@charset "utf-8";

/* ============================================
   텔레그램 그리기 도구 가이드
   접두사: tg-drw- (기존 사이트 오염 방지)
   CSS 변수 접두사: --tgdr-
   컬러 톤: 일렉트릭 블루(Electric Blue) + 핫 핑크(Hot Pink)
============================================ */

:root {
    --tgdr-blue: #2563eb;
    --tgdr-blue-dark: #1d4ed8;
    --tgdr-blue-deep: #1e3a8a;
    --tgdr-blue-light: #eff6ff;
    --tgdr-blue-border: #93c5fd;
    --tgdr-pink: #ec4899;
    --tgdr-pink-dark: #db2777;
    --tgdr-pink-light: #fdf2f8;
    --tgdr-pink-border: #f9a8d4;
    --tgdr-slate-900: #0f172a;
    --tgdr-slate-700: #334155;
    --tgdr-slate-500: #64748b;
    --tgdr-slate-300: #cbd5e1;
    --tgdr-slate-200: #e2e8f0;
    --tgdr-slate-100: #f1f5f9;
    --tgdr-bg: #f8f9ff;
    --tgdr-white: #ffffff;
    --tgdr-radius: 14px;
}

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

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

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

.tg-drw-wrapper mark {
    background: linear-gradient(120deg, var(--tgdr-pink-light) 0%, #fbcfe8 100%);
    color: #9d174d;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

/* ─── 히어로 ─── */
.tg-drw-hero {
    background: linear-gradient(145deg, #1e3a8a 0%, #1d4ed8 30%, #2563eb 60%, #60a5fa 100%);
    color: var(--tgdr-white);
    padding: 60px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.tg-drw-hero::before {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    border: 60px solid rgba(236, 72, 153, 0.06);
    border-radius: 50%;
    top: -100px;
    right: -100px;
}

.tg-drw-hero::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    border: 40px solid rgba(147, 197, 253, 0.04);
    border-radius: 50%;
    bottom: -60px;
    left: -50px;
}

.tg-drw-hero__floating {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.tg-drw-hero__float-icon {
    position: absolute;
    font-size: 28px;
    opacity: 0.18;
    animation: tg-drw-float 6s ease-in-out infinite;
}

.tg-drw-hero__float-icon i {
    color: rgba(255, 255, 255, 0.9);
}

.tg-drw-hero__float-icon--1 {
    top: 14%;
    left: 8%;
    animation-delay: 0s;
}

.tg-drw-hero__float-icon--2 {
    top: 20%;
    right: 12%;
    animation-delay: 1s;
    font-size: 24px;
}

.tg-drw-hero__float-icon--3 {
    bottom: 22%;
    left: 15%;
    animation-delay: 2s;
}

.tg-drw-hero__float-icon--4 {
    bottom: 16%;
    right: 8%;
    animation-delay: 3s;
    font-size: 22px;
}

.tg-drw-hero__float-icon--5 {
    top: 55%;
    left: 4%;
    animation-delay: 4s;
    font-size: 20px;
}

.tg-drw-hero__float-icon--6 {
    top: 10%;
    right: 30%;
    animation-delay: 5s;
    font-size: 18px;
}

@keyframes tg-drw-float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-12px) rotate(8deg);
    }
}

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

.tg-drw-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(236, 72, 153, 0.2);
    color: var(--tgdr-pink-border);
    font-size: 14px;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 22px;
    border: 1px solid rgba(249, 168, 212, 0.25);
    backdrop-filter: blur(4px);
}

.tg-drw-hero__badge i {
    font-size: 16px;
}

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

.tg-drw-hero__desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    max-width: 620px;
    margin: 0 auto;
}

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

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

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

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

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

.tg-drw-section--accent {
    background: linear-gradient(135deg, var(--tgdr-blue-light) 0%, #dbeafe40 100%);
    border-color: var(--tgdr-blue-border);
}

