/* ============================================================
   COMMON.CSS
   Shared styles for the "detail page" template family:
   projects.php, event.php, blog.php
   ============================================================ */

:root {
    /* Existing Colors & Settings */
    --hover-red:     #ff6666;
    --bg-page:       #111111;
    --bg-card:       #1a1a1a;
    --bg-section:    rgba(255,255,255,.03);
    --border:        rgba(255,255,255,.08);
    --text-muted:    rgba(229,229,229,.6);
    --text-dimmed:   rgba(229,229,229,.75);
    
    --radius-pill:   9999px;
    --transition:    all 0.3s ease-in-out;
    --card-radius:   5px;
    --avatar-radius: 50%;

    /* Unified Fonts & Spacing */
    --fs-xs:         0.7rem;
    --fs-sm:         0.85rem;
    --fs-md:         0.95rem;
    --fs-lg:         1.4rem;
    --fs-xl:         1.5rem;
    --fs-hero:       clamp(1.8rem, 5vw, 3.2rem);
    --fs-icon:       2.5rem;

    --fw-light:      350;
    --fw-medium:     500;
    --fw-semibold:   600;
    --fw-bold:       700;
    --fw-extrabold:  800;

    --ls-tight:      -.02em;
    --ls-wide:       .05em;
    --ls-wider:      .08em;

    /* Structural unified vars */
    --bw-thin:       1px;
    --bw-thick:      2px;
    --bw-heavy:      3px;
    
    --z-modal:       1000;
    --z-lightbox:    2000;
}

html { scroll-behavior: smooth; }
*:focus-visible { outline: var(--bw-thick) solid var(--accent-color-1); outline-offset: 2px; }

body { background: var(--bg-page); min-height: 100vh; display: flex; flex-direction: column; line-height: 1.6; }

/* ── HERO BANNER ─────────────────────────────────────────── */
.event-hero {
    position: relative;
    width: 100%;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    background: var(--bg-card);
    margin-bottom: 0;
}

.event-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.35) blur(2px);
    transform: scale(1.04);
    transition: filter .5s;
}

.event-hero-content {
    position: relative;
    z-index: 2;
    width: 90%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 3rem 0 2.5rem;
}

.event-hero-back {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    color: var(--text-dimmed);
    font-size: var(--fs-sm);
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}
.event-hero-back::before { content: '←'; color: var(--accent-color-1); }
.event-hero-back:hover { color: var(--text-color); }

.event-hero h1 {
    font-size: var(--fs-hero);
    font-weight: var(--fw-extrabold);
    line-height: 1.15;
    letter-spacing: var(--ls-tight);
    background: linear-gradient(135deg, var(--accent-color-1), var(--primary-color-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.event-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem 1.5rem;
    font-size: var(--fs-md);
    color: var(--text-dimmed);
}
.event-hero-meta span { display: flex; align-items: center; gap: .35rem; }
.event-hero-meta .icon { color: var(--accent-color-1); }

/* ── PAGE CONTAINER ──────────────────────────────────────── */
.page-container {
    width: 90%;
    max-width: 1500px;
    margin: 0 auto;
    padding: 3rem 0 5rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

/* ── MAIN CONTENT / BODY SECTIONS ────────────────────────── */
.event-body {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.body-section {
    background: var(--bg-section);
    border-radius: var(--card-radius);
    padding: 2rem;
    border: var(--bw-thin) solid var(--border);
}

.body-section h2 {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    color: var(--primary-color-2);
    margin-bottom: 1.25rem;
    padding-bottom: .6rem;
    border-bottom: var(--bw-thick) solid rgba(255,117,24,.25);
}

.body-section p {
    font-size: var(--fs-md);
    line-height: 1.8;
    color: var(--text-dimmed);
    font-weight: var(--fw-light);
}

/* ── ABOUT / IMAGE + TEXT BLOCK ──────────────────────────── */
.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
}

.about-photo {
    flex: 1 1 280px;
    max-width: 320px;
}

.about-photo img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--card-radius);
    border: var(--bw-thin) solid var(--border);
    box-shadow: 0 8px 32px rgba(0,0,0,.5);
}

.about-text {
    flex: 2 1 400px;
}

/* ── AUTHOR / SPEAKER STRIP ──────────────────────────────── */
.author-strip {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    background: var(--bg-card);
    padding: 1.25rem 1.5rem;
    border-radius: var(--card-radius);
    border: var(--bw-thin) solid var(--border);
    border-left: var(--bw-heavy) solid var(--accent-color-1);
}

.author-strip img {
    width: 64px;
    height: 64px;
    border-radius: var(--avatar-radius);
    object-fit: cover;
    flex-shrink: 0;
    border: var(--bw-thick) solid var(--accent-color-1);
}

.author-strip h3,
.author-strip .author-name {
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--accent-color-1);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    margin-bottom: .3rem;
}

.author-strip p,
.author-strip .author-desc {
    font-size: var(--fs-md);
    line-height: 1.6;
    color: var(--text-muted);
    font-weight: var(--fw-light);
}

