/* 
    telegram.pe.kr - safety03 [Change Phone Number Guide]
    Deep Navy & Telegram Gradient theme
    Modern Interactive Version
    Strictly scoped to #tg-s03-wrapper
*/

#tg-s03-wrapper {
    --tg-s03-bg: #0a0e1a;
    --tg-s03-bg-light: #131a2e;
    --tg-s03-bg-card: rgba(255,255,255,0.06);
    --tg-s03-glass: rgba(255,255,255,0.04);
    
    --tg-s03-primary: #2AABEE;
    --tg-s03-primary-dim: rgba(42, 171, 238, 0.12);
    --tg-s03-primary-glow: rgba(42, 171, 238, 0.25);
    
    --tg-s03-alert: #f59e0b;
    --tg-s03-alert-dim: rgba(245, 158, 11, 0.1);
    
    --tg-s03-safe: #22c55e;
    --tg-s03-safe-dim: rgba(34, 197, 94, 0.12);
    
    --tg-s03-text-main: #f1f5f9;
    --tg-s03-text-mute: #94a3b8;
    --tg-s03-border: rgba(255,255,255,0.08);
    
    --tg-s03-radius: 16px;

    background: linear-gradient(170deg, #0a0e1a 0%, #0f1629 40%, #111d35 100%);
    color: var(--tg-s03-text-main);
    font-family: 'Inter', 'Noto Sans KR', sans-serif;
    line-height: 1.7;
    border-radius: var(--tg-s03-radius);
    padding: 3rem 2.5rem;
    box-sizing: border-box;
    overflow: hidden;
    position: relative;
}

#tg-s03-wrapper * { box-sizing: border-box; }

/* 배경 글로우 장식 */
#tg-s03-wrapper::before {
    content: '';
    position: absolute;
    top: -120px; right: -120px;
    width: 350px; height: 350px;
    background: radial-gradient(circle, var(--tg-s03-primary-glow), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
#tg-s03-wrapper::after {
    content: '';
    position: absolute;
    bottom: -80px; left: -80px;
    width: 250px; height: 250px;
    background: radial-gradient(circle, rgba(245,158,11,0.1), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

/* 모든 자식 요소 z-index */
#tg-s03-wrapper > * { position: relative; z-index: 1; }

/* ───── Header ───── */
.tg-s03-header {
    text-align: center;
    margin-bottom: 3.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--tg-s03-border);
}

.tg-s03-header__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--tg-s03-primary-dim), rgba(42,171,238,0.05));
    color: var(--tg-s03-primary) !important;
    padding: 8px 18px;
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(42,171,238,0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tg-s03-header__title {
    font-size: 2.2rem;
    font-weight: 900;
    margin: 0 0 1.2rem 0;
    letter-spacing: -0.5px;
    word-break: keep-all;
    line-height: 1.3;
    color: var(--tg-s03-text-main) !important;
    background: linear-gradient(135deg, #ffffff 30%, var(--tg-s03-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tg-s03-header__desc {
    font-size: 1.1rem;
    color: var(--tg-s03-text-mute) !important;
    max-width: 640px;
    margin: 0 auto;
    word-break: keep-all;
}

/* ───── Alert Box (Glassmorphism) ───── */
.tg-s03-alert {
    background: var(--tg-s03-alert-dim);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: var(--tg-s03-radius);
    padding: 2rem 2.5rem;
    margin-bottom: 3.5rem;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    animation: tgS03Pulse 3s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.08);
}
@keyframes tgS03Pulse {
    0%, 100% { box-shadow: 0 0 25px rgba(245,158,11,0.06); }
    50%      { box-shadow: 0 0 40px rgba(245,158,11,0.15); }
}
.tg-s03-alert__icon {
    font-size: 2.2rem;
    color: var(--tg-s03-alert) !important;
    flex-shrink: 0;
    animation: tgS03Shake 4s ease-in-out infinite;
}
@keyframes tgS03Shake {
    0%,100% { transform: rotate(0); }
    10%     { transform: rotate(-8deg); }
    20%     { transform: rotate(8deg); }
    30%     { transform: rotate(-5deg); }
    40%     { transform: rotate(0); }
}
.tg-s03-alert__text {
    flex-grow: 1;
    text-align: left !important;
}
.tg-s03-alert__title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--tg-s03-alert) !important;
    margin: 0 0 0.5rem 0;
    text-align: left !important;
}
.tg-s03-alert__desc {
    font-size: 1.05rem;
    color: var(--tg-s03-text-mute) !important;
    margin: 0;
    line-height: 1.6;
    text-align: left !important;
}
.tg-s03-alert__desc strong {
    color: var(--tg-s03-text-main) !important;
}

/* ───── Section Title ───── */
.tg-s03-section-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 0 2rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--tg-s03-text-main) !important;
}
.tg-s03-section-title .material-symbols-outlined {
    color: var(--tg-s03-primary) !important;
    font-size: 2rem;
}

