/**
 * glass-ui.css — Premium Liquid Glassmorphism System
 * Component stylings, blur effects, noise overlays, and edge light systems.
 */

:root {
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: 1px solid rgba(255, 255, 255, 0.06);
    --glass-border-light: 1px solid rgba(255, 255, 255, 0.12);
    --glass-blur: blur(6x);
    --glass-blur-heavy: blur(8px);

    --glass-shadow:
        0 8px 32px 0 rgba(0, 0, 0, 0.24),
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        inset 0 -1px 0 rgba(255, 255, 255, 0.06),
        inset 0 0 20px 2px rgba(255, 255, 255, 0.04);
}

/* ============================================
   GLASS COMPONENTS
   ============================================ */

/* Base Glass Card */
.glass-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    isolation: isolate;
}

/* Glass Panel (Sidebar, Action Bar) */
.glass-panel {
    background: rgba(20, 20, 20, 0.65);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: var(--glass-border);
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .glass-panel {
    background: rgba(255, 255, 255, 0.75);
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

/* Glass Noise Overlay */
.glass-noise {
    /* position: absolute; */
    /* inset: 0; */
    background: radial-gradient(circle at 30% 20%,
            rgba(255, 255, 255, 0.15),
            transparent 50%);
    /* opacity: 0.25; */
    pointer-events: none;
    z-index: 0;
}

[data-theme="dark"] .glass-noise {
    opacity: 0.15;
}

/* Edge Lighting System */
.glass-edge-light::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.6),
            transparent);
    z-index: 1;
    pointer-events: none;
}

.glass-edge-light::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg,
            rgba(255, 255, 255, 0.5),
            transparent,
            rgba(255, 255, 255, 0.1));
    z-index: 1;
    pointer-events: none;
}

/* ============================================
   GLASS INTERACTIVE ELEMENTS
   ============================================ */

/* Glass Buttons */
.glass-btn {
    background: rgba(255, 255, 255, 0.06);
    border: var(--glass-border);
    color: var(--text-main);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow:
        0 2px 6px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    cursor: pointer;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
}

.glass-btn:active {
    background: rgba(255, 255, 255, 0.04);
}

/* Glass Inputs */
.glass-input {
    background: rgba(0, 0, 0, 0.2) !important;
    /* border: 1px solid rgba(255, 255, 255, 0.08) !important; */
    backdrop-filter: blur(4px);
    color: var(--text-main) !important;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2) !important;
    transition: all 0.25s ease !important;
}

[data-theme="light"] .glass-input {
    background: rgba(255, 255, 255, 0.5) !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.03) !important;
}

.glass-input:focus {
    border-color: var(--primary) !important;
    box-shadow:
        inset 0 1px 2px rgba(0, 0, 0, 0.2),
        0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent) !important;
    outline: none;
}

/* ============================================
   SPLIT ACTION BAR & DROPDOWN
   ============================================ */

/* Split Download Button Container */
.download-split-btn {
    display: flex;
    align-items: stretch;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.download-split-btn:hover {
    box-shadow: var(--shadow-md);
}

/* Toggles & Menus */
.split-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    padding: 0 12px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.split-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Glass Option Dropdown Menu */
.glass-dropdown-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    min-width: 120px;
    background: rgba(30, 30, 30, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border-light);
    border-radius: var(--radius-md);
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 1000;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] .glass-dropdown-menu {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 0, 0, 0.08);
}

.glass-dropdown-menu.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* Dropdown Option Items */
.glass-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text-main);
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    text-align: left;
    cursor: pointer;
    transition: all 0.15s ease;
}

.glass-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--primary);
}

[data-theme="light"] .glass-dropdown-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.glass-dropdown-item i-ui {
    opacity: 0.7;
    transition: color 0.15s ease;
}

.glass-dropdown-item:hover i-ui {
    opacity: 1;
    color: var(--primary);
}

/* Liquid Pill Toast alert */
.glass-pill-toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    opacity: 0;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 10000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.glass-pill-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.glass-pill-toast.success {
    background: rgba(39, 174, 96, 0.15);
    border: 1px solid rgba(39, 174, 96, 0.3);
    color: #27ae60;
}

.glass-pill-toast.error {
    background: rgba(192, 57, 43, 0.15);
    border: 1px solid rgba(192, 57, 43, 0.3);
    color: #c0392b;
}