/* ===== ACTIVITIES — FINAL PREMIUM REDESIGN ===== */

:root {
    --activities-bg: #eff9ff;
    --activities-bg-2: #dff1ff;
    --activities-surface: rgba(255, 255, 255, 0.74);
    --activities-surface-strong: rgba(255, 255, 255, 0.94);
    --activities-border: rgba(16, 55, 92, 0.10);
    --activities-text: #152433;
    --activities-text-soft: #5f7182;
    --activities-title: #0d5fc3;
    --activities-shadow-sm: 0 10px 22px rgba(11, 43, 72, 0.08);
    --activities-shadow-md: 0 20px 40px rgba(11, 43, 72, 0.12);
    --activities-shadow-lg: 0 30px 70px rgba(11, 43, 72, 0.18);
    --activities-radius-xl: 32px;
    --activities-radius-lg: 24px;
    --activities-radius-md: 18px;
    --activities-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Section */
.activities {
    position: relative;
    overflow: hidden;
    padding: clamp(80px, 10vw, 120px) 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(255,255,255,0.92) 0, transparent 18%),
        radial-gradient(circle at 88% 12%, rgba(59, 198, 255, 0.14) 0, transparent 22%),
        radial-gradient(circle at 72% 78%, rgba(255, 191, 71, 0.10) 0, transparent 18%),
        linear-gradient(180deg, var(--activities-bg) 0%, var(--activities-bg-2) 50%, #f5fbff 100%);
    isolation: isolate;
}

.activities::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(255,255,255,0.10) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.10) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.22;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), rgba(0,0,0,0.12));
    pointer-events: none;
    z-index: 0;
}

.activities::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 180px;
    background: linear-gradient(to top, rgba(255,255,255,0.55), transparent);
    pointer-events: none;
    z-index: 0;
}

/* Title */
.section-title {
    position: relative;
    z-index: 1;
    margin: 0 auto 60px;
    max-width: 12ch;
    text-align: center;
    color: var(--activities-title);
    font-size: clamp(2.2rem, 5vw, 4.8rem);
    line-height: 0.94;
    font-weight: 900;
    letter-spacing: -0.04em;
    text-transform: uppercase;
    text-wrap: balance;
}

.section-title::after {
    content: "";
    display: block;
    width: 96px;
    height: 6px;
    margin: 18px auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(13,95,195,0.12), rgba(13,95,195,0.95), rgba(13,95,195,0.12));
    box-shadow: 0 8px 20px rgba(13,95,195,0.18);
}

/* Grid */
.activities-grid {
    position: relative;
    z-index: 1;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
}

/* Layout asimétrico real */
.activities-grid > .activity-card:nth-child(1) {
    grid-column: span 7;
    min-height: 620px;
}

.activities-grid > .activity-card:nth-child(2),
.activities-grid > .activity-card:nth-child(3) {
    grid-column: span 5;
    min-height: 298px;
}

.activities-grid > .activity-card:nth-child(4),
.activities-grid > .activity-card:nth-child(5),
.activities-grid > .activity-card:nth-child(6),
.activities-grid > .activity-card:nth-child(7) {
    grid-column: span 3;
}

.activities-grid > .activity-card:nth-child(8) {
    grid-column: span 6;
}

/* Cards */
.activity-card {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: var(--activities-radius-xl);
    background: linear-gradient(180deg, rgba(255,255,255,0.72), var(--activities-surface-strong));
    border: 1px solid rgba(255,255,255,0.58);
    box-shadow: var(--activities-shadow-md);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    isolation: isolate;
    transition:
        transform 180ms var(--activities-ease),
        box-shadow 180ms var(--activities-ease),
        border-color 180ms var(--activities-ease);
}

/* Spotlight background */
.activity-card::before {
    content: "";
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.30), transparent 22%);
    opacity: 0;
    transition: opacity 180ms var(--activities-ease);
    pointer-events: none;
    z-index: 0;
}

.activity-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(180deg, rgba(255,255,255,0.88), rgba(13,95,195,0.16), rgba(255,255,255,0.24));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    z-index: 4;
}

.activity-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--activities-shadow-lg);
    border-color: rgba(13,95,195,0.14);
}

.activity-card:hover::before {
    opacity: 1;
}

/* Image */
.activity-image {
    position: relative;
    height: 270px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.activities-grid > .activity-card:nth-child(1) .activity-image {
    height: 360px;
}

.activities-grid > .activity-card:nth-child(2) .activity-image,
.activities-grid > .activity-card:nth-child(3) .activity-image {
    height: 180px;
}

