/* =========================================
   Design Tokens (Custom Properties)
   ========================================= */
:root {
    --color-bg: #f4efdf;
    --color-text: #4a3b32;
    --color-text-light: #6a5646;
    --color-accent: #8b7355;
    --color-dark: #4a3b32;
    --color-cream: #f4efdf;
    --color-border: rgba(139, 115, 85, 0.3);
    --color-border-strong: rgba(139, 115, 85, 0.4);
    --font-body: 'Noto Naskh Arabic', sans-serif;
    --font-heading: 'Noto Kufi Arabic', sans-serif;
    --font-display: 'Reem Kufi Ink', sans-serif;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.05);
    --noise-bg: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    --arabesque-bg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cg fill='none' stroke='%238b7355' opacity='0.18'%3E%3Ccircle cx='50' cy='50' r='28' stroke-width='0.6'/%3E%3Ccircle cx='50' cy='50' r='18' stroke-width='0.4'/%3E%3Cpath d='M50 22 Q60 36 50 50 Q40 36 50 22Z' stroke-width='0.6' fill='%238b7355' fill-opacity='0.03'/%3E%3Cpath d='M50 78 Q60 64 50 50 Q40 64 50 78Z' stroke-width='0.6' fill='%238b7355' fill-opacity='0.03'/%3E%3Cpath d='M22 50 Q36 40 50 50 Q36 60 22 50Z' stroke-width='0.6' fill='%238b7355' fill-opacity='0.03'/%3E%3Cpath d='M78 50 Q64 40 50 50 Q64 60 78 50Z' stroke-width='0.6' fill='%238b7355' fill-opacity='0.03'/%3E%3Crect x='32' y='32' width='36' height='36' rx='2' transform='rotate(45 50 50)' stroke-width='0.5'/%3E%3Cpath d='M50 0 L50 22 M50 78 L50 100 M0 50 L22 50 M78 50 L100 50' stroke-width='0.3' opacity='0.5'/%3E%3C/g%3E%3C/svg%3E");
}

/* =========================================
   Base Styles
   ========================================= */
body {
    font-family: var(--font-body);
    direction: rtl;
    background-color: var(--color-bg);
    background-image:
        var(--noise-bg),
        var(--arabesque-bg),
        radial-gradient(ellipse at center, transparent 50%, rgba(74, 59, 50, 0.08) 100%),
        radial-gradient(ellipse at 50% 30%, rgba(255,255,255,0.45) 0%, transparent 70%),
        radial-gradient(ellipse at 50% 100%, rgba(139,115,85,0.06) 0%, transparent 60%);
    background-attachment: scroll, scroll, fixed, scroll, scroll;
    color: var(--color-text);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-y: auto;
}

/* Tree page: fixed-height, no scroll */
body.tree-page {
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
    box-sizing: border-box; /* padding-top is included in 100vh, not added on top */
}

/* Tree page: simpler background (pattern can interfere with SVG tree) */
body.tree-page {
    background-attachment: scroll;
}

/* Intro page: centered */
body.intro-page {
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    box-sizing: border-box;
}

/* =========================================
   Shared Content Page Layout
   ========================================= */
.header {
    text-align: center;
    padding: 30px 20px 0;
}

.header img {
    max-height: 350px;
    width: auto;
}

.content-container {
    max-width: 800px;
    width: 85%;
    margin: 40px auto 40px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    flex-grow: 1;
}

.content-container h2 {
    font-family: var(--font-heading);
    color: var(--color-accent);
    font-size: 22px;
    border-bottom: none;
    padding-bottom: 8px;
    margin-top: 30px;
    text-align: right;
}

.content-container h2:first-of-type {
    margin-top: 0;
}

.content-container p {
    font-size: 18px;
    line-height: 2;
    text-align: justify;
    margin-bottom: 15px;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 26px;
    color: var(--color-text);
    text-align: center;
    margin: 0 auto 25px;
    padding-bottom: 20px;
    border-bottom: none;
    line-height: 1.6;
    max-width: 600px;
    position: relative;
}

.page-title::after {
    content: none;
}

/* ── Back Button ── */
.back-btn-container {
    text-align: center;
    margin-top: 40px;
}

.back-btn {
    font-family: var(--font-heading);
    display: inline-block;
    background: var(--color-dark);
    color: var(--color-cream);
    text-decoration: none;
    padding: 12px 30px;
    border-radius: var(--radius-sm);
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.back-btn:hover {
    background: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* ── Content Pages Responsive ── */
@media (max-width: 768px) {
    .content-container {
        margin: 15px auto;
        padding: 25px;
        width: 90%;
    }

    .header img {
        max-height: 200px;
    }

    .page-title {
        font-size: 20px;
    }
}

/* =========================================
   Footer (shared)
   ========================================= */
.bottom-footer {
    flex-shrink: 0;
    z-index: 1000;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 0;
    margin-top: auto;
}

