/* ============================================================
   COUNTRIES — bloque cinematográfico "casos por país"
   Layout: 1 destacado grande + grid asymétrico
   Banderas emoji XL con glow cosmic + reveal 2400ms staggered
   ============================================================ */

.ad-countries-section {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 32px;
    overflow: hidden;
}

/* Constellation SVG background (decorativo) */
.ad-countries-constellation {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.5;
    z-index: 0;
}
.ad-countries-constellation svg {
    width: 100%;
    height: 100%;
}
.ad-countries-constellation line {
    stroke: rgba(90, 200, 250, 0.18);
    stroke-width: 1;
    stroke-dasharray: 3 6;
}
@media (prefers-reduced-motion: no-preference) {
    .ad-countries-constellation line {
        animation: ad-conn-dash 18000ms linear infinite;
    }
    @keyframes ad-conn-dash {
        from { stroke-dashoffset: 0; }
        to   { stroke-dashoffset: -90; }
    }
}

/* Header */
.ad-countries-head {
    position: relative;
    z-index: 1;
    text-align: center;
    margin-bottom: 60px;
}
.ad-countries-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--ad-r-full);
    background: rgba(90, 200, 250, 0.08);
    border: 1px solid rgba(90, 200, 250, 0.25);
    color: var(--ad-accent);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.ad-countries-eyebrow svg { color: var(--ad-accent); }

.ad-countries-title {
    font-size: clamp(32px, 4.5vw, 52px);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.05;
    margin: 0 0 14px;
}
.ad-countries-title-grad {
    background: var(--ad-grad-cosmic);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.ad-countries-sub {
    font-size: 17px;
    color: var(--ad-text-muted);
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.55;
}

/* ============================================================
   GRID asymmetric — featured grande + 6 small cards
   ============================================================ */
.ad-countries-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 16px;
    grid-template-areas:
        "featured s1 s2 s3"
        "featured s4 s5 s6";
}

/* Cards comunes */
.ad-country-card {
    position: relative;
    background: var(--ad-bg-surface);
    border: 1px solid var(--ad-line);
    border-radius: var(--ad-r-xl);
    overflow: hidden;
    transition:
        transform 480ms var(--ad-ease-out),
        border-color 480ms var(--ad-ease-out),
        box-shadow 480ms var(--ad-ease-out);
}
.ad-country-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(
        circle at var(--mx, 50%) var(--my, 50%),
        rgba(90, 200, 250, 0.12),
        transparent 60%
    );
    opacity: 0;
    transition: opacity 480ms var(--ad-ease-out);
    pointer-events: none;
}
.ad-country-card:hover {
    transform: translateY(-4px);
    border-color: rgba(90, 200, 250, 0.4);
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(90, 200, 250, 0.2),
        inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}
.ad-country-card:hover::before { opacity: 1; }

.ad-country-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
    width: 100%;
    height: 100%;
}

/* ============================================================
   FEATURED — card destacada (país con más casos)
   ============================================================ */
.ad-country-featured {
    grid-area: featured;
    background: linear-gradient(
        135deg,
        rgba(90, 200, 250, 0.06) 0%,
        rgba(191, 90, 242, 0.06) 50%,
        rgba(255, 159, 10, 0.06) 100%
    );
    border-color: rgba(90, 200, 250, 0.18);
    min-height: 460px;
}
.ad-country-featured .ad-country-card-link {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}
.ad-country-featured-top {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.ad-country-featured-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(255, 159, 10, 0.14);
    border: 1px solid rgba(255, 159, 10, 0.32);
    color: var(--ad-accent-3);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: var(--ad-r-full);
    width: fit-content;
}

.ad-country-featured-flag {
    font-size: 132px; /* legacy — para fallback emoji 🌐 */
    line-height: 1;
    margin: 24px 0 8px;
    filter: drop-shadow(0 16px 40px rgba(0, 0, 0, 0.5));
    will-change: transform;
    display: inline-block;
}
.ad-country-featured-flag .ad-flag-img {
    width: 156px;
    height: auto;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
    display: block;
}

.ad-country-featured-name {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin: 0 0 6px;
    color: var(--ad-text);
}
.ad-country-featured-iso {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--ad-text-muted);
    letter-spacing: 0.16em;
}

.ad-country-featured-count {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-top: 24px;
}
.ad-country-featured-num {
    font-size: 64px;
    font-weight: 800;
    line-height: 1;
    background: var(--ad-grad-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.03em;
}
.ad-country-featured-label {
    font-size: 14px;
    color: var(--ad-text-muted);
    font-weight: 500;
}

.ad-country-featured-recent {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--ad-line);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.ad-country-featured-recent-title {
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ad-text-muted);
    margin-bottom: 4px;
}
.ad-country-recent-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--ad-r-md);
    font-size: 13px;
    color: var(--ad-text);
    transition: background 220ms var(--ad-ease-out), transform 220ms var(--ad-ease-out);
}
.ad-country-recent-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(2px);
}
.ad-country-recent-ref {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 700;
    color: var(--ad-accent);
    background: rgba(90, 200, 250, 0.12);
    padding: 2px 7px;
    border-radius: 4px;
    flex-shrink: 0;
}
.ad-country-recent-title {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ad-country-featured-cta {
    margin-top: 24px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ad-accent);
    transition: gap 320ms var(--ad-ease-out);
}
.ad-country-card:hover .ad-country-featured-cta { gap: 14px; }

