/* 
    telegram.pe.kr - safety02 [Phone Number Privacy]
    Deep Slate & Safe Emerald theme
    Strictly scoped to #tg-s02-wrapper
*/

#tg-s02-wrapper {
    --tg-s02-bg: #0f172a;           /* Slate 900 */
    --tg-s02-bg-light: #1e293b;     /* Slate 800 */
    --tg-s02-bg-card: #334155;      /* Slate 700 */
    
    --tg-s02-primary: #3b82f6;      /* Blue 500 */
    --tg-s02-primary-dim: rgba(59, 130, 246, 0.15);
    
    --tg-s02-safe: #10b981;         /* Emerald 500 */
    --tg-s02-safe-dim: rgba(16, 185, 129, 0.15);
    
    --tg-s02-text-main: #f8fafc;
    --tg-s02-text-mute: #cbd5e1;
    --tg-s02-text-desc: #94a3b8;
    
    background-color: var(--tg-s02-bg);
    color: var(--tg-s02-text-main);
    font-family: 'Inter', 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-sizing: border-box;
    overflow: hidden;
}

#tg-s02-wrapper * { box-sizing: border-box; }

/* Header */
.tg-s02-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--tg-s02-bg-card);
}

.tg-s02-header__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--tg-s02-safe-dim);
    color: var(--tg-s02-safe) !important;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
}

.tg-s02-header__title {
    font-size: 2rem;
    font-weight: 900;
    margin: 0 0 1rem 0;
    letter-spacing: -0.5px;
    word-break: keep-all;
    line-height: 1.3;
    color: var(--tg-s02-text-main) !important;
}

.tg-s02-header__desc {
    font-size: 1.1rem;
    color: var(--tg-s02-text-mute) !important;
    max-width: 640px;
    margin: 0 auto;
    word-break: keep-all;
}

/* Base Principle Callout */
.tg-s02-principle {
    background: linear-gradient(135deg, var(--tg-s02-bg-light), var(--tg-s02-bg));
    border: 1px solid var(--tg-s02-bg-card);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}
.tg-s02-principle::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 5px; height: 100%;
    background-color: var(--tg-s02-primary);
}
.tg-s02-principle__icon {
    font-size: 2.5rem;
    color: var(--tg-s02-primary);
    flex-shrink: 0;
}
.tg-s02-principle__text {
    flex-grow: 1;
}
.tg-s02-principle__title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--tg-s02-text-main) !important;
    margin: 0 0 0.5rem 0;
}
.tg-s02-principle__desc {
    font-size: 1.05rem;
    color: var(--tg-s02-text-mute) !important;
    margin: 0;
    line-height: 1.5;
}

/* Section Title */
.tg-s02-section-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 3.5rem 0 2rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--tg-s02-text-main) !important;
}
.tg-s02-section-title .material-symbols-outlined {
    color: var(--tg-s02-primary) !important;
    font-size: 2rem;
}

/* Device Flow Layout (Step-by-step) */
.tg-s02-device {
    background-color: var(--tg-s02-bg-light);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--tg-s02-bg-card);
    transition: transform 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}
.tg-s02-device.tg-s02-animate {
    opacity: 1;
    transform: translateY(0);
}
.tg-s02-device:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.tg-s02-device__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed var(--tg-s02-bg-card);
}
.tg-s02-device__icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 48px; height: 48px;
    border-radius: 12px;
    background-color: var(--tg-s02-primary-dim);
    color: var(--tg-s02-primary);
}
.tg-s02-device__icon .material-symbols-outlined { font-size: 26px; }
.tg-s02-device__text-wrap {
    text-align: left !important;
}
.tg-s02-device__title {
    font-size: 1.3rem;
    font-weight: 800;
    text-align: left !important;
    color: var(--tg-s02-text-main) !important;
    margin: 0;
}
.tg-s02-device__subtitle {
    font-size: 0.95rem;
    text-align: left !important;
    color: var(--tg-s02-text-desc) !important;
    margin: 4px 0 0 0;
}

/* Horizontal Steps Wrapper */
.tg-s02-steps {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 1.5rem;
    padding-bottom: 1rem;
    scrollbar-width: thin;
}
.tg-s02-steps::-webkit-scrollbar { height: 6px; }
.tg-s02-steps::-webkit-scrollbar-thumb { background: var(--tg-s02-bg-card); border-radius: 4px; }

.tg-s02-step {
    flex: 0 0 auto;
    width: 160px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    background: var(--tg-s02-bg);
    padding: 1.5rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--tg-s02-bg-card);
}
/* Arrow pointing next */
.tg-s02-step:not(:first-child)::before {
    content: '➔';
    position: absolute;
    top: 50%;
    left: -18px;
    transform: translateY(-50%);
    color: var(--tg-s02-text-desc);
    font-size: 1.2rem;
}

.tg-s02-step__num {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 32px; height: 32px;
    border-radius: 50%;
    background-color: var(--tg-s02-bg-card);
    color: var(--tg-s02-text-main);
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: all 0.2s;
}
.tg-s02-step:hover .tg-s02-step__num {
    background-color: var(--tg-s02-primary);
    box-shadow: 0 0 10px var(--tg-s02-primary-dim);
}
.tg-s02-step__text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--tg-s02-text-main) !important;
    word-break: keep-all;
}
.tg-s02-step__highlight {
    color: var(--tg-s02-safe);
    font-weight: 800;
}

/* Pro Tips Section */
.tg-s02-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tg-s02-tip {
    background: var(--tg-s02-bg-light);
    border-radius: 12px;
    padding: 1.5rem;
    border-top: 4px solid var(--tg-s02-safe);
    text-align: left !important;
}
.tg-s02-tip__icon {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--tg-s02-safe) !important;
    margin-bottom: 1rem;
}
.tg-s02-tip__icon .material-symbols-outlined { font-size: 1.4rem; }
.tg-s02-tip__title {
    font-size: 1.1rem;
    font-weight: 700;
    text-align: left !important;
    color: var(--tg-s02-text-main) !important;
    margin: 0 0 0.5rem 0;
}
.tg-s02-tip__desc {
    font-size: 1rem;
    color: var(--tg-s02-text-mute) !important;
    text-align: left !important;
    margin: 0;
    line-height: 1.6;
}

/* Footer Suggestion */
.tg-s02-footer {
    text-align: center;
    margin-top: 4rem;
    padding: 2.5rem;
    background-color: var(--tg-s02-primary-dim);
    border-radius: 12px;
}
.tg-s02-footer p {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--tg-s02-primary) !important;
}

/* Responsive Focus */
@media (max-width: 768px) {
    #tg-s02-wrapper { padding: 1.5rem; }
    .tg-s02-header__title { font-size: 1.6rem; }
    .tg-s02-principle { flex-direction: column; gap: 1rem; }
    .tg-s02-device { padding: 1.5rem; }
    .tg-s02-step {
        width: auto; flex: 1; min-width: 130px;
    }
}

@media (max-width: 480px) {
    .tg-s02-step {
        width: 100%; min-width: 100%;
        margin-bottom: 1rem;
    }
    .tg-s02-steps {
        flex-direction: column;
    }
    .tg-s02-step:not(:first-child)::before {
        content: '⬇';
        top: -24px; left: 50%;
        transform: translateX(-50%);
    }
}