.footer-legend {
    background: var(--color-bg);
    color: #2c1a0e;
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: bold;
    padding: 7px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(139, 115, 85, 0.25);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 7px;
}

.legend-swatch {
    display: inline-block;
    width: 26px;
    height: 16px;
    border-radius: 4px;
    flex-shrink: 0;
}

.footer-credit {
    background: var(--color-dark);
    color: var(--color-cream);
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: bold;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.footer-whatsapp {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cream);
    opacity: 0.85;
    transition: opacity 0.2s ease, transform 0.2s ease;
    text-decoration: none;
    line-height: 1;
}

.footer-whatsapp:hover {
    opacity: 1;
    transform: scale(1.15);
}

@media (max-width: 480px) {
    .footer-legend {
        font-size: 10px;
        gap: 12px;
        padding: 6px 10px;
    }

    .legend-swatch {
        width: 20px;
        height: 13px;
    }
}

/* =========================================
   Top Navigation Bar
   ========================================= */
#top-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    height: 76px;
    background: rgba(244, 239, 223, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 12px rgba(74, 59, 50, 0.08);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 24px;
    box-sizing: border-box;
    direction: rtl;
}

/* Logo: first (rightmost in RTL) column */
#top-navbar > a:first-child {
    justify-self: start;
}

#navbar-logo {
    height: 60px;
    width: auto;
    display: block;
}

/* Links: center column */
#navbar-links {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-self: center;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
    position: relative;
}

.nav-link:hover {
    background: rgba(139, 115, 85, 0.1);
    color: var(--color-accent);
}

.nav-link.active {
    background: rgba(139, 115, 85, 0.12);
    color: var(--color-accent);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 20%;
    left: 20%;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

/* Hamburger toggle (mobile only) */
#navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-text);
    justify-self: end;
}

#navbar-toggle svg {
    width: 22px;
    height: 22px;
    display: block;
}

/* Mobile dropdown */
#navbar-mobile-menu {
    display: none;
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(244, 239, 223, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(74, 59, 50, 0.12);
    flex-direction: column;
    padding: 8px 0;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

#navbar-mobile-menu.open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

#navbar-mobile-menu .nav-link {
    padding: 14px 24px;
    font-size: 15px;
    border-radius: 0;
    text-align: right;
    border-bottom: 1px solid rgba(139, 115, 85, 0.1);
}

#navbar-mobile-menu .nav-link:last-child {
    border-bottom: none;
}

#navbar-mobile-menu .nav-link:hover {
    background: rgba(139, 115, 85, 0.08);
}

#navbar-mobile-menu .nav-link.active {
    background: rgba(139, 115, 85, 0.08);
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
}

/* Hide the desktop underline bar in mobile menu */
#navbar-mobile-menu .nav-link.active::after {
    display: none;
}

/* Push page content below the fixed nav */
body {
    padding-top: 76px;
}

/* Intro page has no navbar — remove padding */
body.intro-page {
    padding-top: 0;
}

/* Tree page: shift header overlay down */
body.tree-page {
    padding-top: 76px;
}

@media (max-width: 768px) {
    #navbar-links {
        display: none;
    }

    #navbar-toggle {
        display: block;
        grid-column: 3;
    }

    #top-navbar {
        padding: 0 16px;
    }

    /* Prevent wide horizontal logo from overflowing into the center/left */
    #navbar-logo {
        max-width: 42vw;
        height: auto;
        max-height: 52px;
    }
}

/* Legacy floating-menu support — hide on pages with navbar */
#floating-menu-container {
    display: none;
}

/* =========================================
   Floating Button (shared)
   ========================================= */
.floating-btn {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--color-border-strong);
    color: var(--color-text);
    font-size: 28px;
    font-weight: bold;
    width: 45px;
    height: 45px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    padding: 0;
    line-height: 1;
    touch-action: manipulation;
    user-select: none;
}

.floating-btn:hover {
    background: #ffffff;
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(139, 115, 85, 0.2);
}

/* Instant custom tooltip (JS-managed, appended to body to avoid clipping) */
.btn-tooltip {
    position: fixed;
    background: var(--color-dark);
    color: var(--color-cream);
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-body);
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    pointer-events: none;
    z-index: 10000;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.btn-tooltip.visible {
    opacity: 1;
    transform: scale(1);
}

.floating-btn svg {
    width: 20px !important;
    height: 20px !important;
    pointer-events: none;
}

/* =========================================
   Tree Page: Top Header
   ========================================= */
.top-header {
    text-align: center;
    padding: 15px;
    background: rgba(244, 239, 223, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
    z-index: 1000;
    overflow: hidden;
    width: 100%;
    pointer-events: auto;
}

