/* FrameFlow Custom Styles — Film Strip Aesthetic */

/* =============================================
 * 1. CSS Variables (Color System)
 * ============================================= */
:root {
    --bg-main: #0c0a09;
    --bg-surface: #1c1917;
    --bg-surface-hover: #292524;
    --col-primary: #d97706;
    --col-primary-hover: #b45309;
    --col-primary-glow: rgba(217, 119, 6, 0.4);
    --col-text-main: #e7e5e4;
    --col-text-muted: #a8a29e;
    --col-border: rgba(255, 255, 255, 0.05);
    --col-success: #65a30d;
    --col-warning: #b45309;
    --col-error: #be123c;
}

/* =============================================
 * 2. Global Transitions
 * ============================================= */
body, div, button, input, span, aside, header, a, section, main {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =============================================
 * 3. No-scrollbar utility
 * ============================================= */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* =============================================
 * 4. Pulse Glow Animation
 * ============================================= */
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px -5px var(--col-primary-glow); }
    50% { box-shadow: 0 0 40px -5px var(--col-primary-glow); }
}
.animate-pulse-glow {
    animation: pulse-glow 3s infinite;
}

/* =============================================
 * 5. Custom Scrollbar
 * ============================================= */
.custom-scroll::-webkit-scrollbar { width: 4px; }
.custom-scroll::-webkit-scrollbar-track { background: var(--bg-main); }
.custom-scroll::-webkit-scrollbar-thumb { background: var(--bg-surface-hover); border-radius: 2px; }
.custom-scroll::-webkit-scrollbar-thumb:hover { background: var(--col-primary); }

/* =============================================
 * 6. Sidebar Submenu Popover (Collapsed Mode)
 * ============================================= */
.submenu-popover {
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px) scale(0.95);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}
.sidebar-collapsed .group:hover .submenu-popover {
    opacity: 1;
    visibility: visible;
    transform: translateX(0) scale(1);
    pointer-events: auto;
}

/* =============================================
 * 7. Film Sidebar Background
 * ============================================= */
.film-sidebar {
    background-color: #050505;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

/* =============================================
 * 8. Film Sprockets (Perforations)
 * ============================================= */
.sprockets-col {
    width: 12px;
    height: 100%;
    background-image: linear-gradient(to bottom,
        transparent 10px,
        rgba(255, 255, 255, 0.15) 10px,
        rgba(255, 255, 255, 0.15) 22px,
        transparent 22px
    );
    background-size: 100% 32px;
    position: absolute;
    top: 0;
    z-index: 10;
    pointer-events: none;
}
.sprockets-left { left: 4px; }
.sprockets-right { right: 4px; }