/*
 * Skeleton Loading States
 * Soft, rounded shimmer animation
 */

/* ═══════════════════════════════════════════════════════════
   BASE SKELETON
═══════════════════════════════════════════════════════════ */

.skeleton {
    position: relative;
    overflow: hidden;
    background: linear-gradient(
        135deg,
        var(--color-surface-cream) 0%,
        var(--color-surface-warm) 100%
    );
    border-radius: var(--radius-md);
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.5),
        transparent
    );
    animation: skeleton-shimmer 2s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* ═══════════════════════════════════════════════════════════
   SKELETON VARIANTS
═══════════════════════════════════════════════════════════ */

/* Text lines */
.skeleton-text {
    display: inline-block;
    height: 1em;
    margin-bottom: 0.75em;
    border-radius: var(--radius-sm);
    background: linear-gradient(
        135deg,
        var(--color-surface-cream) 0%,
        var(--color-surface-warm) 100%
    );
    position: relative;
    overflow: hidden;
}

.skeleton-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.5),
        transparent
    );
    animation: skeleton-shimmer 2s ease-in-out infinite;
}

.skeleton-text:last-child {
    width: 70%;
}

.skeleton-text-sm {
    height: 0.875em;
    margin-bottom: 0.5em;
}

.skeleton-text-lg {
    height: 1.25em;
    margin-bottom: 1em;
}

/* Headings */
.skeleton-heading {
    display: inline-block;
    height: 2.5em;
    width: 60%;
    margin-bottom: 1rem;
    border-radius: var(--radius-md);
    background: linear-gradient(
        135deg,
        var(--color-surface-cream) 0%,
        var(--color-surface-warm) 100%
    );
    position: relative;
    overflow: hidden;
}

.skeleton-heading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.5),
        transparent
    );
    animation: skeleton-shimmer 2s ease-in-out infinite;
}

.skeleton-heading-lg {
    height: 3.5em;
    width: 80%;
    margin-bottom: 1.5rem;
    border-radius: var(--radius-lg);
}

.skeleton-subheading {
    height: 1.5em;
    width: 40%;
    margin-bottom: 2rem;
    border-radius: var(--radius-sm);
}

/* Dark section variants (CTA sections, dark backgrounds) */
.cta-section .skeleton-text,
.cta-section .skeleton-heading,
.section--light-text .skeleton-text,
.section--light-text .skeleton-heading {
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.12) 0%,
        rgba(255, 255, 255, 0.08) 100%
    );
}

.cta-section .skeleton-text::after,
.cta-section .skeleton-heading::after,
.section--light-text .skeleton-text::after,
.section--light-text .skeleton-heading::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.15),
        transparent
    );
}

/* Skeleton inside buttons */
.btn .skeleton-text {
    margin-bottom: 0;
    height: 0.9em;
    vertical-align: middle;
}

/* Images */
.skeleton-image {
    aspect-ratio: 16/9;
    border-radius: var(--radius-xl);
}

.skeleton-image-square {
    aspect-ratio: 1;
    border-radius: var(--radius-xl);
}

.skeleton-image-portrait {
    aspect-ratio: 3/4;
    border-radius: var(--radius-xl);
}

.skeleton-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
}

.skeleton-avatar-lg {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
}

/* Buttons */
.skeleton-button {
    height: 52px;
    width: 200px;
    border-radius: var(--radius-full);
}

.skeleton-button-sm {
    height: 44px;
    width: 140px;
    border-radius: var(--radius-full);
}

/* Cards */
.skeleton-card {
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-xl);
}

/* Video */
.skeleton-video {
    aspect-ratio: 16/9;
    background: linear-gradient(
        135deg,
        var(--color-surface-dark) 0%,
        var(--color-ink-soft) 100%
    );
    border-radius: var(--radius-xl);
}

.skeleton-video::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.08),
        transparent
    );
}

/* Logos */
.skeleton-logo {
    height: 40px;
    width: 120px;
    border-radius: var(--radius-md);
}

/* ═══════════════════════════════════════════════════════════
   SKELETON GROUPS
═══════════════════════════════════════════════════════════ */

/* Hero section */
.skeleton-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--section-padding) var(--container-padding);
    min-height: 80vh;
    justify-content: center;
}

.skeleton-hero .skeleton-heading-lg {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.skeleton-hero .skeleton-subheading {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About section */
.skeleton-about {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
    align-items: center;
}

