/* --- 1. VARIABLES & RESET --- */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-color: rgb(235, 236, 242);
    --text-color: #333;
    --header-bg: rgba(255, 255, 255, 0.7);
    --card-bg: rgba(255, 255, 255, 0.9);
    --border-color: rgba(0, 0, 0, 0.1);
    --hover-bg: rgba(0, 0, 0, 0.05);
    --bg-image: url("/assets/wallpapers/back-light.png");
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --header-bg: rgba(20, 20, 20, 0.7);
    --card-bg: rgba(30, 30, 30, 0.95);
    --border-color: rgba(255, 255, 255, 0.1);
    --hover-bg: rgba(255, 255, 255, 0.1);
    --bg-image: url("/assets/wallpapers/back-dark.png");
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-color) var(--bg-image) fixed;
    color: var(--text-color);
    line-height: 1.6;
}

/* --- 2. HEADER & NAV --- */
.page-header {
    position: sticky; top: 0; z-index: 1000;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1100px; margin: 0 auto; padding: 0.3rem 0.5rem;
    display: flex; align-items: center; justify-content: space-between;
}

.nav-right { display: flex; align-items: center; gap: 0.1rem; }

/* --- 3. UNIVERSAL DROPDOWN SYSTEM --- */
.dropdown { position: relative; display: inline-block; }

.dropdown-trigger {
    background: transparent; border: none; cursor: pointer;
    color: var(--text-color); font-family: inherit; font-size: 0.9rem;
    padding: 0.5rem 0.8rem; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}

.dropdown-trigger:hover,
.main-nav-submenu > a:hover { background: var(--hover-bg); }

/* The Submenu Container */
.submenu {
    position: absolute; top: 100%; margin-top: 5px;
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    z-index: 1010;

    /* Brave/Chrome Animation Engine */
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    pointer-events: none;
}

/* --- VERTICAL SOCIAL LIST --- */
.submenu.social-list {
    right: 0;
    min-width: 180px; /* Wider to fit text labels */
    padding: 0.5rem;
    display: flex !important;
    flex-direction: column;
    gap: 2px;
}

.submenu.social-list a {
    display: flex;
    align-items: center;
    gap: 12px; /* Space between icon and text */
    padding: 0.7rem 1rem;
    width: 100%;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.9rem;
    transition: background 0.2s;
}

.submenu.social-list a:hover {
    background: var(--hover-bg);
    border-radius: 8px;
}

.submenu.social-list .social-icon {
    width: 18px;
    height: 18px;
    opacity: 0.8;
}

/* Hover / keyboard focus — direct child only so nested dropdowns (e.g. Notes) stay independent */
.dropdown:hover > .submenu,
.dropdown:focus-within > .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

/* Invisible bridge to prevent menu closing on gap-cross */
.dropdown::after {
    content: ""; position: absolute; top: 100%; left: 0; width: 100%; height: 10px;
}

/* Main nav (avatar) — same panel pattern as other dropdowns */
.nav-main-dropdown { align-self: center; }

.nav-menu-trigger {
    padding: 0.25rem;
    border-radius: 10px;
}

.main-nav-submenu {
    left: 0;
    min-width: 220px;
}

.main-nav-submenu .dropdown {
    display: block;
    width: 100%;
}

.main-nav-submenu .dropdown .dropdown-trigger {
    width: 100%;
    justify-content: flex-start;
}

/* Wide screens: horizontal bar in the header; narrow: avatar dropdown only */
@media (min-width: 851px) {
    .nav-container > .nav-main-dropdown {
        display: flex;
        flex: 1;
        min-width: 0;
        align-items: center;
        gap: 0.4rem;
    }

    .nav-main-dropdown.dropdown::after {
        display: none;
    }

    .nav-main-dropdown > .main-nav-submenu {
        position: static !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        pointer-events: auto !important;
        margin: 0 !important;
        z-index: auto;

        display: flex !important;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        flex: 1;
        min-width: 0;

        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        border-radius: 0 !important;
        padding: 0 !important;
    }

    .main-nav-submenu > a,
    .main-nav-submenu .dropdown .dropdown-trigger {
        padding: 0.5rem 0.8rem;
        border-radius: 8px;
        font-size: 0.9rem;
    }

    .main-nav-submenu .dropdown {
        display: inline-block;
        width: auto;
    }

    .main-nav-submenu .dropdown .dropdown-trigger {
        width: auto;
        justify-content: center;
    }
}

/* Nested flyout above sibling links */
.submenu .submenu {
    z-index: 1020;
}

/* Submenu Variants */
.submenu:not(.icon-grid) { left: 0; min-width: 160px; padding: 0.5rem 0; }
.submenu.icon-grid {
    right: 0; padding: 8px;
    display: flex !important;
    flex-direction: column;
    gap: 4px;
    min-width: max-content;
    align-items: stretch;
}

/* Submenu Links */
.submenu a {
    text-decoration: none; color: var(--text-color);
    transition: background 0.2s ease; display: flex; align-items: center;
}
.submenu:not(.icon-grid) a { padding: 0.6rem 1.2rem; font-size: 0.9rem; }
.submenu.icon-grid a {
    min-height: 40px;
    padding: 0 0.75rem;
    justify-content: flex-start;
    gap: 0.5rem;
    font-size: 0.9rem;
}
.submenu a:hover { background: var(--hover-bg); border-radius: 8px; }

/* --- 4. ICONS & TOGGLES --- */
.social-icon { width: 20px; height: 20px; opacity: 0.7; transition: var(--transition); }
.social-icon:hover { opacity: 1; transform: scale(1.1); }
[data-theme="dark"] .social-icon { filter: brightness(0) invert(1); }

.theme-btn {
    background: transparent; border: 1px solid var(--border-color);
    width: 38px; height: 38px; border-radius: 10px; cursor: pointer;
    color: var(--text-color); font-size: 1.1rem; transition: var(--transition);
}
.theme-btn:hover { background: var(--hover-bg); }

/* --- 5. MOBILE & UTILITY --- */
.avatar { width: 52px; height: 52px; border-radius: 3px; cursor: pointer; display: block; }

main { max-width: 75ch; margin: 2rem auto; padding: 0 1.1rem; min-height: 80vh; }
.page-footer { text-align: center; padding: 3rem; opacity: 0.6; font-size: 0.8rem; }






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/* Wallpaper system */
body.wallpaper-active {
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    background-attachment: fixed !important;
}

/* Optional readability overlay */
body.wallpaper-active::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.25);
    pointer-events: none;
    z-index: -1;
}

.wallpaper-picker {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    padding-top: 6px;
}

.wp-option {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    background: #ccc;
}

.wp-option img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wp-option:hover {
    transform: scale(1.05);
}

.wp-option.active {
    border: 2px solid #4da3ff;
}

/* Wallpaper behavior */
body.wallpaper-active {
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    background-attachment: fixed !important;
}

body.wallpaper-active::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.25);
    pointer-events: none;
    z-index: -1;
}

.icon-thumb {
    width: auto !important;
    height: auto !important;
    max-width: 70% !important;
    max-height: 70% !important;
    object-fit: contain !important;
    display: block;
    margin: auto;
}

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