/**
 * ------------------------------------------------------------------
 * CSS BERSAMA: NAV, MOBILE MENU, MODAL PENDAFTARAN, FOOTER
 * ------------------------------------------------------------------
 * Dipakai oleh halaman-halaman yang meng-include partials/nav.php,
 * partials/footer.php, dan/atau partials/modal-pendaftaran.php. Cara
 * pakai — taruh SEBELUM <style> milik halaman itu sendiri supaya CSS
 * spesifik halaman tetap bisa override jika perlu:
 *
 *     <link rel="stylesheet" href="https://konferensipangan.lahanuntukkehidupan.id/partials/site-chrome.css?v=5">
 *
 * Setiap warna/ukuran pakai var(--nama, fallback) sehingga tetap
 * tampil benar walau halaman yang memanggil tidak mendefinisikan
 * variabel dengan nama yang sama (mis. dasbor admin yang memakai
 * skema --primary-... / --neutral-... sendiri).
 *
 * CACHE-BUSTING: setiap kali file ini diedit, naikkan angka ?v= satu
 * nomor (mis. ?v=3 jadi ?v=4) pada SEMUA halaman yang meng-include-nya
 * supaya browser pengunjung lama otomatis mengambil versi terbaru
 * tanpa perlu clear cache manual.
 */

/* ── NAV DASAR ── */
nav#main-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: var(--nav-h, 72px); display: flex; align-items: center; justify-content: space-between;
    padding: 0 5%;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.5);
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}
nav#main-nav.nav-hide { transform: translateY(-100%); }
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-text { line-height: 1.2; }
.nav-logo-text .abbr { font-weight: 700; font-size: 1rem; color: var(--green-600, #006455); letter-spacing: 0.05em; }
.nav-logo-text .full { font-size: 0.65rem; font-weight: 400; color: var(--text-muted, #6b7c75); letter-spacing: 0.02em; }

/* ── NAV LINKS (desktop) ── */
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a {
    text-decoration: none; font-size: 0.875rem; font-weight: 500;
    padding: 8px 14px; border-radius: 6px;
    color: var(--text-mid, #4a5c55);
    transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { background: var(--green-50, #ebf5f3); color: var(--green-600, #006455); }
.nav-cta { background: var(--green-600, #006455) !important; color: white !important; padding: 8px 20px !important; border-radius: 6px !important; }
.nav-cta:hover { background: var(--green-700, #1f5c40) !important; }

.nav-hamburger { display: none; background: none; border: none; cursor: pointer; padding: 6px; border-radius: 6px; }
.nav-hamburger svg { display: block; stroke: var(--text-dark, #1b2622); }

/* ── MOBILE MENU ── */
.mobile-menu {
    display: none; position: fixed; top: var(--nav-h, 72px); left: 0; right: 0; z-index: 99;
    background: white; border-bottom: 1px solid var(--border, #d1dfda);
    flex-direction: column; padding: 12px 5%;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
    display: block; padding: 12px 0; text-decoration: none;
    font-size: 0.95rem; font-weight: 500; color: var(--text-mid, #4a5c55);
    border-bottom: 1px solid var(--green-50, #ebf5f3);
}
.mobile-menu a:last-child { border-bottom: none; margin-top: 8px; }

/* Dropdown "Halaman Kegiatan" (desktop) */
.nav-dropdown { position: relative; }
.nav-dropdown > a { display: flex; align-items: center; gap: 5px; }
.nav-dropdown > a svg { width: 13px; height: 13px; transition: transform 0.2s ease; flex-shrink: 0; }
.nav-dropdown:hover > a svg, .nav-dropdown:focus-within > a svg { transform: rotate(180deg); }
.nav-dropdown-menu {
    position: absolute; top: calc(100% + 10px); left: 0; min-width: 240px;
    background: var(--white, #ffffff); border-radius: var(--radius, 12px);
    box-shadow: 0 16px 36px rgba(0,0,0,0.14);
    list-style: none; padding: 8px; margin: 0;
    opacity: 0; visibility: hidden; transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 20;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown-menu a {
    display: block; padding: 10px 14px !important; border-radius: 6px;
    font-size: 0.85rem !important; font-weight: 500;
    color: var(--text-mid, #4a5c55) !important; white-space: nowrap;
}
.nav-dropdown-menu a:hover { background: var(--green-50, #ebf5f3); color: var(--green-600, #006455) !important; }

