/* ================================================================
   AGE-CALCULATOR.CSS  —  Premium Real-Time Age Calculator
   ================================================================ */

/* ══════════════════════════════════════════════════════════════════
   PAGE SHELL
══════════════════════════════════════════════════════════════════ */
.tool-page {
    min-height: calc(100vh - 64px);
    background: var(--bg);
    padding: 2.8rem 1rem 5rem;
}

/* ══════════════════════════════════════════════════════════════════
   PAGE HEADER
══════════════════════════════════════════════════════════════════ */
.tool-page-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 2.4rem;
}

.tool-page-badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: var(--primary-light);
    color: var(--primary);
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    padding: .32rem .9rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.tool-page-title {
    font-size: clamp(1.95rem, 4.5vw, 2.9rem);
    font-weight: 800;
    color: var(--text);
    line-height: 1.15;
    margin-bottom: .55rem;
    letter-spacing: -.5px;
}

.tool-page-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════════════
   INPUT CARD
══════════════════════════════════════════════════════════════════ */
.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: 2.2rem 2rem;
    max-width: 520px;
    margin: 0 auto;
}

.age-input-group { margin-bottom: 1.5rem; }

.age-input-label {
    display: block;
    font-size: .88rem;
    font-weight: 600;
    color: var(--text-soft);
    margin-bottom: .5rem;
}

.age-input-wrap { position: relative; }

.age-input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.05rem;
    pointer-events: none;
}

.age-date-input {
    width: 100%;
    padding: .9rem 1rem .9rem 2.9rem;
    font-size: 1rem;
    font-family: inherit;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.age-date-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3.5px rgba(79, 70, 229, .13);
}

.age-date-input[aria-invalid="true"] {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, .1);
}

.age-input-error {
    display: none;
    font-size: .82rem;
    color: #ef4444;
    margin-top: .42rem;
    font-weight: 500;
}
.age-input-error.visible { display: block; }

/* ── Calculate button ── */
.btn-calculate {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 20px rgba(79, 70, 229, .38);
    letter-spacing: .02em;
}
.btn-calculate:hover {
    opacity: .91;
    transform: translateY(-1px);
    box-shadow: 0 8px 28px rgba(79, 70, 229, .42);
}
.btn-calculate:active { transform: translateY(0); opacity: 1; }

.btn-calculate-icon { font-size: 1rem; }

/* ══════════════════════════════════════════════════════════════════
   RESULT CARD
══════════════════════════════════════════════════════════════════ */
.age-result-card {
    max-width: 660px;
    margin: 1.6rem auto 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .4s cubic-bezier(.4,0,.2,1),
                transform .4s cubic-bezier(.4,0,.2,1);
}

/* Browser-native [hidden] — no !important so JS reflow trick works */
.age-result-card[hidden] {
    display: none;
}

.age-result-card--visible {
    opacity: 1;
    transform: translateY(0);
}

/* Gradient top accent stripe */
.age-result-card::before {
    content: '';
    display: block;
    height: 4px;
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
}

.age-result-inner {
    padding: 2rem 2rem 1.8rem;
}

/* ── Section label ── */
.age-section-label {
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: 0 0 1rem;
}

/* ── Section divider ── */
.age-section-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 1.8rem 0 0;
}

/* ── PRIMARY ROW: Years / Months / Days ── */
.age-primary-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .85rem;
    margin-bottom: .25rem;
}

.age-primary-block {
    background: var(--primary-light);
    border-radius: var(--radius);
    padding: 1.4rem .75rem 1.1rem;
    text-align: center;
    position: relative;
}

.age-primary-block--hero {
    background: linear-gradient(135deg, #4f46e5, #3730a3);
}

.age-primary-block--hero .age-primary-value,
.age-primary-block--hero .age-primary-unit {
    color: #fff !important;
    opacity: 1 !important;
}

.age-primary-value {
    display: block;
    font-size: clamp(1.9rem, 4vw, 2.6rem);
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: .28rem;
    font-variant-numeric: tabular-nums;
}

.age-primary-unit {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--primary);
    opacity: .7;
}

/* ── LIVE TICKER ROW ── */
.age-live-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    background: #0f172a;
    border-radius: var(--radius-lg);
    padding: 1.2rem 1.5rem;
    margin-bottom: .25rem;
}

