 장식 (앰버 빛줄기) */
.tg-icon-hero::before {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, transparent 70%);
    top: -120px;
    right: -100px;
    border-radius: 50%;
}

.tg-icon-hero__inner {
    position: relative;
    z-index: 1;
}

.tg-icon-hero__badge {
    display: inline-block;
    background-color: var(--tgi-amber);
    color: var(--tgi-slate-900);
    font-size: 13px;
    font-weight: 800;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.tg-icon-hero__title {
    font-size: 28px;
    font-weight: 900;
    line-height: 1.35;
    margin-bottom: 18px;
    color: var(--tgi-white);
}

.tg-icon-hero__desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    margin: 0 auto;
}

/* ─── 메인 ─── */
.tg-icon-main {
    padding: 30px 20px 0;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* ─── 도입부 ─── */
.tg-icon-intro {
    background-color: var(--tgi-white);
    padding: 28px 24px;
    border-radius: var(--tgi-radius);
    border-left: 4px solid var(--tgi-amber);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
}

.tg-icon-intro p {
    font-size: 16px;
    margin-bottom: 14px;
}

.tg-icon-intro p:last-child {
    margin-bottom: 0;
}

/* ─── 섹션 공통 ─── */
.tg-icon-section {
    background-color: var(--tgi-white);
    padding: 34px 24px;
    border-radius: var(--tgi-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--tgi-slate-200);
}

.tg-icon-section__head {
    margin-bottom: 16px;
}

.tg-icon-section__label {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--tgi-amber-dark);
    background-color: var(--tgi-amber-light);
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.tg-icon-section__title {
    font-size: 22px;
    font-weight: 800;
    color: var(--tgi-slate-900);
    line-height: 1.3;
}

.tg-icon-section__desc {
    font-size: 16px;
    margin-bottom: 24px;
}

/* ─── PART 1: 아이콘 변경 스텝 ─── */
.tg-icon-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tg-icon-step {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background-color: var(--tgi-slate-100);
    padding: 16px 18px;
    border-radius: 10px;
    transition: background-color 0.2s ease;
}

.tg-icon-step:hover {
    background-color: #eef2f7;
}

.tg-icon-step__badge {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--tgi-amber) 0%, var(--tgi-amber-dark) 100%);
    color: var(--tgi-white);
    font-weight: 800;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.tg-icon-step__text {
    font-size: 15px;
    padding-top: 4px;
}

/* ─── PART 2: 드래그 앤 드롭 스텝 ─── */
.tg-icon-drag {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.tg-icon-drag__step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background-color: var(--tgi-slate-100);
    padding: 16px 18px;
    border-radius: 10px;
    border: 1px solid var(--tgi-slate-200);
}

.tg-icon-drag__num {
    font-size: 20px;
    font-weight: 700;
    color: var(--tgi-amber-dark);
    flex-shrink: 0;
    line-height: 1.4;
}

.tg-icon-drag__text {
    font-size: 15px;
    padding-top: 2px;
}

/* ─── 꿀팁 영역 ─── */
.tg-icon-tips {
    margin-top: 8px;
}

.tg-icon-tips__title {
    font-size: 22px;
    font-weight: 800;
    color: var(--tgi-slate-900);
    text-align: center;
    margin-bottom: 20px;
}

.tg-icon-tip-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tg-icon-tip-card {
    background-color: var(--tgi-white);
    padding: 24px;
    border-radius: var(--tgi-radius);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--tgi-slate-200);
    border-top: 4px solid var(--tgi-amber);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.tg-icon-tip-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.12);
}

.tg-icon-tip-card__icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.tg-icon-tip-card__heading {
    font-size: 18px;
    font-weight: 800;
    color: var(--tgi-slate-900);
    margin-bottom: 10px;
}

.tg-icon-tip-card__text {
    font-size: 15px;
}

/* 단축키 키보드 표시 영역 */
.tg-icon-tip-card__kbd-row {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 16px;
    margin-bottom: 10px;
}

.tg-icon-kbd {
    display: inline-block;
    padding: 5px 12px;
    font-size: 14px;
    font-weight: 700;
    font-family: 'Pretendard', monospace;
    color: var(--tgi-slate-900);
    background-color: var(--tgi-white);
    border: 1px solid #d1d5db;
    border-bottom: 3px solid #b0b5be;
    border-radius: 6px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

.tg-icon-kbd--sm {
    padding: 2px 8px;
    font-size: 12px;
}

.tg-icon-kbd-plus {
    font-weight: 700;
    color: var(--tgi-slate-500);
}

.tg-icon-kbd-dots {
    font-weight: 700;
    color: var(--tgi-slate-500);
}

.tg-icon-tip-card__note {
    font-size: 14px;
    color: var(--tgi-slate-500);
}

/* ─── 결론 ─── */
.tg-icon-summary {
    background: linear-gradient(135deg, var(--tgi-slate-900) 0%, var(--tgi-slate-700) 100%);
    color: var(--tgi-white);
    padding: 44px 28px;
    border-radius: var(--tgi-radius);
    text-align: center;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.25);
}

.tg-icon-summary__title {
    font-size: 24px;
    font-weight: 800;
    color: var(--tgi-white);
    margin-bottom: 20px;
}

.tg-icon-summary__body p {
    font-size: 16px;
    margin-bottom: 14px;
    color: #cbd5e1;
}

.tg-icon-summary__body p:last-child {
    margin-bottom: 0;
}

/* 결론 내 strong 가시성 보장 */
.tg-icon-summary strong,
.tg-icon-summary__body strong {
    color: var(--tgi-amber);
}

.tg-icon-summary__footer {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.8;
}

.tg-icon-summary__footer strong {
    color: var(--tgi-white);
}

/* ============================================
   반응형 미디어 쿼리 (모바일 퍼스트)
============================================ */
@media (min-width: 768px) {
    .tg-icon-hero {
        padding: 80px 40px;
    }

    .tg-icon-hero__title {
        font-size: 38px;
    }

    .tg-icon-main {
        padding: 40px 36px 0;
        gap: 40px;
    }

    .tg-icon-intro {
        padding: 36px 32px;
    }

    .tg-icon-section {
        padding: 40px 36px;
    }

    .tg-icon-section__title {
        font-size: 26px;
    }

    /* 드래그 스텝 2열 그리드 */
    .tg-icon-drag {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 팁 카드 2열 그리드 */
    .tg-icon-tip-cards {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }

    .tg-icon-tip-card--wide {
        grid-column: 1 / -1;
    }

    .tg-icon-summary {
        padding: 56px 44px;
    }
}

@media (min-width: 1024px) {
    .tg-icon-hero__title {
        font-size: 44px;
    }

    .tg-icon-main {
        gap: 46px;
    }
}

/* ============================================
   스크롤 등장 애니메이션 (JS 연동)
============================================ */
.tg-icon-motion {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.tg-icon-motion.is-visible {
    opacity: 1;
    transform: translateY(0);
}