/* ============================================================
   SMALL cards — países secundarios
   ============================================================ */
.ad-country-small { min-height: 220px; }
.ad-country-small.ad-c-s1 { grid-area: s1; }
.ad-country-small.ad-c-s2 { grid-area: s2; }
.ad-country-small.ad-c-s3 { grid-area: s3; }
.ad-country-small.ad-c-s4 { grid-area: s4; }
.ad-country-small.ad-c-s5 { grid-area: s5; }
.ad-country-small.ad-c-s6 { grid-area: s6; }

.ad-country-small .ad-country-card-link {
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    height: 100%;
    position: relative;
    z-index: 1;
}
.ad-country-small-flag {
    font-size: 56px; /* legacy — para fallback emoji 🌌 */
    line-height: 1;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.45));
    will-change: transform;
    display: inline-block;
}
.ad-country-small-flag .ad-flag-img {
    width: 72px;
    height: auto;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
    display: block;
}
.ad-country-small-info {
    width: 100%;
    margin-top: 16px;
}
.ad-country-small-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--ad-text);
    letter-spacing: -0.01em;
    margin: 0 0 4px;
    line-height: 1.2;
}
.ad-country-small-count {
    display: flex;
    align-items: baseline;
    gap: 6px;
}
.ad-country-small-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 22px;
    font-weight: 700;
    color: var(--ad-accent);
}
.ad-country-small-label {
    font-size: 11px;
    color: var(--ad-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}

/* ============================================================
   ANIMATIONS — staggered reveal 2000ms+ + flag entrance
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
    .ad-country-card {
        opacity: 0;
        transform: translateY(40px) scale(0.96);
        filter: blur(8px);
        transition:
            opacity 2200ms var(--ad-ease-out),
            transform 2200ms var(--ad-ease-out),
            filter 2200ms var(--ad-ease-out),
            border-color 480ms var(--ad-ease-out),
            box-shadow 480ms var(--ad-ease-out);
    }
    .ad-country-card.is-visible {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }

    /* Flag entrance — pop in dramatic */
    .ad-country-featured-flag,
    .ad-country-small-flag {
        opacity: 0;
        transform: scale(0.4) rotate(-12deg);
        transition:
            opacity 2400ms var(--ad-ease-out),
            transform 2400ms cubic-bezier(.34, 1.56, .64, 1); /* slight overshoot */
    }
    .ad-country-card.is-visible .ad-country-featured-flag,
    .ad-country-card.is-visible .ad-country-small-flag {
        opacity: 1;
        transform: scale(1) rotate(0);
        transition-delay: 400ms;
    }

    /* Hover: flag scale + subtle rotate */
    .ad-country-card:hover .ad-country-featured-flag {
        transform: scale(1.08) rotate(2deg);
        transition: transform 1200ms cubic-bezier(.34, 1.56, .64, 1);
    }
    .ad-country-card:hover .ad-country-small-flag {
        transform: scale(1.12) rotate(-3deg);
        transition: transform 1000ms cubic-bezier(.34, 1.56, .64, 1);
    }

    /* Number count up animation (visual cue) */
    .ad-country-featured-num,
    .ad-country-small-num {
        background-size: 200% 200%;
        animation: ad-grad-shift 8000ms ease-in-out infinite;
    }
}

/* ============================================================
   CTA "ver todos" + RESPONSIVE
   ============================================================ */
.ad-countries-cta {
    position: relative;
    z-index: 1;
    text-align: center;
    margin-top: 56px;
}
.ad-countries-cta-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: rgba(19, 26, 45, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid var(--ad-line);
    border-radius: var(--ad-r-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--ad-text);
    transition:
        border-color 320ms var(--ad-ease-out),
        background 320ms var(--ad-ease-out),
        gap 320ms var(--ad-ease-out);
}
.ad-countries-cta-link:hover {
    border-color: var(--ad-accent);
    background: rgba(90, 200, 250, 0.08);
    gap: 14px;
}

/* Empty state */
.ad-countries-empty {
    text-align: center;
    padding: 80px 24px;
    color: var(--ad-text-muted);
    font-size: 15px;
    background: var(--ad-bg-surface);
    border: 1px dashed var(--ad-line);
    border-radius: var(--ad-r-lg);
}

/* Responsive */
@media (max-width: 1024px) {
    .ad-countries-grid {
        grid-template-columns: 1fr 1fr 1fr;
        grid-template-rows: auto auto auto;
        grid-template-areas:
            "featured featured featured"
            "s1 s2 s3"
            "s4 s5 s6";
    }
    .ad-country-featured { min-height: 380px; }
    .ad-country-featured-flag { font-size: 100px; }
    .ad-country-featured-name { font-size: 30px; }
    .ad-country-featured-num { font-size: 52px; }
}
@media (max-width: 720px) {
    .ad-countries-section { padding: 60px 20px; }
    .ad-countries-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto auto;
        grid-template-areas:
            "featured featured"
            "s1 s2"
            "s3 s4"
            "s5 s6";
        gap: 12px;
    }
    .ad-country-featured { min-height: 320px; }
    .ad-country-featured .ad-country-card-link { padding: 28px; }
    .ad-country-featured-flag { font-size: 80px; }
    .ad-country-featured-name { font-size: 24px; }
    .ad-country-featured-num { font-size: 44px; }
    .ad-country-featured-recent { margin-top: 18px; padding-top: 14px; }
    .ad-country-small { min-height: 180px; }
    .ad-country-small-flag { font-size: 44px; }
}
@media (max-width: 420px) {
    .ad-countries-grid {
        grid-template-columns: 1fr;
        grid-template-areas:
            "featured"
            "s1" "s2" "s3" "s4" "s5" "s6";
    }
}