iptvnator/libs/ui/components/src/lib/resizable/resizable.scss

/**
 * Resizable Directive Styles
 *
 * A refined, subtle resize handle that provides clear affordance
 * without being visually intrusive. Uses a vertical grip pattern
 * that becomes more prominent on hover/active states.
 */

// Prevent text selection during resize
body.resizing-active {
    user-select: none !important;
    cursor: col-resize !important;

    * {
        cursor: col-resize !important;
    }
}

// Base element styles
.resizable-element {
    // Smooth transition when not actively resizing
    &:not(.is-resizing) {
        transition: width 0.15s ease-out;
    }

    &.is-resizing {
        transition: none;
    }
}

// Resize handle base styles
.resize-handle {
    app-region: no-drag;
    position: absolute;
    top: 0;
    bottom: 0;
    width: 12px;
    z-index: 100;
    cursor: col-resize;
    display: flex;
    align-items: center;
    justify-content: center;

    // Visual feedback on hover/active
    &::before {
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        width: 4px;
        background: transparent;
        transition: background-color 0.2s ease;
        border-radius: 2px;
    }

    &:hover::before,
    &:active::before {
        background: rgba(255, 255, 255, 0.08);
    }

    // Position variants
    &--right {
        right: -6px;

        &::before {
            left: 50%;
            transform: translateX(-50%);
        }
    }

    &--left {
        left: -6px;

        &::before {
            right: 50%;
            transform: translateX(50%);
        }
    }

    // The main visible line
    &__line {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 1px;
        transition: all 0.2s ease;
    }

    &:hover &__line {
        width: 2px;
        background: rgba(255, 255, 255, 0.25);
        box-shadow: 0 0 8px rgba(255, 255, 255, 0.1);
    }

    &:active &__line {
        width: 2px;
        background: var(--app-selection-color, #2f7bff);
        box-shadow: 0 0 12px var(--app-selection-glow, rgba(47, 123, 255, 0.3));
    }

    // Grip dots indicator
    &__grip {
        position: relative;
        display: flex;
        flex-direction: column;
        gap: 4px;
        opacity: 0;
        transition: opacity 0.2s ease;
        z-index: 1;

        span {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.4);
            transition: all 0.15s ease;
        }
    }

    &:hover &__grip {
        opacity: 1;

        span {
            background: rgba(255, 255, 255, 0.6);
        }
    }

    &:active &__grip {
        opacity: 1;

        span {
            background: var(--app-selection-color, #2f7bff);
            transform: scale(1.2);
        }
    }
}

// Light theme adjustments (if needed)
.light-theme {
    .resize-handle {
        &::before {
            background: transparent;
        }

        &:hover::before,
        &:active::before {
            background: rgba(0, 0, 0, 0.04);
        }

        &:active::before {
            background: rgba(0, 0, 0, 0.08);
        }

        &__line {
            background: rgba(0, 0, 0, 0.12);
        }

        &:hover &__line {
            background: rgba(0, 0, 0, 0.25);
            box-shadow: 0 0 8px rgba(0, 0, 0, 0.05);
        }

        &:active &__line {
            background: var(--app-selection-color, #2f7bff);
            box-shadow: 0 0 12px var(--app-selection-glow, rgba(47, 123, 255, 0.2));
        }

        &__grip {
            span {
                background: rgba(0, 0, 0, 0.3);
            }
        }

        &:hover &__grip {
            span {
                background: rgba(0, 0, 0, 0.5);
            }
        }
    }
}