.age-live-block {
    text-align: center;
    min-width: 72px;
}

.age-live-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #a5f3fc;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    margin-bottom: .2rem;
    transition: color .15s;
}

.age-live-unit {
    font-size: .65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: #64748b;
}

.age-live-sep {
    font-size: 1.8rem;
    font-weight: 800;
    color: #334155;
    line-height: 1;
    padding-bottom: 1.2rem;
    align-self: flex-end;
    user-select: none;
}

/* Pulse on the seconds block */
.age-live-block--seconds .age-live-value {
    color: #34d399;
}

/* ── STATS GRID ── */
.age-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .7rem;
    margin-bottom: 1.2rem;
}

.age-stat-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .85rem 1rem;
    display: flex;
    align-items: center;
    gap: .7rem;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.age-stat-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-xs);
}

.age-stat-icon { font-size: 1.4rem; flex-shrink: 0; }

.age-stat-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.age-stat-label {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--text-muted);
}

/* ── BIRTHDAY PILL ── */
.age-birthday-pill {
    display: flex;
    align-items: center;
    gap: .65rem;
    background: linear-gradient(135deg, #fef9c3, #fde68a);
    border: 1.5px solid #fcd34d;
    border-radius: var(--radius);
    padding: .85rem 1.1rem;
    font-size: .92rem;
    font-weight: 600;
    color: #78350f;
    margin-bottom: 1.4rem;
}

/* ── ACTION ROW ── */
.age-action-row {
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
}

.btn-action {
    flex: 1;
    min-width: 120px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    padding: .72rem 1rem;
    font-size: .88rem;
    font-weight: 700;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    border: 1.5px solid transparent;
    letter-spacing: .01em;
}

.btn-copy {
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    color: #fff;
    box-shadow: 0 3px 14px rgba(79, 70, 229, .32);
}
.btn-copy:hover {
    opacity: .88;
    transform: translateY(-1px);
    box-shadow: 0 6px 22px rgba(79, 70, 229, .38);
}

.btn-share {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 0 3px 14px rgba(16, 185, 129, .3);
}
.btn-share:hover {
    opacity: .88;
    transform: translateY(-1px);
    box-shadow: 0 6px 22px rgba(16, 185, 129, .36);
}

.btn-reset {
    background: var(--bg);
    color: var(--text-muted);
    border-color: var(--border);
}
.btn-reset:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* ══════════════════════════════════════════════════════════════════
   SPONSOR SECTION
══════════════════════════════════════════════════════════════════ */
.sponsor-section {
    margin-top: 4rem;
    padding: 3rem 1rem;
    background: linear-gradient(180deg, var(--bg) 0%, #eef2ff 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.sponsor-section-inner {
    max-width: 900px;
    margin: 0 auto;
}

.sponsor-section-header {
    text-align: center;
    margin: 0 auto 2.5rem;
    max-width: 520px;
}

.sponsor-eyebrow {
    display: inline-block;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--primary);
    background: var(--primary-light);
    padding: .32rem 1rem;
    border-radius: 50px;
    margin: 0 0 .9rem;
    border: 1px solid rgba(79, 70, 229, .15);
}

.sponsor-section-title {
    font-size: clamp(1.35rem, 2.5vw, 1.8rem);
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
    letter-spacing: -.3px;
    margin: 0 0 .55rem;
}

.sponsor-section-sub {
    font-size: .93rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin: 0;
}

/* ── Grid: exactly 2 per row on desktop ── */
.sponsor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

/* ── Individual sponsor card ── */
.sponsor-card {
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 1.6rem 1.75rem 1.4rem;
    text-decoration: none !important;
    color: inherit;
    transition: transform var(--transition),
                box-shadow var(--transition),
                border-color var(--transition);
    box-shadow: var(--shadow-sm);
}

/* Gradient glow on hover */
.sponsor-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(79,70,229,.06), rgba(6,182,212,.04));
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.sponsor-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, .35);
}
.sponsor-card:hover::after { opacity: 1; }

/* Sponsored badge — inline flow at top of card, not absolute */
.sponsor-badge {
    display: inline-flex;
    align-self: flex-start;
    font-size: .63rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .09em;
    color: var(--primary);
    background: var(--primary-light);
    padding: .22rem .72rem;
    border-radius: 50px;
    border: 1px solid rgba(79, 70, 229, .22);
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.sponsor-card-body { flex: 1; }