@media (max-width: 768px) {
    .skeleton-about {
        grid-template-columns: 1fr;
    }
}

/* Product card */
.skeleton-product-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Interview list */
.skeleton-interview {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--grid-gap);
    align-items: start;
}

@media (max-width: 768px) {
    .skeleton-interview {
        grid-template-columns: 1fr;
    }
}

/* Community grid */
.skeleton-community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--grid-gap);
}

/* Media logos */
.skeleton-media-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    justify-content: center;
    align-items: center;
}

/* ═══════════════════════════════════════════════════════════
   FADE IN ANIMATIONS
   NOTE: .fade-in, .fade-in-up and their @keyframes are defined
   in pages.css to avoid conflicts. They use .is-visible trigger.
   No skeleton-specific animation classes remain.
═══════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════
   LOADING STATE TOGGLE
═══════════════════════════════════════════════════════════ */

[data-loading="true"] .content-loaded {
    display: none;
}

[data-loading="false"] .skeleton,
[data-loading="false"] .skeleton-group {
    display: none;
}

/* Default: content hidden */
.content-loaded {
    display: none;
}

[data-loaded] .content-loaded {
    display: block;
}

[data-loaded] .skeleton-group {
    display: none;
}

/* ═══════════════════════════════════════════════════════════
   CONTENT REVEAL — Smooth fade when Firestore content loads
   When page JS sets [data-content-ready] on <main>, skeleton
   placeholders hide and all sections fade in smoothly.
   No extra classes needed in HTML — works automatically.
═══════════════════════════════════════════════════════════ */

/* Hide skeleton shimmer elements once content is ready */
[data-content-ready] .skeleton-text,
[data-content-ready] .skeleton-heading {
    display: none;
}

/* All direct children of main start transparent while loading.
   Covers: .photo-block, .section, .cta-section, .page-hero,
   .story-hero, .coaching-nav, .coaching-panel, .contact-page */
.page__content > .photo-block,
.page__content > .section,
.page__content > .cta-section,
.page__content > .page-hero,
.page__content > .story-hero,
.page__content > .coaching-nav,
.page__content > .coaching-panel,
.page__content > .contact-page {
    opacity: 0;
    transition: opacity var(--duration-slow) var(--ease-smooth);
}

/* Inside photo-block: individual sections also fade */
.photo-block > .hero,
.photo-block > .section,
.photo-block > .cta-section {
    opacity: 0;
    transition: opacity var(--duration-slow) var(--ease-smooth);
}

/* Photo stays visible — only text sections fade in */
.photo-block > .photo-block__photo,
.photo-block > .photo-block__spacer {
    opacity: 1;
}

/* When content is ready, reveal everything */
[data-content-ready] > .photo-block,
[data-content-ready] > .section,
[data-content-ready] > .cta-section,
[data-content-ready] > .page-hero,
[data-content-ready] > .story-hero,
[data-content-ready] > .coaching-nav,
[data-content-ready] > .coaching-panel,
[data-content-ready] > .contact-page,
[data-content-ready] .photo-block > .hero,
[data-content-ready] .photo-block > .section,
[data-content-ready] .photo-block > .cta-section {
    opacity: 1;
}

/* Staggered reveal — sequential children appear one by one */
[data-content-ready] > :nth-child(1) { transition-delay: 0ms; }
[data-content-ready] > :nth-child(2) { transition-delay: 100ms; }
[data-content-ready] > :nth-child(3) { transition-delay: 200ms; }
[data-content-ready] > :nth-child(4) { transition-delay: 300ms; }
[data-content-ready] > :nth-child(5) { transition-delay: 400ms; }
[data-content-ready] > :nth-child(6) { transition-delay: 500ms; }
[data-content-ready] > :nth-child(7) { transition-delay: 600ms; }
[data-content-ready] > :nth-child(8) { transition-delay: 700ms; }

/* Inner photo-block sections get slight stagger too */
[data-content-ready] .photo-block > .hero { transition-delay: 0ms; }
[data-content-ready] .photo-block > .section:nth-of-type(1) { transition-delay: 100ms; }
[data-content-ready] .photo-block > .section:nth-of-type(2) { transition-delay: 200ms; }
[data-content-ready] .photo-block > .cta-section { transition-delay: 300ms; }