.tg-drw-section--dark {
    background: linear-gradient(135deg, var(--tgdr-slate-900) 0%, #1e293b 100%);
    border-color: var(--tgdr-slate-700);
    color: var(--tgdr-slate-300);
}

.tg-drw-section--demo {
    background: linear-gradient(135deg, var(--tgdr-pink-light) 0%, #fce7f340 50%, #fbcfe840 100%);
    border-color: var(--tgdr-pink-border);
}

.tg-drw-section__head {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 16px;
}

.tg-drw-section__num {
    font-size: 38px;
    font-weight: 900;
    color: var(--tgdr-blue);
    opacity: 0.2;
    line-height: 1;
    flex-shrink: 0;
}

.tg-drw-section__num--accent {
    opacity: 0.25;
}

.tg-drw-section__tip-icon {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--tgdr-pink) 0%, #f472b6 100%);
    color: var(--tgdr-white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.tg-drw-section__title {
    font-size: 20px;
    font-weight: 800;
    color: var(--tgdr-slate-900);
    line-height: 1.35;
    padding-top: 6px;
}

.tg-drw-section__title--light {
    color: var(--tgdr-white);
}

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

/* ─── 도구 4종 카드 ─── */
.tg-drw-tool-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.tg-drw-tool-card {
    padding: 20px;
    border-radius: 12px;
    background-color: var(--tgdr-white);
    border: 1px solid var(--tgdr-blue-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.tg-drw-tool-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
}

.tg-drw-tool-card__icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin: 0 auto 12px;
}

.tg-drw-tool-card__icon--pen {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
}

.tg-drw-tool-card__icon--marker {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #fff;
}

.tg-drw-tool-card__icon--neon {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: #fff;
}

.tg-drw-tool-card__icon--arrow {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    color: #fff;
}

.tg-drw-tool-card__title {
    font-size: 15px;
    font-weight: 800;
    color: var(--tgdr-slate-900);
    margin-bottom: 4px;
}

.tg-drw-tool-card__desc {
    font-size: 12px;
    line-height: 1.6;
}

/* ─── 조절법 카드 ─── */
.tg-drw-adjust-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.tg-drw-adjust-card {
    padding: 24px;
    border-radius: 12px;
    background-color: var(--tgdr-white);
    border: 1px solid var(--tgdr-slate-200);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tg-drw-adjust-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}

.tg-drw-adjust-card__header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.tg-drw-adjust-card__icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--tgdr-blue) 0%, var(--tgdr-blue-dark) 100%);
    color: var(--tgdr-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.tg-drw-adjust-card__badge {
    font-size: 11px;
    font-weight: 800;
    color: var(--tgdr-white);
    background: linear-gradient(135deg, var(--tgdr-pink) 0%, var(--tgdr-pink-dark) 100%);
    padding: 3px 10px;
    border-radius: 100px;
}

.tg-drw-adjust-card__title {
    font-size: 16px;
    font-weight: 800;
    color: var(--tgdr-slate-900);
    margin-bottom: 6px;
}

.tg-drw-adjust-card__text {
    font-size: 14px;
    line-height: 1.65;
    margin-bottom: 14px;
}

.tg-drw-adjust-card__rainbow {
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(90deg, #ef4444, #f97316, #eab308, #22c55e, #3b82f6, #8b5cf6, #ec4899);
}

.tg-drw-adjust-card__sizes {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
}

.tg-drw-adjust-card__dot {
    border-radius: 50%;
    background-color: var(--tgdr-blue);
}

.tg-drw-adjust-card__dot--sm {
    width: 8px;
    height: 8px;
}

.tg-drw-adjust-card__dot--md {
    width: 16px;
    height: 16px;
}

.tg-drw-adjust-card__dot--lg {
    width: 28px;
    height: 28px;
}

/* ─── 그리기 데모 ─── */
.tg-drw-demo {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 툴바 */
.tg-drw-demo__toolbar {
    background-color: var(--tgdr-white);
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--tgdr-pink-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tg-drw-demo__tools {
    display: flex;
    gap: 6px;
}

