/* ===== Page Layout ===== */
.page-layout {
    display: flex; justify-content: center; align-items: flex-start;
    gap: 24px; width: 100%; max-width: 1360px;
    padding: 28px 16px 40px;
}

/* ===== Ad Panel ===== */
.ad-panel {
    width: 180px; flex-shrink: 0; position: sticky; top: 80px;
    display: flex; flex-direction: column; gap: 16px;
    animation: fadeUp .6s ease .1s backwards;
}
.ad-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden;
    transition: border-color .25s, background .4s; position: relative;
}
.ad-card:hover { border-color: #3a3a55; }
.ad-label {
    display: flex; align-items: center; justify-content: space-between;
    padding: 6px 10px; background: var(--surface-2);
    border-bottom: 1px solid var(--border);
    font-size: 8px; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: .15em;
    transition: background .4s;
}
.ad-body {
    padding: 14px 12px; display: flex; flex-direction: column;
    align-items: center; gap: 10px;
}
.ad-icon {
    width: 52px; height: 52px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-family: 'Syne', sans-serif; font-weight: 800;
}
.ad-title {
    font-family: 'Syne', sans-serif; font-weight: 700;
    font-size: 12px; text-align: center; line-height: 1.35;
    color: var(--text); text-shadow: var(--t-shadow);
}
.ad-desc { font-size: 10px; color: var(--text-muted); text-align: center; line-height: 1.55; }
.ad-cta {
    display: inline-block; margin-top: 2px; padding: 6px 14px;
    border-radius: 6px; font-size: 9px; font-weight: 500;
    text-transform: uppercase; letter-spacing: .1em;
    cursor: pointer; border: 1px solid;
    transition: all .2s; text-decoration: none; color: var(--text);
}
.ad-cta:hover { transform: translateY(-1px); }
.ad-green .ad-icon  { background: rgba(107,203,119,.12); color: #6bcb77; }
.ad-green .ad-card  { border-color: rgba(107,203,119,.15); }
.ad-green .ad-card:hover { border-color: rgba(107,203,119,.35); }
.ad-green .ad-cta   { background: rgba(107,203,119,.1); border-color: rgba(107,203,119,.3); }
.ad-blue .ad-icon   { background: rgba(77,150,255,.12); color: #4d96ff; }
.ad-blue .ad-card   { border-color: rgba(77,150,255,.15); }
.ad-blue .ad-card:hover { border-color: rgba(77,150,255,.35); }
.ad-blue .ad-cta    { background: rgba(77,150,255,.1); border-color: rgba(77,150,255,.3); }
.ad-purple .ad-icon { background: rgba(165,94,234,.12); color: #a55eea; }
.ad-purple .ad-card { border-color: rgba(165,94,234,.15); }
.ad-purple .ad-card:hover { border-color: rgba(165,94,234,.35); }
.ad-purple .ad-cta  { background: rgba(165,94,234,.1); border-color: rgba(165,94,234,.3); }
.ad-orange .ad-icon { background: rgba(255,159,67,.12); color: #ff9f43; }
.ad-orange .ad-card { border-color: rgba(255,159,67,.15); }
.ad-orange .ad-card:hover { border-color: rgba(255,159,67,.35); }
.ad-orange .ad-cta  { background: rgba(255,159,67,.1); border-color: rgba(255,159,67,.3); }
.ad-shimmer {
    position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent 30%, rgba(255,255,255,.02) 50%, transparent 70%);
    background-size: 200% 100%; animation: shimmer 4s ease-in-out infinite;
    pointer-events: none;
}
:root.light .ad-shimmer {
    background: linear-gradient(90deg, transparent 30%, rgba(255,255,255,.5) 50%, transparent 70%);
    background-size: 200% 100%;
}

/* ===== Tips Card ===== */
.tips-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; padding: 14px;
    transition: border-color .25s, background .4s;
}
.tips-card:hover { border-color: #3a3a55; }
.tips-header {
    font-family: 'Syne', sans-serif; font-weight: 700;
    font-size: 11px; color: var(--text-muted);
    margin-bottom: 10px; text-transform: uppercase;
    letter-spacing: .1em; display: flex; align-items: center; gap: 5px;
}
.tips-header .dot { width: 5px; height: 5px; border-radius: 50%; background: #6bcb77; }
.tip-item {
    display: flex; gap: 8px; align-items: flex-start;
    padding: 7px 0; border-bottom: 1px solid var(--border);
}
.tip-item:last-child { border-bottom: none; padding-bottom: 0; }
.tip-num { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 10px; color: #4d96ff; min-width: 14px; }
.tip-text { font-size: 10px; color: var(--text-muted); line-height: 1.5; }

/* ===== Fullscreen Tip ===== */
.fullscreen-tip-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; padding: 14px; text-align: center;
    transition: all .3s; position: relative; overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,.1);
}
.fullscreen-tip-card:hover { border-color: #6bcb77; transform: translateY(-2px); box-shadow: 0 12px 24px rgba(107,203,119,.15); }
.fullscreen-tip-icon {
    font-size: 32px; margin-bottom: 8px; display: inline-block;
    font-family: 'Syne', sans-serif; font-weight: 800; color: #6bcb77;
}
.fullscreen-tip-title {
    font-family: 'Syne', sans-serif; font-weight: 800; font-size: 14px;
    background: linear-gradient(135deg, #6bcb77, #4d96ff);
    -webkit-background-clip: text; background-clip: text;
    color: transparent; margin-bottom: 8px;
}
.fullscreen-tip-desc { font-size: 10px; color: var(--text-muted); margin-bottom: 12px; line-height: 1.5; }
.fullscreen-btn {
    background: rgba(107,203,119,.15); border: 1px solid rgba(107,203,119,.4);
    border-radius: 20px; padding: 6px 14px; font-size: 10px; font-weight: 600;
    color: var(--text); cursor: pointer; transition: all .2s;
    display: inline-flex; align-items: center; gap: 6px;
    font-family: 'DM Mono', monospace;
}
.fullscreen-btn:hover { background: rgba(107,203,119,.3); border-color: #6bcb77; transform: scale(1.02); }
.fullscreen-tip-shimmer {
    position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(107,203,119,.08), transparent);
    transition: left .5s;
}
.fullscreen-tip-card:hover .fullscreen-tip-shimmer { left: 100%; }

/* ===== Ad Panel Responsive ===== */
@media (max-width: 1200px) { .ad-panel { width: 150px; } }
@media (max-width: 1060px) { .ad-panel { display: none; } }