/* Age Calculator (.ac-*) */

.ac-card { padding: 16px 18px; margin-bottom: 14px; }

/* Input */
.ac-input-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 12px;
    margin-bottom: 14px;
}
.ac-input-field { display: flex; flex-direction: column; gap: 6px; }
.ac-label {
    font: 600 11px var(--yst-font);
    color: var(--yst-text-muted);
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

/* Tabs */
.ac-tabs {
    display: flex;
    gap: 4px;
    background: var(--yst-bg-subtle);
    border-radius: 6px;
    padding: 3px;
    width: fit-content;
    margin-bottom: 6px;
}
.ac-tab-btn {
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 5px 12px;
    font: 600 11px var(--yst-font);
    color: var(--yst-text-muted);
    cursor: pointer;
    transition: all .15s;
    letter-spacing: var(--yst-letter-spacing);
}
.ac-tab-btn:hover { color: var(--yst-brand); }
.ac-tab-btn.active { background: var(--yst-brand); border-color: var(--yst-brand); color: #fff; }

.ac-tab-content { display: none; }
.ac-tab-content.active { display: block; }
.ac-date-input,
.ac-time-input { width: 100%; }
.ac-hint {
    font: 11px var(--yst-font);
    color: var(--yst-text-muted);
    margin-top: 4px;
}

.ac-calc-btn { width: 100%; height: 46px !important; font-size: 14px !important; }

.ac-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    padding: 10px 14px;
    border-radius: 6px;
    margin-top: 10px;
    font: 12px var(--yst-font);
}

/* Welcome */
.ac-welcome {
    text-align: center;
    padding: 40px 20px;
}
.ac-welcome-icon { font-size: 48px; margin-bottom: 10px; }
.ac-welcome-title { font: 700 18px var(--yst-font); margin: 0 0 6px; color: var(--yst-text); }
.ac-welcome-desc { font: 13px var(--yst-font); color: var(--yst-text-muted); margin: 0; }

/* Hero */
.ac-hero {
    text-align: center;
    padding: 24px 20px;
    background: linear-gradient(135deg, var(--yst-brand-soft) 0%, #fff 100%);
    border-radius: 10px;
    margin-bottom: 14px;
    border: 1px solid var(--yst-border);
}
.ac-age-display {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 6px;
}
.ac-age-number {
    font: 800 56px/1 var(--yst-font);
    color: var(--yst-brand);
    letter-spacing: -0.02em;
}
.ac-age-label {
    font: 700 22px var(--yst-font);
    color: var(--yst-text);
}
.ac-birth-info {
    font: 13px var(--yst-font);
    color: var(--yst-text-muted);
    margin-top: 8px;
}

/* Breakdown */
.ac-breakdown {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 14px;
}
.ac-breakdown-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.ac-cell {
    background: var(--yst-bg-subtle);
    border: 1px solid var(--yst-border);
    border-left: 3px solid var(--yst-brand);
    border-radius: 6px;
    padding: 10px 12px;
    text-align: center;
}
.ac-cell-value {
    font: 700 22px var(--yst-font-mono, monospace);
    color: var(--yst-text);
    line-height: 1.2;
}
.ac-cell-label {
    font: 11px var(--yst-font);
    color: var(--yst-text-muted);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

/* Totals */
.ac-totals {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}
.ac-total {
    background: #fff;
    border: 1px solid var(--yst-border);
    border-radius: 6px;
    padding: 10px 12px;
    text-align: center;
}
.ac-total .total-value {
    font: 700 16px var(--yst-font-mono, monospace);
    color: var(--yst-text);
    word-break: break-all;
}
.ac-total .total-label {
    font: 11px var(--yst-font);
    color: var(--yst-text-muted);
    margin-top: 3px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

/* Birthday */
.ac-birthday {
    background: linear-gradient(135deg, #fff7ed 0%, #fff 100%);
    border: 1px solid #fed7aa;
    border-radius: 8px;
    padding: 14px 18px;
    text-align: center;
    color: var(--yst-text);
    font: 14px/1.6 var(--yst-font);
}
.ac-birthday strong { color: #c2410c; font-weight: 700; }

@media (max-width: 768px) {
    .ac-input-grid { grid-template-columns: 1fr; }
    .ac-totals { grid-template-columns: repeat(2, 1fr); }
    .ac-age-number { font-size: 44px; }
}