.sponsor-card-title {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 .55rem;
    line-height: 1.35;
}

.sponsor-card-desc {
    font-size: .9rem;
    color: var(--text-soft);
    line-height: 1.65;
    margin: 0;
}

.sponsor-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.3rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.sponsor-cta {
    font-size: .88rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: .01em;
}

.sponsor-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px; height: 28px;
    background: var(--primary-light);
    border-radius: 50%;
    color: var(--primary);
    flex-shrink: 0;
    transition: background var(--transition), transform var(--transition);
}

.sponsor-card:hover .sponsor-arrow {
    background: var(--primary);
    color: #fff;
    transform: translate(2px, -2px);
}

/* ══════════════════════════════════════════════════════════════════
   TOAST NOTIFICATION
══════════════════════════════════════════════════════════════════ */
.age-toast {
    position: fixed;
    bottom: 1.8rem;
    left: 50%;
    transform: translateX(-50%) translateY(1.5rem);
    background: #0f172a;
    color: #fff;
    font-size: .9rem;
    font-weight: 600;
    padding: .75rem 1.4rem;
    border-radius: 50px;
    box-shadow: 0 8px 30px rgba(0,0,0,.22);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity .25s ease, transform .25s ease;
    z-index: 9999;
}

.age-toast--visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.age-toast--error { background: #dc2626; }

/* ══════════════════════════════════════════════════════════════════
   SEO CONTENT SECTION
══════════════════════════════════════════════════════════════════ */
.tool-seo-section {
    max-width: 720px;
    margin: 4rem auto 0;
    padding: 0 .5rem;
}

.tool-seo-section h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: .75rem;
}

.tool-seo-section p,
.tool-seo-section li {
    font-size: .95rem;
    color: var(--text-soft);
    line-height: 1.78;
}

.tool-seo-section ul {
    padding-left: 1.4rem;
    margin: .5rem 0 1rem;
}

.tool-seo-section li { margin-bottom: .35rem; }

/* ══════════════════════════════════════════════════════════════════
   ALSO-LIKE (INTERNAL LINKS)
══════════════════════════════════════════════════════════════════ */
.also-like-section {
    max-width: 720px;
    margin: 2.5rem auto 0;
    padding: 0 .5rem;
}

.also-like-section h3 {
    font-size: .78rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .09em;
    margin-bottom: 1rem;
}

.also-like-grid {
    display: flex;
    gap: .85rem;
    flex-wrap: wrap;
}

.also-like-card {
    display: flex;
    align-items: center;
    gap: .6rem;
    background: var(--card-bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: .72rem 1.1rem;
    text-decoration: none !important;
    font-size: .9rem;
    font-weight: 600;
    color: var(--text-soft);
    transition: border-color var(--transition), box-shadow var(--transition), color var(--transition);
    flex: 1;
    min-width: 170px;
}

.also-like-card:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.also-like-card-icon { font-size: 1.25rem; }

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════════ */
@media (max-width: 640px) {
    .tool-card,
    .age-result-card { border-radius: var(--radius-lg); }

    .age-result-inner { padding: 1.5rem 1.1rem 1.4rem; }

    /* 3-col primary stays 3-col but with smaller text */
    .age-primary-row { gap: .55rem; }

    .age-primary-value { font-size: 1.75rem; }

    .age-live-row { padding: 1rem; gap: .3rem; }
    .age-live-value { font-size: 1.55rem; }
    .age-live-sep { font-size: 1.4rem; }

    /* Stats grid: 2-col on mobile */
    .age-stats-grid { grid-template-columns: 1fr 1fr; }

    .age-action-row { gap: .55rem; }
    .btn-action { min-width: 0; font-size: .83rem; padding: .65rem .8rem; }

    /* Sponsor: 1 column on mobile */
    .sponsor-grid { grid-template-columns: 1fr; }

    .sponsor-card { padding: 1.4rem 1.2rem 1.2rem; }
    .sponsor-card-body { padding-right: 3rem; }
}

@media (min-width: 641px) and (max-width: 860px) {
    /* Keep 2-col sponsors on tablet */
    .sponsor-grid { grid-template-columns: repeat(2, 1fr); }
}