.top-header.hidden {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    border-bottom: none;
}

.top-header img {
    max-height: 400px;
    width: auto;
}

.top-header h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 35px;
    color: var(--color-text);
}

/* Nav Bar */
.nav-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    z-index: 999;
    flex-shrink: 0;
    flex-wrap: wrap;
    pointer-events: auto;
}

.nav-bar button, .nav-bar a, .nav-bar input {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--color-border-strong);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: bold;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    outline: none;
}

.nav-bar button:hover, .nav-bar a:hover {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 8px rgba(139, 115, 85, 0.15);
    transform: translateY(-2px);
}

/* =========================================
   Tree Page: UI Wrapper Overlay
   ========================================= */
#ui-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s;
    transition-delay: 0.1s;
    pointer-events: none;
}

#ui-wrapper.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition-delay: 0s;
}

/* =========================================
   Tree Page: D3 Nodes & Links
   ========================================= */
.node {
    filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.3));
    transition: filter 0.2s ease;
}

.node:hover {
    filter: drop-shadow(4px 6px 10px rgba(0, 0, 0, 0.7));
    cursor: pointer;
}

.node rect {
    fill: #ffffff;
    stroke: #2c3e50;
    stroke-width: 3px;
    transition: fill 0.4s ease, stroke 0.4s ease;
}

.node rect.highlight {
    fill: #060606 !important;
    stroke: #070707 !important;
}

.node text.highlight {
    fill: #fbf9f9 !important;
}

.node text {
    font-family: var(--font-body);
}

.link {
    fill: none;
    stroke: #747a7a;
    stroke-width: 2.5px;
}

.node.has-children rect {
    fill: #e8f0f2;
}

.node.collapsed rect {
    fill: rgb(194, 194, 205);
}

#tree-container {
    direction: ltr;
    flex-grow: 1;
    overflow: auto;
    position: relative;
}

/* =========================================
   Tree Page: Tooltip
   ========================================= */
#tooltip {
    position: absolute;
    text-align: center;
    padding: 8px 12px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    pointer-events: none;
    opacity: 0;
    direction: rtl;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 2000;
    width: 250px;
    white-space: normal;
    word-wrap: break-word;
    line-height: 1.6;
}

/* =========================================
   Tree Page: Search
   ========================================= */
.search-container input[type="text"] {
    background: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--color-border-strong);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: bold;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    outline: none;
    width: 30%;
    margin: 0 auto;
    display: block;
    direction: rtl;
    text-align: right;
}

/* =========================================
   Tree Page: Right-Side Control Column
   ========================================= */
#right-controls {
    position: fixed;
    top: 96px; /* 76px navbar + 20px gap */
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1001;
}

#floating-search-container {
    position: relative;
    display: flex;
    height: 45px;
}

.search-wrapper {
    position: fixed;
    top: 96px; /* matches #right-controls top */
    right: 73px; /* 20px right-controls offset + 45px button width + 8px gap */
    width: 250px;
    z-index: 1001;
}

.search-wrapper input {
    width: 100%;
    height: 45px;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px solid var(--color-accent);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: bold;
    padding: 0 15px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    outline: none;
    direction: rtl;
    text-align: right;
}

#search-box:focus {
    background: rgba(255, 255, 255, 0.85);
    border: 2px solid var(--color-accent);
    box-shadow: 0 0 10px rgba(139, 115, 85, 0.3);
    outline: none;
}

ul#search-results {
    top: 50px;
    right: 0;
    left: auto;
    position: absolute;
    width: 100%;
    margin: 0;
    font-family: var(--font-body);
    list-style-type: none;
    padding: 0;
    display: none;
    background: rgba(244, 239, 223, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

ul#search-results li {
    padding: 12px 15px;
    cursor: pointer;
    direction: rtl;
    border-bottom: 1px solid rgba(139, 115, 85, 0.2);
    text-align: right;
    font-size: 14px;
}

ul#search-results li:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* =========================================
   Tree Page: Zoom Controls
   ========================================= */
.zoom-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.zoom-controls button:hover {
    background: #ffffff;
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(139, 115, 85, 0.2);
}

/* =========================================
   Tree Page: Controls Toggle Panel
   ========================================= */
#controls-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transform: translateY(-8px);
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.35s ease,
                transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

#controls-panel.open {
    max-height: 350px;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

#controls-panel.open .floating-btn:nth-child(1) { transition-delay: 0.04s; }
#controls-panel.open .floating-btn:nth-child(2) { transition-delay: 0.08s; }
#controls-panel.open .floating-btn:nth-child(3) { transition-delay: 0.12s; }
#controls-panel.open .floating-btn:nth-child(4) { transition-delay: 0.16s; }
#controls-panel.open .floating-btn:nth-child(5) { transition-delay: 0.20s; }
#controls-panel.open .floating-btn:nth-child(6) { transition-delay: 0.24s; }