.activity-image::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to top, rgba(10, 18, 28, 0.82) 0%, rgba(10, 18, 28, 0.28) 38%, rgba(10, 18, 28, 0.08) 100%);
    z-index: 1;
}

.activity-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.18), transparent 40%, transparent 60%, rgba(255,255,255,0.10));
    mix-blend-mode: screen;
    opacity: 0.58;
    z-index: 1;
    transition: opacity 180ms var(--activities-ease);
}

.activity-card:hover .activity-image::after {
    opacity: 0.86;
}

/* Badge */
.activity-badge {
    position: absolute;
    top: 18px;
    left: 18px;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 8px 14px;
    border-radius: 999px;
    color: #fff;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    box-shadow: 0 10px 22px rgba(0,0,0,0.14);
    backdrop-filter: blur(12px);
}

.activity-badge::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 4px rgba(255,255,255,0.14);
}

/* Icon */
.activity-icon {
    position: absolute;
    right: 20px;
    top: 194px;
    z-index: 5;
    width: 60px;
    height: 60px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.35rem;
    border: 1px solid rgba(255,255,255,0.24);
    box-shadow: 0 16px 28px rgba(0,0,0,0.16);
    backdrop-filter: blur(14px);
    transition:
        transform 180ms var(--activities-ease),
        box-shadow 180ms var(--activities-ease);
}

.activities-grid > .activity-card:nth-child(1) .activity-icon {
    top: 282px;
}

.activities-grid > .activity-card:nth-child(2) .activity-icon,
.activities-grid > .activity-card:nth-child(3) .activity-icon {
    top: 104px;
}

.activity-card:hover .activity-icon {
    transform: rotate(8deg) scale(1.06);
    box-shadow: 0 20px 34px rgba(0,0,0,0.20);
}

/* Content */
.activity-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 26px 24px 24px;
    background: linear-gradient(180deg, rgba(255,255,255,0.22), rgba(255,255,255,0.02));
}

.activity-content h3 {
    margin-bottom: 12px;
    color: var(--activities-text);
    font-size: clamp(1.7rem, 2vw, 2.35rem);
    line-height: 1.02;
    font-weight: 900;
    letter-spacing: -0.04em;
    text-wrap: balance;
}

.activity-content p {
    margin-bottom: 24px;
    color: var(--activities-text-soft);
    font-size: 1rem;
    line-height: 1.7;
}

/* Button */
.activity-btn {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    width: fit-content;
    padding: 12px 20px;
    border-radius: 999px;
    text-decoration: none;
    color: #fff;
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    box-shadow: 0 14px 28px rgba(13,95,195,0.18);
    transition:
        transform 180ms var(--activities-ease),
        box-shadow 180ms var(--activities-ease),
        filter 180ms var(--activities-ease);
}

.activity-btn::after {
    content: "→";
    font-size: 1rem;
    transition: transform 180ms var(--activities-ease);
}

.activity-btn:hover {
    transform: translateY(-2px);
    filter: saturate(1.05);
}

.activity-btn:hover::after {
    transform: translateX(4px);
}

/* Color system */
.activity-chef .activity-badge,
.activity-chef .activity-btn { background: linear-gradient(135deg, #ff7a18, #ff5a2f); }
.activity-science .activity-badge,
.activity-science .activity-btn { background: linear-gradient(135deg, #3ba0ff, #1767d2); }
.activity-aqua .activity-badge,
.activity-aqua .activity-btn { background: linear-gradient(135deg, #16c7d9, #00a5cb); }
.activity-marathon .activity-badge,
.activity-marathon .activity-btn { background: linear-gradient(135deg, #2f7ff0, #1152b6); }
.activity-mental .activity-badge,
.activity-mental .activity-btn { background: linear-gradient(135deg, #8c5cff, #5d30d2); }
.activity-zumba .activity-badge,
.activity-zumba .activity-btn { background: linear-gradient(135deg, #ff53a5, #ff2d72); }
.activity-crossfit .activity-badge,
.activity-crossfit .activity-btn { background: linear-gradient(135deg, #4cc76b, #2f9a4c); }
.activity-surprise .activity-badge,
.activity-surprise .activity-btn { background: linear-gradient(135deg, #f7b733, #fc5b2a); }