/* Sub-menu "Halaman Kegiatan" (mobile) */
.mobile-menu summary.mobile-link-toggle {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 12px 0; text-decoration: none; cursor: pointer;
    font-size: 0.95rem; font-weight: 500; color: var(--text-mid, #4a5c55);
    border-bottom: 1px solid var(--green-50, #ebf5f3); list-style: none;
}
.mobile-menu summary.mobile-link-toggle::-webkit-details-marker { display: none; }
.mobile-menu summary.mobile-link-toggle::after {
    content: ''; width: 9px; height: 9px; flex-shrink: 0;
    border-right: 2px solid var(--text-muted, #6b7c75); border-bottom: 2px solid var(--text-muted, #6b7c75);
    transform: rotate(45deg); transition: transform 0.2s ease; margin-top: -3px;
}
.mobile-menu details[open] summary.mobile-link-toggle::after { transform: rotate(-135deg); margin-top: 3px; }
.mobile-menu .mobile-sublink { padding: 10px 0 10px 18px !important; font-size: 0.88rem !important; color: var(--text-muted, #6b7c75) !important; }

@media (max-width: 1180px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
}

/* ── MODAL PILIHAN PENDAFTARAN ── */
.modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 500;
    background: rgba(10,25,18,0.72); backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    align-items: center; justify-content: center; padding: 24px;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: white; border-radius: var(--radius-lg, 24px);
    max-width: 660px; width: 100%;
    max-height: 88vh; overflow-y: auto;
    box-shadow: 0 32px 80px rgba(0,0,0,0.3);
}
.modal-box-choice { position: relative; max-width: 460px; }
.modal-close-light {
    position: absolute; top: 16px; right: 16px; z-index: 10;
    width: 34px; height: 34px; border-radius: 50%; border: none; cursor: pointer;
    background: var(--green-50, #ebf5f3); color: var(--text-mid, #4a5c55);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; line-height: 1; transition: background 0.2s, color 0.2s;
}
.modal-close-light:hover { background: var(--green-100, #cce8e2); color: var(--green-700, #1f5c40); }
.reg-choice-content { padding: 40px 36px 36px; }
.reg-choice-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem; font-weight: 700; color: var(--green-900, #132e21);
    line-height: 1.3; margin-bottom: 10px;
}
.reg-choice-desc { font-size: 0.92rem; color: var(--text-mid, #4a5c55); line-height: 1.65; margin-bottom: 26px; }

.reg-options { display: flex; flex-direction: column; gap: 14px; }
.reg-option {
    display: flex; align-items: center; gap: 14px;
    padding: 16px 18px; border-radius: var(--radius, 12px);
    border: 1.5px solid var(--border, #d1dfda); text-decoration: none;
    background: var(--green-50, #ebf5f3);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.reg-option:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(0,100,85,0.14); }
.reg-option-icon { width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.reg-option-icon svg { width: 21px; height: 21px; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.reg-option-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.reg-option-title { font-size: 0.96rem; font-weight: 700; color: var(--text-dark, #1b2622); line-height: 1.3; }
.reg-option-sub { font-size: 0.79rem; color: var(--text-muted, #6b7c75); line-height: 1.45; }
.reg-option-arrow { flex-shrink: 0; width: 18px; height: 18px; stroke-width: 2; transition: transform 0.2s ease; }
.reg-option:hover .reg-option-arrow { transform: translateX(3px); }

.reg-option-primary { border-color: rgba(0,100,85,0.18); }
.reg-option-primary .reg-option-icon { background: var(--green-600, #006455); color: white; }
.reg-option-primary:hover { border-color: var(--green-500, #008773); background: var(--green-100, #cce8e2); }
.reg-option-primary .reg-option-arrow { color: var(--green-600, #006455); }