/* ───── Accordion Device Cards ───── */
.tg-s03-accordion {
    margin-bottom: 1rem;
    border-radius: var(--tg-s03-radius);
    overflow: hidden;
    border: 1px solid var(--tg-s03-border);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.tg-s03-accordion:hover {
    border-color: rgba(42,171,238,0.3);
    box-shadow: 0 4px 25px rgba(0,0,0,0.15);
}
.tg-s03-accordion--open {
    border-color: var(--tg-s03-primary) !important;
    box-shadow: 0 0 30px var(--tg-s03-primary-dim);
}

/* Accordion Trigger */
.tg-s03-accordion__trigger {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 1.5rem 2rem;
    background: var(--tg-s03-glass);
    border: none;
    outline: none;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: background 0.2s ease;
}
.tg-s03-accordion__trigger:hover {
    background: rgba(255,255,255,0.07);
}

.tg-s03-accordion__icon-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 48px; height: 48px;
    border-radius: 14px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}
.tg-s03-accordion__trigger:hover .tg-s03-accordion__icon-wrap {
    transform: scale(1.08);
}
.tg-s03-accordion__icon-wrap .material-symbols-outlined { font-size: 26px; }

.tg-s03-accordion__info {
    flex-grow: 1;
}
.tg-s03-accordion__title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--tg-s03-text-main) !important;
    margin: 0 0 2px 0;
}
.tg-s03-accordion__subtitle {
    font-size: 0.9rem;
    color: var(--tg-s03-text-mute) !important;
    margin: 0;
}

.tg-s03-accordion__chevron {
    color: var(--tg-s03-text-mute);
    transition: transform 0.35s ease;
    flex-shrink: 0;
}
.tg-s03-accordion--open .tg-s03-accordion__chevron {
    transform: rotate(180deg);
    color: var(--tg-s03-primary);
}

/* Accordion Body */
.tg-s03-accordion__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
    background: var(--tg-s03-bg-light);
    padding: 0 2rem;
}
.tg-s03-accordion--open .tg-s03-accordion__body {
    max-height: 800px;
    padding: 1.5rem 2rem 2rem;
}

/* Step Timeline */
.tg-s03-timeline {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
}
.tg-s03-timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(to bottom, var(--tg-s03-primary), var(--tg-s03-safe));
    border-radius: 2px;
}
.tg-s03-timeline__item {
    display: flex;
    gap: 18px;
    margin-bottom: 1.5rem;
    align-items: flex-start;
    position: relative;
}
.tg-s03-timeline__item:last-child { margin-bottom: 0; }

.tg-s03-timeline__dot {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--tg-s03-bg);
    border: 2px solid var(--tg-s03-primary);
    color: var(--tg-s03-primary);
    font-size: 0.85rem;
    font-weight: 800;
    flex-shrink: 0;
    z-index: 1;
    transition: all 0.25s ease;
}
.tg-s03-timeline__item:last-child .tg-s03-timeline__dot {
    border-color: var(--tg-s03-safe);
    color: var(--tg-s03-safe);
    background: var(--tg-s03-safe-dim);
}
.tg-s03-timeline__desc {
    font-size: 1.05rem;
    color: var(--tg-s03-text-main) !important;
    margin: 4px 0 0;
    line-height: 1.5;
    word-break: keep-all;
    text-align: left !important;
}
.tg-s03-timeline__desc strong {
    color: var(--tg-s03-primary);
}
.tg-s03-timeline__item:last-child .tg-s03-timeline__desc strong {
    color: var(--tg-s03-safe);
}

/* ───── Tip Section (Glassmorphism) ───── */
.tg-s03-tip {
    background: linear-gradient(135deg, rgba(42,171,238,0.08), rgba(42,171,238,0.02));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--tg-s03-radius);
    padding: 2.5rem;
    margin-top: 3.5rem;
    border: 1px solid rgba(42,171,238,0.2);
    text-align: left !important;
}
.tg-s03-tip__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.5rem;
}
.tg-s03-tip__header .material-symbols-outlined {
    font-size: 2rem;
    color: var(--tg-s03-primary) !important;
}
.tg-s03-tip__title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--tg-s03-text-main) !important;
    margin: 0;
    text-align: left !important;
}
.tg-s03-tip__desc {
    font-size: 1.05rem;
    color: var(--tg-s03-text-mute) !important;
    margin: 0 0 1.2rem 0;
    line-height: 1.6;
    text-align: left !important;
}
.tg-s03-tip__ul {
    margin: 0;
    padding-left: 1.2rem;
    font-size: 1rem;
    color: var(--tg-s03-text-mute) !important;
}
.tg-s03-tip__ul li {
    margin-bottom: 8px;
    text-align: left !important;
    line-height: 1.6;
}
.tg-s03-tip__ul strong {
    color: var(--tg-s03-primary) !important;
}

/* ───── Responsive ───── */
@media (max-width: 768px) {
    #tg-s03-wrapper { padding: 2rem 1.5rem; }
    .tg-s03-header__title { font-size: 1.7rem; }
    .tg-s03-alert { flex-direction: column; gap: 1rem; padding: 1.5rem; }
    .tg-s03-accordion__trigger { padding: 1.2rem 1.5rem; }
    .tg-s03-accordion__body { padding: 0 1.5rem; }
    .tg-s03-accordion--open .tg-s03-accordion__body { padding: 1.2rem 1.5rem 1.5rem; }
    .tg-s03-tip { padding: 1.5rem; }
}