.tg-drw-demo__tool-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 6px;
    border: 1px solid var(--tgdr-slate-200);
    border-radius: 8px;
    background-color: var(--tgdr-white);
    color: var(--tgdr-slate-500);
    font-size: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.tg-drw-demo__tool-btn i {
    font-size: 16px;
}

.tg-drw-demo__tool-btn:hover {
    border-color: var(--tgdr-blue);
    color: var(--tgdr-blue);
}

.tg-drw-demo__tool-btn--active {
    background: linear-gradient(135deg, var(--tgdr-blue) 0%, var(--tgdr-blue-dark) 100%);
    color: var(--tgdr-white);
    border-color: var(--tgdr-blue);
}

/* 색상 선택 */
.tg-drw-demo__colors {
    display: flex;
    gap: 6px;
    justify-content: center;
}

.tg-drw-demo__color-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--tgdr-slate-200);
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}

.tg-drw-demo__color-btn:hover {
    transform: scale(1.2);
}

.tg-drw-demo__color-btn--active {
    border-color: var(--tgdr-slate-900);
    box-shadow: 0 0 0 2px var(--tgdr-white), 0 0 0 4px var(--tgdr-slate-900);
}

/* 색상별 배경 - JS에서 inline으로 설정 */
.tg-drw-demo__color-btn[data-color="#ef4444"] {
    background-color: #ef4444;
}

.tg-drw-demo__color-btn[data-color="#f97316"] {
    background-color: #f97316;
}

.tg-drw-demo__color-btn[data-color="#eab308"] {
    background-color: #eab308;
}

.tg-drw-demo__color-btn[data-color="#22c55e"] {
    background-color: #22c55e;
}

.tg-drw-demo__color-btn[data-color="#3b82f6"] {
    background-color: #3b82f6;
}

.tg-drw-demo__color-btn[data-color="#8b5cf6"] {
    background-color: #8b5cf6;
}

.tg-drw-demo__color-btn[data-color="#ec4899"] {
    background-color: #ec4899;
}

.tg-drw-demo__color-btn[data-color="#ffffff"] {
    background-color: #ffffff;
}

/* 굵기 슬라이더 */
.tg-drw-demo__size-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tg-drw-demo__size-icon {
    color: var(--tgdr-blue);
}

.tg-drw-demo__size-icon--sm {
    font-size: 6px;
}

.tg-drw-demo__size-icon--lg {
    font-size: 16px;
}

.tg-drw-demo__size-slider {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, var(--tgdr-slate-200) 0%, var(--tgdr-blue-border) 100%);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.tg-drw-demo__size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--tgdr-blue) 0%, var(--tgdr-blue-dark) 100%);
    border: 2px solid var(--tgdr-white);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
    cursor: pointer;
}

.tg-drw-demo__size-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--tgdr-blue) 0%, var(--tgdr-blue-dark) 100%);
    border: 2px solid var(--tgdr-white);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
    cursor: pointer;
}

/* 캔버스 */
.tg-drw-demo__canvas-wrap {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--tgdr-pink-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    background-color: #f0f4ff;
}

.tg-drw-demo__canvas {
    display: block;
    width: 100%;
    height: auto;
    cursor: crosshair;
    touch-action: none;
}

.tg-drw-demo__canvas-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    color: var(--tgdr-slate-300);
    pointer-events: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tg-drw-demo__canvas-hint i {
    font-size: 18px;
}

/* 하단 액션 */
.tg-drw-demo__actions {
    display: flex;
    gap: 8px;
}

.tg-drw-demo__action-btn {
    flex: 1;
    padding: 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.tg-drw-demo__action-btn--undo {
    background-color: var(--tgdr-slate-100);
    color: var(--tgdr-slate-500);
    border: 1px solid var(--tgdr-slate-200);
}

.tg-drw-demo__action-btn--undo:hover {
    background-color: var(--tgdr-slate-200);
    color: var(--tgdr-slate-700);
}