.reg-option-secondary { background: var(--amber-100, #fef3c7); border-color: rgba(180,83,9,0.2); }
.reg-option-secondary .reg-option-icon { background: var(--amber-500, #d97706); color: white; }
.reg-option-secondary:hover { border-color: var(--amber-500, #d97706); background: #fbe1ad; }
.reg-option-secondary .reg-option-arrow { color: var(--amber-600, #b45309); }

.reg-option-tertiary { background: var(--white, #ffffff); border-color: rgba(31,97,68,0.25); }
.reg-option-tertiary .reg-option-icon { background: var(--green-700, #1f5c40); color: white; }
.reg-option-tertiary:hover { border-color: var(--green-700, #1f5c40); background: var(--green-50, #ebf5f3); }
.reg-option-tertiary .reg-option-arrow { color: var(--green-700, #1f5c40); }

/* Opsi pendaftaran yang sudah ditutup (Pemakalah, Speaker Semeja Makan) */
.reg-option-closed { background: #f3f3f0; border-color: rgba(0,0,0,0.08); }
.reg-option-closed .reg-option-icon { background: #c7c7bf; color: #6b6b62; }
.reg-option-closed:hover { transform: none; box-shadow: none; background: #ebebe6; border-color: rgba(0,0,0,0.12); }
.reg-option-closed .reg-option-title { color: var(--text-mid, #4a5c55); }
.reg-option-closed-badge {
    flex-shrink: 0; display: inline-flex; align-items: center;
    background: rgba(168, 50, 50, 0.1); color: #a83232;
    font-size: 0.68rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em;
    padding: 4px 10px; border-radius: 999px; white-space: nowrap;
}

/* Popup: Formulir Ditutup */
.closed-form-box { position: relative; max-width: 420px; text-align: center; }
.closed-form-content { padding: 44px 32px 32px; }
.closed-form-icon {
    width: 64px; height: 64px; border-radius: 50%;
    background: rgba(168,50,50,0.1); color: #a83232;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
}
.closed-form-icon svg { width: 30px; height: 30px; }
.closed-form-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem; font-weight: 700; color: var(--green-900, #132e21);
    margin-bottom: 12px;
}
.closed-form-desc { font-size: 0.92rem; color: var(--text-mid, #4a5c55); line-height: 1.65; margin-bottom: 26px; }
.closed-form-btn {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--green-600, #006455); color: white;
    font-size: 0.9rem; font-weight: 700; font-family: inherit;
    padding: 12px 32px; border: none; border-radius: 999px; cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}
.closed-form-btn:hover { background: var(--green-700, #1f5c40); transform: translateY(-2px); }

@media (max-width: 480px) {
    .reg-option { padding: 14px; gap: 12px; }
    .reg-option-icon { width: 38px; height: 38px; }
    .reg-option-icon svg { width: 18px; height: 18px; }
}

/* ── FOOTER ── */
footer {
    background: var(--green-900, #132e21); border-top: 1px solid rgba(255,255,255,0.08); padding: 48px 5% 32px;
}
.footer-inner {
    max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
}
.footer-brand .abbr { font-size: 1.1rem; font-weight: 700; color: #6dd8b8; letter-spacing: 0.08em; margin-bottom: 4px; }
.footer-brand .tagline { font-size: 0.78rem; color: rgba(255,255,255,0.45); line-height: 1.6; max-width: 280px; }
.footer-col h4 { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 0.85rem; color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.2s; }
.footer-col ul a:hover { color: #6dd8b8; }
.footer-bottom {
    max-width: 1100px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08);
    display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; color: rgba(255,255,255,0.35);
}

.partner-logo-img {
    position: relative; padding: 10px;
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.3s ease; text-decoration: none;
}
.partner-logo-img:hover { transform: translateY(-4px); }
.partner-logo-img img { max-height: 65px; width: auto; object-fit: contain; }
.partner-logo-img::after {
    content: attr(data-name);
    position: absolute; bottom: 100%; left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: rgba(0, 0, 0, 0.85); border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff; padding: 6px 14px; border-radius: 6px;
    font-size: 0.75rem; font-weight: 600; white-space: nowrap;
    opacity: 0; visibility: hidden; transition: all 0.3s ease;
    pointer-events: none; z-index: 20; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.partner-logo-img:hover::after { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(-4px); }

@media (max-width: 900px) {
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 680px) {
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}