#controls-toggle-btn.active {
    background: rgba(139, 115, 85, 0.18);
    border-color: rgba(139, 115, 85, 0.7);
    box-shadow: 0 4px 12px rgba(139, 115, 85, 0.25);
}

/* Desktop: hide toggle, keep controls always open */
@media (min-width: 769px) {
    #controls-toggle-btn {
        display: none;
    }

    #controls-panel {
        max-height: none !important;
        opacity: 1 !important;
        transform: none !important;
        pointer-events: auto !important;
        overflow: visible !important;
        transition: none !important;
    }
}

/* =========================================
   Tree Page: Share Button & Toast
   ========================================= */
#share-btn {
    /* flows naturally at the bottom of #right-controls */
}

#share-toast {
    position: fixed;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--color-dark);
    color: var(--color-cream);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: bold;
    padding: 10px 22px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 3000;
    white-space: nowrap;
}

#share-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* =========================================
   Mobile: Navbar Tree Action Icons
   ========================================= */
#navbar-tree-actions {
    display: none; /* shown only on mobile */
    position: fixed;
    top: 0;
    left: 56px; /* start after the hamburger button */
    height: 76px;
    z-index: 1002;
    align-items: center;
    padding: 0 4px;
    gap: 2px;
    pointer-events: none; /* container is invisible to clicks */
}

#navbar-tree-actions .navbar-tree-btn {
    pointer-events: auto; /* only the buttons themselves are clickable */
}

.navbar-tree-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, color 0.2s ease;
    touch-action: manipulation;
}

.navbar-tree-btn:active,
.navbar-tree-btn.active {
    background: rgba(139, 115, 85, 0.12);
    color: var(--color-accent);
}

/* Controls dropdown slides down from below the navbar */
#navbar-controls-dropdown {
    display: flex;
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(244, 239, 223, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 16px rgba(74, 59, 50, 0.1);
    z-index: 1001;
    padding: 12px 16px;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 12px;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
}

#navbar-controls-dropdown.open {
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0s;
}

/* ── Tree page mobile overrides (must come after all tree CSS) ── */
@media (max-width: 768px) {
    /* Hide desktop right-controls column */
    #right-controls {
        display: none;
    }

    /* Show navbar tree icons */
    #navbar-tree-actions {
        display: flex;
    }

    /* Search wrapper drops down just below the navbar */
    .search-wrapper {
        position: fixed;
        top: 84px;
        right: 16px;
        left: 16px;
        width: auto;
        bottom: auto;
    }

    /* 16px minimum prevents iOS/Android from auto-zooming on input focus */
    .search-wrapper input {
        font-size: 16px;
    }
}

/* =========================================
   Tree Page: Header Overlay (Logo + Lineage)
   ========================================= */
/* =========================================
   Mobile Responsive
   ========================================= */
@media (max-width: 600px) {
    .top-header {
        padding: 10px 5px;
    }

    .top-header img {
        max-height: 180px;
        margin-bottom: 5px;
    }

    .search-wrapper {
        width: min(210px, calc(100vw - 80px));
    }

    .search-container {
        margin-top: 240px;
    }

    .search-container input[type="text"] {
        width: 70%;
        font-size: 14px;
        padding: 8px;
    }

}

/* =========================================
   Shared Date Parts (tree popup + deceased)
   ========================================= */
.death-date-parts {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0 4px;
    white-space: nowrap;
}

.death-date-hijri,
.death-date-miladi {
    white-space: nowrap;
}

.death-date-sep {
    white-space: nowrap;
}

@media (max-width: 480px) {
    .death-date-parts {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }

    .death-date-sep {
        display: none;
    }
}

/* =========================================
   Print Stylesheet
   ========================================= */
@media print {
    body {
        background-image: none !important;
        background-color: #fff !important;
        color: #000 !important;
        overflow: visible !important;
        height: auto !important;
        min-height: 0 !important;
    }

    .floating-btn,
    #floating-menu-container,
    #right-controls,
    #navbar-tree-actions,
    #navbar-controls-dropdown,
    #share-toast,
    .back-btn-container,
    #ui-wrapper,
    #particles-canvas,
    #sparkle-canvas {
        display: none !important;
    }


    .content-container {
        background: none !important;
        backdrop-filter: none !important;
        border: none !important;
        box-shadow: none !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .bottom-footer {
        box-shadow: none !important;
    }

    .footer-legend {
        border-top: 1px solid #ccc !important;
    }

    .header img {
        max-height: 150px !important;
    }

    a {
        text-decoration: none !important;
        color: inherit !important;
    }
}