.tg-drw-demo__action-btn--clear {
    background-color: var(--tgdr-pink-light);
    color: var(--tgdr-pink);
    border: 1px solid var(--tgdr-pink-border);
}

.tg-drw-demo__action-btn--clear:hover {
    background-color: #fce7f3;
    color: var(--tgdr-pink-dark);
}

/* ─── 팁 ─── */
.tg-drw-tips {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.tg-drw-tip {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(147, 197, 253, 0.12);
    padding: 22px;
    border-radius: 10px;
    position: relative;
}

.tg-drw-tip__number {
    position: absolute;
    top: -10px;
    left: 18px;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--tgdr-pink) 0%, #f472b6 100%);
    color: var(--tgdr-white);
    font-weight: 900;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.tg-drw-tip__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--tgdr-white);
    margin-bottom: 8px;
    padding-top: 6px;
}

.tg-drw-tip__title i {
    color: var(--tgdr-blue-border);
    margin-right: 4px;
}

.tg-drw-tip__text {
    font-size: 14px;
    color: var(--tgdr-slate-300);
}

.tg-drw-tip__text strong {
    color: var(--tgdr-white);
}

/* ─── 결론 ─── */
.tg-drw-summary {
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 50%, var(--tgdr-blue-dark) 100%);
    color: var(--tgdr-white);
    padding: 44px 28px;
    border-radius: var(--tgdr-radius);
    text-align: center;
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.4);
}

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

.tg-drw-summary__body p {
    font-size: 16px;
    margin-bottom: 14px;
    color: var(--tgdr-blue-border);
}

.tg-drw-summary strong {
    color: var(--tgdr-white);
}

.tg-drw-summary__highlights {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin: 24px 0;
}

.tg-drw-summary__highlight {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 16px 12px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(147, 197, 253, 0.12);
    border-radius: 10px;
}

.tg-drw-summary__highlight-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--tgdr-pink) 0%, #f472b6 100%);
    color: var(--tgdr-white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.tg-drw-summary__highlight strong {
    font-size: 13px;
    color: var(--tgdr-white);
}

.tg-drw-summary__highlight span {
    font-size: 11px;
    color: var(--tgdr-blue-border);
    text-align: center;
}

.tg-drw-summary__checklist {
    list-style: none;
    display: inline-block;
    text-align: left;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 24px 32px;
    border-radius: 12px;
    margin: 0 0 24px;
}

.tg-drw-summary__checklist li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 10px;
    font-size: 15px;
    color: #93c5fd;
}

.tg-drw-summary__checklist li:last-child {
    margin-bottom: 0;
}

.tg-drw-summary__checklist li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    font-size: 13px;
    color: var(--tgdr-pink-border);
}

.tg-drw-summary__checklist strong {
    color: var(--tgdr-white);
}

.tg-drw-summary__footer {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 14px;
    color: var(--tgdr-blue-border);
    line-height: 1.8;
}

.tg-drw-summary__footer strong {
    color: var(--tgdr-white);
}

/* ============================================
   반응형
============================================ */
@media (min-width: 768px) {
    .tg-drw-hero {
        padding: 80px 40px;
    }

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

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

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

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

    .tg-drw-section__title {
        font-size: 24px;
    }

    .tg-drw-section__num {
        font-size: 44px;
    }

    .tg-drw-tool-cards {
        grid-template-columns: repeat(4, 1fr);
    }

    .tg-drw-adjust-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .tg-drw-tips {
        grid-template-columns: repeat(3, 1fr);
    }

    .tg-drw-summary__highlights {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .tg-drw-demo__toolbar {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
    }

    .tg-drw-demo__tools {
        flex: 0 0 auto;
    }

    .tg-drw-demo__colors {
        flex: 0 0 auto;
    }

    .tg-drw-demo__size-wrap {
        flex: 1;
        min-width: 140px;
    }
}

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

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

/* ============================================
   스크롤 등장 애니메이션
============================================ */
.tg-drw-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-drw-motion.is-visible {
    opacity: 1;
    transform: translateY(0);
}