.activity-chef .activity-icon { background: linear-gradient(135deg, rgba(255,122,24,0.92), rgba(255,90,47,0.92)); }
.activity-science .activity-icon { background: linear-gradient(135deg, rgba(59,160,255,0.92), rgba(23,103,210,0.92)); }
.activity-aqua .activity-icon { background: linear-gradient(135deg, rgba(22,199,217,0.92), rgba(0,165,203,0.92)); }
.activity-marathon .activity-icon { background: linear-gradient(135deg, rgba(47,127,240,0.92), rgba(17,82,182,0.92)); }
.activity-mental .activity-icon { background: linear-gradient(135deg, rgba(140,92,255,0.92), rgba(93,48,210,0.92)); }
.activity-zumba .activity-icon { background: linear-gradient(135deg, rgba(255,83,165,0.92), rgba(255,45,114,0.92)); }
.activity-crossfit .activity-icon { background: linear-gradient(135deg, rgba(76,199,107,0.92), rgba(47,154,76,0.92)); }
.activity-surprise .activity-icon { background: linear-gradient(135deg, rgba(247,183,51,0.92), rgba(252,91,42,0.92)); }

/* Scroll reveal: visual only, no CLS */
.activity-card {
    opacity: 1;
    clip-path: inset(0 0 0 0 round 32px);
}

@supports (animation-timeline: view()) {
    .activity-card {
        opacity: 0;
        clip-path: inset(14% 0 0 0 round 32px);
        animation: card-reveal linear both;
        animation-timeline: view();
        animation-range: entry 8% entry 42%;
    }

    .activity-image::before {
        animation: image-reveal linear both;
        animation-timeline: view();
        animation-range: entry 10% entry 50%;
    }
}

@keyframes card-reveal {
    to {
        opacity: 1;
        clip-path: inset(0 0 0 0 round 32px);
    }
}

@keyframes image-reveal {
    from { opacity: 0.92; }
    to { opacity: 1; }
}

/* Responsive */
@media (max-width: 1200px) {
    .activities-grid > .activity-card:nth-child(1) { grid-column: span 12; min-height: 560px; }
    .activities-grid > .activity-card:nth-child(2),
    .activities-grid > .activity-card:nth-child(3),
    .activities-grid > .activity-card:nth-child(4),
    .activities-grid > .activity-card:nth-child(5),
    .activities-grid > .activity-card:nth-child(6),
    .activities-grid > .activity-card:nth-child(7),
    .activities-grid > .activity-card:nth-child(8) { grid-column: span 6; }

    .activities-grid > .activity-card:nth-child(1) .activity-image { height: 320px; }
    .activities-grid > .activity-card:nth-child(1) .activity-icon { top: 244px; }
}

@media (max-width: 768px) {
    .activities {
        padding: 60px 0;
    }

    .section-title {
        margin-bottom: 34px;
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .activities-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 14px;
    }

    .activities-grid > .activity-card:nth-child(n) {
        grid-column: auto;
        min-height: 460px;
    }

    .activity-card {
        border-radius: 24px;
    }

    .activity-image,
    .activities-grid > .activity-card:nth-child(1) .activity-image,
    .activities-grid > .activity-card:nth-child(2) .activity-image,
    .activities-grid > .activity-card:nth-child(3) .activity-image {
        height: 240px;
    }

    .activity-icon,
    .activities-grid > .activity-card:nth-child(1) .activity-icon,
    .activities-grid > .activity-card:nth-child(2) .activity-icon,
    .activities-grid > .activity-card:nth-child(3) .activity-icon {
        top: 186px;
        right: 16px;
        width: 56px;
        height: 56px;
        border-radius: 18px;
    }

    .activity-content {
        padding: 22px 20px 20px;
    }

    .activity-content h3 {
        font-size: 1.8rem;
    }

    .activity-content p {
        font-size: 1rem;
    }

    .activity-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .activities {
        padding: 52px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .activities-grid > .activity-card:nth-child(n) {
        min-height: 430px;
    }

    .activity-image,
    .activities-grid > .activity-card:nth-child(1) .activity-image,
    .activities-grid > .activity-card:nth-child(2) .activity-image,
    .activities-grid > .activity-card:nth-child(3) .activity-image {
        height: 220px;
    }

    .activity-content h3 {
        font-size: 1.58rem;
    }

    .activity-content p {
        font-size: 0.95rem;
        line-height: 1.6;
    }
}

@media (hover: none) {
    .activity-card:hover,
    .activity-btn:hover,
    .activity-card:hover .activity-icon {
        transform: none;
    }

    .activity-card::before {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .activity-card,
    .activity-icon,
    .activity-btn,
    .activity-image::before,
    .activity-image::after {
        animation: none !important;
        transition: none !important;
    }

    .activity-card {
        opacity: 1 !important;
        clip-path: inset(0 0 0 0 round 32px) !important;
    }
}