/* =============================================
   ORBES NODE — THEME SYSTEM (Dark / Light)
   Load BEFORE global.css and page-specific CSS
   ============================================= */

/* ── DARK (default) ── */
:root,
html[data-theme="dark"] {
    --bg-dark:     #080b12;
    --bg-card:     #0e1420;
    --bg-elevated: rgba(14,20,32,.9);
    --bg-section:  rgba(8,11,18,.75);
    --bg-nav:      rgba(8,11,18,.92);
    --bg-dropdown: rgba(10,14,22,.98);
    --bg-tooltip:  rgba(8,12,22,.97);
    --border:      rgba(122,221,255,0.12);
    --border-soft: rgba(255,255,255,.05);
    --border-faint:rgba(255,255,255,.04);
    --text:        #ffffff;
    --text-soft:   rgba(255,255,255,.8);
    --muted:       #8892a4;
    --cyan:        #7addff;
    --cyan-glow:   rgba(122,221,255,0.35);
    --yellow:      #facc15;
    --green:       #00e676;
    --btn-border:  rgba(255,255,255,0.12);
    --hover-bg:    rgba(255,255,255,.05);
    --hover-bg-soft: rgba(255,255,255,.02);
    --card-overlay-grad: linear-gradient(180deg, rgba(8,11,18,.15) 0%, rgba(8,11,18,.75) 100%);
    --shadow-color: rgba(0,0,0,.7);
    --bg-page-overlay: rgba(8,11,18,.93);
    --radius:      12px;
    --theme-icon-opacity: 1;
}

/* ── LIGHT ── */
html[data-theme="light"] {
    --bg-dark:     #f4f7fb;
    --bg-card:     #ffffff;
    --bg-elevated: rgba(255,255,255,.92);
    --bg-section:  rgba(244,247,251,.85);
    --bg-nav:      rgba(255,255,255,.92);
    --bg-dropdown: rgba(255,255,255,.98);
    --bg-tooltip:  rgba(255,255,255,.98);
    --border:      rgba(20,110,150,0.16);
    --border-soft: rgba(10,20,40,.08);
    --border-faint:rgba(10,20,40,.06);
    --text:        #0e1420;
    --text-soft:   rgba(14,20,32,.82);
    --muted:       #5b6678;
    --cyan:        #0089c2;
    --cyan-glow:   rgba(0,137,194,0.25);
    --yellow:      #b8860b;
    --green:       #0a9d52;
    --btn-border:  rgba(14,20,32,0.16);
    --hover-bg:    rgba(10,20,40,.05);
    --hover-bg-soft: rgba(10,20,40,.025);
    --card-overlay-grad: linear-gradient(180deg, rgba(244,247,251,.1) 0%, rgba(244,247,251,.82) 100%);
    --shadow-color: rgba(20,30,50,.18);
    --bg-page-overlay: rgba(244,247,251,.93);
    --radius:      12px;
    --theme-icon-opacity: .85;
}

/* Smooth transition when switching theme */
html.theme-transition,
html.theme-transition * {
    transition: background-color .25s ease, color .25s ease,
                border-color .25s ease, box-shadow .25s ease,
                fill .25s ease, stroke .25s ease !important;
}

/* ── THEME TOGGLE BUTTON ── */
.theme-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--hover-bg); border: 1px solid var(--btn-border);
    color: var(--text); cursor: pointer; flex-shrink: 0;
    transition: background .18s, border-color .18s, transform .18s;
    font-size: .78rem; position: relative; overflow: hidden;
}
.theme-toggle:hover { background: var(--hover-bg); border-color: var(--cyan); transform: translateY(-1px); }
.theme-toggle i { position: absolute; transition: opacity .25s ease, transform .35s ease; }
.theme-toggle .fa-sun  { opacity: 0; transform: rotate(60deg) scale(.4); color: var(--yellow); }
.theme-toggle .fa-moon { opacity: 1; transform: rotate(0) scale(1); color: var(--cyan); }
html[data-theme="light"] .theme-toggle .fa-sun  { opacity: 1; transform: rotate(0) scale(1); }
html[data-theme="light"] .theme-toggle .fa-moon { opacity: 0; transform: rotate(-60deg) scale(.4); }

/* ── USER MENU (logged in) — reuses the same dropdown look
      that the old language selector used (.lang-menu/.lang-option),
      kept here as a shared dropdown pattern. ── */
.user-menu-selector { position: relative; }
.user-menu-toggle {
    display: inline-flex; align-items: center; gap: 4px;
    background: var(--hover-bg); border: 1px solid var(--btn-border);
    color: var(--text); padding: 0 10px; height: 28px; border-radius: 14px;
    font-size: .8rem; font-weight: 600; cursor: pointer;
    transition: background .18s, border-color .18s;
}
.user-menu-toggle:hover { background: var(--hover-bg); border-color: var(--cyan); }
.user-menu-toggle .fa-chevron-down { font-size: .5rem; opacity: .7; transition: transform .2s; }
.user-menu-selector.open .user-menu-toggle .fa-chevron-down { transform: rotate(180deg); }

/* Shared dropdown menu style (used by the user menu) */
.lang-menu {
    position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--bg-dropdown); backdrop-filter: blur(16px);
    border: 1px solid var(--border); border-radius: 10px;
    padding: 6px; min-width: 180px;
    opacity: 0; visibility: hidden; transform: translateY(6px);
    transition: opacity .18s, transform .18s, visibility .18s;
    box-shadow: 0 20px 40px var(--shadow-color);
    z-index: 300;
}
.user-menu-selector.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-option {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: 7px; cursor: pointer;
    font-size: .85rem; color: var(--muted);
    transition: background .15s, color .15s;
}
.lang-option:hover { background: var(--hover-bg); color: var(--text); }

/* ── Wrapper for controls in navbar ── */
.utility-controls { display: flex; align-items: center; gap: 8px; }

@media (max-width: 980px) {
    .utility-controls { order: -1; }
}