/* ── RESOURCES ───────────────────────────────────────────── */
.resources-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem 2rem;
}

@media (max-width:600px) { .resources-grid { grid-template-columns:1fr; } }

.resource-item-block { display: flex; flex-direction: column; }

.resource-link {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .6rem .5rem .2rem;
    color: var(--accent-color-1);
    text-decoration: none;
    font-size: var(--fs-md);
    font-weight: var(--fw-medium);
    border-radius: var(--card-radius);
    transition: var(--transition);
    position: relative;
    width: fit-content;
}
.resource-link::before { content: '→'; flex-shrink: 0; transition: transform .3s; }
.resource-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: var(--bw-thin);
    background: var(--accent-color-1);
    transition: width .3s ease;
}
.resource-link:hover { color: var(--hover-red); }
.resource-link:hover::before { transform: translateX(3px); }
.resource-link:hover::after  { width: 100%; }

.resource-item-block p {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    padding: 0 .5rem;
    line-height: 1.6;
}

/* ── GALLERY ─────────────────────────────────────────────── */
.gallery-preview {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
}

@media (max-width:640px) { .gallery-preview { grid-template-columns:1fr; } }

.gallery-main-img,
.gallery-side {
    overflow: hidden;
    border-radius: var(--card-radius);
    border: var(--bw-thin) solid var(--border);
}

.gallery-main-img img { width:100%; height:100%; object-fit:cover; display:block; transition:transform .45s ease; cursor:pointer; }
.gallery-main-img:hover img { transform:scale(1.04); }

.gallery-side { display:flex; flex-direction:column; gap:1rem; }

.gallery-thumb {
    flex:1; overflow:hidden; border-radius:var(--card-radius);
    border:var(--bw-thin) solid var(--border); cursor:pointer;
}
.gallery-thumb img { width:100%; height:100%; object-fit:cover; display:block; transition:transform .45s ease; }
.gallery-thumb:hover img { transform:scale(1.06); }

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-top: 1rem;
    padding: 10px 22px;
    border: var(--bw-thick) solid var(--accent-color-2);
    border-radius: var(--radius-pill);
    background: var(--accent-color-1);
    color: #000;
    font-size: var(--fs-md);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.view-all-btn:hover { background: #0c0a1a; color: var(--accent-color-1); }

/* ── GALLERY MODAL ───────────────────────────────────────── */
.gallery-modal {
    display: none;
    position: fixed;
    z-index: var(--z-modal);
    inset: 0;
    background: rgba(0,0,0,.95);
    overflow-y: auto;
}
.gallery-modal.active { display: block; }

.modal-wrapper {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1.5rem;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: var(--bw-thin) solid var(--border);
}

.modal-header h2 { font-size: var(--fs-xl); font-weight: var(--fw-bold); color: var(--primary-color-2); }

.close-modal {
    color: var(--text-color);
    font-size: var(--fs-icon);
    font-weight: var(--fw-bold);
    cursor: pointer;
    line-height: 1;
    padding: 0 .5rem;
    transition: color .3s;
    background: none;
    border: none;
}
.close-modal:hover { color: var(--accent-color-1); }

.modal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px,1fr));
    gap: 1.25rem;
}

.modal-item {
    border-radius: var(--card-radius);
    overflow: hidden;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    border: var(--bw-thin) solid var(--border);
}
.modal-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(255,117,24,.2); border-color: rgba(255,117,24,.4); }
.modal-item img { width:100%; height:220px; object-fit:cover; display:block; }

.img-num {
    position: absolute;
    top: .5rem; left: .5rem;
    background: rgba(0,0,0,.65);
    color: var(--text-color);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
}

/* ── LIGHTBOX ────────────────────────────────────────────── */
.lightbox {
    display: none;
    position: fixed;
    z-index: var(--z-lightbox);
    inset: 0;
    background: rgba(0,0,0,.97);
    justify-content: center;
    align-items: center;
}
.lightbox.active { display: flex; }

.lightbox-img { max-width: 90%; max-height: 88vh; object-fit: contain; border-radius: var(--card-radius); }

.lightbox-close {
    position: absolute;
    top: 1.25rem; right: 2rem;
    color: var(--text-color);
    font-size: var(--fs-icon);
    font-weight: var(--fw-bold);
    cursor: pointer;
    z-index: 2001;
    background: none;
    border: none;
    transition: color .3s;
}
.lightbox-close:hover { color: var(--accent-color-1); }

.lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-color);
    font-size: var(--fs-icon);
    font-weight: var(--fw-bold);
    cursor: pointer;
    padding: 1rem;
    user-select: none;
    z-index: 2001;
    background: none;
    border: none;
    transition: color .3s;
}
.lb-nav:hover { color: var(--accent-color-1); }
.lb-prev { left: 1rem; }
.lb-next { right: 1rem; }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width:768px) {
    .event-hero-content { padding:2rem 0 2rem; }
    .author-strip { flex-direction:column; text-align:center; }
    .author-strip img { align-self:center; }
    .modal-grid { grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); }
    .modal-item img { height:170px; }
}