/* ============================================================
   LIBAS — SKELETON, LAZY LOAD & STAGGER ANIMATION
   File tambahan, tidak mengubah style yang sudah ada
   ============================================================ */

/* ============================================================
   1. SKELETON LOADING
   ============================================================ */

.skeleton {
    position: relative;
    overflow: hidden;
    background: #2c2c2e;
    border-radius: 12px;
    pointer-events: none;
    color: transparent !important;
}

.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.06) 50%,
        transparent 100%
    );
    animation: skeletonShimmer 1.4s infinite;
}

@keyframes skeletonShimmer {
    100% {
        transform: translateX(100%);
    }
}

/* Skeleton untuk gambar */
img.lazy-loading {
    background: linear-gradient(
        90deg,
        #2c2c2e 0%,
        #3a3a3c 50%,
        #2c2c2e 100%
    );
    background-size: 200% 100%;
    animation: skeletonPulse 1.4s ease-in-out infinite;
    color: transparent;
}

@keyframes skeletonPulse {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Skeleton blok generik (untuk card, hero, dll) */
.skeleton-block {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        #2c2c2e 0%,
        #3a3a3c 50%,
        #2c2c2e 100%
    );
    background-size: 200% 100%;
    animation: skeletonPulse 1.4s ease-in-out infinite;
    border-radius: inherit;
}

/* ============================================================
   2. LAZY LOAD — FADE IN SAAT GAMBAR SELESAI DIMUAT
   ============================================================ */

img[data-src],
img.lazy {
    opacity: 0;
    transition: opacity 0.5s ease;
}

img[data-src].is-loaded,
img.lazy.is-loaded {
    opacity: 1;
}

/* ============================================================
   3. STAGGER ANIMATION SAAT SCROLL
   ============================================================ */

/* Default: elemen tidak terlihat sebelum masuk viewport */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 1s cubic-bezier(0.22, 1, 0.36, 1),
        transform 1s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Variasi arah animasi */
.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.94);
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-scale.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* ============================================================
   4. HERO ENTRANCE ANIMATION (saat halaman pertama dibuka)
   ============================================================ */

.hero-enter {
    opacity: 0;
    transform: translateY(24px);
    animation: heroEnter 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-enter-delay-1 { animation-delay: 0.10s; }
.hero-enter-delay-2 { animation-delay: 0.20s; }
.hero-enter-delay-3 { animation-delay: 0.30s; }
.hero-enter-delay-4 { animation-delay: 0.40s; }
.hero-enter-delay-5 { animation-delay: 0.50s; }

@keyframes heroEnter {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   5. HORMATI PREFERENSI REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale,
    .hero-enter,
    img[data-src],
    img.lazy {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        transition: none !important;
    }

    .skeleton::after,
    .skeleton-block {
        animation: none !important;
    }
}

/* ============================================================
   FAQ SMOOTH ACCORDION
   Berlaku untuk <details> di halaman home
   ============================================================ */

/* Container FAQ */
.faq details {
    overflow: hidden;
}

/* Summary — hilangkan marker default */
.faq details > summary {
    list-style: none;
    cursor: pointer;
    user-select: none;
    position: relative;
    transition: color 0.25s ease;
}

.faq details > summary::-webkit-details-marker {
    display: none;
}

.faq details > summary::marker {
    display: none;
    content: '';
}

/* Ikon + / × */
.faq details > summary span {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 22px;
    height: 22px;

    font-size: 18px;
    line-height: 1;
    font-weight: 400;

    color: var(--red, #f5c100);

    transition:
        transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        color 0.25s ease;
}

/* Saat terbuka → ikon berputar 45° (efek + → ×) */
.faq details[open] > summary span {
    transform: rotate(45deg);
}

/* Summary hover */
.faq details > summary:hover {
    color: #fff;
}

/* ============================================================
   WRAPPER JAWABAN — untuk animasi smooth
   Ditambahkan otomatis oleh JS
   ============================================================ */

.faq details > .faq-answer-wrap {
    overflow: hidden;
    will-change: height, opacity;
    transition:
        height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.3s ease;
    opacity: 0;
}

.faq details[open] > .faq-answer-wrap {
    opacity: 1;
}

.faq details > .faq-answer-wrap > p {
    margin: 0;
    padding-top: 8px;
}

/* ============================================================
   FALLBACK — kalau JS gagal load, tetap tampil normal
   ============================================================ */

.faq details:not(.faq-enhanced) > p {
    animation: faqFadeIn 0.35s ease;
}

@keyframes faqFadeIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   HORMATI PREFERENSI REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
    .faq details > .faq-answer-wrap,
    .faq details > summary span {
        transition: none !important;
    }
}

/* ============================================================
   PAGE HERO COMPACT — Animasi Entrance
   ============================================================ */

.page-hero.compact > .eyebrow,
.page-hero.compact > h1,
.page-hero.compact > p,
.page-hero.compact .tutorial-demo {
    /* Pastikan transisi berjalan */
    will-change: opacity, transform;
}